398 MOSQiriTOES of north AMERICA 



^. — Palpi about one-fourth longer than the proboscis, the two last segments very- 

 hairy, clothed entirely with deep brown scales with bronzy luster; antennae densely 

 plumose; lateral spots of the abdomen large on segments 5, 6 and 7, the lateral cilia 

 coarse, moderately abundant wiUi yellowish luster. Length, 3 mm. 



Sixteen specimens, Tabemilla and Pedro Miguel, Canal Zone, Panama (August 

 Busck, collector) , bred from larvae in a stagnant ill-smelling pool and among grass in 

 the edge of a slowly running stream. 



Type. — JHo. 10869, U. S. National Museum. 



Named, at the suggestion of Mr. Busck, in honor of Dr. J. A. Le Prince, Chief Sani- 

 tary Inspector of the Canal Zone. 



DESCBIPTION of FbMAXE, MAI.E, ARB LaBVA or CTTLEX liEPBINCaEi: 



Female. — Proboscis moderate, swollen towards tip, vestiture black witti a 

 bronzy reflection; setae minute, cnrved, black, those on labellae more prominently 

 outstanding. Palpi small, about one-fifth as long as proboscis, black scaled. 

 Antennae moderate, joints subequal, rugose, pilose, black; hairs of whorls sparse, 

 moderate, black. Clypeus rounded triangular, dark brown with a white pmi- 

 nosity. Byes black. Occiput black, with some narrow, curved bronzy-brown 

 scales dorsally, sides with flat, broad scales, dull whitish below, numerous forked, 

 black scales dorsally; a row of black bristles along margins of eyes. 



Prothoracie lobes elliptical, remote dorsally, black with a few narrow "whitish 

 scales and black bristles. Mesonotum black, clothed with dark bronzy-brown, 

 narrow, curved scales, four indistinct lines of scales of a more golden color, a 

 closely approximated dorsal pair and a subdorsal one, the latter not reaching 

 anterior margin of disk, and a line along margin of didi widened into a patch 

 before the root of the wing ; bristles rather long, dark brown. Scutellum trilo- 

 bate, with a few small, narrow brown, scales -witii a brassy luster, each lobe with 

 a group of black bristles. Postnotum elliptical, prominent, blackish, nude. 

 Pleurae brownish black, coxae dark brown, with patches of narrow, elliptical, 

 white scales and rovrs of pale bristles. 



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

 with a slight bronzy reflection, a row of lateral, basal segmental, triangular white 

 spots; venter black, segments broadly banded with white at bases; bristles on 

 apical margins of segments pale. 



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

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

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

 dense, particularly on apical portion, broadly linear to narrowly elliptical, brown 

 with a blue reflection on costa, the elliptical scales being on second to fourth 

 veins outwardly. Halteres with whitish stems and knobs. 



Legs moderate, vestiture black with a bronzy and bluish reflection, femora 

 whitish beneath nearly to apex, tips white above, tarsi with a stronger bronzy 

 reflection. Claw formula, 0.0-0.0-0.0. 



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



Male. — Proboscis straight, gradually enlarged towards apex, black sealed. 

 Palpi exceeding the proboscis by the length of the last joint, slender, apical 

 portion enlarged, end of long joint and last two joints with numerous long 

 black hairs ; vestiture entirely of bronzy-black scales. Antenna plumose ; last 

 two joints long and slender, rugose, pilose, black, the others short, pale, with 

 black rings at insertions of hair-whorls; hairs long, dense, black. Coloration 

 similar to the female. Wings scarcely narrower than in ttie female, venation 

 and scaling nearly the same. Abdomen elongate, depressed, slightly broadened 

 towards apex, lateral spots larger than in the female, sixth and seventh seg- 

 ments with distinct white basal bands, expanded at the sides; lateral ciliation 

 coarse and moderately abundant on apical half, dark, with brassy luster. Claw 

 formula, 1.1-1.1-0.0. 



