AEDES HORTATOR 843 



AEDES HORTATOR Dyar & Knab. 



Aedes hortator Dyar & Knab, Journ. N. Y. Ent. Soc, xv, 12, 1907. 

 Acdes hortator Theobald, Mon. Culic, v, 485, 1910. 



Original Description of Aedes hortator: 



Proboscis and palpi black; thorax yellowish, the vestiture consisting of golden 

 yellow and bronzy brown scales intermixed, the yellow predominating; abdomen 

 violet black, the fifth and sixth segments with white basal lateral patches, beneath 

 white; legs dark, hind femora white with black apices. Wing veins brown scaled. 

 Claws of the female toothed. 



2 specimens, Trinidad, B. W. I. (F. W. Urich). 



Type. Cat. No. 10250, U. S. Nat. Mus. 



Description of Female of Aedes hortator (Male and Larva Unknown) : 



Female. Proboscis rather long, uniform, labellse conically tapered ; vesti- 

 ture black ; setae small, curved, brownish, those on labellse more prominently 

 outstanding. Palpi small, about one-sixth as long as the proboscis; vestiture 

 black, setae moderate, stiff. Antenna? filiform, the joints subequal, pilose, 

 rugose, black ; second joint slightly thickened towards middle, yellowish at base ; 

 tori subspherical, with a cup-shaped apical excavation ; ochraceous in apical de- 

 pression, brownish-black externally ; hairs of whorls long, sparse, black. Clyp- 

 eus rounded triangular, depressed, with a narrow median groove, brownish, 

 nude. Occiput yellow, clothed with flat appressed scales, broadly blue-black in 

 the middle, a narrow margin along eyes and the lower part of the sides yellow- 

 scaled; a number of erect pale forked scales on nape; bristles along margins 

 of eyes and those projecting between the eyes black. 



Prothoracic lobes elliptical, remote dorsally, yellow, with some coarse brown 

 bristles. Mesonotum brownish-yellow ; vestiture of dense, narrow curved brown- 

 ish-black scales with golden-brown luster; bristles on anterior margin, over 

 roots of wings and about antescutellar space coarse, brown. Scutellum trilo- 

 bate, brownish-luteous, clothed with brownish-black scales, those on mid lobe 

 broadly triangular, each lobe with a group of bro^vn bristles. Postnotum 

 elliptical, prominent, brownish-luteous, nude. Pleurae and coxae light ocher 

 yellow, with rows of pale bristles. 



Abdomen subcylindrical, tapering posteriorly, ventrally produced into a 

 longitudinal ridge, the fifth, sixth and seventh segments somewhat expanded 

 apically; dorsal vestiture black with a bluish reflection, a row of lateral, seg- 

 mentary, basal, triangular silvery-white patches, larger and dorsally produced 

 on fifth, sixth and seventh segments; first segment with dull black scales and 

 many fine pale hairs ; venter with yellowish vestiture, the distal segments with 

 black apical bands, seventh segment black. Cerci black. 



Wings moderate, hyaline ; petiole of second marginal cell half as long as its 

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

 its own length from anterior cross- vein; scales dark brown, costa with a blue 

 reflection, the outstanding scales narrowly ligulate, dense and broader on second 

 vein. Halteres whitish, the knobs black scaled. 



Legs slender, moderately long; vestiture black with a blue reflection; hind 

 femora silvery-white scaled beneath and outwardly nearly to tip, dorsally on 

 basal three-fourths; setse of tibise long. Claw formula, 1.1-1.1-1.1. 



Length : Body about 4 mm. ; wing 3,5 mm. 



The adults were received from Mr. F. W. Urich, and were apparently bred 

 from water held by the leaf -bases of Bromeliaceae, but we have no positive assur- 

 ance on the point. 



Island of Trinidad, West Indies. 



Arima (F.W. Urich). 



