72 A Monograph of Culicidae. 



and there is another black patch near its base ; third long vein 

 pale, except for a black spot near the apex, and two near the 

 base ; the fifth has two black spots near the apices of its branches, 

 a large black-scaled area in front of and including the base of 

 the fork and its stem near the fork, rest of the vein pale-scaled ; 

 the sixth has three black spots, the median one the largest ; wing- 

 fringe with a pale area at the junction of all the veins. First 



Fig. 18. 

 Wing of Pyretophorus austenii ( 9 ). n. sp. 



sub-marginal cell considerably longer and a little narrower than 

 the second posterior cell, its base nearer the base of the wing, 

 its stem about one-fourth the length of the cell \ stem of the 

 second posterior cell rather more than two-thirds the length of 

 the cell ; supernumerary cross-vein a little behind the mid, 

 posterior about its own length distant behind the mid ; posterior 

 border-scales of the fringe long, narrow and curved. 



Length. — 5 mm. 



Habitat. — Bihe, Angola (Dr. Creighton Wellman). 



Observations. — Described from a single perfect female. The 

 chief characters are in the thoracic squamose structures and 

 marked win£ ornamentation. 



'e 



Pyretophorus pitchfordi. Power (in Giles) (1904). 



Kevis. Anop., p. 34 (1904), Giles. 



The following is the original description : — 



" Wings clothed with narrow lanceolate scales ; costa black at apex, 

 pale at absolute base, with three large yellowish spots, approaching the 

 dark parts in length, and two basal dots ; rest of veins mainly pale, but 

 with several longish black marks ; notably two on VI ; fringe spotted at 

 all junctions. Legs dark but for apical femoral and tibial spots, and the 

 tarsals minutely apically pale-banded. Thorax dark with a broad band of 

 white bloom in the middle and clothed with hair-like yellow scales behind, 

 and creamy narrow-curved ones in front. Abdomen black, clothed both 



