344 MOSQUITOES OF NORTH AMERICA 



CULEX REVOCATOR Dyar & Knab. 



Culex revocator Dyar & Knab, Smiths. Misc. Colls., quart, iss., Hi, 256, 1909. 

 Origin AX Description of Culex revocator: 



Entirely similar to Culex cubensns Bigot, except that the labellae and tip of pro- 

 boscis are white or whitish-scaled, and other minor differences. 



Dr. Grabham sent us the specimens some time ago with the tentative determina- 

 tion " Culex cubetisis? " We verified this determination at the time, but a later re- 

 examination revealed the difference specified above. 



Twenty-five specimens, Hope Gardens and Newcastle, Jamaica (M. Grabham). 



Type no. 12100, U. S. N. M. 



Description of Female, Male, and Larva of Culex revocator: 



Female. Proboscis moderate, uniform, labellas conically tapered; vestiture 

 black with a whitish shade beneath, strongest in middle, extreme apex and 

 labellae white scaled ; setae minute, curved, black, those on labellns more promi- 

 nently outstanding. Palpi short, about one-fifth the length of proboscis, uni- 

 form, clothed with blackish scales, sets at base long and outstanding. Antennae 

 moderate, joints subequal, rugose, pilose, blackish, second joint scarcely en- 

 larged ; tori subspherical, with a cup-shaped apical excavation, yellowish shading 

 to dark brown on inner side. Clypeus rounded triangular, convex, brownish 

 black, nude, slightly pruinose. Eyes black. Occiput brown, clothed with nar- 

 row, curved scales, pale brownish on vertex, dull white on sides and along 

 margins of eyes ; numerous erect, forked scales, yellowish white on vertex, dense 

 and black on sides. 



Prothoracic lobes elliptical, remote dorsally, brown, clothed vnth a few narrow 

 pale scales and brown bristles. Mesonotum dark brown, with two narrow im- 

 pressed dorsal bare lines, clothed with narrow pale-bronzy scales with a strong 

 brassy luster, those before scutellum and two faintly indicated subdorsal stripes 

 paler; numerous brown bristles. Scutellum trilobate, luteous, clothed with 

 narrow pale scales with a brassy luster, each lobe with a tuft of brown bristles. 

 Postnotum elliptical, brown, nude. Pleurae and coxae luteous brown, clothed 

 with patches of flat white scales and rows of brown bristles. 



Abdomen subcylindrical, depressed, truncate at tip, clothed with blackish 

 scales dorsally, which have a slight bluish reflection, each segment except the 

 first with a basal transverse band of yellowish-white scales, each band widest in 

 middle, those on first four segments distinctly triangular and separated from 

 lateral spots ; a row of basal segmentary triangular lateral white spots ; last seg- 

 ment yellowish-white scaled with a black spot in middle towards tip ; seventh 

 segment white scaled along sides; venter clothed with yellowish-white scales, 

 membrane beneath dark ; ends of segments with yellowish rather long hairs, 

 abundant at tip. 



Wings moderate, hyaline; petiole of second marginal cell one-third as long 

 as its cell ; that of second posterior cell about as long as its cell ; basal cross-vein 

 distant more than its own length from anterior cross-vein; scales of veins brown 

 with a blue luster on costa, narrowly linear. Halt^res whitish with brownish 

 knobs. 



Legs moderate, uniform ; femora clothed above with black scales with a bluish 

 and bronzy luster, beneath broadly white to tips, except hind pair; knees and 

 tips of hind tibiae whitish; tibiae and tarsi black scaled with pale-brassy luster 

 beneath. Claw formula, 0.0-0.0-0.0. 



Length : Body about 3.5 mm. ; wing 3.5 mm. 



Male. Proboscis straight, gradually enlarged towards apex, with a indis- 

 tinct broad pale ring beyond middle, underside pale scaled throughout, tip and 



