THE CRANE-FLIES OF NEW YORK PART II 1011 



Coloration grayish brown, paler gray beneath; thoracic segments conspicuously reddish 

 brown. 



Body terete. Dorsum covered with a short, dark pubescence, which gives upper surface 

 its dark color. Chaetotaxy as follows: tergites (Plate XCVI, 530) with a posterior trans- 

 verse row of two setae near base of posterior ring; sternites (Plate XCVI, 531) with about 

 eight setae, anterior median row consisting of two large setae, each with a tiny seta 

 proximad of it, the posterior pair of large setae more widely separated, laterad of each of these 

 two closely approximated smaller setae. Spiracular disk (Plate XCVI, 532) surrounded 

 by six moderately long lobes fringed with rather short, pale hairs; tips of ventral lobes with 

 a pale circular area provided with a sensory seta; inner face of spiracular disk with the 

 markings pale, ventral lobes with an indistinct capillary brown line; two brown spots beneath 

 each spiracle. Spiracles large. Anal gills eight, consisting of a transverse row of four 

 short, slender, two-branched lobes (Plate XCII, 511). 



Mentum of head capsule with median point prominent, the three lateral teeth of either 

 side small, moderately acute. Mandible with about four teeth, in addition to the large 

 basal prosthecal tooth. 



Pupa. Length: male, 12 mm.; female, 14-15 mm. 



Width, d.-s.: male, 1.7-1.8 mm.; female, 1.8-2 mm. 

 Depth, d.-v.: male, 1.9-2 mm.; female, 2.1-2.2 mm. 



Head and mouth parts as in genus. Pronotal breathing horns rather long and slender, 

 tips a little expanded. Leg sheaths rather short, just exceeding third abdominal segment; 

 hind legs a little the longest, the other tarsi ending about on a level. 



Abdominal tergites with armature weak, spines small; pleurites and sternites with spines 

 notably larger and more powerful; sternites with sub terminal row consisting of twelve to 

 fifteen spines, those of the sixth and seventh segments larger; no spines at base of posterior 

 ring; pleural spines setiferous, very weak, one on basal ring, two on posterior ring. Male 

 cauda with ventral lobes widely separated, terminating in slender, curved spines directed 

 caudad; dorsal lobes slender, approximated on dorso-median line. Female cauda (Plate 

 XCVI, 533) with tergal valves a little longer than sternal valves, the latter at their tips 

 terminating in slender points directed ventrad and laterad; dorsum of cauda with the usual 

 six lobes, posterior pair the largest, terminating in two distinct points; eighth segment on 

 pleural and sternal region with six very powerful, curved spines. 



Nepionotype. Ithaca, New York, June 3, 1917. 



Neanotype. With larva, June 3, 1917. 



Paratypes. Numerous larvae and pupae, June 1 to 12, 1917. 



Tipula abdominalis (Say) 



1823 Ctenophora abdominalis Say. Journ. Acad. Nat. Sci. Phila., vol. 3, p. 18. 

 Tipula abdominalis is the largest eastern species of the genus, altho 

 some specimens of T. caloptera are nearly as large. The adult flies are 

 on the wing in late August and September, and even, in fewer numbers, 

 in June and July. 



