OLIGOTA. 223 



1 . Abdomen parallel-sided. 



Black, shiny ; apex of abdomen brownish ; antennae 

 and legs red-brown. L. ^- 1. llather common. 



0. pusillima, Gr. 



2, Abdomen slightly narrowed toward apex. 



Larger and broader than 0. pusillim a, ihorox more trans- 

 verse, elytra longer and broader ; antennae and legs yellow- 

 red, club of former Ijroader than in 0. atomaria. Common. 



0. ruficornis, Sharp. 



Sofiiatiuni. 



A. Elytra black ; abdomen tolerably strongly narrowed 

 toward apex. 



a. Antennae rust-brown, lighter at base, with the last 

 four joints forming a club. 



Black; legs rust-brown. L. -|- 1. Kare. 



>S^. granarium; Er. 



6. Antennae yellow, with the last three joints forming 

 a club, tlie eighth joint being scarcely larger than the 

 preceding ones. 



Black ; legs rust-brown. L. ^ 1. Not uncommon. 



S. flavicome, Lac. 



S, Elytra yellow-red ; abdomen slightly narrowed toward 

 apex. 



Head, thorax, and base of al)domen pitch -1 )rowai ; apex 

 of latter, legs and base of antennae yellow-red. L. | 1. 

 Not common. S. apicatum, Er. 



G in OPHAEWIDES. 



A, Elytra scarcely longer than thorax. 



Ligula entire, semi-circular. Thorax almost three times 

 as broad as long; peniUtimate joints of antennae very 

 strongly transverse. Encephalus, Westw. 



S, Elytra somewhat longer than thorax. 



a. Ligula entire, rounded. 



Thorax about twice as broad as long ; elytra aliout half 

 as long again as thorax. Gyrophaena, Mann. 



h. Ligula split. 



