INSECUTOR INSCITI^ MENSTRUUS 5 



Culex chryselatus, new species. 



Proboscis black, the labellae whitish ; palpi short in the fe- 

 male, exceeding the proboscis in the male, but not greatly so, 

 slender, with few hairs, the long joint with a white ring in the 

 middle, the last two joints with minute basal rings. Antennae 

 blackish, plumose in the male. Head with dense, rather broad 

 curved scales, golden yellow, with many erect forked golden 

 ones. Mesonotum with the anterior part, somewhat less than 

 half, clothed with narrow curved golden yellow scales, cut by 

 five narrow impressed dark lines; this area is curved behind, 

 and followed by uniform dark brown scales ; bristles coarse, 

 black. Abdomen black scaled, with small white spots at the 

 bases of the third, fourth, and fifth segments ; large quadrate 

 basal segmental lateral white spots ; venter pale, the posterior 

 segments blackish posteriorly. Legs black, femora pale at 

 base below, the tips white : hind tibiae with a white spot at base, 

 middle and apex ; tarsi with white basal rings, small on front 

 and middle legs, occupying the basal fourths of the joints on 

 the hind legs. Wings hyaline, the outstanding scales narrowly 

 ligulate. Length, about 3 mm. 



Male genitalia. Side pieces conical, three times as long as 

 wide, excavated at the base ; lobe situated near the middle, con- 

 sisting of a short rod with two stout setae, one a little more 

 basally inserted than the other ; beyond this are four setae in 

 two pairs, stouter than those of the general vestiture and on 

 slightly elevated bases. Harpes slender, comb-shaped, with 

 about ten terminal teeth. Unci divided ; an outer sheathing 

 plate, laterally situated ; a pair of basal hooks ; a triangular 

 curved plate, into the base of which is inserted by a socket a 

 thin, membranous elliptical plate; fourth plate quadrate, sharp- 

 ly angled and with a retrose tooth. 



Larva. Head wider than long, rounded on the sides. An- 

 tennae long and slender, with long terminal spines ; a very 

 slight notch at the outer fourth bearing a many-haired tuft. 

 Head hairs, upper a five-haired long tuft, lower single and 

 long, third single and small. Skin of body glabrous. Lateral 



