226 
A Monograph of Culicidae. 
SYNOPTIC TABLE OF AEDES. 
A. First sub-marginal cell longer than the second 
posterior cell. 
a. Abdomen banded. 
Abdomen with dusky black scales and 
basal crescentic bands of creamy 
scales . fuscus. Osten-Sacken. V 
aa. Abdomen unbanded, with white lateral 
spots. 
Abdomen deep black, with lateral white 
patches; stem of first sub-marginal 
cell nearly half the length of the 
cell; wings and legs black . Butleri. n. sp. 
Abdomen, &c., as in Butleri , but fork- 
cells much longer . nigrieorpus. n. sp. V 
aaa. Abdomen unbanded and unspotted. 
Abdomen brownish black, with appar¬ 
ently no lateral white patches; wings 
yellow, of a general grey tint . cinereus. Meigen. 
Thorax reddish brown, with median 
and lateral darker lines . ruf us. Gimmerthal. 
Abdomen yellow to yellowish brown ... perturbans. Williston. y 
A A. First sub-marginal cell as long as the second 
posterior cell. 
Abdomen with basal white lateral spots Pembaensis. n. sp. 
Abdomen entirely black; thorax brown, 
pleurae pale . niger. n. sp. 
1. Aedes fuscus. Osten-Sacken. 
(Bull. U.S. Geol. Surv. p. 191.) 
(Fig. 126, PI. XXXII.) 
Thorax deep blackish-brown, with narrow curved golden- 
brown scales. Abdomen steely-black, with dusky scales, second 
segment with a median basal patch of cream-coloured scales, 
third to fifth with basal crescentic pale bands, a few pale scales 
also on the base of the sixth, sometimes unbanded. Legs bronzy- 
black, with metallic lustre; femora with white scales below. 
Ungues of the 9 equal, uniserrated, of the £ unequal in fore 
and mid legs, the larger uniserrated, the smaller simple, hind 
equal, uniserrated. 
9 . Head clothed with flat dark dusky-black scales, with a 
line of yellow to orange curved scales in the middle and a patch 
