Genus Culex. 
423 
the golden scales and the banding of the abdomen apparently 
only being on the second and third segments, make this a fairly 
easily recognisable species. 
Culex terrens. Walker. 
(Ins. Saund. p. 429.) 
Thorax chestnut-brown, with a broad patch of white scales 
on each side in front and a median pale line ; pleurae with 
numerous patches of white scales, reddish-brown; metanotum 
chestnut-brown; some golden hairs on the mesothorax. 
Head brown; eyes black, bordered with a line of white 
scales. Proboscis, palpi and antennae deep chestnut-brown. 
The plumes of the male antennae deep silky brown. No traces 
of banding on the palpi. Abdomen with metallic purple 
reflections and golden-orange scales scattered over it, with five 
distinct white lateral spots and two white spots on the sides of 
the penultimate segment. Covered with dense golden-brown 
hairs. 
Legs brown, metatarsi of the hind pair basally white, apex 
also white, a broad black band towards the middle, first tarsal 
joint all white, second basally white, last two dark brown. 
Length. —6 mm. 
Habitat. —South America. 
Observations. —I have only seen the type in the British 
Museum, from which this description is taken. It can at once 
be told by the peculiar tarsal banding on the hind legs. No one 
could identify it from Walker’s description, the t chief character 
in the legs not being noticed. 
49. Culex tibialis. R. Desvoidy. 
(Mem, de la Soc. Hist. Nat. de Paris, iii, p. 404 (1827).) 
“Thorax black, with grey tomentum; abdomen black (with grey 
tomentum ?), unbanded ; femora of the colour of honey, black and hirsute 
at the apex; tibiae intense black, robustly ciliate: joints of the tarsi honey- 
tinted, black at the apices ; first joint of the tarsi with yellow ciliae. 
Length. —4 to 6 lines. 
Habitat .—Brazil.” 
Note. —Arribalzaga does not mention this among his Argen¬ 
tine species, nor has it occurred in the Brazilian collections sent 
