The rose slugs

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Title:
The rose slugs
Physical Description:
Book
Creator:
Chittenden, F. H ( Frank Hurlbut ), 1858-1929
Publisher:
Gov't Print. Off. ( Washington )
Publication Date:

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All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 29650318
oclc - 27956820
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AA00020859:00001

Full Text


h'upcrty if thc tuiiei F! u



CIRCULAR No. 10 ) ...i '.

United States Dcpartm I

BUREAU OF ENT OGY
L 0 HOW ARD I'rr,,, ....r : ,
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skeleton hi i img tihe l'i\r. il, riiii iii 11 II i 'I ii i, .,-ih -/, .iII


A I| P Iit'61 lII1 I'M| 11 t]ll. ' l,'- zl A,- z , ll' t, ,',,1I. ,i , ,.
rl)"sew o'( li'. I TlNt',IW l I P |i. i iii I" lit -:I I I.i 1111 ] ii'i IIitx, \ ii .Il 1 I I>,
'l, t ,,,l l T-hu,..r,.-. T il,, li t ,f' 1ii -,\\ 1l| rirr ll ,i. Ir ;|lal, <-.
is llU'ri oll l to lle l -'l ile 1,,l ., l \\,, ,ll ,l ii. ,,tl\ .ll, ll.ru l 1.1 % 1I ili nl,,










fni let l isi i f 'l ||| i'.vii '|j it. l ,| |. r 1~ 1- r :||i*I I~lli l rl -
,h cti-m fi' mll, I',r,)|,,l. 1- [I,,.% :I., h.,1 1[|, ,, .,1 ',, I I. ,l ,,- .
A O w ith 111,-t llt .r I\\ ll|i -. till-\ : .- f'.,, ,i ,l ,i i ,i r,,l il|\ il Il] ,
N orli l it ti l' nIi t' I ,r', il,-.,, ,it. :;I-t. '. iui i.-, 1, 1 1.1., \ ., .11J .|
K Ii -!.1,. l ill. r; 1 l 0 ,i ti l 114' r 1111 .I i1 11 1.. I, F ill- i,,\ ,'i
p(P1111hv li, 11114 n i-Ir^ iirv 11t In l il \ | |;inl-- Ill it .11-1 -vI i n d.1111.1-1-11 l1%
lllfin Inju ry i- dlu ,,,iii- t,. 1 \,,I -,. :,n.|I 1l,,.tl ,44. 11i1,.,-,-. 01. ;
repres- enrntit.," -' ,i.-,i i ,.n i-. ,al1,.r ,d',[A-i il,l" I L [| |[ .41 .'nr"I ill .I11
s'ti t n-, n ],i, in tlt'ii lit'," lii.. im ; i :1 1 lit I % .,Il' .

THE AMERICAN ROSE SLUG.
I J.l. inh I',Jn 111 i.' ..... I, l [[., 1.i'
"| h i n nl 1i,'l i,' i n ]'+ i, l z i,. x : li l' -i l. l ii i ii ., l 1- 1.,1 ,i , ,ili I l n v\ ':i "
D.;'3 w ilu'i it d idl Jiiln;_i. i a-'ll', :il ( .lllti-ii r;i't M I--. A I Ill:Il
tin ,i, thi -111v i ,., :t- -,,t1ii -,. li l i,-t i li. l |,, :il i \I. 1 1h i l ]II, .- ,
M 4 ,0 1'.i,,i^ i> H[ iri-. 1I, ) ,,l \ -,.'c r i| :i,,,| -Ii li,.,l iH liil-it it .r'; l.
Mi ff.lly ". >,';1,,l ln Ill, illit a d ki .I l. .-,,,,,,. -,, -.. \\,,.. .1
llllis lllt'I 11li:1t :1 ])r llilii ,,f S Il An ,,Ir .|) .I| f tI i;,|i -| Ii, 'll||
nithiv~ll -if deIr(l[*I. illr it.
.i ]l l.lill~il,,rllrl!- ll.,., T. ,,1" l lr f.lllil "rll','il ,r! l.r..
113 4 1 Ill- 1/1- I T1ri I I
R o pill.; i h im of u c. . ~ ^ -










"'in -iawVlly l% Ic li4o.iKile, tih Auiiaricani rovi slug is a four-winged
lire-like iIIct f tig. 1. ,) of i dc1p 1hining black, k color, with tran.-
icti t li>ok lii I, 1 ii vi-l6.r darlk-birown vin. and a brown spot near
'Il,' 1iiddllh. of li'"Ig.i'o tile f'oreiif-.. 'The vwing expanse of the
'eriii lr;i i ', aliii, l \\,-li 'll-. f :aiii inch andI tile length of the bod i,
lulll on.-fiftli 'f .111i inch. ''lii' imile i-. a little minailler.
'l:i lhairva oir -Illii t/,. ti--. 1, 2) wilien full grown is about one-third
Of an itirli imir, :1i1-I -Ilirlkc. w itlh I li tltoracic( joint, enlarged. The


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I"' .
.11 b.-t n -7r 'T--' ,. (),l-
,.31 ,>,ivo..
C4
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,- I A .- im .i n I I Undi E ii, mi a. kduit wl Lu. w lur. larva; c
irk (f rn in rn' 1, :.1a, lion if r'*'' I:.; L liowang lIe 'ai ion of --4g .;a r upper
in .r'in ...il 1 fi l Of rA0F Il' If *z 1. r. NIii ha eniarL'ed : .I ; enlarged: .d.

lx14,1 i-. suit :iia, iIth l-OIIK- a-;n\(lY lIarva'-for exaimple. th' liepar Aug. The color is
-rteivaI aln\ve alltl yellow ish on thle lower -iirfiace. The head (fig. 2, c)
i a .i.ll, oval i, and yellow -.i. ad \ia, a black sput on each side,
iicl-los^izig tim e'ye.
DISTIILI- TION.

1'lm l 'lm'rtion li- been made by R'iley th t this sawfly undoubtedly
ri i- .nated in New Englhridai, mtren it feid upon wild rose. With the
lip-h ( of year-." if \ev assume thi. ftatvniment to be correct. it has been
li1-riiiinatd1:0 lin (iiliiIelr, ito' ito iiei-ilhoriig States and through the
iric~, 'ii itto inolugist. %ol. Ill. 1880, p. 115.
it'ir. 10.1j


II: l K I'I IVI"








wiiaporl titli i 't r li- i '- IIuIiut Itiser t ul fl'ei t(o I Ie tern L,:i''Ir -.
()w in 1 l,, -I L..l ll !l ,Iti s o1f the l'I.ll, l l., it I1 -1I] ,,, I t, 1 l1y fli ,lI
has uii l,.illnl.ll\ I,.,.i i,'r\ .slor. Its occurrence in \iv. Y,,li. N,.w
hJersey, I i 1,,. 11 I i ,, -. r,-i '' r-;,I, and \[i ,ii i,, 1 i bien knowni1, for a
imnl x'ulqr (if" \,.ir-. .,nil nt Jundoutt|edly occupHli s inzt, r, n,* i ,._'" StatcH'.
Il It.'l l \\r '., ,I ni l |orts ,,1'itjurieK- 11\ it ill I'v v-\1v.,rIi:,, N ,.w
Vurk. l, z' M I ', l ,iin iiil,, hl .,i,-:, ~; in tim t 3Vfnr it als.o lpju'ri d ait ( 'F,:,,.
hl1so vill'. Va... : inl i r. I',1.,, iI .i.y Oew lh d the \I )i. rit of ( 'Ili IwiI
tiji, \% l1,'r1 it ]Ila- Ii lii -inlic aIlrH" i ant :iuie Ii Ih',-' it ;W n pi) ort' e ll
in ju rioui ll, ('nii 'ii il ill I. )lin





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,..\ m ri '.i ... . r L t. i .
-i r mw i r I ,) w i~ f
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I' m' I' ' lo' I- I F r -k
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'wiirk o Iii r -I i. i lowIr M;r; l r in umlfr Iurt'i b, larvIi Ir IrsiiI





'iu i i i ilir'ii I i L *IIl I.l I I I l I-Il. I( I riI cl.ti
l~tFE HISTORY.


This p arU 'ifv.tl,,, ~-- from te earth at varr\ie.. times f, ,,,,
atlxni t ip I- t A p1. l,. ,," earlier in tee I I'rit ,,I" rIii,,l 1. to the
hi I 1 ,Ig k in M .,t. 1 ,. ;,, Ihr.li i.. I; to f Iarris, until thle i tllL, of (un .


Wihn dn.'t.u;.' i ,-r d-. I,,.-,hnlln.-at about the time( ) when the ea M tiri-
,in f n, ii lh ,i e'r !, ,l, ;tiin| ,nili lin,-i.' u n til th ey a re i nl fu ll l r,. f. ID lu'rii..,
t h is p t'r i,, - i l n. 1 "1 1 r l ',.n i il,.s
.'nr pm ri ,'lr il;irl\ -lIi,_;... -I,! iu th e e o c o!, f n u'iiii ,,_il n a n d a r t* n o t (,ft,,ii seen
inl tliulht. ,',-tin:.' ,liir1,,. ihe .,ir';i,.r part of the day on the leaves.
W he'n ,li-tmrli,,l tlir. ,Ir,,nv up their h;._- :,nii fill to i ,.. ,,li, ,ro nnil. 'I'lie
ii1lcs, hiom Ir,.. ,rn, ,,111 lie,.1, v l- in.,Il from one r1bush to another
and hovering n'u[ thelfir ls ctive panels.
[Cir 0ll5 I









Til'- ftal,.,hi iiI depo- iilng her eg.., turns :i little tr. ',ite side,
iiii-lit'-,it- II.I'r il>hi.;ite 'a-:w-Iikv ovipositor. and thru'ts it between
i lill- Ivo .iiti,.i.. t.of a lIef. uleplsitig ;a single egg in each incision. An
egfr i- \Ii,\ 11 :lo.llit il:tiir'al .-iZ' aIt 1/. figure 1. -tild iin1'h enlarged at e.
Tlilt' v'.- i- If r'i','ilal.' (oItlilne. inului flatteneda, amid measures about
,,-Ill It'll dlay- I'D tt\\o w 'vk,- aril i, Tli"1 l ofrv' r .ig..l.i ; ar if, l foiInd at work as earlY as the 1st of
May il Iltt I, DI-i n.t 4if (.'oh iiinli;i. ibut their tppvt-aranti'C il numbers is
'-il'ii iii lii d Itt' I til ti .-sc.'iiil ti' tiird i i we.k w if that iontli. O b'-er-
v:t iian- ,u(iiialuctd ;it a Wa-liiiigtrn. 1). (' .. -lihow that tlit' periods men-
iiliitl :iire -ulijeti to co'inidlr;alplh variatimoi. III N0O:) the first
-;I\\ lli .-. .)f I In ,. I ,_ ii,'i'1i ;Iii ( i ) l .IV( 1 -11114- "2. O w ingr to the
irrtgularity ilf alIi.Ie'al':.i('c of' tle I)irt'nIt '" flies." larvn't' of the first
rli'i'i' l l 11on ia Int' find '11 \'at %rk foir a periodl of live or six weeks.
l"a'a .ing- (ak e-, |I ile clii..f :it nigt. an ill i wa%' of I tin i' wi)ptpr surface -
,f' li' t'a''\e-. tlii' htl\-'r -i'fael nilt-. and im rild.ul' rc'ilailning as a
{elvhloii I fig. I. I. lI,', ie'i\i-. art' practit'allY l alwa.v- ;keletonized,
It .it i.l iiltt, ;I- i tin 1' ,';'i .t (if tilt, ,thtl'r two r'.S. 'lhii,-, except when
lli. lai'' 'aret' i a'rl i',)\n. l)lriiig thIe (d: 'tiite tl l- Ii'va usually i
1,-l, e.ii.,'aleI htl llnv' i enhr -,f:Ice ,If ;Ia leaf I fi "2. ,).
SOia'tiii-i' lli", la'r' atc t i a:aimiilant that not a Ilvaf on a bush is
-I'i,'t'u ;l. tan lhi' ftuia'' la ,l(- :I- tlilii.dli it hald llt't'ii -ctr lied by fire.
:iitii tt.'iitmiillv t]id ,i', (,f. ]ait' laiv' air' .-.i;itt'l to het between two
an'd tllI'('' w k- il atttailing tlhit'ii' '-'owtlI. Thlit'v t'a-t their skins
-'Pt.'rtl tinllt'-. lea'n iint tiltili ftl-tll o t ho l I 'l\t'-.. After the Iast
lll(1tin._ thie'e li,-v tlli ir e'e i'li' )IIv a ,d l .i Oi llic. .yellow ish.
Tl-,v tii'n il,'h-.iell into tilt- t.arih lI( ;i dlptlli 44 a' iti.rli -o more. and
t':lh11 i'ii-tirulit:- flat filuial tiraii-.f'rinlatii :1 -.oii lit' at fragile oval cell
,i'r t'tloi t'iIt(ld w"itlh particlt's If eartlh. Ilit' tille in-,t' remains as
:lar\I iitil IIv follow hl ,jig g-Iiig. whvi- r it traii-ftirim- to pupa shortly
hitfm'c i--Im iivi,' ill M a v.
TIi, -Itt'i- ie -ii l'ie-I'rotch',l. ii xliia, li rI'-pe 'i it r'.,tuhmbles many
otir i ..' ..-'-: of' ..:-awflies."
Rll-. 31 .DI F!-..
Tlii- ro-u -II, ui- ani thle otaher.s whlii.li will I t' disu..tssed are quite
.:i.-.il\' ,.o ilrli 'd v lh, I I .- M.e ~'r l dliltrc t inethod'-.
.S'///7i/' ' ir/./h .rtr.-.-A trol'olg st'reail of \\;tt'r directed upon
lit. 1,lai:it- fl'oii! lill'tent side- by an ordinary miarden hose or large
Ii i- I i I I-iii Irn i If ll ii' s I l'' Ii: I.-l I I i. a tli;mt illn ast':'riIiig twin generations
',, 1,1 i l ,' 11' 1li., hi. IIIII. s1 : llS i \' l l had Il,,- Iristil l s'O le s" n 11 d Ilndtl r observation. ]
It,.. N1M.E:. Miirtfrhll \\rits ,,,i til- hoi,,lI thi t site ha;im dlisprovedl Hnrris's state- ,l|
Iii l," i' 'l]l" It-i'tlr;iillur of tht' ilist't tuiiler close ubservation." (,4lst Annual
lirll. St;nilti ll'rt. Sue. M1issouri, 19s, p). 2SS.) 1
ii lu 1J









,,y'rili.i. if :l"ll!ll'd .VC1'y ,|:l\ o 01 iWO, Will ool1 l'iil riiMii'le ',f iitih
p cst. T hi'i. i-. .,[ iln' .ia ne tim e 1111 ec e llent rem e~dy IIin ow .lijihii-
o r p ulu n l i .r I n'l i n s ~e t s a r e ,I i ~ 1 ,,I -, .,l I l l t +i t hI P :,' ir, r l li n dx l +ar e
limlible to, ir'll|'l ti, rri'ilf'r-I the |bushes.+ l'1n. remedy\ wa s le-sted
iri Icl i,,rld l\a I ).- I ). 1 v owalll'd an y s .-h %.m,
P'et. Til. 1 i\llre it is pos(, iihble to apply Ithem without ,l:i iiL.,i,
tdf p to i ,o i i .L l i i i. in l n -'ii i _. o r + ,l i li' _L ti lii i ,_ t hn e p ha n t s l ',ir ,in i : t lin -i li .
clit~emi l [uiiii e i-a iill' |iarr|:1i.il ionsi* ii'e 1- 1 ul. 4Of thie's*e l':ii'is~ *L'*Ii-'
tiltc' dry ,,1" i liili, T hlry;I' tv ,I l 1t1d a('d wf ite ;lh 111lrc 11'
good rle 'iie,-. I'arii green is bxwt used i0 a ~'-il\ ii tle proportion
If ain mirii,, ii, .1 r;.llii of w ter. IApplied IdrY. it i- m1ixedl with .i
iirl, (if tho [n r 'i -.i iihlar ,l1 il,.l niiI tIii 1.i (on the [ l:,it v 1- i ,i1ii "'
i) powder l i4illIm I"r i-11:ilt i,,'n, For tie ill l:I .- :r ird'lleiisl(. l wevetr', th1
tpoi.oni i. II'mi, lv',l it thle e rat I I pl)ollid to from 7> to 1i I'.illii-
oft witr. Iiate I liii,. added ill iiblout Ih Inastu lir(lpori(n PiA la i':1,
'i'li to pi \i 1111 'ollliii '. Foi rIpeirly Ill[ l1\ li-, i land apply li ( tIlis
in t'' i'iqh' :1 -IIil| i ',Iy t' ,id quality v 1lio4 ld Il iC eil. S riiilkliii_'
Will n l 'ililr l i 0 1 'r with la w isik broom1 i ll i ollt ai-\\wer tlie pilr-
miml- ilil( I I. i n1i' 'ei\ '., il:i _'l',ii iiF to i)eril' f li.i .'' Tli Ia;I i ;1' il' 1ii
i.-, fi r t ml iixed X illi "i sI all ii I lI.;i l ix" I,1' I, itr: r i ito ii i, ,- I t eI Ic I l',,i,.
the Iiilk of w:illr i- idded ianld -iiil lhe cirnedil in the l)iYrayi'er or
force )iiiiip ii l il ii1 rii.i_,,- ly blended. !' lvl ii. Fl l o- m ilx e. I,,i._I .
.1a il 'hiilie;i il ,i ,e. i- not consitait al nd the ii c Is ii'- l '- iikl t- t the Ioi-
toin. Thie 'IlII io should il, 'i','fI ,'ii be con Ilantli t tired wli ile
I'iiig 1ipp)liW' il iI r ,i-'lerI that 1an even alpipI Alition lma1 V lie tIIl l,. I1
appll vii. ail :l -,.iii,-.il 'praiy an elort hlioih li e .iade to i'reach all i f
tihe lave'-. %liii h Ill;i e a 1 cconplish-d lb -praIiyli,- Z ,in two sides.
Two or three :iitlliliwaiim will -iflwir' for the -I ili-. g eeratlilion of
'roc siw.S. S hi'il,' I.'1',11 i1and oin1 other arllen wial i Icn x1 ued
in-tead of ]:arii. Irivell.
.1 rii,'t ,,q 1/. -f-.A still more valuable i necicide for siiuch inseits
ai- rose -Iu i, d mil l iier leaf fi,-.,i,. is ar-enate if hlead. bt its I-,e I-
openll to lilt' oiljecliit i l:i it di'colors i lie r.if.irc, h 1aii-r ai white
deposil. \lii' i- nii. liowever, per.'nanent It is applied il iricti-
cailtly it e, 11iii'.< lll li ii r as Paris .'l'r''l ;iiil is a h1 1 i,, mi-,ii-, i- lirsi iicZal.
iltid. eiiil -,,ld in paste fi.ii,. is ii-, I at Ia )on iderl)ly -r,..;l'l,.
s reriiFihll -ab-iil i IuoIit l coIbIined with I)I' to I1 Lr:ll .lI- of water Ior
lILrdeiiux iittI lM'. I leiinL. ;idlli-.i v', it :i1llIr,- ItiOIf e Iiriliy to the
leifiage :aind i- iliill less likel\ to l)rOdlce veorloiii,_..
/,,/,.hmri .-- I Irllh 11 i Iv is used it the I'Ite of 1 ounce to from 4 to t3
t ,iiloiowi of i;iil.id kill- I1 contact a- w ell as by its poiionlous eTlI'i-
Aidi llli :ii:iI iT if I ri-ii:ii, n r'L i i in r l I, r, 'r ..ir: tii, n ll] ii o-f ni rsetate nf
It.ld iinil 1i ,ii ilie i i, ii l.ls is -i n, in Fl airners' lilll 'i i; 127. which way 1b
hail mrw i s .i, ;Il i cllii'l ln to i t I'. S. I i*.lnirtmenit ,If .A .rii tli1 ire.
ICIr i n l.I









when eaten by' the insect. It is less poisonous to man than an arsen-
ical, but not so effective to leaf-feeding larva. It may also be applied
dry mixed with about double its weight, or more, of powdered plaster
or cheap flour.
When not in ii.-,e tlhe receptacles containing poisons should be
plainly labeled Poison and placed on a high shelf or in a locker
out of the reach of children. Properly applied, there is no danger,
in usinlg ;in ar-enic:il on ornamental plants, of poisoning human
beings, or donhmeticr animal s other than rabbl)its or similar pets.
Soaps ,n,, of/i!, ,,',.wlr.,.--()ilv soaps, such as fish-oil or whale-oil
soap, and other .,Oap,. and tobacco water will kill these insects, but
their use is ''pen to thle objection that if applied just before or at
b)losomining they are apt to injure the petals of delicate flowers, and
whale-oil and tobacco als-o leave an unpleasant odor. A neutral
soap, such a. cast ile mr tliat used hy physicians and surgeons, leaves
no odor.
Dry/ pi,,wh,.'-Finr. liftedd road dust, where this can be readily
procuredl, is al-o (if valhie thrown upon the plants, preferably by
means of a powder h,.low,. as it closes the breathing pores of the
larva' alnd thiu, kill, them. Finely poowlered line. and buhach (Per-
,ian insect powder, or pyrethrrum) are also effective.
Ha11 1id peh';I.-If roa-e ,l1igs are picked off liv hand upon their
earlies-t appearance thi-, will greatly reduce their numbers for the
following year. In tih- ;adult or tvly stage these insects may be
easily captured hbv hand on od ni mornings. Hand picking may be
tedious, buit it is effective.
Fall titlf,'tinq.-If other means that have been specified have not
been utilized for the suppression of the slugs, numany individuals may
lhe destroyed by frequent cultivation (if the soil between the rose
plants during tlie late summer andl autumin. This has the effect of
breaking up their pupal cells and otherwise (1disturbing the insects so
as to interfere with proper hibernation.

THE BRISTLY ROSE SLUG.
(Cladia, peelcinirfornis Fonurcr.)
Tlie bristly ro-e slug, called also the spiny rose slug. is the principal
enemy of tlhe ro-e in and near the Diktrict of Columbia, not excepting
the rose-chafer. It i. believed to have been brought in from Europe
Naome time prior to I.q33. since it was mentioned by I larris in his
catalogue of Mas,.achu,.etts in-ects of that (late. In the early
-'eventie, it wavv reported from Connecticut and in after years it made
its way westward and southward, doing more or less injury where-
ever esta)bliedw. Since 1880 it has done much mischief in Wash-
V'ir. 1051]






r
?

iiij. iom I). ('. I I'',1, it was reportedL from l M :if;I 1A l,. Ir. I-n
ISS! it I w ... ,l,-A .,-v.,Il if) Ix injurioul i aI t. ('1i1;1 l'--. MN ,. S. ii, aft ,IT-
wardi-, it ma,- ini.'',.,, Il. a l '-i at 1. ]oudis. where it :1illr:ilti.l

OII4''IiTTll,'l) :ll IA Ml) KillIt.
HIl -,, RIITIOH AND 1INl~lT1(HU;TION.

Trh1 th i ul ,,l if till- -ime ieV (li-r. d'. i lll'i Ini'-idcraldy from that
(if thfi A tllrii:lll I 'm->' -II. L. als will Ib readily sen 1% lm a (fhi|)ari-so1 If
llt' it -]Ir:n'linl ,)f tIn' tw o forItt-. It is :1 1:1 ,1 li' -n ct -.i1; 1l a |111,11
eir of a ,liler,,il %'Clll-l. Th% wil,12' r\xpaslie is aiil(t onI- half o(f an
lilt'i far il" l'iii' lh : .1 little shuoritr l', i i he malh. I -, !,inli.1 i (olor
is black. 'I'lc miillii ;in are rathl'r -stout and acutely I| mi|I1,',. and in


L|













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f\:. .I Brlil . r.-'l- I Iwl p iu~ : Adultia b. antenna -e male



-, lui a -. .1 .- i ,.i- f tm- pu ; 1 t I nNrg -ilp-v. 1 xio i ./ ii in I -
the iml' fliv 'iir(iIiii joilts tIo t e neare-t the lil!.1. are c.pv litinat
or colnih-I ticutln- I I tii:. :3. 1, which has !L 'i1i ri-e to the p ame
pctZh.. ".-- t.-.
T n'e e2g t fig. 1. *"i is white. Illi iiil l. I.nmiil-l1 stolltst at: the
anteriur -nd. :I niwl' i< imtild at the oppo- ite end. It asr about
.8 mill. i,, I -,i ni .
The I r1:i ,r- -lii,. shown in figuni :I. and Iiniir I'. '1. varies
from yllowi-li im ullie.l roi, ir'ii. t and the whole .ur.faee is quite
britly. ep ll li ll at Ihe -iIc-. a character fr.I whitlI tlis larva de-
rives its ,'i innin iniiVin and which will ldi-ti'in ll,-l it trflI llir' other
two that feed up)oI the rowe. The Iet irtli when full L'r',wII is a little
ICir. 107.>









more than three-fifth-, f a;inII inch and (lie diameter is between one-
tenth and two-tenthW of an inch.
'The iip;I (ig. :. r ) i', grayi-h green, tlie thorax and end of the
body are slightly yeilowi-li. and the anteiini. wiving-sheaths, and legs
arc while with i slight greeni-ih tinge."
'i'li distrilmlion inwlude-, thie States of M-hi-achu-.etts, Connecticut,
New York, Newv ,IvLr,. lNiinuylviiia. MilrYlland. the District of
Columbia, Iiidi:,lii, Illinoiso, 1nd Mi-,souri.
It i, genieraiIlly 'i -trilmted on he cntinet iiit of Europe and occurs
also iii IEiiIgltnIl a1;1 l ScotlntIiil.




















FIG 4 Irn ill ri.I,-..,- I, i l l'd I,, /'t< F ,11,," i r,. 1:._.; : I portion of leaf showing
eCLa- in :r .i n and \t-.rk tf ,-iirr lir. : ., il. l.ir.-r.al I lnd dursal a.p'elts of middle seg-
ri. ni of n,.'-wly h:iltid I.i-;i ; C. l.a I.il i I.I ; I. tiv> I'.i.f irhnwint nature of defoliation.
All ext r'rt f v'nhirz. ld. i Re 'nL'r.ra ild ;iaft'tr [i .I I

L.I I'T: Oi lS'rt Y.

The bristly rose slug differ-; considerably from the preceding in its
lift e(*(-olo 111V. It- ;iil|lrii:ire at W'a.ihinrtoni, D). C.. and at St. Louis,
Mo., lihas b0ci, olberved from the hitter daYs of April to the third
week of May I, beginning altbout the time that the first rose leaves are
put forth. It, crgg_ are in-ertid iII the upper surface of the petiole
of tIhe leaf ai i are depo-,ited in ro-ws of three or more together.
The siig in its einrliet stage -kelptonizes the leaves, leaving whitish
blotc-hes ;ind iinmll hiole,-, ( fig. 4. f). but with increased growth it eats
l:irge. irl'elillir iole,' in lilt Iraf (fig. 4, bI. devouring the entire sub-
a NI l' i li.i.ilil (l< srilriionis If the stIag's ;are furnished in C. V. Riley's
artirle., Its-.t [,ife. ViI. ', pjp. 6-11. which includes accounts of the other two
speciv.r here treated.
ICIr 10i1i









i -tlli'ard. illl tr l'l'j tl'll].\" It.iIv ll. I i' lii--i l ii. I II 11[ -I l, l'--'l ll'-" \\ i1, .

(, tli:l.. I 1" 1' t Il i,,'-.1 I' I I ** ,i' li I I I .. I, 1 1, I,, I' .1 F..


-1l iiir' 1 I I 'rri l i ll Iur ll rn| r -t mil d ll.. :.17 1 i 1 ;il41 [I ll
,s i, It l l' i l., l Ul J, :III;lIII I, l, l I,.L l l ,ll 1 ,1 t l I ,,' l i l l '1 ill -', t nl .l,,lr, ] rll ill

A "Il tilt 11 1) 1 I I'l I l' 11 t"1 1 1 I ,'I i- I ' '" i l' I i I 1 II' l I lI Il'i
,u I ll' i i i Il it' i i' 'ii :i-i l,,' II I, t .,- lilt II-r
I )1' f c ,)I lI i In, I i, I .ll l\ l 1l'. I I. I I, l, i .l i ii r- I I I











T eI-I a l r% Jh ;It1 1 ai'~ 1 ~ 11 111 1- -,111 1. al 1 1 Ii ii I I I IIII I I 1 0 lila (II uli
lvn ii l iii' hu (il l --| l' i~iuici*li1. .i j I 1 ili.i i11 1 1lxo II- 1 ;1 i i1 r,1f
I IIn -I o Iia .v ;I. r,' I I ,' I IIIr l,'uI\ I I Ii 1 \ II, l r i-. r . I li 1,I -I
Io n r tni Ii l IIIll iiI- 1 l i 11 I l I,-, I I ,,I *I i, i 1' t i. I I i ii I ',,, -
,' I'' ll e t l ln : I ir ., 'l"I -;l l r I I lI l [ I X i ,l i ni "- |Ii II' -i .' I r .s
ill ltt i rsm :i l) I il r In 1 1, l ,,. 11 l, 1 1 M1 au 1 I lu 1. .l l h L I ... 1' i l. i. 1l- I
l -1 I t, ll Illll' I M I lII1I1lII l, l'I a- I 875 ., i I I'- I l ,I I.-, I kll '1



M a v ['lr 11 1 1 J-1 ?.%ij 1 11 1 1 1 1 1 .1 -1 1 I i 1 1 ]4 - 1 l 11-
r'iltoi- .h iil,,,it lIlir li.i-,' ,,| l' lirn',-,' t.,t-!i'-.
"l h fI .o f ', |, I" 'I 111 :1 q p r' l ., ,,l r it I'. ,,, I1.,. I., -I I II -i ..>)I',\,, 1 1
i t I I )i- t 1 (.',dli ] lii:i n I.i-t ,, I'i't'll -I ,\ I, I. n ;I 1 < ., ,.-.1.i ,,I
t Ilt' I`;ni l I .ir \ '-'lll t' ,I n11 ,_," IlL i I;11 111,] -I. r,, ..... I ,'1 ,fM I \ .IT.
]l ild b ro od I .I, ,ll' ; W, lI it . I I r, I ..11 I I ,, i n,' I, 1 1, III I I
1 r.'(. I'll ll 1,:! l ,,r ,I I II -,I' ,.I\ I ., Illl ,1 .I\ -. -I I 1 111:. -,', (111,]
IT ro il a f" lir- It ,',\ ;i | ,|,'-tir ,,r l', r, i1,, 1 I.L \ Il lIi .. I ,,I,,t '.. ,itI,
1 t4 ion Ir"'iii- lierk ;,Il ,,i I 1, ,. ',,1 '\ J1 I \ , 1 -1 1 1 1 .1, 1 ,11 1 1 I,., ill n 11,- ..1 1]
1l9 an' 2 .1 :I ll l 'll'll '--:111,,1|. i ,l ,1,1 1 I ,l 1 It' Il ,, l .-. "it,,I .||,,|
0]it',l Ir ', ,l-arv a',,,, n' -. ',',} r i n','- li _'"r',, M,1 ,- .2 -1h ., .l. i l i ,
u[r. ( i. I'Inll -. S t. 1. 1 ,,, 1- .l.ll I. 1 -u. '11 \ I '. I.I.. I.,. I -,L' I1 n ,l ,_".4', \ I
it( o -,l 'l i ,, I- ,'i, I x I, L I I I i ,l-, ,l n l l lI - | I ,I I I I "-t. I I I [1 '1'1 t .
To ,.' -!> tl\ ,',1ii ,ii ',l ]- I,,,- io ..I ,.. I_'- I 11" 1n 'l I c -. ( I .%nlr"
14 lIe Iili ,. l l.' r\ .r in, ., j.,t : i n1 ,1 I,, ,,,.,I I"-1'" L)' I' l r 1 7.
Il ii l "'-'I n il i-- -,nr .'xl~ ', M I ,r l :',\ i i,, A |-I | ,,1 f l l fH] V.. xn I I In .
Noin li",.t ]iiiii.'lt O) tI,,r n9 I .,in, i--I e| -% lI "_'_'. l.w.,-In iv I n-.1,rL
l tillAlt \ -r,' 1" il l ll l,, ] 1>l] [ -tl ~I ,l "1 Ii- -], .'. 1 *I l v i, 1 1n. l,. \ u i;|-
t in n in t in 1ine rs ,1 i~--n itl'. n ,,iir ,,,, -.. ,.1 ,I 1 ,1 ,1 n l [ |. l ~l Ir, ,,~ I,, i,,i ] i ,.r:,t,.,]
tO ;i r'frl' iiin ,'\ [n'1 11' tlt,' ,,],i'i. .\ ii, il _"', I,,. ,o ,.,.n ,.il ll,. -,nm tl\
Va rO-Jtinm ,., .I : ..l.,,, :li Ir,, 1,. %...




111--t-il,"N~~ibl\ CkTV 1i :1 I\ I i i ha I. III
N o nii tnr~i1 4rn,.'n i,- of illn ~ i- r . -Ivl" .;ipl,,,.iin I,, Tt:\'-' l ,',u ',,,,rr _0 -
n izt.r ]il i .\i, n 'n ir ,i In in, I'nt',lo ,i it l- |ir,'v,.,l iilo,, I l\ t\\o },;iri,.-nte..:
.I ,/-. 1 r f fi1 > li 1/- ,', /,, 11. l*n, (ir i\. .;' iu ] .I/' .... ., ...1*i ,,n. /.;, l] !i i /.

'! s'l'l'n riiiis ]':iil,,l,,|- r Li :i l rh,,' l]:t \, r -Tivr I ,itr ,,11i lh ,- -I,+., i,.-. i 'n>, ,,f th lir ,,.is .
; i,.1'fs"s.il,]l. *;'it'tr' :i l :rl'ti, h'- i.s iliiil I,',' M.I ?. l .S ii.r l ,lr 111 \ ,,lhlr il,,,x,.t. l r:in-.
latnti from llt, IhiT,'li vI" J. \V. .MI..v UUd JILIbliLhS 'd, III The., Ujt wJul'iqi i, \'Vl.
VIII, 187:5. PP. 2i1'-2'.
[Cir. Id.-,]









IEM EDI IN.

The samne irenilie-s advis-ed aguain-,t the American rose slug are em-
I)loye.d agaillit tli, pic-lnt -,pecies. with the exception of fall cultiva-
tiom, \liicli i, practically uselet's wvlhel applied to it, owing to the
fit tliItt tiII' ''1iicii.b are ftorliedl ii in thlie plants on thle surface of
til' gi'Ioundi ;1il uIIil buried in the earth as with tlie preceding species.
SiLT.e tIiI'rI aiV liire thian ,ie' geliel'riation o(f this .-lug, sprinklingg
with water and -,pr.ying wit i pois-on- nru,,t be repeated -several times
ill order to prolilce thle dt.'-iri'1 reutilts: in short, as often as the
insects; .'a pir ipon tlle 1)1 aiint,, from April to October, according to
loculity.
THE COILED ROSE SLUG.
< :mhii ltn I.** l inr'ti. I,..")

Tihe third of thle ron-c J.ng iiunder vciiiideration, the coiled rose
slrig, i.4 ci lii-MlIritivel\v Ircenlit importatioi. As within tlie two pre-
cedirig .,Jecie-, it fi-,t ;attracted attelition near Boton, Mass., but
1,it until tiht' e.ar l."s.1' It i,' |i.b bitljle, however, as inl the case of
most li'Eropiall init-,.t ilntrin't-t-d into this country, that its importa-
tion w;as aicoi< fromn analhygv, tliii, in-e<'rt inight have been brought from the mother
country on N iotttdl 'to--' te'n lpecilied, .s. tliat length 44f tiie i, -olnetinies necessary for a foreign
ill trct to Il-cii'tlit' I|t ritainlI tly .'-tabli-ltetl -o as to attract attention
by it- injuries.
I)ES( IiPI'TLON AND) DISTRIBUTION.

Front thle two Iirc-eding s.-pecie.-, thli in.ect may be readily sepa-
rated (n iin 1 atIllt of it-. l]rgi-r -ize ia the adult ,,tag'e (ig. 5. a). It has
Iearl t lan-lpa ltrlvt wiiiiL-r-, and a ivile band which cros-es its shining
black aubhMliaiiti Ilear tl t' inidhlhl. Thi. boidY i- conMparlatively slender.
and thle lIead llonger than, i ll tie other Itw .-ipecie-. TIiI wing expanse
ih ;.lxu0t Iivu-i.'i'lilli- if a;n ilIcli atnd tI, hIngtl of the botly about three-
eighthls of an inch.
'I'rla lr\.ii wl'tii nailiii'e i.' about thlree-fourths of all in'h long and
diftier-n, iot:ilil" fr-tv i li-. ithvr two -peie- itere c*onm-idered in being
Iert'fetl" .niootli. It i- ri'lindrical and tapers very .slightly toward
Iltie po-t'ri'rr xtrt.rinlitv. Ti-0 color i.s metallic green above, orna-
it cntetl w'itli -In:Ill vwliit. dot ., anid tie lower surface, including the
lh>'.s, is grayis.-l whlite. TIe Ilead ('fi -. ) is yellowish orange, with
at dark bIrowi 1i, h-Ilark -tripe doviwn thle miiddle. The eves are black.
'I 1i. l; 1fi l ii i li., N.' rt. is 1'1,',11 iiz l is a sv iiyln tIn.
b.1. (;. J.:acl. 4;;'l.]r :ii nil Id oresi. M Iar. 2';. 18.14). ipi. 151-152.
I l 1".' l7 1








T hie first Ihoriw h'i I,,.n ,,nn i- I I- ,1 ..,,, l ,. ..1n l ,, .1Ill-r 1'.1v.' "l'l%.
ar li ViL h ll1ili nllv -1-1 1 I t l .ili. I , i ., ,1r1 -- 1l l ,i- ltn,11 .Fltiil, il Inll
Ii uiit ti, /i, tin tliit i- li \ r .;i -i .,-iiin ,i| ,.il .i lI if,, i tl,,. 'l t "i tl .s,
and it iN fron this lli, Iit l,.:il il I.'l IM, ,- '..']-I 11.1111,,,'
IIl a hdd lion Ili l,-t,', l !:1- i~ ,.,r ,,l I l,, l W iIl% 1\ ,. l,,, il f,' ,m
JTanma ic'a i'l mir ItRoxliilr\ . l N,. ,. l. I'm'i .1. I.,--.: Iiin-tiii -; (f
MN nin(; .lI]',ilivny, I'a. : N,'% i i. nl ( iim',iJ.m I llil I ;i-tEi'u
Ilh n ii.p h,, L, t li .,- l,,[,'ri,- r'il i-,, .. .. ir ,,' i,,., | ,r" l,,| i ,,, ,,I"i l.t' L ,,pc,,
extentIlng into Sih'l'i.i.
N ATIi \i. lii-l i
'Ih e coiled 'ro), -Ilin i- rr' diti' l % nli lI .imI .Iiilil. li h.,IlmI. ;iin l : ,-.
it t.xirnds its r' nl'', ..-" ll l r, l It %% Ill pI ',l i.,lil l 11,,, 1,-, .1 1h1 n',1 -_1.'
eralLiuu, SIICt Wt kin>\\l,' I" 0li4 :Il)l'.Ill'',. ,,l ll .* "" \









____, ) ~- .^ 7
-. . ..






a
-.- ,.[ .








Fim l .- o I'. ri'. lil. I I 1 Ii t e .i"' .1 I ., '.l I0 ' i I
head -if sam- %% "rl. m ].it i i I . ,' I 1 i I. ii. I,
rnl ri rtih : f .e1. Y r. n rl ir 1. 1 i i I n' lr:t'. l i r r 1: ,i .
to iO october. Vz.Lr- r r a im--i il -III' U llu I I i] ii1l'i-iil.. in ltime
leavt's t i tluh ,lI-,r eI niiiiiili'1r 1,t l tlr,.r I,, --I-.ii. "l i., -liu1"
lif rl's frouni lnt' f l, r' in Olttoizri 1,. Iir ,illie -onli-Ilni,, l1' l ;i I'.
feedillng a oiI lil tl- tI -m % ill, it, l)liml m m', il'I I,,.i,. lii l .111,i1 % l-i.re :11
r'rst rtnmininiir viirltl Illi a ill 11 ln l e1 1 i,', -i'rfir'. (-.v liv. 5 )
IjTpon rteachi lt mnti i 'itvr Y lli -1l1., dl -irI- fllI h.,'- :rI ,l l.ii. -' inii,,
the piith of the, -'tvins of de.ad r'o-ie i,.l,- b ,i r llr" ;f l ;nl, lhililr phluls.
and here the pIlm l -t.atv i- [I; -cl. tli t'.ill Lr'.l,,'r:i t l Flmnl 'rii.,i t1,: ie
emiergep thi following MaY. .At lBo-,cn,. M'--. lOi' .clIt.. I:n, :1il--i
been observed in July, thin iM ]ihcint lt i m. tl- linr-t iit'" 'imrfl'itil,(I .
OA lworep Ielhni il ude.criiticnmi ly i >r. IT. i;. lyvar is si,.iu il lhII (_i n.am illiin
Entomologist. Vol. XXVI, p11. Ibo.
[Cir. 105]




UNIVERSITY OF FLORIDA
II11 I iM ll III H Ill li1 il tIIl Il jIIH Ill
12 3 1262 09218 5298

NATURAL ENEMIES.
A parasitic enemy of this species vis reiar-ed by the writer from
larve received from Allegheny, Pa.. in 1904. -It issued October 20,
and proved to be a tachina fly, Tachdi,, rusdi'a Fall.
In Enrope an ichnieumnon fly, ('ry/,it, cipi/ytorum Bole., is para-
sitic upon this sawtly.
REMEDI ES.
TI. rvreiiediv., are the same as for the American rose slug, subject,
however, to the same clh;iinge- as for the bristly rose slug.
Approved:
JAMES WILSON,
Secret,,'.,I/ of A gricuiltture.
WASHINGTON, D1). C., i/I,,.,f, 41I '.
ICir. 105]