4 



Genus Culicelsa. 381 



stout uniform fourth segment ; fifth rudimentary. Antennae a little 

 shorter than the proboscis ; basal segment yellowish brown, fuscous inter- 

 nally and with an inconspicuous patch of whitish scales dorsally and 

 internally ; other segments dark brown, with median basal whorls and 

 thickly 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 sub-lateral line of the same colour occurs on the posterior third ; 

 other portions of the 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; post scutellum smooth, dark brown. Halteres, apical portion 

 slightly fuscous, basal semi-transparent, 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 ven- 

 trally ; tarsi dark brown, claws unidentate. Wings with costa and first 

 longitudinal vein thickly clothed with purple-brown scales, sub-costa 

 and other veins more sparsely ornamented ; fringe of a purplish grey. 

 Petiole of the first sub-marginal 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. 

 Habitat. — Elizabethtown, New York. 

 Time of appearance. — May. 



Larva about three-eighth inch long. Antennae stout, slightly swollen 

 at base, gently curved and tapering gradually to a blunt apex, tuft at the 

 basal third consisting of about four apparently simple hairs. Tip with 

 one long segmented apical process, a shorter, much more slender one, a 

 stout long process and a considerably stouter, short one. Surface orna- 

 mented with rather large, stout, somewhat isolated spines. Labial plate 

 triangular with about 25 fine teeth. Comb of 16 scales in triangular 

 patch, each with a spatulate enlarged base, coarsely and rather sparsely 

 setose on the sides, and with a stout sub-apical and a rather long apical 

 spine, the latter as long or longer than the body of the scale. Air tube 

 stout, about three times as long as broad, tapering gradually to the tip. 

 Pecten of two rows of 20 to 24 dentate spines in each, each tooth with 

 one large and two or three smaller denticulations." 



It resembles the larva of G. aurifer but can be told by the 

 antennal tuft being at the basal third, instead of beyond the 

 middle as in aurifer. 



Observations. — Described by Felt from a single freshly bred 9 . 



Felt places this in his genus Culicelsa of which taeniorhynchus, 

 Wiedemann, is the type. The description reads as a very diffe- 



