186 A Monograph of Culicidae. 
sometimes bred it in large numbers. It is not so strictly 
nocturnal as C. fatigans. 
Additional locality. Para, Brazil (Dr. Durham). 
6666. Legs with two last hind tarsi white. 
CULEX ALBITARSIS. Theobald. 
(Mono. Culicid. II., p. 25, 1901, Theobald (3g); Archives de Parasito- 
logie, VI., p. 10, 1902, Neveu-Lemaire ( ¢ ) ?.) 
The following description is given by Neveu-Lemaire of the 
2 of this species :-— 
?. This species was described by Theobald from a single example 
brought him from West Africa by Dr. Annett. The only specimen 
caught by Dr. Mathis in French Guiana was a female, of which I pro- 
ceed to give a detailed description which will complete that of Theobald. 
@. The head is dark brown; the occiput is covered with small 
yellow scales, narrow and curved, of which some are bifurcated at their 
ends; on the sides the scales are flat and yellow, those on the front being 
darker. A light border is found about the eyes. The antennae, which 
measure 2°31 mm., are shorter than the proboscis; at the base of each 
joint are to be found verticillate hairs much longer than customary in 
females of the same genus. They are fawn or golden-yellow. 
The maxillary palpi, shorter than a third of the proboscis, consist of 
three joints, the last being conical at its extremity. They are brown, 
darker at the end, completely and very closely covered with scales. The 
proboscis of a brownish-yellow, 2°79 mm. in length; the extremity, 
unlike the rest, is nearly black. Numerous very closely-set scales 
completely cover it. 
The thorax is brown, covered with scales edged with golden-yellow ; 
the median lobe (of the scutellum ?) is darker than the remainder and has 
thin silk-like black narrow-curved scales that are also to be found on the 
mesothorax. The pleurae are brown, with masses of whitish scales. ‘The 
wings, longer than the abdivmen, show no spots caused by scaly accumu- 
lations, but their colour is darker in the neighbourhood of the costal vein, 
and this colour continues getting lighter towards the top and the marginal 
side, so that the greater part of the wing is transparent. ‘The costal cell 
also is transparent at its base. The costal nerve and the fifth longi- 
tudinal nerve are darker than the others. The first sub-marginal and the 
second posterior cells are very small; the first sub-marginal is a little 
longer and narrower than the second posterior, but their base is at an 
equal distance from the base of the wing. The supernumerary and the 
middle cross-veins are a continuation of each other. The posterior cross- 
vein is long and distant about half its length from the mid cross-vein. 
The legs are long and unbanded. The coxae yellowish, as are also the 
femora at their base. ‘The base of the femora, the tibiae and the joints of 
the tarsi are dark brown. The apex of the third joint, the fourth and the 
