622 MOSQUITOES OF NORTH AMERICA 



Of the following species of Aedes we possess no larvae : 



fulvus Wied. idahoensis Theob. plutocraticus D. & K. 



campestris D. & K. aldrichi D. & K. balteatus D. & K. 



nigromaculis Ludl. decticus How., D. & K. leucomelas Lutz. 



vittata Theob. centrotus How., D. & K. hortator D. & K. 



rivarius D. & K. provocans Walk. septemstriatus D. & K. 



euedes How., D. & K. diantceus How., D. & K. sexlineata Theob. 



euochrus How., D. & K. angustivittatus D. & K. guadrivittatus Coq. 



testaceus van der Wulp. obturbator D. & K. aurites Theob. 



nubilus Theob. condolescens D. & K. excrucians Walk. 



punctor Kirby. 



AEDES BIMACULATUS (Coquillett) Dyar & Knab. 



Culex bimaculatus Coquillett, Proc. U. S. Nat. Mus., xxv, 84, 1902. 



Culex bimaculatus Dyar, Journ. N. Y. Ent. Soc, xi, 27, 1903. 



Culex bimaculatus Dyar, Proc. Ent. Soc. Wash., v, 147, pi. 2, fig. 14, 1903. 



Aedes bimaculatus Dyar & Knab, Journ. N. Y Ent. Soc, xiv, 191, 1906. 



Ochlerotatus bimaculatus Coquillett, U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 18, 



1906. 

 Ochlerotatus bimaculatus Dyar, U. S. Dept. Agr., Bur. Ent., Circular 72, 4, 1906. 

 Aedes bimaculatus Thibault, Proc. Ent. Soc. Wash., xii, 22, 1910. 



Original Desceiption of Culex bimaculatus : 



Bright yellow, the apices of the palpi and of the proboscis, also the antennae 

 except the bases, dark brown, a large black spot above insertion of each wing, apices 

 of femora black, tarsi changing into brown toward the apices; bristly hairs and 

 scales of the head and body bright yellow, mesonotum highly polished; tarsal claws 

 large, the front and middle ones toothed, the hind ones simple; wings hyaline, 

 strongly tinged with yellow along the costa, lateral scales of the veins very small, 

 Interspersed with very elongate, narrow ones, petiole of first submarginal cell nearly 

 as long as that cell, crossvein at apex of second basal cell nearly its own length 

 from the one at apex of first basal cell; length, 5 mm. A female specimen collected 

 June 16 by Mr. C. H. T. Townsend. 



Habitat. Brownsville, Texas. 



Type Cat. No. 6259, U. S. N. M. 



Description of Female, Male, and Larva or AiinEs bimaculatus : 



Female. Proboscis rather long, cylindrical, uniform, with the labellge coni- 

 cally tapered, yellowish, vestiture of deep golden-yellow scales, extreme tip black ; 

 setEe minute, brown, those on the labellge more prominently outstanding. Palpi 

 rather slender, nearly one-third as long as the proboscis, dark golden-yellow 

 scaled, tip blackish ; setae rather long, brown. Antennae with the joints subequal, 

 the distal ones longer and more slender than the basal ones, blackish, pilose, 

 rugose, extreme bases of joints between hair-whorl and articulation whitish ; sec- 

 ond joint yellow at base ; tori subspherical, with a cup-shaped apical hollow, dark 

 yellow. Clypeus elliptical, with a rounded tip, dark yellow, nude. Eyes dark 

 chocolate brown. Occiput narrow, convex, luteous, clothed with recumbent, 

 narrow curved golden-yellow scales and many long, slender, upright, yellowish 

 forked scales ; broad flat pale-yellow ones on the cheeks and along eye-margin, 



Prothoracic lobes rather large, prominent, remote dorsally, yellow, with many 

 brown bristles. Mesonotum with yellow, highly polished integument ; on the disc 

 two broad pale ferruginous stripes, separated by a very narrow yellow line and 

 extending from the anterior margin to near antescutellar space, at this point 

 they abruptly terminate with rounded ends and contain a brown spot ; above the 

 bases of the wings, occupying nearly the posterior half of the subdorsal area, 

 large subquadrate black spots with a brownish edge ; vestiture of rather dense, 

 curved, narrow golden scales and golden-brown bristles, scales on the black spots 

 sparse, hair-like, curved, black, Scutellum trilobate, dull yellow, mid-lobe with 

 a patch of narrow, curved, black scales, each lobe with about eight golden-brown 



