IIOMALOTA. 187 



rowed distinctly behind ; elytra a little longer than thorax ; 

 basal segments of abdomen rather closely punctured. L. 

 2 1. Not common. H. in sect a, Th. 



S b. Head with an indistinct depression in 

 front ; thorax with a not very distinct 

 central furrow. 



Linear, rather dull. Head, tliorax, and abdomen pitch- 

 brown, elytra and antennae brown, base of latter and legs 

 yellow. Tliorax slightly narrowed behind ; elytra scarcely 

 longer than thorax ; base of abdomen closely punctured. 

 L. If 1, Not common. R.jHtvens, Er. 



JB J5. Length not exceeding 1^ lines. 



a a. Body fragile. 



A a. Plead narrowed in front; elytra scarcely 

 longer than thorax. 



Flat, shiny. Head, thorax, and abdomen black-l)rown, 

 antennae and elytra brown, legs yellow. Tenth joint of 

 antennae scarcely longer than broad ; thorax a little nar- 

 rowed behind ; base of abdomen rather diffusely punctured. 

 L. 1| 1. Loch Rannoch. R. Eichoffi, Scrib. 



jB h. Head nearly square ; elytra half as 

 long again as thorax. 



Flat, scarcely shiny. Head, thorax, and al^domen black- 

 brown ; antennae and elytra brown ; legs yellow. Tenth 

 joint of antennae longer tlian broad ; thorax scarcely nar- 

 rowed behind ; base of abdomen not very closely punc- 

 tured. L. 11 1. Common. H. cambrica, Woll. 



b b. Body more robust. 



Somewhat flat and shiny. Head, thorax, and abdomen 

 black-brown, antennae and elytra brown, legs yellow. 

 Tenth joint of antennae slightly broader than long ; head 

 narrowed in front ; thorax a little narrowed behind ; elytra 

 a little longer than thorax ; punctuation rather diffuse. L. 

 1^1. Eare. II. planifrons, Wat. 



2. Sixth aljdominal segment of male without a 

 tubercle. 



A A. All abdominal segments distinctly punc- 

 tured. 



