626 MOSQUITOES OF NORTH AMERICA 



the posterior half, the latter area sharply limited in front by an indented line 

 across the middle of the mesonotum, the pale color extending medianly to the 

 antescutellar bare space ; vestiture on the pale ground of narrow, curved, golden 

 scales, giving place to black ones behind the middle on the dark lateral ground- 

 color; numerous pale golden bristles in two lines on the disk, marginally and 

 over roots of wings. Scutellum trilobate, dark brown, the middle lobe roundedly 

 prominent, many narrow, curved, black and golden-yellow scales on the middle 

 lobe and a few of the same color on the lateral lobes ; middle lobe with about 

 eight golden bristles, lateral lobes with about four. Postnotum elliptical, 

 prominent, dark yellow, nude. Pleurae shining, ocher yellow, with two broad, 

 dark brown transverse bands, the upper from the anterior angle of mesonotum, 

 between them a large patch of broad white scales and a few pale bristles ; coxae 

 yellow, concolorous with legs, with patches of golden-yellow scales and long 

 yellow hairs. 



Abdomen subcylindrical, rather slender, posteriorly depressed and tapering, 

 dark brown, rather densely clothed with deep golden-yellow scales, bronzy 

 shaded on posterior margins of segments ; some specimens show distinct broad, 

 dark-brown, apical, medianly produced bands; venter similarly colored, un- 

 banded ; setae numerous, short, golden brown. 



Wings long and rather narrow, membrane smoky, stained with brown along 

 basal half of fifth vein and lower end of cell, yellowish along the costa nearly to 

 apex; petiole of second marginal cell shorter than the cell, that of second 

 posterior proportionately longer, but still not as long as the cell ; basal cross- vein 

 distant about its own length from anterior cross- vein ; scales of the veins narrow, 

 broader and lanceolate towards tip of wing, yellow along the costa, subcosta and 

 first vein to the apical fifth of wing ; the remaining veins with dull brown scales ; 

 fringe dull brown. Halteres with pale stems and blackish knobs, extreme apices 

 with pale scales. 



Legs long and rather slender, ochreous, clothed with golden-yellow scales and 

 with short brown bristles ; tips of femora with black suberect scales ; tibise and 

 hind tarsi with tips of all the joints brownish-black scaled ; fore and mid tarsi 

 entirely golden scaled; hind tibiae and base of first tarsal with rather sparse, 

 long, erect, shaggy blackish-tipped scales, the following tarsal joints smooth. 

 In some specimens the first three joints of the fore tarsi are dark scaled at their 

 apices, the last two entirely dark scaled, the mid tarsi with the last three joints 

 dark at their apices, hind tarsi with the last three joints dark scaled ; others show 

 intergrades in the amount of brown shading on the tarsi. Claw formula, 

 1.1-1.1-0.0. 



Length : Body about 5.5 mm. ; wing 5 mm. 



Dr. Goeldi describes and figures the eggs. They are of typical Aedes form, 

 broadly and sharply fusiform, more convex on one side than on the other, densely 

 granular, black. Size about 0.5 mm. x 0.3 mm. Laid singly. Mr. Busck bred a 

 specimen from water in bamboo, but the larval skin is not at hand. 



Central America to Brazil ; absent from the Antilles. 



Cacao, Trece Aguas, Alta Vera Paz, Guatemala, April 15, 1906 (Schwarz & 

 Barber) ; Bluefields, Nicaragua (W. F. Thornton) ; Tabernilla, Canal Zone, 

 Panama, July 18, 1907 (A. Busck) ; Tabernilla, Canal Zone, Panama (A. H. 

 Jennings) ; Gatun, Canal Zone, Panama, January 11, 1909 (A. H. Jennings) ; 

 Trinidad, West Indies (F. W. Urich) ; Para, Brazil (C. F. Baker). The species 

 is reported also from Tabatiuga, State of Amazonas, and Murutucii, State of 

 Para, Brazil (Peryassii) ; Eio de Janeiro and Sao Paulo, Brazil (Lutz). 



Wiedemann's description appears to agree with the species before us, although 

 he makes no mention of the raised scales on the hind legs (these are very incon- 

 spicuous) nor of the structure of the claws. Giles, Theobald, and Blanchard 



