66 Psyche {June 
TRICHOPROSOPON THEOBALD (DIPTERA; CULICID). 
C. S. Lupiow. 
Army Medical Museum, Washington, D. C. 
Some specimens of this interesting genus from the Canal Zone 
bring up again the question of synonymy. — 
The species under consideration is quite possibly new, and as 
such is described below, but there is a certain amount of uncer- 
tainty on the subject arising from the following conditions. The 
specimens were compared with all the available descriptions and 
coincided with none, then they were taken to the National Museum 
where, what I believe to be identical specimens were found, but 
which H. D. & K. had referred to and described as Culex digitatus 
(Joblotia digitatus) Rondani, and Theobald’s Trichoprosopon 
nivipes was reduced to a synonym under this species. Of course 
the original description by Rondanzi is, as are all short descriptions, 
too indefinite to be of much value, and Theobald’s description of 
nivipes does not cover these specimens unless the note under 
“Observations” at the end of his description modifies it suf- 
ficiently to do so. At all events, my specimens have, in eight males, 
always the distal tarsal joint of the mid-legs and the apex of the 
fourth point, brown, as will be seen below. ‘The specimens in the 
National Museum show the same condition, and the very tip if the 
distal joint in the female is also brown. It may be, of course, a 
local variation, as Theobald’s specimens came from Trinidad, and 
mine from the Canal Zone, but Theobald speaks of his species 
having “pure white”’ joints, and it seems quite unlikely that he 
could have included purely brown under that wording. Whether 
the species be digitatus is, of course, open to question, but it 
seems possible that there may be some closely allied species. At 
all events I do not think these specimens from the Canal Zone 
are nivipes, and at the risk of adding to the synonymy I am de- 
scribing these as: 
Trichoprosopon Wilsoni sp. nov. 
Head dark, covered with flat dark scales having deep (cobalt) 
blue to white iridescence, and a line of dark forked-scales at the 
nape, two heavy chaete projecting forward between the eyes and 
some shorter ones behind the eyes; proboscis dark, long, of uniform 
