The Crane-Flies of New York — Part II 985 



States as "weavers." They frequent rather shady places and have 

 !t Lkable dlnce over three or four feet of ^^^^^^^^^^^^^ 

 name "king of the dancing tipuUds " given them by Johnson. This 

 species is the only one whose immature stages arc at all known. 



Brachypremna dispellens (Walk.) 



1860 Tipula dispellens Walk. Trans. Ent. Sec. London, n. ser vol. 5 p. 333-334. 



1886 Brachypremna dispellens 0. S. Berl. Ent. Ztschr., vol. 30, p. 162. 

 Brachypremna dispellens is the most widely distributed species of the 

 genus. It ranges from New Jersey southward thru North An.er.a -^^ 

 ?hru South America as far as Argentma. A larva found by R. C- Sha-^o- 

 in a rotten log by a stream near Washington, D C., on April 23, 1913 

 was placed in rearing and emerged in May as an adult male of this spe les. 

 The badly mutilated pupal skin was preserved and is here described. 

 No part of the larva was preserved. 



p.inn— Leneth of cast pupal skin, about 18 mm. 



Soltion browmsh yell; abdomen with a broad brown sublateral stnpe on both ventral 

 and dorsal segments; each of pleural spines set in a brown spot. 



Head small Ant^mal spines very large and crowded at base, soon passmg mto the short, 

 slender flagellum. Labrum (Plate LXXXVII. 474) blunt. Labial obes ^^^^^y^^^^^^^ 

 so as to appear as a single large, transversely rectangular lobe at ^^^^^^^^^^^..^f ^^ 

 of maxillary palpi short, not recurved at tip. Pronotal breathmg horn (Plate LXXX\ 11, 4/o) 

 sLdl slender curved, ringed with fine annuli, tapering gradually to the small apex; margin 

 o7al e wUh b^^^^^^^^^ pores. Mesonotum with eight conspicuous, blunt, naked tubercles; 

 the'our Lrmediate tubercles larger, arranged in the form of a trapezoid; anterior median 

 pa r high conical, located rather close to mid-dorsal hne. Wing sheaths reaching end of 

 send abdominal segment. Leg sheaths (Plate LXXXVII, 476) extending beyond nud- 

 length of fourth abdonnnal segment; fore legs very short, endmg opposite base of third 



tarsal segment of other legs. . . ^ 



Abdominal tergite 1 with a pair of long, slender spines before posterior margin; segn.ent 2 

 to 7 subdivided into a basal and a posterior ring, the latter with a transverse row of four long 

 L der spines before posterior margin, the seventh tergite with about six such spines; stermtes 

 t^Zl with four spines on posterior ring; pleurites with a slender spine on basal and posterior 

 Tg at base of posterior rLg between spines, an indistinct, slightly protuberant spiracle^ 

 Mat Cauda (Plate LXXXVII, 477) narrowed, small, valves blunt; on dorsa side near base 

 four conspicuous lobes, each terminating in a slender, chitinized spine; a small acute spme on 

 sides of ninth segment at base. 



Neanotype.- est pupal skin, Washington, D. C, May, 1913 (in coUection of United 

 States National Museum). 



