482 GNATS OR MOSQUITOES — CHAPTEB XIV 



uuibcr-brown with four white patches. Wings dusky brown, with a 

 peculiarly narrow, triangular, hinder fork-cell. Legs with femora pale 

 beneath, and small white knee-spots. Tarsal claws equal, tootlied at 

 the base on the fore and mid legs; simple in the hind pair. Length. — 

 About 4 mm. 



Habitat. — Jungle, Selangor ; Straits Settlement. Said to be common 

 and troublesome. 



3. iEDES NIGRICORPUS, Theob. (Monog. 11, p. 231). 

 Plate xiv, fig. 23, Venation of wing. 



Veins of wing very densely clothed with uniformly black, 

 long scales; anterior fork-cell three and a half tithes as long as 

 its stem, the latter much shorter than the stem of the shorter and 

 wider posterior fork-cell, which is, however, nearly twice as long 

 as its stem. Tarsi uniformly black. Thorax clothed with narrow 

 curved, black scales, on a black ground. Abdomen, seen from 

 above, uniformly black, but with small white lateral spots. 



9 . — The uniformly sooty tint of this species leaves little room for 

 description. Seen from above it is entirely so, with the exception of a 

 few white scales on the apices of the femora. The venter, however, has 

 broad white basal bands. May be distinguished from the preceding 

 species by the much greater length of the anterior fork-cell as compared 

 with its stem, and in having some upright forked cells on the head which 

 ai*e absent in Ail. Butleri. Length. — About 2'8 mm. 



Habitat. — Described from a single, very well preserved $ specimen, 

 sent me by Dr. Gray, of St. Lucia, West Indies ; the disc marked " St. 

 Glivan, Castries." Also recorded from the Lower Amazon. 



4. ^DES PEMBAENSIS, Theob. (Monog. II, p. 235). 



Closely resembles the two preceding species, but may be 

 distinguished by the fork-cells being of nearly equal length, and 

 their stems more than half the length of the cell. The head is 

 blackish-brown, covered with flat scales, and like that of ^^. Butleri^ 

 has no erect forked scales. The knees apparently unspotted. 



Described from a single 5 specimen. Length. — 4*5 mm. 

 Habitat. — Pemba Island, East Africa ; August. 



5. ^DES CINEREUS, Meig. ("S. B." II, p. 13 ; " F. E." p. 300). 



Abdomen black, with a few grey scales at the sides, and a pair 

 of basal white patches on the last segment. Thorax nearly 

 black, with a faint median line of golden scales. "Wings densely 



