A handbook of the gnats or mosquitoes : giving the anatomy and life history of the Culicidæ, together with descriptions of all species noticed up to the present date / by Geo. M. Giles.

  • George Michael James Giles
Date:
1902
Catalogue details

Licence: Public Domain Mark

Credit: A handbook of the gnats or mosquitoes : giving the anatomy and life history of the Culicidæ, together with descriptions of all species noticed up to the present date / by Geo. M. Giles. Source: Wellcome Collection.

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    scattered ochreous scales. Halteres ochreous. Venter densely pale ochre-scaled in the $ ; with black median patches in the $ . Length.— 5 mm. Habitat.—Australia ; N.S.W. and Queensland. 92. CULEX YIRIDIYENTER, sp. n. (Journ. Bombay Nat. Hist. Soc. xiii, p. 609.) Plate xvii, fig. 12, Tarsal claws of $ ; 12a, Venation of wing of 5 ; 12b, Diagram of abdominal banding contrasted with that of C. fatigans ; 12c, Larva, x 7 diams. Tarsi uniformly dusky. Thorax chocolate-brown with bronzy tomentum. Abdominal segments with yellowish basal bands having a blunt, deltoid, backward median prolongation. Venter almost naked, save for a few colourless scales, green in fresh specimens. Knees with minute lighter dots. Tarsal claws of 2 , equal and simple. Head with deep chocolate ground, clothed with ferruginous linear curved, and black erect forked scales, with creamy lateral patches, narrow¬ ing above to form a whitish posterior border to the eyes ; proboscis, antennae and palpi nearly black; the last exceeding the first in length by half the length of the subulate terminal joint. Scutellum nearly bare, the middle, with six strong bristles and strong tufts on the lateral lobes. Pleurae and sternum black, the former marked with greyish scales. Legs dark greyish brown, with narrow yellowish tips to the femora and tibiae ; the coxae and bases of femora yellowish ; first hind tarsal joint shorter than its tibia. Halteres pale yellow. Venter clothed with colourless scales, through which the green plant juice on which both sexes feed is visible, so as to give a distinctive pale green hue to fresh specimens. Length.—About 5 mm. Habitat.—Naini Tal, Himalayas, 7,000 ft. Breeds in pure rainwvater pools in the course of hill streams which become raging torrents even after moderate rain. The larva is notable for its very long antennae and also for its long respiratory syphon. The adult females do not bite. 93. CULEX CONSOBRINUS, R. Desvoidy (“Essai,” p. 408). = C. inornatus, Williston ; = C. impatiens, Walker ; = C. pinguis, Walker (?). [List, Brit. Mus. Dipt. p. 5, Walker (= impatiens); North American Fauna, Washington Gov. Press (1893), Williston (= inornatus) ; Science Gossip, pp. 79-81 (1867), Walker (?) (= pinguis).] Tarsi brownish-yellow. Thorax bright chestnut-brown, darkened towards the sides, and on a narrow dusky central line ; with scattered golden curved scales. Abdomen brown, with