RHYPAROCHROMIDJE. 217 



Abdomen above and beneath delicately punctured; base on the 

 upper side red. 



Length, 1 \\ line. 



Common at the roots of plants, especially on heaths, throughout 

 the year. 



Genus 16. ACOMPUS, Fieb. 



Elliptic. 



Head short, broader than long, convex ; Face vertical, very short, 

 triangular ; sides concave ; antenniferous processes very short. 

 Antenna slender ; 1st joint stoutest, short, about \ its length reach- 

 ing beyond the end of the face ; 2nd and 3rd of equal thickness, 

 each a very little thicker at the apex ; 2nd twice the length of the 

 1st ; 3rd shorter than the 2nd ; 4th thicker than the 3rd, as long as 

 the 2nd, fusiform. Eyes large, prominent behind. Ocelli small, 

 distant. Rostrum reaching almost across the mesosternum ; base 

 in a short, deep channel, of which the sides are raised and prominent 

 in front. 



Thorax. Pronotum trapezoidal, rather convex, flatter behind, 

 contracted in front to the width of the base of the head exclusive 

 of the eyes ; anterior margin nearly straight, anterior angles greatly 

 deflected ; sides slightly sinuate, being a little constricted in the 

 middle ; hinder angles prominent, rounded ; posterior margin rather 

 concave. Scutellum triangular ; the base deflected towards the 

 centre, which is depressed transversely. Elytra ; Clavus deflected 

 to the Corium ; Corium ; base flat ; posteriorly convex ; anterior 

 margin slightly curved, thick, reflexed to beyond the middle ; 

 central nerve strong, raised for -frds of its length. Membrane; 

 base depressed ; of the 4* nerves the 1st 2 are slightly curved out- 

 wards to the posterior margin ; the 3rd and 4th arise near together 

 at the inner basal angle, then diverging gradually and sinuate to 

 the posterior margin ; the first 3 are stronger than the 4th. Often 

 the membrane is only rudimentary. Sternum ; Mesosternum flat, 

 with a short keel in front ; xyphus short ; Metasternum convex, 

 with a central keel, hindwardly pointed. Legs : thighs ; 1st pair 

 stoutest, fusiform, unarmed ; 2nd and 3rd pairs gradually thicker 

 from the base, but contracted at the apex ; tarsi ; 1st joint on the 



* Fieber says 5. 



