184 BEACIIELYTKA — ALEOCIIAKIDAE. 



II, Abdomen closely punctured, at least at base. 



1, Head liglit red-brown. 



Light red-brown; middle of abdomen blackish ; antennae 

 red-brown ; legs yellowish-red. Thorax half as broad 

 again as long, scarcely shorter than elytra ; third joint of 

 antennae not much longer than fourth ; punctuation of 

 head and thorax moderately close, that of elytra less close, 

 that of abdomen tolerably close in front, more diffuse 

 behind. L. 1| 1. Rare. 0. rccondita, Kr. 



2, Head pitch-brown or pitch-black. 



A A, Thorax nearly twice as broad as long, with 

 central furrow and basal depression ; length 

 1^ lines. 



Pitch-brown ; thorax, elytra and base of abdomen dark 

 red-brown, apex of latter and antennae red-brown ; legs 

 reddish-yellow. Thorax somewliat shorter than elytra ; 

 third joint of antennae not much longer than fourth ; 

 abdomen very closely punctured throughout. Common. 



0. formiceticola, Miirk. 



-B S, Thorax half as broad again as long, even ; 



length 1 line. 



a a. Thorax more or less shiny. 



A a. Antennae dark red-brown, distinctly 

 thickened toward apex. 



Elongate. Pitch-black ; elytra pitch-brown ; abdomen 

 with apex and margins of segments yellow-red ; antennae 

 dark red-brown ; legs yellow. Third joint of antennae 

 distinctly shorter than second; abdomen closely punctured, 

 a little more diffusely at apex. Common. 



0. haemorrhoa, Sahl. 



Ji ?>. Antennae light red-brown, strongly 

 thickened toward apex. 



Elongate. Pitch-brown ; elytra brown ; abdomen with 

 apex and margins of segments reddish-yellow ; antennae 

 light red-brown; legs yellow. Structure similar to 0. 

 haemorrhoa, but body less shiny, pubescence closer, abdo- 

 men with silky reliection. Rare. 0. amoena, Fair. 



h h. Thorax dull. 

 Black-brown; thorax, elytra and apex of abdomen brown; 



