122 THE INSECTS OF GAYNDAH, 



159. — Hydroporus gigas, Bohem. Bes. Eugen. 1858, 

 page 18. 



160. — Hydroporus foveiceps. n. sp. 

 Length 3 lines. 

 Ovate, flat, very finely punctured, and of a testaceous red 

 colour. Head vs^itli a small round fovea on each side between 

 and in front of the eyes. Thorax broad, short, narrowly margined 

 on the sides, and broader behind than in front, with the anterior 

 angles advanced, the posterior angles square, the base very slightly 

 sinuated and the apical and basal margin tinged with brown. 

 Elytra of the same width as the thorax at the base, gradually 

 widening to the middle and rather narrowly rounded at the apex, 

 with two obsolete striae on each, one close to the suture, the other 

 nearer the middle. In colour the elytra are much paler than the 

 rest of the insect and of a more lurid hue, with the suture and 

 two very large patches nearly covering the apical two thirds, of a 

 dark brown. The legs and under side of the body are red. The 

 last joint of the four anterior tarsi is long and slight. 



161. — Hydroporus brunnipennis. n. sp. 

 Length 2| lines. 

 Of the same form and sculpture as the last described species. 

 The colour is pitchy red, with the thorax margined in front and 

 at the base with brown, and with the elytra of a dark brown with 

 reddish lateral margin. 



162. — Hydroporus fossulipennis. n. sp. 

 Length 2 lines. 

 Ovate, convex, very finely and closely punctured, and of a 

 testaceous red colour. Head margined in front, and with a large 

 shallow depression on each side. Thorax bi'oad, short, margined 

 at the sides, and broader behind than in front, with the anterior 

 angles advanced, the posterior angles sub-acute, and the base 

 brown, slightly bisinuated on each side of the centre, and marked 

 with short rough " striolaB." Elytra broadly ovate, with the 



