244 
A Monograph of Culicidae. 
joint and whole of the second and third joints of the middle and second of 
hind tarsi white ; wings hyaline; halteres fuscous. Length, lines.”— 
Amur (Central Asia). 
17. Megarhinus rutillus. Coquillett. 
(Canadian Entomologist, p. 43 (1896).) 
“ 6 . Head black, tomentum of occiput blue in the centre, white next 
the eyes ; antennae brown, the first joint covered with blue tomentum on 
the outer side, that on the inner side silvery white; hairs of the antennae 
dark grey, their bases brown; proboscis and palpi black, covered with 
appressed blue, golden, and white tomentum ; abdomen black, its tomentum 
blue, becoming violet at the tip ; that on the lateral margins golden, 
venter with blue scales, mixed with a few golden ones ; sides of the 
abdomen bearing a few short, pale yellow hairs; legs black, the tomentum 
mixed blue, violet and golden, that on the coxae and on the apices of the 
femora entirely golden ; second joint and base of the third fore and mid 
tarsi, with the fourth joint and the base of the hind tarsi, white; one claw 
each of the fore and mid legs toothed, the others simple; wings hyaline, 
costal margin and veins brown, the scales blue and violet. ? . As in 
the J, except that the first joint of the antennae is destitute of the blue 
and silvery tomentum ; second, third, and base of the fourth joints of the 
fore and mid tarsi white ; claws simple. Length, 7 to 10 mm.”—North 
Carolina, Georgia, and Florida. 
Note.— A figure of this species is given by Howard in his 
“Notes on the Mosquitoes of the United States” (Bull. 25, New 
Series, U.S.A. Dept. Agriculture, fig. 21, p. 46). In this the 
palpi are shown very short; probably they are broken off; if 
not, it comes in the genus Toxorhynchites* 
Amongst other localities from which Megarhinus has been 
recorded is San Miguel, Panama. Osten-Sacken (Bio. Cent. 
Ameri. Dip. I.) records “ two £ ’s, with the fourth joint of the 
hind tarsi white, except the tip.” 
Genus 3.— TOXORHYNCHITES. nov. gen. 
Head clothed with flat scales; thorax with small, flat, 
spindle-shaped scales; abdomen with flat scales. Palpi in the 
9 three-jointed, the last joint long and rounded at the end, 
slightly curved at the apex; in the $ five-jointed; proboscis 
* Mr. Coquillett writes me that this belongs to Megarhinus , not 
Toxorhynchites. 
