46 INSECUTOR INSClTl^Ti MENSTRUUS 



TWO NEW AMERICAN MOSQUITOES 



(Diptera, Culicidce) 



By HARRISON G. DYAR and C. S. LUDLOW 

 Culex (Melanoconion) homoeopas, new species. 



Male. Proboscis black, the palpi exceeding it by nearly the 

 length of the last two joints, which are sparsely hairy, sharply 

 pointed. Vertex of head with dense flat black scales, the tips 

 a little bronzy, whitish along the margins of the eyes in an 

 even border. Mesonotum dark brown, with narrow curved 

 golden scales, mixed with brown ones about the antescutellar 

 space and on the sides. Abdominal integument testaceous, the 

 scales black, the first four segments wholly black above and 

 below, the fifth with a pale triangular basal yellowish spot 

 and a narrow transverse pale line on the venter close to its 

 base. Legs black, the femora pale beneath ; tips of femora 

 and tibiae narrowly pale. Wing-scales black, ligulate, becom- 

 ing narrowly ovate on the forks of the second vein. 



Hypopygium. Side piece curved, slightly swollen mesially, 

 finely setose, with coarse setae without. Clasper simple, bent 

 at right angles in the middle (which may be an artifact), the 

 terminal half slightly enlarged and flattened; spine subapical, 

 appendiculate, slender. Outer division of the lobe of side 

 piece slenderly columnar, with three broadly blade-shaped 

 filaments and a small leaf radiating from its summit. Inner 

 division of the lobe with the limbs well separated, the outer 

 long, the inner short, each with a long stout sinuate filament 

 with flattened pointed tip; a radial pecten between the inner 

 and outer divisions of the lobe. Mesosomal plate thick, bent 

 in the middle, tapering to a point ; a thorn-like branch at the 

 angulation, formed much as in Culex {Micra'Mes) corrigani 

 D. & K. (Ins. Ins. Mens., vi, plate iv, fig. 15, 1918), but the 

 branch is pointed ; articulated plate broadly spatulate, one limb 

 more expanded than the other; basal hooks broad, recurved, 

 expanded on one side by a wide thin membrane ; tenth sternites 

 slender, comb-shaped, narrowly expanded at base, but without 

 shoulder or basal arm. Ninth tergites moderate, elliptical, 

 olilique, densely setose except along the inner margin. 



