282 THE INSECTS OF GAYNDAH, 



largely emarginate in front, with large flat margins, a little raised 

 and thickened on the border towards the anterior angles, and 

 with the posterior subacutely pointed backwards. Scutellum 

 transversely and curvilinearly triangular and transverselj'' im- 

 pressed in the middle. Elytra not longer than the width, as 

 broad as the thorax at the base, and rounded at the apex, with a 

 bi'oad smooth margin — broadest at the humeral angle and 

 becoming narrower to the apex — raised on the border, and with 

 the disk mai-ked with eight subcostate elevations, the second 

 from the suture the largest, the lateral ones resembling con- 

 tinuous rows of nodules, and the intervals rather obliterately 

 punctate in double rows. Abdomen subnitid, and marked with 

 longitudinal striolse. Antennas, palpi, and tarsi, piceous. 



577. — Pterohel^us elongatus. n. sp. 

 Length 10 lines, width 4| lines. 

 Oblong-oval, black, subopaque. Head transverse, punctate, 

 widened in front of the eyes, rounded at the anterior angles, and 

 almost truncate in front, with a narrow recurved margin. 

 Thorax with a broad lateral margin a little reflexed at 

 the anterior angles, and with the posterior angles less pointed back- 

 wards than in the last described species. Scutellum triangular. 

 Elytra nearly twice as long as the width, narrowly and equally 

 margined, and marked with eight costiform elevations alternating 

 with smaller ones, some of which are scarcely traceable, with the 

 intervals strongly punctate. Under surface nitid, substriolate. 

 Antenna, palpi, and tarsi, piceous. 



578. — Pterohel^us Pascoei. n. sp. 

 Length 9 lines ; width 6 lines. 



Bi'oadly ovate, black, opaque. Head scarcely enlarged before 

 the eyes, broadly rounded in front, finely canaliculate between the 

 eyes, and with a semi-circular line or suture extending across, and 

 to the front of, the head befoi'e the eyes. Thorax with a broad 

 flat mai'gin, and a lightly marked median line. Scutellum curvi- 

 linearly triangular. Elytra broadly margined, — the margin of a 



