Genus Culex. 
1 07 
first, third, and fifth longitudinals darker scaled than the rest 
of the veins; scales of typical Culex form. Halteres entirely 
ochraceous, the stem pallid. 
Length .—5 mm. 
Habitat. —Thayetmyo, Upper Burma (Watson) (94. 4). 
Date of capture. —August. 
Observations .—Described from a single female in good preser¬ 
vation. The characteristic thoracic and abdominal ornamentation 
will at once separate it from any other mosquito. The only one 
that I have seen to which it approaches is C. ochraceous , mihi, 
but in that species the lateral abdominal dark patches are 
triangular and the thorax is differently ornamented. 
99. Culex concolor. Robineau Desvoidy. 
(Mem. d. 1. Soc. d’Hist. Nat. de Paris, iv. 405.) 
(Figs. 109 and 110, PI. XXVI[L) 
Thorax brown, with tawny curved scales, with patches of 
paler scales in the middle line in front, a central patch, two 
lateral ones and other pale scales in front of the scutellum. 
Abdomen with brown scales, the first few segments with apical, 
dull creamy borders; the fifth with a basal dark band, most of 
it and all the remaining segments densely dull ochraceous yellow ; 
wings with a yellowish tinge. 
9 • Head dark brown, purplish in some lights, with scanty 
creamy curved scales on the crown and around the eyes, black 
upright ones behind, similar brown ones in front, numerous 
brown bristles projecting forwards, cream coloured at the sides ; 
eyes purplish, with a cupreous tinge; antennae brown, with 
pale bands covered with white pubescence and with dark 
verticillate hairs; basal joint bright ferruginous, also the basal 
half of the second joint, a few white scales on the first two 
joints; palpi clothed above with dark purplish brown scales, 
with a few white ones at the sides and tip, yellowish-brown 
beneath; proboscis dark at the apex and base, dusky in the 
middle, apex and base covered with deep brown scales, the 
middle with ochraceous scales, and scattered dark ones giving 
it a quasi-banded appearance; there are also scattered black 
bristles along its entire length. 
