426 MOSQUITOES OF NOETH AMERICA 



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

 black bristles. Mesonotam dark brown, clothed with deep bronzy-brown, 

 narrow, curved scales ; bristles coarse, black. Scutellum trilobate, luteons, with 

 similar vestiture to mesonotum; each lobe with a tuft of black bristles. Post- 

 notum elliptical, prominent, dark brown, nude. Pleurae brownish with dark 

 spots, coxae luteous, with patches of flat white scales and rows of brown bristles. 



Abdomen subcylindrical, truncate at tip; dorsal vestiture brownish black, 

 with a series of whitish segmental bands joined to a row of lateral, basal, seg- 

 mental, triangular, white patches; first segment unhanded; venter pale brown- 

 ish scaled, with indistinct basal segmental white bands; ends of segments with 

 pale hairs; tip of abdomen bristly. 



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

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

 nearly twice its own length distaait from anterior cross-vein; scales of veins 

 brown, outstanding ones on second to fourth veins near tip of wing very dense, 

 mostly narrowly ovate. Halteres whitish, with dark knobs. 



Legs moderate, black sealed with a bronzy reflection ; femora whitish beneath 

 on basal portion. Claw formula, 0.0-0.0-0.0. 



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



Male. — Proboscis long, straight, gradually enlarged to apex; bronzy black. 

 Palpi exceeding the proboscis by more than the length of the last joint; 

 vestiture bronzy brown. Antennae plumose; last two joints long and slender, 

 rugose, pilose, black, the others short, whitish, with black rings at inser- 

 tions of hair-whorls; hairs long, dense, black. Coloration similar to the 

 female. Abdomen elongate, slender basally, broadened towards apex; dorsal 

 white bands broad and distinct, that on the seventh segment expanded laterally; 

 lateral ciliation coarse, moderately abundant, brown. Wings hardly narrower 

 than in the female, the stems of the fork-cells about the same ; vestiture scarcely 

 sparser. Claw formula, 1.0-1.0-0.0. 



Length : Body about 3 mm. ; wing 3.5 mm. 



Genitalia (plate 11, fig. 73) : Side-pieces over twice as long as wide, tips con- 

 ically tapered ; lateral process situated near middle, divided, outer branch bear- 

 ing a leaf -like appendage and two setae, inner also slender, bearing a stout fila- 

 ment at tip and a smaller one near base. Clasp-filament rather small, simple, 

 with an inserted terminal claw. Harpes erect, broad, rather thin, crowned with 

 a comb of fine spines. Harpagones divided, forming two or three pointed, nar- 

 row plates. Basal appendages small, rounded, remote, setose. 



Life history and habits unknown. 



Island of Cuba, West Indies. 



Havana, February 15, 1904 (J. K. Taylor). 



CULEX MASTIGIA, new species. 

 Descbiption of Female and Mate of Chlex mastiqia (Labva Unknown) : 



Female. — Proboscis rather slender, enlarged towards apex, labellae conically 

 tapered ; vestiture black with a bronzy luster ; setae minute, curved, black, those 

 on labellae more prominently outstanding. Palpi short, black, one-fifth as long 

 as proboscis with a few outstanding setae at base. Antennae moderate, jointe 

 subequal, rugose, pilose, black, second joint a little longer than third; tori sub- 

 spherical, with a cup-shaped apical excavation, brown ; hairs of whorls moderate, 

 sparse, black. Clypeus rounded, convex, brown, nude; Eyes black. Occiput 

 brown, clothed with broad, flat bronzy-black scales with a gray or white luster 

 in some lights ; a small area of narrow, curved scales on nape ; many erect, forked 

 black ones dorsally ; flat white scales on the cheeks and narrowly on orbits below ; 

 a row of black bristles along margins of eyes. 



