440 MOSQUITOES OF NORTH AMEEICA 



Desceiption of Male and Labva of Chlex consolatob (Female Unkxow>-) : 



Male. Proboscis long, straight, moderatdy stout and thickened along apical 

 half, vestiture entirely black. Palpi long, exceeding the proboscis by more than 

 the length of the last joint; long joint more than half the length of entire 

 palpus, slender at middle and thickened apically, just below its middle a pale 

 ill-defined constriction ; last two segments about equalling each other in length 

 and together not as long as preceding segment ; terminal segment tapering and 

 pointed; vestiture entirely black, except a narrow white ring at bases of last two 

 segments ; last two joints and apex of long joint with numerous very long black 

 hairs. Antennae plumose ; last two joints long and slender, rugose, pilose, black, 

 the others short, pale, with black rings at insertions of hair- whorls; hairs of 

 whorls long, brown; tori subspherical, with a cup-shaped apical excavation, 

 luteous. Occiput black, clothed with pale-yellowish, narrow, recumbent scales 

 on the vertex, broad, flat whitish ones on the cheeks, margins of eyes white; 

 some erect, pale, forked scales on the nape. 



Mesonotum brownish; vestiture of uniformly bright bronzy -brown, small, 

 narrow curved scales; setae brown, rather sparse, but coarse and very long. 

 Scutellum trilobate, with bronzy-brown scales ; a group of setae on each lobe, all 

 very long. Postnotum elliptical, prominent, pale brownish, nude. Pleurre light 

 greenish, a dark, transverse stripe below wing and another across middle. 



Abdomen narrow at base, depressed and broadening towards apex; vestiture 

 above deep black, with narrow whitish basal bands ; first segment unhanded and 

 with long pale setae; eighth segment entirely whitish scaled; venter yellowish- 

 white scaled, apices of segments blackish; lateral ciliation short, coarse, and 

 black ; hind margins of segments with delicate pale cilia. 



Wings rather broad ; veins with narrow brown scales, those on fork of second 

 vein slightly broader and more dense ; second marginal cell long, nearly twice 

 as long as its petiole; stem of second posterior cell scarcely longer than cell; 

 basal cross-vein more than its own length from anterior cross-vein. 



Legs slender, rather long ; vestiture black with a bronzy luster ; femora pale 

 beneath and at sides nearly to apices ; posterior tibiae with small white tip ; all 

 the tarsi narrowly white ringed at bases of all the segments, the rings broadest 

 on hind tarsi. Claw formula, 1.0-1.0-0.0. 



Length : Body 3 mm. ; wing 2.5 mm. 



Genitalia (pkte 12, fig. 87) : Side-pieces more than tAvice as long as wide, 

 tips conically tapered; marginal appendages on two prominences, well sepa- 

 rated but contiguous at base, inner with three spines, outer situated at middle of 

 side-piece bearing four rods and a leaf-like appendage. Clasp-filament long 

 moderate, pilose at tip, with a small terminal appendage. Harpes furcate, one 

 branch with a rounded tip, the other produced into a slender column, bent over 

 at tip and bearing a row of teeth arranged like a comb. Harpagones probably 

 divided, obscured in specimen. 



Larva, Stage IV (plate 111, fig. 374). Head missing. Body with skin 

 smooth; lateral abdominal hairs in twos after second segment, single on sixth. 

 Comb of eighth segment of many spines in a large triangular patch. Air-tube 

 very long and slender, straight, over sixteen times as long as wide, pecten of few 

 long teeth, on basal fifth of tube ; a single, rather long hair at middle on posterior 

 margin and another shorter one near apex; terminal hooks slender, simple. 

 Anal segment much longer than wide, ringed by the plate, which has a lateral 

 rosette of spines ; hairs all missing in our specimen ; ventral brush confined by 

 the chitinous ring. Anal gills longer than the plate, slender, pointed, equal. 



The larvae live in the water between the leaves of Bromeliace^. 



Island of Trinidad, West Indies. 



Arima (F.W. Urich). 



