RIIYPAROCHROMIDtE. 170 



the base of the Coriiim witli a large subtriangular spot, a small round 

 one beyond the middle, close to the anterior margin, and the apex, 

 ochreous ; with these exceptions, the ground colour extends to the 

 anterior margin, and is often darker there above the round spot ; on 

 the Memhmne the 3rd nerve is white on the basal 3rd. Of the tliiglis, 

 the 1st pair only are black or piceous-black ; the 2nd and 3rd pairs 

 piceous, red-brown on the basal \ ; the 3rd pair of tibice ' shorter 

 and stouter. 



Genus 5. — Dieuches, A. Dohrn. 



(Stett. Ent. Zeit. xxi, 159, ISGO.) 

 Long, narrow, elliptic, the sides nearly parallel. 



Head 5-sided, convex : Face; central lobe broad in front ; side lobes 

 short, compressed. Antennce long, thin ; 1st joint cylindrical, \ its 

 length reaching beyond the end of the face; 2nd, 3rd and -Ith, in 

 length subequal ; 2ud and 3rd scarcely thickened at the apex ; 4th 

 cylindrical, tapered at the ends. Eyes large, semiglobose, projecting 

 beyond the anterior angles of the pronotum. Ocelli moderate, distant. 

 Sosfrum reaching to the 2nd pair of coxa>. 



Thorax. — Pronotum long, trapeziform ; anterior margin straight, 

 shorter than, the width of the head across the eyes, the angles obtuse ; 

 side margins nearly straight, much reflexed, widened internally 

 beyond the middle ; hinder angles square, obtuse ; posterior margin 

 very sliglitly concave ; disk, the 1st \ convex, the last |- flat, with a 

 slight central keel, and raised into a callus within the hinder angles. 

 Scutellum long, triangular, slightly convex. Elytra; Claims very 

 slightly deflected outwards ; Corium slightly convex, anterior margin 

 reflexed ; Membrane with 5 nerves ; the 1st 3 curved, the 1st 2 

 ending on the anterior margin, and the 3rd at the apex ; the 4th and 

 5th arising at the inner basal angle, curved outwardly and inwardly, 

 and then gradually to the posterior margin. Sternum; Mesosternum 

 in front with a sliort sharp keel ; hindwardly with a furrow ending 

 in the xyphus ; Metasternum square-rhomboidal, hindwardly raised, 

 with a slight, sharp, central keel. Legs long, slender; thighs, 1st 

 pair fusiform, flattened, not much incrassated; beneath, a slight 

 channel with small teeth on both edges ; tarsi ; 1st joint long, on the 

 3rd pair nearly 3 times as long as the 2nd and 3rd together. 



Abdomen. — 2nd segment, beneath, with a slight nodiform process 

 in the middle, pointing towards the base. 



