238 
A Monograph of Culicidae. 
a single row, truncated, the lateral scales paler, rather large and 
broad; fork-cells of moderate length, very nearly equal in length 
and breadth, the first sub-marginal a little the narrower; stem 
of the former about two-thirds the length of the cell, nearly 
equal to the stem of the second posterior cell; posterior cross¬ 
vein nearly twice its own length distant from the mid cross-vein; 
fringe thick and long, brown. 
Halteres with a white stem and black knob. 
Length.—2 mm. 
Habitat .—Old Calabar (Annett). 
Time of capture. —April. 
Observations. — Described from four $’s in Dr. Annett’s 
collection. It is a very obscure species of dingy appearance. 
The general dusky hue and pale bases to the wings should, 
however, enable it to be easily identified amongst the West 
African Culicidae. 
Genus 17.— HAEMAGOGUS. Williston. 
(Trans. Ent. Soc. bond. (1896), p. 271.) 
Head covered with flat scales, also the abdomen. Palpi short 
in both sexes, five-jointed, the first and fifth joints small, second 
long, nearly the same length as the third and fourth together, 
antennae fourteen-jointed. Wings with the two fork-cells rather 
short; scales normal, much as in Aedes. In the $ the front 
claws are unequal, and each with a single tooth, in the 9 equal 
and simple. 
This genus is related to Aedes on account of the $ and 9 
palpi being short in both sexes, but differs from it in the palpi 
being five-jointed. The only known species is metallic and 
brilliant in colour, differing in this respect from all others of the 
genus Aedes. 
The single species, called by Williston H. splendens, occurs in 
St. Vincent and Brazil only, as far as our present knowledge 
goes, and nothing is known of its life-history. I feel certain 
that the Culex cyaneus of Fabricius, described from South 
America, is the same. 
