412 GNATS OR MOSQUITOES — CHAPTER XIII 



J . — Head wanting in the single type. Scutellum chestnut ; pleurae 

 chestnut with some white scales. Legs dark brown, but paler at their 

 bases. Wings with bases of fork cells nearly even, and 4 twice its 

 length inside 3. Ill prolonged inwards as an unsealed extension. 

 Halteres pale with fuscous knobs. Length. — 6*5 mm. 



Habitat. — Amboina. 



37. CULEX RUBRITHORAX, Macquart (" D. E." p. 9). 



Tarsal joints with white rings, especially distinct on the hind 

 legs ; thorax brick-red, unadorned, but armed with four double 

 rows of brown bristles. Abdomen black, with narrow basal white 

 bands, except on the last two segments, and triangular lateral 

 spots. Proboscis tawny, black at base and tip (sometimes all 

 black). 



2 . — Head black, with narrow, pale yellow orbits, behind which is a 

 broad band of flat black scales, cream^'-white on the nape and at the sides ; 

 palpi black. Pleurne marbled chestnut and white. Legs dusky j-ellow, 

 with minute paler knee-spots, the tibiai nearly black. Tarsal claws 

 equal ; those of fore and mid legs, with an extra tooth. Venter white, 

 with a few dark scales on the hinder borders of the segments. Halteres 

 yellow, with dusky knobs. Length. — 5 mm. 



Habitat. — Queensland ; Tasmania. 



38. CULEX MARINUS, Theobald (Monog. I, p. 396). 



Tarsi black, with rather narrow basal white bands on the 

 upper three joints of the fore and middle, and on all the hind 

 tarsal joints. Thorax black-grounded, with fawn and brown 

 scales of the usual linear form. Abdomen covered with nearly 

 black scales, dull purplish in some lights ; the first four segments 

 with a broad basal band of creamy-yellow, to almost white, scales, 

 the two following with creamy-white lateral spots, and the last 

 two with creamy-yellow apical borders ; laterally are white central 

 spots on most of the segments, which show above, towards the 

 apex ; first segment with two patches of dark scales and a few 

 scattered flat light ones, and numerous golden hairs. Proboscis 

 dark, often with a tendency to a yellow band in the middle. 

 Larger fore claw of ? , with two extra teeth. A few white 

 scales intermixed with the darker ones along the costa. 



Head black, with scattered curved white, and black forked scales ; 

 palpi nearly black, with white apex in $ ; those of ^ , with the last 

 joint pointed, but the next two dilated, strongly tufted narrow pale 

 basal bands to the last two joints, and a small spot near the base. 

 Pleura; dark brown, with white patches. Legs bronzy-black, with white 



