194 Timehrr. 
Genus JANTHINOSOMA. Arribalzaga. 
Three species are recorded from the colony. The character by which this 
venus is easiest identified is the proportionately very long narrow upright scales 
fimbriated rather than forked, and the large spindle shaped-scales on the head 
a. Last two hind tarsals white. 
Head bright honey yellow. 
Thorax with scattered yellow and bronzy 
scales 
a " a Ef, 1. Sayi, Theobald. 
(B. G. Med. Ann., 7905, pp. 16, 27,36. 1906, 66, 72, 75.) 
Head golden, purple at the sides. 
Thorax with broad yellow scaled lateral 
areas... ? 2. Lutzii. Theobald. 
(B.G. Med. Ann., 1905, pp. 16,27, 36. 1906, pp. 66, 72,78, 75.) 
a.a. Last hind tarsal white. 
Thorax with scattered bronzy 
and yellow scales = a .. 3. posticata, Wiedemann. 
(B. G. Med. Ann., 7908, pp. 6, 22.) 
J. sayii is the musica, say, of former notes on the B. G. mosquitoes. Probably J, albipes 
which differs from /utzit in having creamy scales instead of yellow on the lateral thoracic areas 
is also to be found in the colony. 
Genus PsoropHora. Robinean-Desvoidy. 
One species only is known here. 
Psorophora Scintillans. Wiedemann. 
Hind legs with apex of femora white scaled 
The largest of the Culicine mosquitoes found here. Found on the Demerara 
river by Dr. Wise. 
GENUS STEGOMYIA. 
One species and the variety luciensis have been identified. From Yupukari 
specimens came which showed points of difference from Fasciata, but their condi- 
tion when I examined them was not such as to warrant separating them. (B. G. 
Med. Ann., /908, p. 7.) 
Legs basally banded. Last tarsal segment all white. 
1. fasciata, Fabricius, 
(B. G. Med. Ann., 7904, pp. 16, 26, 31, 36. 7906, pp. 67, 73, 74. 1908, pp. 
aN 
tical taka segment white with a black band at apex. 
2. var. luciensis. ‘Theobald. 
(B. G. Med. Ann., 2905, pp. 16, 36. 1906, p. 71.) 
jeg eee ee 
Nore,—The name fasciata is still retained by Mr. Theobald although Villiers’ Culex fasciatus 
(1789) ante-dates Fabricius’ use of the name, he type of C, fasciatus Villiers is lost and the 
description too vague to be of use, so that Mr. Theobald thinks that species had best bo set aside, 
and as the identity of Meigen’s calopus, is doubtful retain the name for C fasciatus, Fab., especially 
as this mosquito is so universally known by that name. 
