'nil': i'f,i:\si\(; itxci'S JiKK'i'iiKS. 



54:5 



l(i;;i C'.lKitM). LwciuiA run ASciATA Say. .Iniirii. I'liil. Acad. Nat. Sci., 

 III. 182:!. 4(;2; ibid. I. Sf.. 

 Elonj,'ato; tlio elytra tapcrini,' l<> an (ihlusc i^diiit. lU'ad. liasal and 

 apical thirds of elytra Itluish-Itlack ; thorax, a broad median l»;ind of elytra 

 and joints two to six inclusive of antenn:c, reddish-.yellu\v ; beneath as in 

 iiiniiistdtd. I.en.ijth G -7.5 mm. 



Tlirouiihout Iho State; frequent. .Mardi 1(i .May •_'!». rsiially 

 i-cuardcil as n vai'iety of aiifnislahi. but in my opinion si)ecilic;illy 

 .listinct. Occui-s especially on Ww foliajj-e of the wild lettuce, Lac- 

 luca caitadotsis L.. 1)tit often foviiKJ on flowers of buttercup (/ir/- 

 iiiinculus). 

 Ki:!.") Cil'OTk Lancukia t.kcon tki ('rotch. Trans. Amer. Knt. Soc. IV, 187:!. 



:!r>i. 



Kloni^ate. i)arallel. Nearly muform t,'reenish-hlaek : lli irax reddish-yt'l- 

 l(t\v with a larsie crreenish-hlaek spot on eent*'r of disk. Head and thorax 

 sparsely hut distinctly luinctate. Klylral i.unctnres in lows, with a f(>w 

 liner ones on intervals, r.en.^th 10.") nun. 



Vi^o County; rare. Marcli VJ. 1 )e.scribe(i f roni Illinois. 



10:iG (3209). I.ANGiHiA (aiA( II is Newni.. Knt. Ma.c. V. 18:',8. 

 390. 

 Resembles Iccontci. but more narrow. Head, at Icasl 

 in part, red: greeuish-black mark on thorax extended into a 

 stripe reaching from base to apex. Varies with the thorax 

 entirely grcnish-black. Length 8.7-10 mm. (Fig. 203.) 



Southern half of State ; frecpient. May 21-October 

 28. Occurs on ragweed ( Ambrosia), fleabane {Eri- 

 geron) and other low herbs from which it is taken by j.^^ . 

 sweeping. 



Tribe IT. EIJOTVr.l .XT. 



To this tribe, as defined in the key. belon.u' the following genera 

 t'roiii Indiana : 



KEY TO IXUIANA GENER.V OF EROTYT.IXI. 



0. Tarsi distinctly 5-.iointed. (Group Daciies.) 



J). Tarsi narrow, not dilated: size small, not over 3.5 mm. 



c. Form oval, the sides curved; elytra nn i colored ; antenn;e with 10th 

 and 11th joints united. TI. rr.(KosoM.\. 



cc. I'orui ohl.mg. Ihc sides urarly paralirl ; elytr.-i liirol.u'ed ; antenn:e 

 dislin.-tly 1 l-Joiuled. H '• I'A'-Ni:. 



till. Tarsi dilal(Ml. s| g\ hencatli: si/.e l.irger. 5 20 nun. 



IV. Mkcakhiacnk. 

 (/((. Tarsi aiiiiareiiliy i-Joiiitod, tiie rMurtii Joint very small, united wilii llie 

 fifth. 

 |:;5— 23402] 



_ ig. 203. ■. 2i 

 (After Wickham.) 



