348 CLAVIGOKNIA — FSELAPIIIDAE. 



h. Thorax smooth ; body black, with elytra dark red. 



Antennae and legs pitch-black. Elytra miich dilated 

 behind, with a straiglit siitural and a curved, slightly ab- 

 breviated dorsal stria ; abdominal segments tolerably equal 

 in lengtli. L. -f 1. Moderately common. 



B. imprcssu, Panz. 



Pselaphus. 



A, Thorax mucli longer than broad, base not impressed. 



Eust-red. Male with anterior femora somewhat thick- 

 ened and abdomen flat. L. 1 1. Eather common. 



P. Hcisci, Herbst, 

 J5. Tliorax about as long as broad, with a curved trans- 

 verse impression at base. 



Chestnut-brown. Male with anterior femora somewhat 

 thickened and abdomen flat. L. 1 1. Very rare. 



P. dresdensis, Herbst. 



TycJius, 



Black ; antennae and legs red-brown. Male with fifth 

 joint of antennae very large. L. f 1. Common. 



T. niger, Payk. 



Bythimis, 



A. Elytra distinctly punctured. 



U» Male with first joint of antennae dilated on inner- 

 side, second joint cylindrical. 



jT. Thorax distinctly punctured. 



Eeddish-brown ; antennae lighter ; elytra pitchy. Male 

 with femora somewliat thickened ; anterior tibiae with a 

 little tooth on inner-side. L. f 1. Connnon. 



B. pitncticollis, Den. 

 jTjT. Thorax not punctured. 



Pitch-black ; antennae and legs yellow-1 irown. Male 

 with first joint of antennae very tliick, narrowed at base, 

 inner margin prominent in middle and with a slight tooth 

 at apex, anterior tibiae with a little tooth on inner-side. 

 L. I — I 1. Common. B. hulhifer, Eeich. 



b. Male with first joint of antennae cylindrical, second 

 joint dilated on inner-side. 



