RHYPAROCHROMID^E. 217 



Abdomen above and beneath delicately punctured; base on the 

 upper side red. 



Length, 1 — 1^ line. 



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

 the year. 



Genus 16. — Acompus, Fied. 

 Elliptic. 



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

 triangular ; sides concave ; anteruiiferous j^i'ocesses very short. 

 Antennae 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 behiud. Ocelli small, 

 distant. Rostrimi reaching almost across the mesosternum ; base 

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

 in front. 



Tlwrax. — Froiiotum trapezoidal, rather convex, flatter behind, 

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

 Qf 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 sKghtly curved, tliick, 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. Stermun ; JHesostermwi 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 



* Eieber says 5. 



