342 



subimpressed on either side, with the epistoma a little protuberant 

 and a deep sulcus between the antennae, entirely stramineous, with 

 the colour rising triangularly a little above the scrobes ; clypeus 

 very prominent, tuberculiform, subcircular, stramineous, basally 

 strongly discrete and apically black ; mandibles weak, narrow 

 and apically acuminate, stramineous, with the apical teeth, of 

 which the lower is much the longer, small and ferruginous. 

 Antennae much longer than the body, slender, setaceous and finely 

 pilose, with the apical joints well discrete, piceous, with the 

 basal three or four joints rufescent, at least beneath. Tliorax- 

 slender and subcylindrical, black, with the prothorax basally 



Fig. 97. Megastyhts longicoxis, Cam. 



throughout, a mesopleural mark before the radices broadly, andi 

 its basal carina narrowly, stramineous ; mesonotum glabrous and 

 nitidulous, apically elongate and constricted at the obsolete notauli ; 

 metathorax irregularly shagreened, very small dorso-ventrally, 

 though hardly narrower discally than the mesonotum ; metanotum 

 but slightly convex and not depressed apically, lateral earinae 

 distinct and connected by two transverse carinae, across the disc 

 and before the petiolar area ; spiracles circular and not small. 

 Scutellum glabrous, triangular, subconvex and laterally carinate to 

 its apex, which is, like that of the postscutellum, ferruginous. 

 Abdomen linear and subnitidulous, becoming duller, pilose and 

 broader before its apex ; black, with the base of the first- two, 

 apex of second, whole of third segments, and the anus, indeter- 

 minately rufescent ; basal segment parallel-sided, about five times 

 as long as broad, glabrous and laterally sparsely pilose, with the 

 apex subnodulose and the spiracles distinctly before the centre ;. 



