169 



Aniennce (PI. VI., B, fig. 7) eleven -jointed ; 1 very large, pyriform, strongly recurved, 

 with a large fiat space with a longitudinal row of punctures in its middle on the 

 upper surface ; 2 rather small, nearly oval ; 3-6 minute, equal in size ; 7 large, 

 much incrassated on the inner side, equal in length to the preceding four ; 8 

 small ; 9-11 large, much incrassated, forming a foliate club, of which the 

 apical joint is longest and ovate. 



Maxillari/ palpi (PI. YL, B, fig. 5, w) very large, four-jointed ; 1 small, subtriangular ; 

 2 very large, incurved, much incrassated, subpyriform ; 3 very short, trans- 

 verse ; 4 subconical, truncate at the apex, more slender and rather longer than 

 the third, furnished with short sets. 



Labial palpi (PI. VI., B, fig. 6, m) rather large, three-jointed ; 1 very minute ; 2 

 very large, oval, produced considerably below the basal joint ; 3 small, much 

 dilated, and abruptly truncate at the apex, and fringed with short setfe on the 

 upper margin. 



Lahrum (PI. VI., B, fig. 3) elongate, triangular, furnished with remote setse. 



Mandibles (PL VI., B, tig. 4) long and slender, sublinear, bifid at the apex, and 

 armed at each extremity with a sharp claw. Stipes, long, robust, retlexed. 



MaxiUm (PI. VI., B, fig. 5) rather large, unilobed, the lobe broad, cultriform, acute 

 at the apex, and acutely and remotely serrate on the upper part of its interior 

 edge. Stipes small. 



Mcnttim (PI. VI., B, fig. 6, j) rather small, subquadrate, with the anterior margin 

 deeply sinuate. 



Labium iPl. VI., B, fig. 6, k) short, dilated, and rounded on each side at the base, 

 anterior margin emarginate at the middle. 



Lingua (PI. VI., B, fig. 6, 1) rather small, semiovate, translucid, and elegantly 

 undulated. 



Pronotum rather large, with the anterior margin entire on the upper surface, but 

 witli the anterior anrjles abruptly inflected beneath and closely fitted to the sides of 

 tlw head ; basal margin sinuated, with the angles acute and faintly produced. 



Srutelluni moderate, subtriangular. 



Elytra entire, large, and very broad, epipleural folds very broad. 



Wings ample, pellucid, with the usual neuratiou pale in colour. 



Abdomen composed of nine segments, of which the two apical are large and corneous, 

 and the remainder membranaceous ; 1-7 short, equal in length ; 8 much longer ; 

 9 much longer than 8, rather attenuated towards the apex, deeply punctured, 

 with the interstices alutaceous ; 1-8 furnished with large, rounded, inflexed 

 lateral jjrocesses. 



Prothorax (PI. VI., B, tig. 2, a) with the 2J>''^>sier)ium small, verj' short, carinated : 

 episterna minute, inconspicuous ; epimera large, much produced on the inner 

 side, entirely enclosing the hinder part of the coxal cavities ; coxal cavities 

 large and long, divided bj^ the carina, open and slightly excised in front, 

 enclosed posteriorly by the epimera. 



Pectus with the mesosternum (PI. VI., B, fig. 2, d) very short and cai'inated ; episterna 

 large : epimera humeral, long, and narrow, not extending to the coxal cavities ; 

 coxal cavities rather distant, large and rounded. 

 metasternum (PL VI., B, fig. 2, g) large, transverse, not extending to the sides of 

 the body, posterior margin slightly concave between the cox^e ; episterna large 

 and broad, as long as the metasternum ; epimera long and narrow, concealed 

 by the epipleural folds. 



]'entcr composed of six segments; 1 large and long; 2-4 short, equal to each other 

 in length ; 5 large, twice as long as the preceding; 6 longer than the fifth, 

 slightly attenuated toward the apex. 



Legs anterior with the trochanters small, trigonal ; femora rather long, simple ; 

 tibiie moderate, rather dilated before the middle ; tarsi very short, robust, four- 

 jointed, simple ; 1 longer than the second ; 3 minute ; 4 longer and more 

 slender ; claws strong, dentate at the base beneath. 



