IT'O LYGiEINA. 



centre tbau at the sides. The hinder portion not so convex as the 

 front ; rapidly widening posteriorly, with a slight curve to the hinder 

 angles, which are prominent, but rounded ; posterior margin rather 

 longer than the breadth of the base of the elytra, slightly concave. 

 Sciitellum large, triangular ; the base deflected, centre depressed ; 

 hinder portion with a central ridge. Elytra ; Glavus slightly de- 

 flected to the Corium ; Corium flat, slightly deflected outwards ; 

 anterior margin narrowly reflexed, nearly straight ; posterior margin 

 straight ; MemTjrane with 4 nerves arising at the base ; the 1st 

 strongly curved outwards, and ending on the anterior margin ; the 

 2nd less curved ; the 3rd at first strongly curved inwards and 

 raised, then straight ; the 4th at first curved, parallel to the 3rd, 

 but beyond the middle divergent and sinuate ; all the last 3 extend 

 to the posterior margin. Sternum : Mesosterman ; xyphus very 

 short. Legs: tliirjlis ; 1st pair very thick; beneath, be_yond the 

 middle, with two short spines, another nearer the apex, and some 

 other much smaller ones adjacent ; 2nd and 3rd pairs not so strong 

 as the 1st, and not thickened in the middle, the apex slightly con- 

 stricted ; tihicB a little thickened at the apex ; tarsi very long ; 1st 

 joint longer than the 2nd and 3rd, the 2nd very short. 



Abdomen oval, above flat, beneath rather convex ; Connexivum 

 moderate, much reflexed. 



Species 1. — Plociomerus fracticollis. 



Pachymekus FKACTicoLLis, /Jc////^. Beitr. i, S2, 27, t. 7, fig. 6 (1S29) ; 



Hahn, Wanz. i, OG, t. 10, fig. 40 (1S31) ; 

 H. Schf. Nom. Eut. i, 44 (1S35). 

 Plociomerus -- Sahib. Geoc. Feu. 70, 1 (1S45). 



Pachi'merus insectus, BoJiem. Vet. Akad. Haudl. 250 (1S49). 



— (Plociomerus) eracticollis, Flor, Rhjn. Liv. i, 229, 2 



(1860). 

 Plociomerus fracticollis, Fieb. Earop. Hem. 172, 3 (1S61). 

 Plociomera — Sial, Vet. Akad. Porh. 214, 2 (1862). 



Black, finely haired. 



Read black, finely punctured. Antennce ; 1st and 4th joints 

 piceous; 2nd and 3rd reddish-brown; apex piceous. Eyes black. 

 Ocelli reddish. Rostrum piceous. 



