BERYTINA. 145 



Not rare. "Weybridge on JJlex nanus, September ; Isle of "Wiglit, 

 July, (6r. Lewis); Plumstead Common, among heath, August and 

 September; Eolkestone, on Ononis, September; Scarborough {T. 

 Wilkinson). 



Section ^.—BJEBYTINA.'' 

 Family 1.— METACANTHID/E. 



Genus 1. — Metacanthus, Costa. 



Head short, broad ; Crown globose, with a single deep impression 

 at the base ; Face vertical, small, triangular. Antennce very long, 

 filiform ; 1st joint longest, slightly incrassated at the top ; 2nd about 

 half the length of the 1st ; 3rd as long as the 2nd; -Ith nearly half 

 the length of the 3rd, thickened, fusiform. Fi/es large, globose, 

 prominent. Ocelli large, distant, inserted at the sides of the head 

 just before the pronotum. Bostrum reaching to the end of the 

 metasternum, 2ud joint longest ; rostral channel deepest and widest 

 at the extremity. 



Thorax very thick; Pronotum much deflected forwards, long 

 trapezoidal ; anterior margin thick, prominent, sloping from the 

 centre to the ends, which terminate in a rounded, projecting nodule; 

 disk in front smooth, with a small central nodule, behind which is a 

 deep transverse impression, the remainder of the disk very convex, 

 with a fine raised line up the centre ending at the top in a large 

 sharp nodule, and with a similar but smaller and more obtuse nodule 

 at each hinder angle ; hinder angles rounded ; posterior margin sub- 

 angularly concave, narrowly reflexed. ScufeUntn triangular, narrow, 

 pointed, the base with a long projecting suberect, back-curving 

 spine. Elytra horizontal, longer and broader than the abdomen, 

 covering the connexivum ; Corium diaphanous, narrow, the posterior 

 margin on each elytron not meeting each other at the end of the 

 clavus, but divergent, and carried forward for some distance in an 

 outwardly curving line, then sinuate and extended long, straight, and 

 slender to a point ; Memhrane hroad, oval, transparent, with 5 nearly 

 straight nerves. Sternum witli the rostral channel deep and wide, 

 ending on the metasternum ; the odoriferous orifice on the oneso- 

 sternum produced as a short, upturned spine. Legs very long; 



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