'IMIK I.KAK I'.KKTI KS. 1--51 



Throuiihont the St;itc ; coinuioii. Kchfuni-y S-Deconiber 22. Hi- 

 bernates ])('ii(>:i1h imillein leaves and nilthish. Occurs on sweet ])0- 

 tatoes and wild incinliei's of tlie ("onvolvidus rainilv. often doiiiu' 

 much in.iur.N to tlic I'oniicr. 'IMic \v:\\rs onl> of >(>iiii>4 phiiils sliould 

 be dipped in a stroni; solution of arsenate of lead. 



r. Ihnnicicd 111.. leii<ith 7 nun., is known from Illinois. 

 *22S0 (TKX)). Cassu).v iwi.i.idiia r.eli.. Mmi. (';iss.. IT. 1S.".S, ir.T. 



()l>lniiir-nv;Ue. sides neniiy iinniliel. I'liiriinii dull .mH-en or ^^-eenisli- 

 yellew: anteiin;e willi last three Jeinls pieeeiis. 'I'lioiMx Iwiei' as wide as 

 loiii:. the aii,i,des all bmadly rounded; iiiai-Kiu very broad. Hat and translu- 

 eeiit. Elytra with hiiuieraj aiitilos iironiineiit. iiiari;ins broadly llattened, 

 imnctures very coarse .-uid close-set; intervals narrow. Length 5-5.5 mm. 



Vigo and Pei-ry comities ; scarce. February 11-December 29. 

 Riley records it as attacking egg-plant, the; horse-nettle and other 

 species of Solaiiacea'.^'^ 



LXXIX. Coi-focvcL.v Chev. 18:U. (Gr., "ctit + circle.") 



The nieinbers of tliis genus are known from thos(^ of Cassida by 

 their longer antenna' and more depressed form, witli bi-oader and 

 more flattened margins of thorax and elytra. 



KEY TO INDIANA SPECIKS OF COPTOCYCLA. 



«. Elytra without blacli spots or dark marldngs. 



h. Elytra wholly golden yellow (dull reddish-yellow after death), not 

 alutaceous. 2281. bicolor. 



hh. Elytra brownish-red, very finely granulate or alutaceous. 



2282. PURPURATA. 



(lit. Elytra with l)lack spots or marks, sometimes wholly black, except the 

 margins. 

 c. Disk of elytra with numerous tubercles or elevations, the margins 

 pale at middle and apex. 2283. clavata, 



cc. Disk of elytra without distinct tubercles, the margins pale from near 

 humeral angles to apex. 

 (1. Dark discal space of elytra liroken by numerous yellow or pale 

 gpots. 2284. signifera. 



(/(/. Dark discal siiace without s]iots. bla<'k, shining. 2285. plicata. 



22.S1 (7102). CoPTocvciA iucolor Fabi-.. Syst. EkMit., T, ISOl. .".UU. 



P.roadly oval. subdepr(>ssed. Above brilliant Itrassy or ^^^C- 



greenish-golden in life; dull reddish-yellow after death; un- 

 der surfai'e and last four joints of antenna' black. Margins j- 

 of thorax and elytra broadly expanded, very thin and trans- | 

 lucent. lOlyira each with a small, rounded, deiiressed si)aee 

 (in disk. ;i large dblung one (often iiUerrupted at middle) 

 near margin, and with abnul leu rows of small, feebly im- Fig. ,W1. 



pressed punctures. Length r..5-(; nun. ( I''ig. 551.) 



*Amcr. Nat. XVI, 1S<S2, 679. 

 [78—234021 



