AEDES AUROIDES 749 



Wings rather broad, hyaline, slightly infuscated ; petiole of second marginal 

 cell shorter than its cell, that of second posterior cell about the same length as 

 its cell ; basal cross-vein a little less than its own length distant from anterior 

 cross-vein; scales dusky, those on costal margin black, the outstanding ones 

 broadly linear. Halteres vphitish, with dark knobs. 



Legs moderately long and slender; femora whitish scaled below, with black 

 ones above and a black ring before tip; knees white; tibiae largely pale-scaled 

 below, bronzy-brown above, tips black; tarsi black with a bronzy luster, some- 

 what paJer beneath. Claw formula, 1.1-1.1-1.1. 



Length : Body about 4 mm. ; wing 4.3 mm. 



Life history and habits unknown. 



Nova Scotia, New Brunswick, and Labrador, Canada. 



Younghall, New Brunswick, July 2, 1908 (A. Gibson) ; July 6, 1908 (J. 

 Fletcher) ; Cape Charles, Labrador, July 38, 1906 (C. W. Johnson) ; St. Lewis 

 Inlet, Labrador, July 12, 1906 (C. W. Johnson) ; Rigolet, Labrador, July 18, 

 1906 (C. W. Johnson). Also reported from Nova Scotia (Walker). 



Walker described Aedes provocans from Nova Scotia. We have no specimens 

 from that locality, nor have we had an opportunity to study Walker's types; 

 but we venture to identify the present specimens with this species rather than 

 to describe them under a new name. 



AEDES AUROIDES (Felt) Dyar & Knab. 



Culicelsa auroides Felt, Bull. 97, N. Y. State Mus., 448, 449, 1905. 



Culicelsa auroides Dyar, Journ. N. Y. Ent. Soc, xlv, 109, 1906. 



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



Ochlerotatus auroides Coquillett, U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 21, 1906. 



Ochlerotatus auroides Dyar, U. S. Dept. Agr., Bur. Ent., Circ. 72, 5, 1906. 



Culiselsa auroides Theobald, Mon. Culic, iv, 380, 1907. 



Culicelsa auroides Theobald, Mon. Culic, v, 322, 1910. 



Original Description of Culicelsa auroides: 



Several larvae of this species were taken at Elizabethtown, N. Y., and were at first 

 supposed to be the young ofC. aurifer Coq. A close study, however, showed marked 

 structural differences between the two in the larval stage, though the adults present 

 a very similar appearance. It is therefore described as a new form. 



Female. Proboscis dark brown, about two thirds the length of the body. Palpi 

 short, dark brown, third segment about one third the length of the stout uniform 

 fourth segment; fifth rudimentary. Antennae a little shorter than the proboscis. 

 Basal segment yellowish brown, fuscous internally and with an inconspicuous patch 

 of whitish scales dorsally and internally; other segments dark brown with medium 

 basal whorls and thinly clothed with short golden setae. Occiput thickly clothed 

 with curved, golden yellow scales and with numerous erect, golden yellow, fork scales 

 posteriorly. Mesonotum with a conspicuous median stripe of rich brown scales, 

 becoming yellowish, thinner and obsolete posteriorly. A short, sublateral line of the 

 same color occurs on the posterior third; other portions of mesonotum rather thickly 

 clothed with golden yellow scales. Pleura thickly clothed with silvery white scales. 

 Scutellum rather thickly clothed with long, golden yellow scales and with a con- 

 spicuous median and smaller lateral apical groups of long, golden yellow setae; 

 postscutellum smooth, dark brown. Halteres, apical portion slightly fuscous, basal 

 eemitransparent, whitish. Abdomen dark brown with distinct basal yellowish 

 white bands, slightly prolonged laterally. Terminal lobes fuscous. Ventral surface 

 suffused with yellowish white scales. Coxae brownish yellow, rather thickly 

 clothed with whitish scales; legs brown, unhanded. Femora and tibiae yellowish 

 white ventrally; tarsi dark brown, tarsal claws unidentate. Wings with costa and 

 first longitudinal vein thickly clothed with purple brown scales, subcosta and other 

 veins more sparsely ornamented; fringe a purplish gray. Petiole of first submarginal 

 cell about two thirds the length of the cell; that of the second nearly as long as its 

 cell. Posterior cross vein a little over its own length from the mid cross vein. 



Described from a freshly bred, isolated specimen obtained May 12 in the larval 

 stage at Elizabethtown N. Y. The larva presents some marked differences, par- 

 ticularly in the shape of the antennae at least, from that of the typical aurifer 

 received from Mr. Brakeley of Hornerstown N. J. 



