AEDES MITCHELLS 665 



interior points in North America, but these are doubtless errors of identification, 

 the real species in question being Aedes nigromaculis. 



There is some range of variation in the vestiture-coloration characters of the 

 imago, although by no means in so marked a degree as with the species of the 

 curriei group. The ornamentation of the mesonotum may be distinct or nearly 

 obsolete and varies in extent. The amount of light scaling on the abdominal 

 segments varies, particularly with reference to the median longitudinal stripe ; 

 this is well defined in typical specimens and quadrately expanded in the middle 

 of each segment ; in others the median stripe is narrow and ill defined while in 

 still others it is interrupted, producing a series of median segmental spots. 



AEDES MITCHELLJE (Dyar) Dyar & Knab. 



Culex mitchellce Dyar, Journ. N. Y. Ent. Soc. xiii, 74, 1905. 

 Orabhamia mitchellce Dyar, Journ. N. Y. Ent. Soc, xiii, 185, 1905. 

 Aedes mitchellcB Dyar & Knab, Journ. N. Y. Ent. Soc, xiv, 190, 197, 1906. 

 Ochlerotatus mitchellce Coquillett, U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 19, 1906. 

 Ochlerotatus mitchellce Dyar, U. S. Dept. Agr., Bur. Ent., Circular 72, 5, 1906. 



Original Descbiptiox of Culex mitchell^: 



This form was collected by me in southern Georgia and Florida in temporary 

 pools of fresh water. The adult resembles sollicitans, but the wing scales are wholly 

 black, th,e first tarsal joint is devoid of a light colored median band and the light 

 colored scales of the legs are pure white instead of yellow. Types, 61 specimens, 

 U. S. National Museum, type No. 8407; one $ selected as the type is from Jacksonville, 

 Pla., the larvae in dirty recently dug holes along the railroad. Other localities are 

 Green Cove Springs in temporary pools in the pines. Magnolia Springs in pools in 

 swampy land, Kissimmee, in ditch, puddles and pools at the edge of swampy land, 

 Pokatee, Fla., in a hole with old tin cans and rotten wood, and in the pine barrens 

 of southern Georgia in a puddle by the railroad at a siding. The larva closely re- 

 sembles that of sollicitans, but the air tube is considerably longer, being fully three 

 times as long as wide, while the spines of the comb are unusually long and thorn- 

 shaped. 



It gives me pleasure to name this species in honor of Miss Evelyn G. Mitchell. 



Description of Female, Male, and Larva of Aedes mitchellce : 



Female. Proboscis moderate, subcylindrical, uniform, the labellae conically 

 tapered ; vestiture black with a broad white ring somewhat beyond the middle ; 

 setae minute, black, those on the labellse more prominently outstanding. Palpi 

 moderate, about one-fourth as long as the proboscis, black scaled, the tips white ; 

 setae sparse, rather long, black. Antennse with the basal joints somewhat shorter 

 than the distal ones, rugose, pilose, black ; tori subspherical, with a cup-shaped 

 apical excavation, brown, a few yellowish scales on inner side ; hairs of whorls 

 sparse, rather short, black. Clypeus elliptical, prominent, dark brown, nude. 

 Eyes black. Occiput dark brown, broadly clothed with coarse, narrow, curved 

 scales which are dark golden-brown on the sides, light creamy yellow on the 

 vertex, a number of short, erect, forked, pale scales on the nape ; cheeks clothed 

 with broad, flat, dull white scales, a large quadrate patch of black ones above at 

 eye-margin ; bristles bordering eyes few, black, a dense tuft of pale ones project- 

 ing between the eyes. 



Pro thoracic lobes elliptical, remote dorsally, clothed with pale golden brown 

 scales above, white ones below, and black bristles. Mesonotum blackish, densely 

 clothed with narrow rich golden brown scales, a very broad, lighter more yel- 

 lowish median stripe, bordered along its sides by narrow stripes of pale yellowish 

 scales, brightest and most distinct posteriorly, scales of this lighter color about 

 antescutellar space and in short stripes over roots of wings, broad stripes of 

 deep brown scales along humeral angles ; bristles rather short, blackish. Scutel- 

 lum trilobate, brownish, clothed with pale ochraceous scales, each lobe with a 

 group of pale brown bristles. Postnotum shortly conical, prominent, brown 



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