'IlK Oil, ANO III IS'l'lOK' liKK'I'KKS. 



1857 



-51S ( ). /o.MTis St 1,( iroi.i IS sp. II :i\. 



Kl(iii.i,'Ml('-(ililoii.ir. AiiIt'un.T, tHci|Mil, lilii.i'. l.irsi :iii(l iiicsu .ind iiicl:i- 

 stci'iin hrnwii ; lli(ir;i\. fruiil (if licnd. rciihi|-;i. in-nslcrmiiii ;iii(l nlnloiiicii \cl- 

 low : ('lylr;i as iiiciit imicd in kry. llcid i-ciai-scly and ratliri' c-lnscly i>nnr- 

 talc, tlic middle df ncfi|Mil sni inilici-. 'i'lmrav sli.ulill\ wider liian Inn.u ; 

 sides and all tlio an^^les stmniily nuinded ; disk uneven, sparsi-ly and cDarse- 

 iy punetate and with a deejt median im|»ressed line. Klytra seal)r(>ns or 

 ruixose witlmnt distinct imnetnres. Alxlnmen linely and densely pniictate. 

 the apex of Hfth ventral broadly and deeply concave. Lenirtli s nnn. 



Lake Comity; rare, -lulv 21I. 'I'akcn from blossoms of the yel- 

 low flowered thistle, ('ulcus iii/clnri 'Vow. Very distinct from 

 hilincaia in color, dilTereiice in sculpture of elytra and in liavinj^ 

 thoracic impressed line. 



Z. h))Uliroi-)iis Horn, liead iie:irl\- lilac]<. thorax dai-ker a1 middle, 

 Iciis and anteiiiKe pale, leiiuth IM mm,, was descrihed iVom ('ciilral 

 Illinois. 



Trilie 111. STIWUIXI. 



To this tribe helono-s a sinii-le North American species, floniia 

 7ninufip( )i)n-'^ Riley, wliich is i)arasitic upon a ^■ronnddK'e (A)illio- 

 pora sp.), which huilds its nests in perpendicular clay hanks. The 

 abdomen of the beetle is very lar^-e, as in MrJrx .• elytra very small 

 and wings wanting. The head is triangidar, thorax elongate, tarsal 

 claws cleft ; male with a double row of horny 

 plates on abdomen. It was described from 

 near St. Louis, doubtless occurs wherever its 

 host lives, and should be looked for in early 

 spring. 



Tribe IV. CAXTIIAKIXI. 



Elongate, rather slender, subcylindrical 

 beetles, having the front marked with a dis- 

 tinct transverse suture prolonged beyond the 

 insertion of the antenna-; tarsal claws cleft to 

 liase, the upper part not serrate, the two parts 



Fi"" 580) Four of Fig- 589. ConMans Hu((««i . "-'ay. 

 '^' . X 1*. (After Forbes.) 



the twelve genera are represented in the col- 



in oiu' genera subequal. 



the twelve genera are 



lections, while members of two othei's perhaps occur 



KEY TO I.NDIA.NA OK.NKHA OK CAXTH A HI .N I . 



(I. Second joint of antenna' at least oiiedialf as hmis: as tliinl. 



\ . 

 (/(/. Second Joint of antenna' nnicli less than half the len.-tli of 

 h. Next to last joint of tarsi biloiied. 

 lih. Next to last joint cylindrical. 



.MAciiiaiASis. 

 third. 

 Tkikaonvx. 



