INSECUTOR INSCITI^ MENSTRUUS 87 



The egg is thickly fusiform, from side view flat below, 

 Toundedly angled dorsally, scarcely more pointed at one end 

 than the other, from dorsal view, roundedly angled on both 

 sides, the antemicropylar end longer and slenderer. Length 

 about 0.7 mm. Black, smooth, the ends rounded, with gelatin- 

 ous annular cushion at micropyle. Laid singly. 



The females come readily to bite, but are deliberate in se- 

 lecting a place and easily alarmed. Two specimens, although 

 having inserted the proboscis, seemed unable to draw blood 

 and were finally captured with the stomach empty. 



Two specimens taken at Glenbrook, Nevada, June 5, 1916, 

 are apparently of this species. 



Aedes increpitus, new species. 



Male. — Integument black. Head with pale yellowish scales, 

 flat on the sides, narrow curved on the vertex and shading to 

 brownish there ; vertical bristles pale, those along the margins 

 of the eyes black. Mesonotum with coarse narrow curved 

 scales, pale yellowish, broadly replaced by smaller dark brown 

 ones in two contiguous dorsal bands and a broad subdorsal 

 posterior one; the pale scales are left in a scattering dorsal 

 line and in a distinct subdorsal one, beginning in a spot in the 

 middle of the mesonotum and running to antescutellar space ; 

 scales about this space broadly pale. Abdomen with basal seg- 

 mental white bands, rather broad ; venter sparsely whitish 

 scaled, with a median row of segmental ovate black patches 

 and sublateral apical spots. Legs with black and white scales 

 intermixed, femora whitish beneath ; tarsi largely black after 

 the first joint, each joint with a basal white ring except the 

 last joint, which is wholly black. Length of wing, 4 mm., the 

 wing scales black, but mixed with white along the costa and 

 vein 1. 



Genitalia : Side pieces over three times as long as wide, 

 rounded at tip ; apical lobe prominent with a few small setae ; 

 basal lobe small, rounded, uniformly finely setose ; harpagones 

 moderately long, curved, minutely setose toward base, the fila- 

 ment long and curved, with a lateral expansion, like a slender 

 foot with pointed heel. 



