'I' I IK 1,1:. \K I'.l'.K'l'KKS. 1141 



XXIV. ('iii;vs()('iii s Chcv. 1S;U. {(h\, "iiT.ldsiiuth.") 



'Phis ji.'iius is r('i)r(-s("iit(Ml in llic (Mst(>i'ii riiilcd States hy a 

 siii<il(' larj^c j>()lisli('(l ^i-cen species wliidi iivis upon the I'olia.Lit' of 

 n:ilkwiH>(l ( Asi-h pins) . 



LMin (ti74r). ("ninsoc 111 s aikaiis 1';iIi.. lOnl. Syst., 17T.">. int. 



Oliloiiir. cdiivex. (Jrceii. Iirilliniit ly pniislied : elylrn (il'teii willi .-i enii- 



pei-y or ln-iissy liiiixc; nnleiiii:i'. le.i,'s nnd iiiHler sini.-ice liluisli lilnd^. I lend 

 ' Mild Ihdi'ax with coarse, \-ery sparse. dcH'p piim-liires iiilerniiii;,ded willi 



iiiimile niics, lllylra lii:el.\ and ii-remdarly piiiirlale. I.eiiictli s II niiii. 

 I TiirouLilKiut the Statt ; eonniion. .Jinie 11 Anti'ust Id. ()eein'.-; 



on (ioiilmne or Indian heiu|» ( A jh/ciiini nn as well as milkweed. 



XXV. TvMN'Ks Chap. 1S74. 



Ih^ie belono' thwe inedinni-sized ohloni; forms, two of which have 

 heiMi taken in Indiana, while the otIuM-. riolmu as, perhaps occurs, 

 havinii" lieen desci'ilieil from IN iins;\l\ania. The key is that of Dr. 

 Horn. 



KKY TO SPFXMKS OF TYAINKS. 



(/. Sides (pf iiietastermnu ((Miiiiarativel.v siuootli. 



//. ('nl<ir \arialde, irreeii, hroii/.e or cupreniis: el.slra coarsely punctate 



even to the aiiex ; apical aiit^U' acute, very sli.iilitly prolonged in the 



male. 2111. tricolor. 



bh Color deep 1)lue witli violaceous retlectious ; elytra not coarsely aud 



r.-ither s|iarseiy imnctate. at ajie.x (piite suinotli : .apical aiiu'le not 



.acute. vioi..\('Krs. 



(/(/. Sides (if uietasteruuui densely .in<l conrsely punctured; color piceous. 



slijrhtly bronzed; elytra moderately (onrsely imnctured even to the 



apex; sutur.al an.i^le well detined. not acute. 12112. metasternai.is. 



' LMIl {<;744). TY^tM•.s TRicoi.oK F.ili.. Eiit. Syst.. I. ITT.".. :'Ai\. 



(Hiliiuir. convex, suhiiarallei. I'.ronzed (ir greenish, shinin;:;; l>rown lie- 

 ne.atli; .anteiuue and ie,L,'s pale reddisli-lirown. 'I'lmrax rather clctsely aud 

 linel.\' imncturi'd on sides. nearl,\' sin<ioth on middle and toward base. Ely- 

 tra irre.i,'idai'I.v .and rather co.-irsely imnctiile. Male with last ventral sej;- 

 ment broadly em.aririnate and with a tr.insxcrse depression. Lenirth (t- 

 7..") nun. 



Throuiihont \\\v Stati^: frei|ncnt. dune l-Jidy 21. Taken 1)\- 

 liea^iuu ha/rl, cak, wild L;rape and ironwced. 



T. I iolfii'( IIS Ilrtrn, was described from Allegheny. INnnsylvania. 



211'J (t;71.'i. 'rvM.NKs MiriAsi KiiXAi.is Cnitcli.. I'riic. I'hil. .\cad. .\at. Sci.. 

 1S7:;. :!s. 

 Fiirm and colnr ot the iireccdinir. but slmrter .and less shinin;:. Head 

 and thipfax lunre cldscly .and e\'enl.\' punctured. ];i.\tr;i S(une\\hat more 

 sp.arsely punctured .-lud with traces of costa'. I.eni::Ih ."> e, nun. 



