rni': SIIOUT-\VIN<;I<:I) SCA VKNMIKU I'.ICMTI/KS. 410 



separated from those of bicolor by the lack of fovea on second ven- 

 tral. The males have the thorax and elytra darker reddish-brown, 

 and the latter much more coarsely punctate. 



C. pimerifiinini Lee., 8.5-10.5 mm. in length, is recorded by Casey 

 from Indiana. I have not seen a specimen from the State. Its 

 usual range is Texas to California. 



XLIV. HESPEROBTUM Casey. 1905. (Or., "western + life.") 



This genus was created by Casey to include those species hitherto 

 ascribed to Cryptolthtni which have the first and second ventrals of 

 male without a trace of pit or fovea and the last ventral distinctly 

 notched at apex. I include with them serpentinum LeConte, as the 

 characters separating it are not sufficient to erect a new genus. 



KEY TO INDIANA SPECIES OF HESPEKOBIUM. 



a. Elytra black or pieeous ; bind angles of head distinct. 



I). Head distinctly broader than thorax, its sides curved behind the 

 eyes ; form robust. 804. PALLIPES. 



bl). Head scarcely wider than thorax, its sides straight for some distance 

 behind the eyes ; form more slender. 805. CINCTUM. 



mi. Elytra wholly or in great part reddish-yellow ; head obliquely nar- 

 rowed from the eyes to the neck, its hind angles wholly wanting. 

 c. Head wholly smooth or with very few punctures. 

 d. Piceous ; elytra pale reddish-brown, coarsely and deeply punctate. 



806. CEIBATUM. 



'/(/. Reddish-yellow ; front of head, thorax, two basal and two apical 

 segments of abdomen black. SERPENTINUM. 



cc. Head distinctly punctured on basal half; color black; elytra reddish- 

 yellow with a sutural black stripe, broader at apex and reaching 

 to apical third. 807. SEIXATUM. 



*804 (2502). HESPEROBIUM PALUIPES Grav., Mon. Col. Micr., 1800, 179. 



Piceous or nearly black, shining; antennae dusky; legs dull yellow. 

 Head oval, slightly longer than wide, coarsely and rather sparsely punc- 

 tured. Thorax slightly narrower than head, one-fifth longer than wide, 

 sides feebly curved ; disk with a well defined smooth median area, its sides 

 coarsely, regularly and rather sparsely punctate. Elytra one-third wider 

 and a little longer than thorax, rather finely, closely and roughly punctate. 

 Abdomen as wide as elytra, finely and very densely punctate; last ventral 

 of male with a triangular notch, much deeper than wide. Length 8-11 mm. 



Throughout the State; frequent. February 8-October 17. Oc- 

 curs especially beneath cover on sandy banks of streams, ponds, etc. 



805 (2502a). HESPEROBIUM CINCTUM Say, Trans. Amer. Phil. Soc., IV, 1834, 

 454 ; ibid. II, 569. 



Elongate, slender. Black or piceous, feebly shining; antennae dusky, 

 paler at tip ; palpi and legs reddish-yellow. Head oblong-oval, much nar- 



