CULEX ELOCTJTILIS 247 



CULEX ELOCUTILIS Dyar & Knab. 



Culex elocutilis Dyar & Knab, Smiths. Misc. Colls., quart, iss., lit, 255, 1909. 

 Original Desckiption of Culex elocuthjs: 



Femaie. — Proboscis moderately long and slender, somewhat swollen towards the 

 apex, black-scaled ; palpi black-scaled. Occiput clothed with dark scales with bronzy 

 luster, margin of the eyes narrowly white. Mesonotum uniformly dark brown-scaled 

 with a bronzy luster, the scales on the scutellum paler. Abdomen depressed, truncate 

 at tip, dark-scaled above with distinct coppery luster, the anterior angles of the seg- 

 ments laterally silvery white-scaled; beneath with basal segmental silvery bands. 

 "Wing-scales dark brownish, long and narrow. Legs bronzy brown, the apices of the 

 hind tibiae and the bases of the first, second, and third tarsal joints very narrowly 

 pale-marked; claws simple. Length, 3 mm. 



Male. — Palpi longer than the proboscis, entirely black-scaled; coloration as in the 

 female. Length, 2.5 mm. 



Two specimens, Coscojar River, Porto Bello Bay, Panama (A. H. Jennings). 



Type no. 12051, U. S. N. M. 



Descbiption of Female and Male of Culex elocutilis (Laeva Unknown) : 



Female. — Proboscis rather long, swollen towards apex, labellse conically 

 tapered ; vestiture black, with a blue reflection towards tip ; setas minute, curved, 

 black, those on labellse more prominently outstanding. Palpi short, black, one- 

 fourth as long as proboscis, with some outstanding setae at the base. Antennae 

 moderate, the joints subequal, rugose, pilose, black, second joint slightly en- 

 larged ; tori subspherical, with a cup-shaped apical excavation, luteous ; hairs of 

 whorls sparse, black, moderate. Clypeus rounded triangular, convex, brown. 

 Eyes black. Occiput brown, clothed with narrow curved scales on vertex, flat 

 ones on sides, pale brownish, margin of eyes and cheeks dull white scaled; 

 numerous erect, forked black scales on nape. 



Prothoracic lobes elliptical, remote dorsally, clothed with narrow curved 

 scales and a few blackish bristles. Mesonotum brown, with two bare impressed 

 lines, vestiture of narrow, curved, uniformly bronzy-brown scales ; bristles black, 

 long. Scutellum trilobate, brownish luteous, clothed with narrow, curved pale- 

 brownish scales, each lobe with a tuft of black bristles. Postnotum elliptical, 

 prominent, dark brown, nude. Pleurae and coxae pale green, without black 

 bands ; small patches of elliptical white scales and rows of short pale bristles. 



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

 black scales with a strong coppery luster, ends of segments with rather coarse 

 pale bristles; a row of lateral segmental, basal, triangular small white spots; 

 venter clothed with dull-white scales, tips of segments with broad black bands. 



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

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

 vein distant about its own length from anterior cross- vein ; scales of veins dull 

 brown, those on costa blackish with blue luster, the outstanding ones linear, 

 denser towards tip of wing. Halteres whitish. 



Legs : Femora black above, white beneath nearly to apex, tips very narrowly 

 white ; tibiae bronzy brown, with a blue reflection, apices narrowly whitish ; tarsi 

 black with blue reflection, flrst, second, and third joints of hind pair with very 

 narrow basal white rings; the tarsi show a strong pale-brassy luster which in 

 certain lights causes the white rings to become invisible ; fore and mid legs with 

 the tarsi entirely black. Claw formula, 0-0.0-0.0. 



Length : Body about 3 mm. ; wing 3.4 mm. 



Male. — Proboscis straight and slightly longer than in the female. Palpi ex- 

 ceeding proboscis by more than length of last joint, penultimate joint slightly 

 thickened, last joint slender; vestiture of black scales, apex of long joint and the 

 last two joints with long black hairs. Antennae plumose ; last two joints long 

 and slender, rugose, pilose, black, the others rather short, whitish, with black 



