218 BRACHELYTRA — ALEOCHARIDAE. 



b. Thorax distinctly narrowed in front. 

 I, Entire abdomen closely punctnred. 



1, Elytra yellow, with triangular black patch round 

 scutellum. 



A A, Length If lines. 



Black; elytra clear yellow, with black markings; an- 

 tennae pitchy, rather long and stout, slightly thickened 

 toward apex; legs yellow. Thorax fully half as broad 

 again as long. Punctuation close and fine. Intermediate 

 tibiae with one bristle ; posterior tibiae without bristles. 

 Common. //. melanaria, Salil. 



B B. Length U^—lh lines. 



Black ; elytra livid yellow, with black markings ; legs 

 pitchy-yellow. Antennae moderately long and stout, but 

 little thickened toward apex, penultimate joints a little 

 shorter than broad. Thorax nearly half as broad again as 

 long. Punctuation close and distinct. Hinder pairs of 

 tibiae each with one bristle. Not uncommon. 



H. tcstudinea, Er. 



2, Elytra dark brown or black. 



A A. Penultimate joints of antennae about as 

 long as broad. 



a a. Thorax nearly twice as broad as long ; 

 first joint of posterior tarsi not much longer 

 than second. 



Black ; legs pitchy-yellow. Punctuation close and fine. 

 Hinder pairs of tibiae each with one bristle. L. 1^ 1. 

 Common. H. aterrima, Gr. 



(t h. Thorax about one-third broader than long ; 

 first joint of posterior tarsi as long as next 

 two joints together. 



Black-brown ; elytra dark brown ; base of antennae and 

 legs yellowish. Punctuation like that of an Oxypoda. L. 

 11. Katlier common. H. pyfjmaca, Qv. 



B B. Penultimate joints of antennae somewhat 

 transverse. 



a a. Thorax one-third broader than long, 

 without central furrow. 

 Black; elytra dark brown or blackish; legs yellowish 



