746 A. BE Verrill—The Bermuda Islands. 
Gray Mosquito ; Culex fatigans Wied.= C. pungens Howard. 
FiGuRES 95, 6; 96: 97; 98. 
This has been identified by Theobald (Monog. Culicide, i, p. 28, 
fig. 16 ; ii, p. 151, pl. xxix, figs. 114, 115) as found here, from col- 
lections made in July, 1899, by Dr. Eldon Harvey. 
Figure 96.—Culex fatigans ; wing from a Bermuda specimen; after Theobald. 
This very objectionable species* belongs to the section of Culex in 
which the proboscis is not banded; legs neither banded nor spotted; 
97 98 
beara = 
Figure 97.—Culex fatigans; male; x 4. Figure 98.—female. Figure 99.—Yellow- 
fever Mosquito (Stegomyia fasciata); male; x 4. Figure 100.—The same ; 
female; x 4 times; after Theobald. 
abdomen with light bands at the bases of the segments; thorax with 
dark lines. 
Head and thorax deep brown ; thorax with two or three dusky 
longitudinal lines, and bearing golden brown, narrow, curved scales, 
* It is known that in many tropical countries this species conveys the germs 
of the blood-infecting nematode worm (Filaria Bancrofti), which produces the 
fatal disease called Filariasis of man. Whether this disease has been known in 
Bermuda I do not know, but it might easily be introduced there by infected 
sailors or soldiers from other countries by the aid of mosquitoes of this species. 
A similar disease in dogs, caused by Filaria immitis, is transmitted, also, from 
dog to dog, by species of Culex, hence it has been called the Filaria-bearing 
Mosquito. The C. fatigans has been found, also, to be one of the species that 
transmits the blood-parasite of birds, analogous to the malaria-parasite of man, 
but not the latter. 
