TIIl'l TKA AND lil'.AN W in'.Vl I S. 



1237 



/>. <]isii)i(l< tis S;iy, 1(I1l:11i '■'< 1.') iinii.. is i-ccoi-dcd \'y()\\\ Ohio. 

 I\;ins;is and ( 'nlorjido. 



(iROl 1' A. 



KEY TO SPK(Ii:S or (JliOl I' A. 



(I. Hind rcinur wilh :i innili <<\\ \»<\\\ wwwv ■.\\h\ uultT iiiar^iiis : lli;it oii 

 iiiiuT side lari^cr. 

 h. .Mediiiu bilSiil llmnicif U>\>o wilh cicNnlcd ivofy-lii<c s|t:iic. ( l''!;;. 



555.) CIIINK.NSIS. 



III). .Median basal lolic wilh wliilisli hairs oul.v. (, Ki.ii. ">'>7.) 



(Jl AUKI.MA( IT A ri S. 



(/(/. Iliiid ft'UHir witli one tooth only on inner margin. 

 r. Klytra black with rod sjxits on tlie spacos. 



d. Suture depressed: elytra each wilh a red spot on middle which 

 touches the side margins. --'•">. luvi i.m.kah s. 



(Id. Disk of elytra Hat. the suture not deprt>ssed : elytra mor(> black 

 than rufous, the red spot near nnt(T' apical margin. 



(TiUK.NTATl S. 



cc. Elytra wholly black. Iiind lemora an<l tibi;e l)icolored. m;;kim s. 



B. c]ii}Kiif;is Tjinii., atitcriiia' of male strongly 

 pectinate, len^i'th :5-4 mm., is known as the "eow- 

 [)ea weevil/' as it lives in seeds of cow-peas, beans, 

 etc. B. qnadriinaciihiiux Fah., longer, less robnst, 

 with broader thorax, black with gray and white 

 pubescence, length 3-4.5 nun., is known as the 

 " fonr-spotted bean weevil." and also lives mainly 

 in cow-peas. Both are widely distribnted, have 

 been introduced in seeds and are likely to occnr 

 any place in Indiana. 



Fig. 567. Bruchus qudc- 

 r imaculat us F-ih. I-oiale 

 (■ After ChittPiiden ) 



1.'290 (7128). Brttchus bivulnekatus Horn, Trans. Amer. Ent. Soc. IV, 

 1873, 325. 

 Oval, robust. Black, feebly shining; elytra each with a large red spot 

 at middle which reaches the margin but not the suture. Head elongate- 

 aval, densely punctured. Antennae as long as head and thorax, the three 

 basal joints reddish. Thorax shining, one-half broader at base than long, 

 sides feebly curved and gradually narrowed to apex, base lobed at middle, 

 surface densely and rather coarsely i)unctured. Elytra as broad as long. 

 deeply striate; intervals flat, densely and laigosely punctate. Length :'.- 

 3,5 mm. 



Southern two-thirds of State; fi-e(iuent. May IjV-Octolier 14. 

 Occurs on flowers of niilkw(!ed and white snakeroot (Kupatorium). 

 The larva^ are said to breed in tlie s(>eds of wild senna {Cassia inari- 

 hnidica L.). 



