TROGOniLOEUS. ol5 



Black ; antennae dark red-brown, first joint reddish, 

 next ones also more or less reddish ; palpi red, third joint 

 generally blackish ; legs red, femora generally brownish in 

 middle. Thorax with two longitudinal impressions in 

 middle and a feebler depression on each side. L. 11 1. 

 Common. T. Erichsoni, Sharp. 



2? B, Elytra not much longer than thorax. 



Narrower than T. Erichsoni. Black ; antennae blackish or 

 dark red-brown, with red base ; legs brownish-red, femora 

 generally darker in middle. Thorax dull, with two shallow, 

 slightly curved longitudinal impressions, effaced in front. 

 L. 1 1. Common. T. elongatulus, Er. 



2, Head much narrower than thorax. 



Black; antennae, palpi and legs reddish. Thorax with 

 two very feeble longitudinal impressions (almost effaced) 

 and a slight prominence between them at base. L. 1 — 1^ 1. 

 Not uncommon. T. fulifjinosus, Gr, 



J), Length under 1 line. 



I, Legs more or less blackish or pitch-brown. 



1, Elytra very closely and finely punctured. 



A A. Thorax with two slightly curved narrow 

 longitudinal impressions. 



Black ; first joint of antennae usually pitch-brown ; 

 trochanters, knees and apex of tibiae brown, tarsi reddish- 

 yellow. L. f 1. Common. T. corticinus, Gr. 



1> -B. Thorax without impressions. 



Black ; first joint of antennae pitch-brown ; legs pitch- 

 brown, knees and tarsi yellow-brown. L. f 1. Not un- 

 common. T. halophilus, Kies. 



2, Elytra closely and rather strongly punctured. 



Black ; base of antennae pitch-brown ; legs blackish, 

 knees, apex of tibiae and tarsi yellow-brown. Thorax with 

 four rather distinct depressions on disc. L. f 1. Eare. 



T. foveolatus, Salil. 



II, Legs yellow. 



1. Antennae brownish with yellow base. 



A A. Thorax not much broader than long, nar- 

 rowed behind ; elytra yellow-brown. 



