CURCULIONIDES. 261 



The anal segment is more nearly horizontal than any species I 

 have seen. 



6. B. obsoletus. — Blackish, varied with cinereous hair. 

 Inhabits Indiana. 



Body blackish cinereous, with a slight tinge of brown : anten- 

 nae not deeply serrate : thorax much narrowed before, [ 3 ] cin- 

 ereous each side, a slight impressed dorsal line; base wit li the 

 edge almost angulated, central lobe almost truncate ; scutel quad- 

 rate, whitish, longitudinally divided by a dusky line; elytra with 

 the interstitial lines having a slight appearance of alternating 

 whitish and dusky; on the middle of the third interstitial line is 

 a more obvious abbreviated whitish line : posterior thighs with a 

 black spine, and two smaller ones. 



Length over one-tenth of an inch. 



The whitish or cinereous markings are not very striking ; on 

 the elytra they may sometimes be traced into two obsolete macu- 

 lar bands. I obtained many specimens from the seeds of an 

 Astragulus in August, in company with. Ap ion segnipes nob. 



7. B. musculus. — Blackish with cinereous hair; antennae and 

 feet rufous. 



Inhabits Indiana. 



Body blackish-cinereous, with a slight tinge of brown, or black 

 with cinereous hair : labrum piceous : antennae rufous at base 

 and tip, piceous in the middle: thorax rather long, narrowed be- 

 fore, somewhat cinereous each side, and on a dorsal line ; basal 

 edge lobed at the scutel : scutel quadrate cinereous, with a dusky 

 line; elytra, third interstitial line with an abbreviated cinereous 

 line on its middle; feet rufous; anterior thighs at base, interme- 

 diate pair to the middle, black ; posterior thighs with a spine, 

 and three close set smaller ones distant from it, and with their 

 tibiae black. 



Length less than one-tenth of an inch. 



Resembles obsoletus nob., but is a little smaller, and the ru- 

 fous antennas and feet distinguish it. 



8. B. transversus. — Black, with cinereous hair; interstitial 

 spaces with transverse black lines. 



Inhabits Indiana. 



Body black, more or less covered with cinereous hair; 



