AEDES ATEOPALPUS 639 



Culex atropalpus Johannsen, Bull. 68, N. Y. State Mus., 416, 1903. 



Culex atropalpus Smith, Bull. 171, N. J. Agr. Exp. Sta., 38, 1904. 



Culex atropalpus Dyar, Journ. N. Y. Ent. Soc, xii, 172, 1904. 



Culex atropalpus Felt, Bull. 79, N. Y. State Mus., 278, 280, 305, 1904. 



CuUcada atropalpus Felt, Bull. 79, N. Y. State Mus., 391b, 1904. 



Culex atropalpus Smith, N. J. Agr. Exp. Stat.. Rept. Mosq., 260, 1905. 



Culex atropalpus Britton & Viereck, Rept. Conn. Agric. Exp. Stat., 1904, 269, 272, 



273, 1905. 

 CuUcada atropalpus Felt, Bull. 97, N. Y. State Mus., 448, 449, 477, 1905. 

 Culex atropalpis Blanchard, Les Moustiques, 628, 1905. 

 Orahhamia atropalpus Dyar, Proc. Ent. Soc. Wash., vii, 48, 1905. 

 Aedes atropalpus Dyar & Knab, Journ. N. Y. Ent. Soc, xiv, 189, 192, 1906. 

 Ochlerotatus atropalpus Coquillett, U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 20, 1906. 

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

 Culex ? atropalpus Theobald, Mon. Culic, iv, 401, 1907. 

 Culex (?) atropalpus Theobald, Mon. Culic, v, 396, 1910. 

 Aedes atropalpus Morse, Ann. Rept. N. J. State Mus., 1909, 719, 1910. 



Obiqinal Description of Culex atropalpus : 



$. Black, the halteres, apices of coxae, and bases and under side of femora, except 

 toward the apex, yellowish white; scales of palpi black, occiput covered with broad, 

 appressed whitish scales and with a patch of black ones near the middle of each 

 side, the middle of the upper side covered with narrow yellowish scales, the upright 

 forked scales yellow; scales of mesonotum golden yellow and with a median vitta of 

 black ones; scales of abdomen purplish black, and with a narrow fascia of whitish 

 ones at the bases of the segments, becoming much broader on the venter; scales of 

 legs black, those at base and on under side of femora, except toward the apex, also 

 at extreme apices of femora, both ends of tibiae and of the tarsal joints, except the 

 last two and apex of the third on the front and middle tarsi, white, those on last 

 joint of hind tarsi wholly white; claws of front and middle tarsi toothed, those of 

 the hind ones simple; wings hyaline, lateral scales of the veins long and narrow, 

 first submarginal cell slightly over twice as long as its petiole. 



^. Colouring as in the female, except that the short joints of the antennae are 

 ringed with white; palpi two-thirds as long as the proboscis, slender, the apex 

 blunt, last two joints less than half as long as the remaining portion, and bearing 

 a few rather short hairs; claspers of nearly an equal thickness, evenly covered with 

 hairs, and with a long, slender, curved claw at apex of each; fourth joint of front 

 and middle tarsi as broad as long; larger claw of front and middle tarsi one-toothed, 

 the smaller one and the claws of the hind tarsi simple. 



Length, 3.5 to 4.5 mm. Thirty-seven females and three males. Type No. 6558, 

 U. S. National Museum. 



Habitat. Richmond, Va. (Sept. 26: E. G. Williams); Plummer's Isd., Mont- 

 gomery Co., Md. (May 18 to Aug. 14: R. P. Currie and H. S. Barber); Shenk's 

 Ferry, Pa. (Oct. 21: S. E. Weber), and White Mts., N. H. (H. K. Morrison). 



Near Canadensis, but readily distinguished by the colour of the scales on the palpi 

 and mesonotum. 



Description of Female, Male, Egg, Larva, and Pupa of Aedes atropalpus: 



Female. Proboscis rather long, slender, cylindrical ; vestiture black. Palpi 

 short, less than one-fifth as long as the proboscis ; vestiture black, scales rough, 

 setse short. Antennae moderate, black, rugose, pilose, distal joints longer than 

 basal ones, second one slightly elongate and stouter, its base pale; tori sub- 

 spherical, with a cup-shaped apical hollow, brown shaded with black, a patch of 

 pale scales on inner side. Clypeus elliptical, prominent, brownish, nude. Eyes 

 black. Occiput narrow, black, densely clothed with white scales only a few of 

 which in the center are narrow, curved, most being broad, a triangular black 

 patch on the middle of the sides, a few small pale erect forked scales on vertex ; 

 bristles bordering the eyes small, black. 



Prothoracic lobes moderate, remote, black, clothed with coarse, narrow, whitish 

 scales and brownish bristles. Mesonotum black, clothed with rather coarse, nar- 

 row, curved scales, a broad dorsal stripe not reaching anterior edge of antescu- 

 tellar space dark brown, a short narrow brown stripe on each side of ante- 

 seutellar space, the rest of the scales pale golden yellow ; bristles brown, those 

 over roots of wings paler. Scutellum trilobate, clothed with pale yellow scales, 



