RHYPAROCHROMID^E. 179 



the base of the Corium with 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 Membrane the 3rd nerve is white on the basal 3rd. Of the thighs. 



J * 



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

 piceous, red-brown on the basal ; the 3rd pair of tibia shorter 

 and stouter. 



Genus 5. DIEUCHES, A. Dohrn. 



(Stett. Ent. Zeit. xxi, 159, 1860.) 

 Long, narrow, elliptic, the sides nearly parallel. 



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

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

 length reaching beyond the end of the face ; 2nd, 3rd and 4th, in 

 length subequal ; 2nd 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. 

 Rostrum reaching to the 2nd pair of coxae. 



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 slightly concave ; disk, the 1st convex, the last \ flat, with a 

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

 Scutelluin long, triangular, slightly convex. Elytra; Clavus 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 short 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. 



