Official Organ of the Florida Entomological Soce'
VOL. VII SPRING NUMBER
April, 1924/, t -
THE CHRYSOMELIDAE OF FLORIDA
By W. S. BLATCHLEY
(Continued from Vol. VII, No. 3)
III. Antipus DeGeer=(Anomoea Lac.)
Rather stout elongate (7-8 mm.) subcylindrical, dull yellow
species having the head inserted in thorax to eyes; thorax as
wide as elytra and with side margins; mandibles toothed; last
dorsal segment exposed, declivent; antennae short, serrate, not
received in grooves; surface not tuberculate; prosternum not
separating front coxae. The larvae are case-bearers and are
said to live mainly in ants' nests, feeding upon vegetable debris.
(This and Genus IV form the subfamily Clythrinae.)
*20. (15262). A. laticlavia (Forst.).-Numerous records from the north-
ern three-fourths of the State. Dunedin at porch light, Apr. 26. Occurs on
oak, citrus, etc.; "feeding on pine foliage, June 8" (Doz.). Also said to
injure leaves of cotton.
IV. Coscinoptera Lacordaire.
Small oblong (3-7 mm.) black pubescent species. The eggs are
attached to leaves of various plants. The larvae are case-bearers,
and feed upon dead leaves of the plants upon which the adults
are found. (Riley, Ins. Mo., VI, 127.)
*21. (15267). C. dominicana (Fabr).-Haulover and Tampa, very rare
(Sz.). Dunedin, one only, Apr. 5; Gainesville on oak (Doz.).
V. Chlamys Knoch.
Small robust blackish or bronze beetles (2-4 mm.) having the
upper surface furnished with numerous wart-like tubercles, and
antennae received in grooves. The larvae live on the surface of
leaves enclosed in cases formed of their own excrement. This
genus and the next are very closely allied forming the subfamily
Chlamydinae which is badly in need of revision.
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THE FLORIDA ENTOMOLOGIST
*22. (15297).' C. gibbosa (Fabr.).-Common throughout the State.
Usually listed as C. plicata (Fabr.). Common about Dunedin on roadside
herbage. On chinquepin blooms, evidently eating the pollen, at Gainesville,
May 20 (Doz.).
*23. (15298). C. tuberculata Klug.-Enterprise (Sz. Ms.); Sanford, La
Belle, Istokpoga and Dunedin (B1.); frequent about Dunedin, Dec.-Apr., on
flowers and foliage of a dwarf huckleberry. Ft. Myers (Kn.).
24. (15300). C. foveolata Knoch.-Tampa, rare (Sz.); Key West (Sz. Ms.).
VI. Exema Lacordaire.
Resemble Chlamys but smaller (1.8-2.7 mm.); the males usu-
ally with face white. Habits of larvae the same.
*25. (15305). E. gibber (Oliv.)-Common throughout the State. Occurs
during the winter on the foliage of oak, huckleberry, etc. Dimorphic in hue,
the typical form opaque black. My Chlamys nodulosa (1913, 22), based on
the bronzed form, is a synonym.
*26. (15306). E. conspersa (Mann.).-Taken in some numbers about
Dunedin by sweeping low moist cultivated tracts about the borders of
hammocks (Bl., 1920). No other record from the State, but a specimen
in the U. S. N. Mus. from Enterprise.
*27. (- ). E. neglecta Blatch, 1920, 69,-Common throughout the
southern half of the State; probably also in the northern portion. Frequents
the foliage and flowers of huckleberry and other low shrubs during the win-
ter and spring months. Usually listed as E. conspersa.
VII. Griburius Haldeman.
Small oblong robust yellow species (5-6 mm.), the elytra and
sometimes the thorax with black dots. Habits of larvae not known.
The species of this and the genera up to XIV possess the char-
acters mentioned under Antipus except that the antennae are
usually long and slender, and the prosternum separates the front
coxae. They belong to the subfamily Cryptocephalinae.
*28. (15307). G. larvatus (Newn.)-Throughout the State. Taken
frequently in spring about Dunedin by sweeping low herbage. Miami,
LaBelle, Cleveland and Paradise Key (Kn.).
VIII. Pachybrachys Redtenbacher.
A large genus of small compact subcylindrical species (2.5-5.5
mm.), varying much in color, from gray or yellow to black, or
red with black markings. Fall in his Revision (1915) includes
159 species from North America. Of these 26 have been definitely
recorded, some of them doubtless erroneously, from Florida. A
number of the other species, known as yet only from Georgia or
Alabama, probably occur in the northern part of the State. But
little is known of the food habits of the larvae. Schwarz wrote
Fall that they "are unquestionably all sac-bearers, but are difficult
to find and do not feed upon the foliage of plants."
SPRING NUMBER 51
29. (15312). P. pubescens (Oliv.)-St. Augustine (Ham.) as P. morosus
Hald., a synonym. Fall gives South Carolina as the most southern range
known to him.
*30. (15337). P. lodingi Bowd., 1909, 243.-Fall (1915) records this from
seven different stations, including Jacksonville and Key West, so that it
doubtless occurs throughout the State. Taken frequently about Dunedin,
Nov.-Apr.. by sweeping herbage in dry sandy localities.
31. (15358). P. sobrinus Hald.-Enterprise, rare (Sz.). No other State
record. Fall does not include Florida in his distributional records, though
pectoralis Melsh., a very closely allied species, is recorded by him from both
Georgia and Alabama. Occurs on black locust in Missouri (Riley).
32. (15365). P. illectus Fall, 1915, 370.-The types, now in the U.S.N.
Mus., were taken at Enterprise, May 20. No other record.
33. (15369). P. femoratus (Oliv.)-Enterprise and Key West (Fall,
1915). Occurs on hickory and oak in Alabama.
*34. (15370). P. characteristics Suffr., 1853, 176.-Known only from
Florida. Seven localities, including Key West and Jacksonville, are given
by Fall. In addition to these I have it from Sanford, Gainesville and Dune-
din. Taken by beating in dense wet hammocks.
35. (15393). P. peccans Suffr.-"Duval Co., Leng Coll." (Fall 1915).
No other State record. On Prunus and Rumex in the north.
*36. (15407). P. atomarius (Melsh.).-Throughout the State. Rare
at Dunedin, Apr. 3, by sweeping low huckleberry.
*37. (15410). P. stygicus Fall, 1915, 417.-The type is from Enterprise
and Fall gives six other localities, including Jacksonville and Key West. At
hand from Sanford, Dunedin and Gainesville. Frequent about Dunedin,
Jan.-Apr., on the flowers and foliage of dwarf huckleberry, etc. One of
the few wholly black species occurring in the State.
38. (15413). P. roboris Fall.-Jacksonville; Ashmead Coll., U. S. N.
Mus. (Fall). No other State record.
*39. (15414). P. spumarius Suffr.-In my collection from Ormond,
Sanford, Palmdale, Gulfport and Dunedin. Identified by Fall. Merritt and
Ft. Pierce on Oak (Wat.). The most common Pachybrachys about Dun-
edin, Dec.-Apr., on the foliage and flowers of low huckleberry and other
herbage, especially that about the borders of wet hammocks. Not before
recorded from the state.
*40. (15418).. P. varians Bowd.-Fall records this from six stations,
Jacksonville and Key West included. I have it from Eustis, Ocala, L.
Wales, Lakeland and Dunedin, Oct. 31-Apr. 15. Scarce about Dunedin, on
natal'grass and low herbage in dry soil.
41. (15419). P. conformis Suffr., 1853, 205.-Tampa and Enterprise
(Fall). Known only from Florida.
42. (15420). P. osceola Fall, 1915, 428.-Types in U. S. N. Mus. from
Enterprise. No other record.
43. (15432). P. tridens (Melsh.)-Enterprise, Lake Ashley and Tampa
(Sz.). Not included from Florida by Fall. Schwarz informed Fall that
this was the only eastern species, the imago of'which has a definite known
food plant, the plant being the poison ivy, Rhus toxicodendron L.
THE FLORIDA ENTOMOLOGIST
44. (15433). P. obsoletus Suffr.-One in Liebeck coll. from Florida
(Fall). No other State record. On black locust in Missouri (Riley).
*45. (15444). P. litigiosus Suffr.-Throughout the State. At hand
from Jacksonville, Gainesville, Ft. Myers and Dunedin. Common about
Dunedin, Nov.-Apr., on a wild bean along the railway embankment and
on herbage which has sprung up on recently burned-over tracts.
46. (15450). P. pallidipennis Suffr.-"Tampa, common" (Sz.). No
other State record. Known elsewhere only from Kansas and Texas.
47. (15451). P. othonus (Say).-Key West, Leng Coll. (Fall). Orlando
48. (15455). P. carbonarius Hald.-New Smyrna and Tampa (Sz.);
St. Augustine (Ham.); Jacksonville (C. & L.); Sanford (Wic.). In In-
diana occurs on oak and roadside herbage.
.49. (15457). P. viduatus (Fabr.).-Florida, Leng Coll. (Fall). Gaines-
50. (15459). P. trinotatus (Melsh.).-"Not rare" (Sz.); Enterprise
(C. & L.); Crescent City and Estero (Wic.). These records should perhaps
refer to pulvinatus. In Indiana occurs on flowers of Jersey tea, Ceanothus
*51. (15460). P. pulvinatus Suffr.-Capron, Baldwin, Enterprise,
Tampa and Key West (Fall). Scarce about Dunedin in March on tall grass
along the margins of ponds and moist hammocks. Closely resembles
trinotatus but the legs with small yellow spots, instead of wholly black as
52. (15462). P. luridus (Fabr.)-Jacksonville and Key West (Fall).
In Indiana occurs on the flowers of Jersey tea and false indigo, Baptisia
leucantha T. & G.
*53. (15466). P. discoideus Bowd., 1909, 239.-Type from Port Orange.
Occurs throughout the State. Formerly known as limbatus Newn., a preoccu-
pied name. At hand from Ormond, Ocala, Palmdale and Dunedin. Fre-
quent at Ormond and Dunedin in spring on oak and huckleberry. The
dull red elytra with abbreviated broad black sutural stripe easily distin-
guish the species.
*54. (15470). P. hepaticus (Melsh.).-Cedar Keys, New Smyrna and
Tampa (Sz.); St. Augustine (Ham.); Jacksonville (Fall). Scarce at Dun-
edin, Feb.-Apr., on ground beneath boards and by sweeping.
IX. Monachulus Leng.
Small compact, dark blue or black species (2-3 mm.). Larvase
unknown. The old name, Monachus Suffr., was preoccupied.
55. (15472). M. ater (Hald.).-Enterprise (C. & L.). No other State
record. Occurs in Indiana on milkweed.
*56. (15473). M. saponatus (Fabr.).-Throughout the State. At hand
from Sanford, Ft. Myers and Dunedin, Dec.-Apr. Occurs on herbage in
moist places, mating Dec. 9.
*57. (15474). M. thoracicus (Cr.), 1873, 31.-Types from South Car-
olina and Florida. Throughout the northern three-fourths of the State.
Abundant at Gainesville, Feb. 18-Mch. 8, on wild plum, cherry-laurel and
wild cherry blossoms (Doz.).
*58. (15475). M. auritus (Hald.).-Throughout the State. At hand
from six different stations, Febr.-Apr. Beaten from oak and wax myrtle.
Cerothamnus ceriferus L.
X. Cryptocephalus Geoffroy.
Small compact oblong subcylindrical species ((3-6.5 mm.),
usually prettily striped or spotted, and found on foliage of trees
or shrubs. Food habits of larvae unknown or unrecorded. The
genus is a large one and needs revision badly, 44 species being
recognized by Leng, 21 of which are known from Florida.
59. (15479 a). C. notatus quadrimaculatus Say.-"Fla." (Leng Coll.).
No definite locality record can be found. Frequent in Indiana on flowers
of Jersey tea.
*59a. (15479b). C. notatus fulvipennis Hald.-Northern three-fourths
of the State. At hand from Ocala and Dunedin, Oct.-Apr. Scarce at
Dunedin on oak. Gainesville on wild cherry bloom, March 9; oak and wild
buckeye foliage, Apr. 3-18 (Doz.). La Belle, Apr. (Kn.).
*60. (- ). C. binominis Newn.-Northern three-fourths of the State.
At hand from Ormond, Istopoga, L. Okeechobee and Dunedin, Mch.-Apr.
On oak and low huckleberry. Leng erroneously places this as a synonym
of Bassareus detritus (Oliv.) (See Bl., 1923, 30.). The C. distinctus Hald.
(Sz.) belongs here (Sz. Ms.).
*61. (15483). C. guttulatus Oliv.-Recorded or reported from six sta-
tions as far south as Sanford. Ormond, Apr. 1, on oak (Bl., 1902).
*62. (15486). C. bivius 'Newn.-Occurs as far south as Estero (Wic.).
Scarce at Ormond, Eustis, Sanford and Dunedin, Mch.-Apr., on oak and
*63. (15491). C. defects Lec.-According to Schaeffer (Ms.) my
C. sanfordi (1913, 23) is a synonym of defects. The latter is recorded only
from Texas. My specimens of sanfordi are from Sanford, Istokpoga and
Dunedin, Mch. 25-31 ,and were beaten from willow. Schaeffer also suggests
that defects Lec. is probably a color variety of nanus Fabr., the two dif-
fering only in color of elytra.
64. (15493). C. confluens Say.-"Florida" (Schaupp4). The only State
65. (15495). C. venustus Fabr.-"Common" (Sz.). No other printed
record. St. Augustine (Ham.). Gainesville, Jan.-Aug.; Largo (Wat.).
65a. (15495c). C. venustus ornatulus Clav., 1913, 1914. "Florida." No
*66. (15496). C. obsoletus Germ.-Throughout the State from Paradise
Key and Estero northward. At hand from six stations, Dec.-Apr. Taken
from flowers of golden-rod and other Compositae. The C. ornatus Fabr. of
the Schwarz list is a synonym (Sz. Ms.).
4 Bull. Brook, Ent. Soc., I, 1878, 34.
54- THE FLORIDA ENTOMOLOGIST
*67. (15497). C. nanus Fabr.-"Ark. and Fla.," (Lee., 1880). Jackson-
ville (C. & L.). Dunedin (Bl., 1917). A half dozen'specimens have been
taken at Dunedin, Feb.-Apr., all while beating in a densely wooded wet
*68. (15500). C. calidus Suffr.-Dunedin (Bl., 1917, 1922), Dec.-Jan.,
scarce on huckleberry and other low shrubs. LaGrange, Sept. 11 (Davis
*69. (- ). C. albicans Hald.-Gulfport, Schaeffer Coll.; Lakeland,
May 5, Davis Coll. (Bl., 1923). Leng places this as a synonym of gibbicollis
Hald., but Schaeffer considers them distinct.
*70. (15502). C. aulicus Hald.-Occurs from St. Augustine (Ham.)
south to Estero (Wic.). Dunedin (Bl., 1920a, 1923), scarce, Nov.-Apr.,
on low vegetation along the edge of a hammock. The largest (6-6.5 mm.)
of the Florida species.
*71. (15503). C. trivittatus Oliv.-St. Petersburg (Wic.); Bradentown
(Watson) Aug. 12, sweeping herbage in a vacant lot (Bl., 1923).
*72 (15505). C. incertus Oliv.-Jacksonville, Sept. 7 (Davis Coll.) south
to LaBelle; numerous records. The most common species about Dunedin,
Nov.-Apr., on wax myrtle, huckleberry, and especially the fetter-bush, Pieris
*73. (15506). C. pumilus Hald.- Common throughout the State, Nov.-
May, on willow and dead vines along streams; at Cape Sable, sweeping
in open prairie. The smallest member (1.8-2.2 mm.) of the genus.
74. (15514). C. badius Suffr.-"Enterprise, not rare." (Sz.); Crescent
City (Sz. Ms.). Cleveland (Kn.). Gainesville, in numbers on linden,
July 12-14 (Doz.).
75. (15515). C. schreibersi Suffr.-Tallahassee (Sz. Ms.); Jacksonville,
Apr. 21 (C. & L.). Schaeffer (Ms.) doubts its occurrence in Florida, though
Leconte (1880) records it from Georgia. Food plant, pine.
*76. (15516). C. tinctus Lec.-Ft. Capron (Sz. Ms.). Lakeland, Istok-
poga, Dunedin, Dec.-Feb. (Bl., 1914). Scarce on low herbage along the
borders of lakes and in wet hammocks; hibernating in Spanish moss at
*77. (15517). C. lateritius Newn.-Crescent City (Sz. Ms.); Lakeland
and Dunedin, Nov.-Mch. Occurs mainly on the flowers and foliage of a
tall, scurfy Ericad shrub, Xolisma ferruginea Walt., growing in very dry
78. (15519). C. luteolus Newn., 1840, 250.-Described from Florida.
Jacksonville, Apr. 21 (C. & L.).
XI. Diachus Leconte.
Very small (1.5-2.5 mm.) subcylindrical oval species, usually
with a metallic greenish or bronzed surface. Larvae unknown.
*79. (15521.) D. auratus Fabr.-Throughout the State. At hand from
Sanford, Lakeland, Ft. Myers and Dunedin, Feb.-Apr.; frequent on dwarf
huckleberry in open pine woods. Gainesville, May-Oct. (Wat.).
*80. (15525). D. squalens Suffr., 1852, 73.-Described from Florida.
Haulover and Ft. Capron (Sz. Ms.). Taken at Bassenger and Dunedin,
Feb. 27-Apr. 14, by beating wax-myrtle along the margin of dense ham-
XII. Bassareus Haldeman.
Species resembling those of Cryptocephalus in form and size
and like them varied in color. They have the front edge of sides
of thorax toothed or sinuate, whereas in Cryptocephalus it is
81. (15530). B. brunnipes (Oliv.).-St. Augustine (Ham.); Crescent
City (Sz. Ms.); Pablo Beach, Sept. 5; Lakeland, Mch. 8 (Davis Coll.).
LaBelle (Kn.). Gainesville, July' 5, on oak (Doz.). Listed as C. or B. con-
gestus, a synonym.
*82. (15533). B. detritus (Oliv.).-Istokpoga, Mch. 29 (Bl., 1923);
beating Spanish moss along the edge of a cypress swamp. No other State
*83. (15535). B. croceipennis Lec., 1880, 199.-Described from Florida.
Haulover and Tampa, rare (Sz.). St. Augustine (Ham.). Ormond and
Sanford, Mch. and Apr. on oak (Bl., 1914).
*84. (15536). B. lituratus (Fabr.).-Northern two-thirds of the State.
Common (Sz.). Lake Wales, Mch. 31, sweeping natal grass. Gainesville,
*84a. (15536b). B. lituratus lativittis (Germ.).-Same distribution as
preceding. Common (Sz.). Lake Wales and Dunedin; common at Dunedin,
Moh.-Apr., on oak sprouts, ferns in dense hammocks and dwarf huckleberry.
*84b. (15536c). B. lituratus vittatus Suffr.-Enterprise (C. & L.); Ft.
Myers (Davis Coll.). Sanford, Palmdale and Dunedin, Mch.-Apr., sweeping
grass and low herbage on old pond sites.
*84c. (15536d). B. lituratus recurvus Say.-Ft. Capron (Sz. Ms.).
Sanford, Apr. 4 on oak.
XIII. Triachus Leconte.
Minute (1.2-1.5 mm.), oval, convex species, piceous or dull yel-
low in hue.
*85. (15537). T. atomus (Suffr.).-Northern two-thirds of the State.
Eustis, Sanford and Dunedin, Feb.-Apr., on huckleberry and at porch light.
*86. (15538). T. cerinus Leconte, 1880, 197.-Common throughout the
State on oak, wax-myrtle and other foliage.
87. (15540). T. postremus Lec.-St. Augustine (Ham.). The only
State record and a doubtful one.
XIV. Lamprosoma Kirby.
Small oval convex piceous species, (2.5 mm.), having grooves
at the sides of prosternum for the antennae in repose. (Sub-
88. (15542). L. floridanum (Horn), 1893, 133.-Types from Biscayne
Bay. Fort Capron, Cocoanut Grove and Key West (Sz. Ms.). Known
only from Florida.
XV. Colaspis Fabricius.
Small or medium (4-6 mm.) bronzed or dull yellow species hav-
56 THE FLORIDA ENTOMOLOGIST
ing the thorax margined on sides, the front margin straight. The
larvae feed on the roots of strawberries and other plants, while
the adults attack the leaves of grapes and strawberries. The
species of this and the genera up to XXIV have the head inserted
in thorax to eyes, last dorsal segment covered by elytra, antennae
widely separated at base, front coxae rounded, third tarsal joint
bilobed. They belong to the subfamily Eumolpinae.
*89. (15555). C. brunnea (Fabr.).-"Common" (Sz.). Jacksbnville
(C. & L.). Ormond, Apr. 13. Gainesville on sweet potato foliage, Aug., and
cowpeas, July (Doz.). The typical form probably occurs only in the north-
ern third of the State, and both it and var. flavida, are known as the "grape
vine Colaspis, "the adults at times riddling the leaves of the vines, the larvae
attacking strawberry roots. (Riley, Third Mo. Rep., 1881). Also known to
feed on cotton leaves, clover, buckwheat, potatoes and corn.
*89a. (15555a). C. brunnea costipennis Cr.-"Not rare" (Sz.). Jack-
sonville (C. & L.). Ocala and Dunedin, Mch. 16-Apr. 11. Gainesville on
velvet beans (Wat.).
*89b. (15555b). C. brunnea flavida Say.-Occurs south to Ft. Myers.
Common at Dunedin on herbage and at porch light, Mar.-Sept. Gainesville,
*90. (15559). C. favosa Say.-"Common" (Sz.). Occurs as far south
as Cleveland (Kn.). Frequent about Dunedin, especially so at porch light,
June-Sept. Feeds on eucalyptus and grape foliage (Doz.).
XVI. Rhabdopterus Lefevre.
Small oblong-oval, convex, shining brown species (4-6 mm.),
having the prosternum broad and flat, its sides nearly parallel.
*91. (15563). R. praetexta (S'ay.)-Recorded from several stations as far
south as Biscayne Bay (Sz. Ms.). Dunedin, Mch. 20; beaten from the pepper-
vine, Ampelopsis arborea (L.). Probably in part confused with the next.
Usually listed as R. picipes (Oliv.). (See Bl., 1923, 30.).
*92. (- ). R. blatchleyi Bowd.5, 1921, 234.-Types from Dunedin,
collected by me. At hand from Sanford, Arch Creek, Little River, Bassenger,
L. Okeechobee, Sarasota and Dunedin, and probably occurs throughout the
southern half of the State (Bl., 1923). On flowers of thistle and foliage of
various shrubs in March and April. Larger and more oblong than
praetexta, with antennal joints 7, 10 and 11 dark.
XVII. Graphops Leconte.
Small subcylindrical, convex pubescent species (2.5-4 mm.),
brown or coppery bronzed in hue, the thorax without side margins
and head with a groove above the eyes. The larvae occur about
the roots of the evening primrose, Onagra biennis (L.), straw-
berry and other plants, the adults, often in large numbers, on the
5 The Entomologist, London, LIV.
*93. (15566). G. varians Lec.-Dunedin,:Mch. 19-Apr. 10 (Bl., 1920a);
the only record for the State. Beaten from oak and taken from the Amer-
ican sea-rocket, Cakile edentula (Bigel.), a fleshy crucifer growing along
the bay beach.
*94. (15568). G. curtipennis (Melsh).-Northern three-fourths of the
State, perhaps throughout. At hand from five stations. Very common, Feb.
24-Mch. 28, on St. Andrew's Cross, Ascyrum hypericoides L. at both Ft.
Myers and Palmdale.
95. (15569). G. marcassitus Cr.-"Haulover, iNew Smyrna and Tampa,
not rare" (Sz.). Not since recorded.
XVIII. Xanthonia Baly.
Small dull brown or fuscous pubescent species (3-3.5 mm.),
without a groove above eyes, thorax transverse, front femora
toothed. The adults occur on oak and hazel, and are sometimes
injurious to grapes. Larvae unknown.
*96. (15574). X. villosula (Melsh.)-Dunedin, Mch. 18. Beaten from
wax-myrtle. The first record for the State.
XIX. Fidia Baly.
Species resembling Xanthonia but larger (5.5-7 mm.), the thor-
ax cylindrical and femora not toothed. The adults occur on both
wild and cultivated grape and allied plants, often doing much
damage by riddling the leaves, while the larvae feed on the roots.
97. (15577). F. viticida Walsh---"Middle States to Dakota, Florida and
Texas" (Horn, 1892). No other State record can be found except that of the
*98. (15578). F. longipes (Melsh.).-One specimen at hand taken June
21 by P. W. Fattig at Gainesville. The first record for the State.
XX. Metachroma Leconte.
Small to medium, glabrous, oval, convex species (3-6.5 mm.),
dull yellow to piceous-brown in hue, having the thorax margined
on sides and head with grooves above the eyes. The adults occur
on oak and other foliage, and are sometimes injurious to grapes,
pecans, chestnuts, etc. The habits of larvae are unknown.
99. (15582). M. dubiosum (Say).-Atlantic Beach, Slosson Collection,
Jan.-Mch. (Leng Ms.). No other State record.
*100. (15588). M. terminal Horn, 1892, 215.-Types from Biscayne
Bay and Key West. Big Pine Key, Sept. (Davis Coll.). At hand from Cape
Sable, Key West, Chokoloskee and Caxambus. Beaten from shrubs in ham-
mocks (Bl., 1920). A member of the Tropical life z6ne.
101. (15590). M. interruptum (Say).-Crescent City (Sz.) Ms.). No
other State record.
102. (- ). M. robusta Blatch., 1924.-Ft. Myers, Fla., Apr. 20. Taken
by Davis; type in his collection.
(To be Continued)
Official Organ of The Florida Entomological Society, Gainesville,
J. R. W ATSON....................-..........-- ..--..................................... Editor
WILMON NEWELL.-.........--....................--..--.....-.....Associate Editor
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A NEW APHID ON CITRUS
For the past year or more growers in certain sections have
been having trouble with an unusually heavy infestation of aphids
on citrus. Until recently it was assumed that this was our old
acquaintance, Aphis gossypii, but during March and April of
this year the trouble increased to serious proportions and efforts
were made to determine the best method of control.
In line with this attempt Mr. Beyer, of the Department of En-
tomology of the Experiment Station, spent a week in Polk
County, studying the insect and the best method of control. He
at once recognized that the insect was not Aphis gossypii, but
was unable to place it. He sent specimens to Washington, as did
also Mr. Others, of the U. S. Bureau of Entomology, and there
it was provisionally determined by Mr. Mason as Aphis citricola,
a European species, but further study convinces him that it is
not that species. It seems to be a new species.
This new turn of affairs has naturally caused much concern
among the growers. Indeed the behavior of the insect,-its
rapid spread and the extremely heavy infestation,-is typical
of a recently introduced species.
The editor and Dr. E. W. Berger, of the Plant Board, and
Dean Newell inspected many groves in all sections of the infested
area. The extent of the infestation and damage is certainly ser-
ious. With the exception of the very first flush of growth in
the early spring, in many groves all new growth has been com-
pletely prevented from expanding, and a large proportion of
fruit, particularly that from the later blooms is on the ground,
and practically all the remainder extremely rough and deformed.
However, those inclined to regard the situation with pessimism
should be reminded that the common predators of other aphids
were observed working on this species in abundance. Three
species of lady-beetles, the Convergent, the Blood Red, and the
Twice-Stabbed Lady Beetles, were present in the order named as
far as abundance is concerned. Syrphus fly larvae were numer-
ous as well as the larvae of aphis lions and trash bugs. Mr.
Beyer's observations in Polk County show that the same is true
there. But the little hymenopterous parasite that is often so
effective in keeping down Aphis gossypii was not observed. A
small brownish beetle, identified by W. S. Blatchley as Cyphon
herplexus Blatch., is predaceous on this aphid.
The factor which makes a recently introduced insect so destruc-
tive is lack of enemies. This aphid has enemies. Just how effec-
tive they will be in checking the infestation it is as yet too early
Mr. Beyer has taken up the study of this insect intensively, to
work out its life history particularly with reference to its ene-
mies, both insect and fungus.
This aphid differs from A. gossypii in the large proportion of
winged adults which are very active. These winged forms have
a dark brown thorax and green abdomen.
MEETINGS OF THE SOCIETY
Feb. 28. The Society met in Science Hall, President Merrill in
the chair. Members present, Bates, Berger, Gray, Merrill,
Thone, Walker, and Watson.
The paper of the evening on the Orthoptera of Florida was
read by Mr. F. W. Walker and discussed by those present. Mr.
Walker reported 210 species and varieties from Florida. The
following are to be added to those recorded by Blatchley (1920)
from the state :-Parcoblatta zebra Hebard, P. divisa, Hebard,
Melanoplus querneus R. & H., Pterophylla camellifolia Fab., Neo-
conocephalus palustris Blatch., Orchelimum minor Brunner,
Conocephalus saltans (Scudder), Oecanthus exclamations
Davis. A few additional species have been recorded from Thomas-
ville and Billy's Island, Ga., a few miles only from the Florida
line, and doubtless occur within the state. Sixty-four of the 210
species have been described since 1900.
As in the case of other insects and plants the Orthoptera of
the extreme southern part of the state differ radically from
those of the northern part, being related to or identical with
West Indian forms. Mr. Walker would draw the line thru Bre-
THE FLORIDA ENTOMOLOGIST
Previously reported only from Trinidad.and St. Vincent, W. I.
Elaphrothrips longiceps (Bagnall).
On avocado trees. Found among the bud and scales and be-
tween the young developing leaves, for the most part on the ter-
minal shoots. Both adults and nymphs present. Puerto Arturo
Farm, Mar. 13.
Reported from Mexico and Nicaragua.
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THE FLORIDA ENTOMOLOGIST
vard, Orange, Lake and Hernando Counties. (This is further
north, particularly on the West Coast, than the botanists usu-
ally draw the dividing line-Ed.)
Representative of these southern forms would be Plectoptera
poeyi, a Cuban form taken at Key West; Anaxipha imitator
(Cuba) ; Orocharis gryllodes (W. I.), Tafalisca lurida (W. I.).
Among the problems that need attention are: the relation of
Florida forms or races to those outside the state, (Mr. Walker
mentioned particularly Brachypterus melanopli and Pterophylla
camellifolia in this connection) and the geographical and eco-
logical distribution within the state, a practically untouched
The speaker mentioned as particular regions that need atten-
tion the northern tier of counties, the Apalachicola region where
many relics are found among the plants, the coastal islands, the
tropical hammocks and the mangrove swamps. As an example
of the result to be expected from working unpromising and lit-
tle studied habitats he mentioned the following rare forms
found during a brief investigation of a mangrove swamp: Eubo-
rellia ambigua, Hygronemobius alleni, Anaxipha scia.
The thick tropical hammocks have already yielded Phrixa
maya, a Yucutan species; Turpilia rostrata; Oligacanthopus
prograptus, known only from south Florida; Anaxipha imitator;
Orocharis gryllodes and Tafalisca lurida.
ON A COLLECTION OF THYSANOPTERA
J. R. WATSON AND T. H. HUBBELL
The following is a report on a collection of thrips taken by
the junior author along the Tela and Truxillo divisions of the
United Fruit Company's railroad at, Honduras during March,
April and May 1923. All data on distribution and food plants
are from his field notes. The insects were determined by the
senior author. Two of the seven species (Sedulothrips hubbelli
and Liothrips perseae) were new and have been described else-
where (Bull. 168, Fla. Agric. Exp. Station).
Heliothrips haemorrhoidalis (Bouche). The greenhouse Thrips.
On avocadoes, Puerto Arturo. Mar. 13.
Selenothrips rubrocinctus (Giard). The red-banded Thrips.
On cocoa plants. Tela Division, Colorado District,
Aguas Calientes Farm. Not found on Dakota Farm.
A common and destructive pest of cacoa, avocado, and many
other plants in the West Indies, S. Fla., Ceylon, H. I., Uganda.
Franklinothrips vespiformis (Crawford)..
On cacoa plants infested with Selenothrips on which it was
Sedulothrips hubbelli Wats.
Tela Division, Guamas District. May 2, 3, 10. On branches of
a strangling fig tree immediately after it was felled and on bark
and log of one felled two weeks previously. Very rapid runners
which take refuge in cracks when disturbed.
Liothrips zeteki Hood.
Swept from low bushes and dry herbs at the base of a lime-
stone cliff. Truxillo (Puerto Castilla) Division, Piedra Blanca
Farm. April 9.
Described from Panama and not reported since.
Liothrips perseae Wats.
Abundant on young avocado tree, in the bud scales and be-
tween very young developing leaves, for the most part on the
terminal shoots. Both adults and nymphs present. Puerto Ar-
turo, about 5 kilometers inland from Tela. Mar. 13, 15, April 4.
Leptothrips mali (Fitch).
On a mimosa-like shrub in ditch along railroad at Puerto Ar-
turo. A common predaceous thrips found over most of North
America from Panama to B. C. and Mass.
Symphothrips punctatus Hood and Williams.
March 15. Described from Orlando, Florida, and since re-
ported from Miami and Cuba. The senior author has it from
Panama (collected from under the cap scales of cocoanuts by
Geo. B. Merrill of the Fla. State Plant Board) and Ala. (col-
lected from a satsuma tree by H. P. Loding in Mobile Co.).
Dicaiethrips brevicornis (Bagnall).
A nymph was beaten from the lower branches of a sour sop
tree at Puerto Arturo on March 13; several adults on April 4.
Found on clothing while passing thru a Guinea Grass pasture,
Progresso Mar. 23 (W. C. Bonacker, Coll.). Sweeping the air
from a motor car on the railroad between Maloa Farm and Tau-
jica Farm. On foliage of cacao; not common at this season altho
Mr. Davis stated that it is the common form at some seasons,
Colorado District, Dakota Farm. Swept from the luxuriant
growth of grasses and vines in the ditch at the side of the rail-
road thru the bananas, Dokota Farm, May 25.