BY ARTHUR M. LEA. 285 



Pteroheloius, but has rudimentary wings and elytra soldered 

 together. The wings are gauzy, the veins connecting them with 

 the metanotum are strong but short and abruptly terminated, the 

 wings elsewhere without venation; near the termination of the 

 veins they suddenly contract in width, thence parallel almost to 

 apex, which is truncate. Length 6, width near base 2, width in 

 middle f, longest vein \^ mm. 



I have examined Helceus echinatus, Sarag us rud is and Sympete-'^ 

 undulatus, and find that in all three the metanotum is degraded, 

 soldered to the elytra; and there are but the veriest rudiments of 

 wings. Compared with the metanotum of P. buUatus or of P. 

 convexiuscuhis, that of the present species differs in being much 

 more transverse; the apex of a groove in a line with the scutellum 

 marking the apex of a triangular extension, whilst in the two 

 species named the metanotum is parallel; at the base in Darioini 

 the angles of the scutellar groove are strongly roiunded off, and 

 — with another elevation — enclose a transverse pointed areolet; 

 in bullatus and convexiuscuhis the angles are right angles and 

 enclose a feeble slightly convex depression, the outer edge of 

 which is not ridged; the groove in Darwini has a strong flattened 

 ridge extending its whole length, in bullatus there is a faint trace 

 of ridging, and none in convexiusculus. 



Pteroheleus Broadhursti, n.sp. 



Convex, shining, glabrous. Reddish-brown, margins paler; 

 under surface of head and mandibles piceous. "Head densely and 

 rather minutely punctate; pi'Othoi'ax with very minute punctures; 

 each elytron with about seventeen rows of small punctures, and a 

 short sutural row; sterna minutely punctate; abdomen very 

 minutely punctate, and feel^ly longitudinally strigose. 



Clypeus convex, its Suture with epicranium distinct, both with 

 reflexed sides; a shallow and moderately distinct impression 

 between eyes; antennae reaching intermediate coxse, 3rd joint 

 scarcely as long as 4th-5th combined. Prothorax widely trans- 

 verse, with very feeble trace of median line, base sinuate, margins 



