CULEX APATETICUS 321 



CULEX APATETICUS, new species. 

 Description of Female and Mai,e of Culex apateticxjs (Larva Unknown) : 



Female. Proboscis moderately stout, somewhat expanded towards tip, labellae 

 conically tapered; vestiture black with a blue reflection, labellae paler with small 

 outstanding set^. Palpi short, one-fifth as long as proboscis, blackish brown. 

 AntennjB moderate, joints subequal, rugose, pilose, black ; hairs of whorls sparse, 

 moderate, black; tori subspherical, with a cup-shaped apical excavation, dark 

 brown. Clypeus rounded triangular, dark brown, nude. Eyes black. Occiput 

 black, narrowly clothed on nape ^rith narrow, curved pale-bronzy scales, flat 

 ones well up sides, pale brown above, white below, and numerous erect, forked 

 black ones on vertex ; margins of eyes white scaled. 



Prothoracic lobes elliptical, remote dorsally, brown, clothed with pale scales 

 and dark bristles. Mesonotum dark brown with two narrow impressed bare 

 lines; vestiture of narrow, curved golden-brown scales and stiff dark-brown 

 bristles. Scutellum trilobate, with vestiture similar to but slightly paler than 

 mesonotum, each lobe with a tuft of dark-brown bristles. Postnotum elliptical, 

 prominent dark brown, nude. Pleurae brown with dark spots, coxae luteous, 

 with patches of white scales and rows of pale bristles. 



Abdomen subcylindrical, depressed, truncate at the tip; dorsal vestiture of 

 brownish-black scales with a slight bluish reflection, a row of lateral segmental 

 basal yellowish-white triangular spots; venter yellowish-white scaled, tips of 

 segments blackish ; hind margins of segments with yellowish hairs ; end with 

 numerous bristles. 



Wings moderate, hyaline; petiole of second marginal cell about one-seventh 

 as long as its cell, that of second posterior cell shorter than its cell ; basal cross- 

 vein distant more than its own length from anterior cross-vein; outstanding 

 scales of veins elliptical, especially towards apex, denser on second to fourth 

 veins, brown, with a blue reflection on costa. 



Legs moderate, femora whitish beneath ; tibiae and tarsi black with bronzy 

 reflection, paler beneath, tips of tibias black. Claw formula, 0.0-0.0-0.0. 

 Length : Body about 2.5 mm. ; wing 2.7 mm. 



Male. Proboscis long, straight, swollen towards apex, bronzy black. Palpi 

 exceeding proboscis by length of last two joints, slightly enlarged towards apex, 

 end of long joint and last two joints with long, dense, black hairs ; vestiture of 

 bronzy-brown scales, penultimate joint with patch of white scales at base be- 

 neath. Antenna rather long, plumose ; last two joints long and slender, rugose, 

 pilose, black, the others short, whitish, with black rings at insertion of hair- 

 whorls; hairs long, dense, black. Coloration similar to the female. Abdomen 

 elongate, depressed; segments beyond second dorsally with whitish bands at 

 their bases, narrower on sixth and seventh segments and expanded laterally, 

 second and eighth with lateral spots; lateral ciliation ample, brown. Wings 

 sli2;htly narrower than in the female ; venation nearly the same. Claw formula, 

 l.f-1.1-0.0. 



Length : Body about 3 mm. ; wing 2.5 mm. 



Genitalia (plate 13, fig. 91) : Side-pieces over twice as long as wide, stout, 

 rounded at tips, outer process columnar, bearing several distorted filaments and 

 a lanceolate one ; inner process divided, widely furcate, each limb bearing a long 

 filament with expanded bent tip ; clasp-filament with base slender and curved, 

 the tip narrowly foot-shaped, slightly serrate without, tip claw-like and \^dth 

 terminal inserted spine forming a double tip. Harpes divided, inner limb long, 

 slender, bearing a comb of spines at its tip; harpagones divided into several 

 lamellae, mostly slender and spatulate. Unci forming a small basal cone. Basal 

 appendages narrow, approximate, oblique, setose. 

 Type: No. 13707, U. S. Nat. Mus. 

 21 



