200 BEACHELYTRA — ALEOCHARIDAE. 



fusely punctured, straight behind ; length of 

 body A line. 



Black ; base of antennae and tibiae yellow ; femora 

 pitchy. Eather common. H. immersa, Er. 



b b. Head broad, distinctly and closely punc- 

 tured, narrowed behind the prominent eyes ; 

 length of body 1^ lines. 



A a. Thorax coarsely and closely punctured. 



Shiny. Pitch-black; base of antennae, elytra (except 

 apical angles), and legs yellow. Thorax more than half as 

 broad again as long, sides much rounded, considerably nar- 

 rowed behind, with a broad distinct impression on disc. 

 Very rare. IT. crihriceps, Sharp. 



JB b. Thorax indistinctly but closely punc- 

 tured. 



Dull. Black ; elytra brown ; antennae and femora 

 pitchy, tibiae yellow. Thorax about one-fourth broader 

 than long, a little narrowed in front and rather more so 

 behind, with an indistinct central furrow. Common. 



H. plana, Gyll. 



jC? JB. Apex of seventh abdominal segment armed 

 with a long spine in the middle and with a 

 smaller spine on each side. 



Narrow, parallel-sided. Pitchy, legs yellow, tarsi short. 

 L. f 1. Common. H. cusp id at a, Er. 



b. Thorax slightly transverse, it sides evenly rounded. 



I. Six penultimate joints of antennae not, or only 

 slightly transverse. 



1, Sixth abdominal segment diftusely punctured 

 or smooth. 



Thorax about half as broad again as long, 



A A, Length exceeding 1 line. 



a a. Elytra about as broad and as long as 

 thorax ; antennae dull red-yellow. 



Somewhat flat and parallel-sided. Pitch-black ; elytra 

 rather paler ; legs dirty yellow. Antennae moderately 

 long, scarcely thickened toward apex ; thorax with an ini- 

 pression before middle of base and a more or less distinct 



