Genus Megarhinus. 117. 
a laterally placed brown joint (fig. 66, d). Legs unbanded, pale 
ventrally. 
Length.—8°5 mm. 
Habitat.—Brazil (Wiedemann); Santa Catharina, Brazil 
(Crowley bequest, 1901, 78, g and ?). 
Observations.—Redescribed from a ¢ and ? from the Crowley 
collection. They are the only specimens I have seen of this very 
distinct Megarhinus. The black or bronzy caudal tuft should at 
once separate it from all known species of the genus. 
MrcGarHInus viotaceus. Hoffmanseg. 
Culex violacea. Hoffmanseg. 
Megarhinus purpureus. ‘Theobald. 
(Dipt. Exot., p. 7, Wiedemann ; Mono. Culicid. I., p. 230, 1901, 
Theobald.) 
Additional localities—Sao Paulo, Santos, Rio de Janeiro, 
Brazil (Dr. Lutz); Bahia (Wiedemann). 
Synonymy.—The short description of Hoffmanseg’s Culex 
violacea applies as far as it goes to the species I described as 
purpureus. Wiedemann gives the characters as follows: ‘ Steel- 
coloured, with fuscous thorax; sides of the abdomen golden- 
yellow ; tarsi without any white markings.” The specimens I 
have seen show white on the venter of the mid tarsi, but if 
Specimens are carded this would easily be overlooked. No 
mention is made of a caudal tuft, which is absent in the 
specimens I have seen. Giles * says, “ caudal tufts yellow and 
black”; this is quite wrong, and is probably an assumption. 
Dr. Lutz first pointed out to me that Culex violacea and my 
Megarhinus purpureus are probably the same, and as the short 
description applies so nearly to that species I have decided to 
sink my species as a synonym. 
A @? bred by Dr. Lutz from Sao Paulo has the second pair 
of tarsi unbanded, as in the specimen sent previously, but broken 
in the post. 
Larva.—Dr. Lutz has found the larva of this species in 
Bromelias. The pupal stage lasts about eight days. 
* Handbk. Mosq., 2nd ed., p. 278. 
