MAY PLIES AND MIDGES OP NEW YORK 297 



1874 Tanytarsus V. d. Wulp. Tijd. v. Ent. 17 : 134 

 1877 T any tars us V. d. Wiilp. Dipt. Need. p.2SS, 12 



(P1.30, fig.21) 



Head, antennae and palpi pale yellow; the antennal hairs of 

 the male brownish yellow ; tip of the palpus brownish ; eyes black. 

 Thorax, seutellum and inetathorax pale yellow, the thoracic 

 stripes pale ferruginous; abdomen pale green; the claspers pale 

 yellow. Legs and halteres pale yellq^v ; fore juetatarsus about 2.5 

 times as long as its tibia. Wings with yellowish tint, pale veins 

 and densely haired. Length 1.25 to 1.5 mm. Translation from 

 V. d. Wulp^. Several specimens ; Ithaca N. Y. 



Tanytarsus (?) sp. 

 This is a very peculiar little larva from Saranac Inn N. Y. which 

 I doubtfully refer to Tanytarsus, though it may belong to 

 some one of the other genera, Chasmatonotus, Euryc- 

 n e m u s , etc., the larvae of which have not yet been described 

 as far as I am aware. 



Larva pale yellowish, length about 2.5 mm. It was found in a 

 little case constructed of grains of sand like those of some caddis- 

 flies. A dorsal view of the head is shown on pl.20, fig.lO. The 

 head is about ll^ times as long as wide, dark brown in color. 

 There are a number of setae upon the dorsal surface, distributed 

 as in the figure; on the posterior part are about 12 blunt tuber- 

 cles; at the base of each antenna (a) is a peculiar process with 

 sharp, finger-like projections (b). The antennae are wanting in 

 the single specimen, but judging from the size of the basal articu- 

 lations they are probably considerably elongated. The labrum 

 possesses prominent setae; the epipharynx is provided with the 

 usual transverse comb, prominent and elongate lateral arms, and 

 curved setae. The mandible is stout and has a prominent lateral 

 subapical seta. The maxilla has a prominent palpus, and the 

 labium has a toothed margin much resembling the one shown on 

 pl.22, fig.7, but with the central tooth somewhat wider and with 

 but 13 instead of 15 teeth. The anterior prolegs have a number 

 of slender, curved, pale_ setae, not pectinate. Upon the dorsal 

 surface of the thoracic segments are a few long, slender, pale 

 setae. The posterior end of the abdomen is wanting in this 

 specimen. 



Genus 43. Eurycnemus Van der Wulp 



Tijdschr. v. Entom. XVI (LXX) aud XVII, 135 

 Imago. Head flat in front, covered by the conically produced 

 thorax ; front broad, arched ; eyes small, reniform ; ocelli wanting. 



