Genus Pseudohowardina. 
227 
wing, its stem nearly half the length of the cell; stem of the 
second fork-cell two-thirds the length of the cell; posterior cross- 
vein rather more than its own length distant from the mid ; wing 
scales rather broad. 
Length. —4 mm. 
Habitat. —Accra (Dr. Graham). 
Time of capture .—3. iii. 07. 
Observations.— Described from a single $ taken in the hospital. 
The squamose characters at once separate it. 
Type in the British Museum. 
Genus POLYLEPTIOMYIA. Theobald (1905). 
Genera. Ins. Pam. Culicid. 21 (1905) ; Mono. Culicid. IV., 223 (1907), 
Theobald. 
A single species only described in this genus. 
POLYLEPTIOMYIA ALBOCEPHALA. Theobald. 
Stegomyia albocephala. Theobald. 
Mono. Culicid. III., 140 (1903). 
Gambia. 
Type in the British Museum. 
Genus PSEUDOHOWARDINA. Theobald (1907). 
Mono. Culicid. IV., 223 (1907). 
Two species occur in this genus, one from PT. America, the 
other from Ceylon. 
Pseudohowardina trivittata. Coquillett (1902). 
Culex trivittatus. Coquillett (1902). 
Culicada trivittata. Pelt. 
Ochlerotatus trivittatus. Coquillett. 
N. Y. Ent. Soc. Journal, X., 194 (1902), Coquillett; Mono. Culicid. IV., 
224 (1907), Theobald. 
Q 
2 
N". America. 
