THE CRANE-FLIES OF NEW YORK PART II 913 



toward tip, shaped somewhat like an ear of corn, the surface delicately sculptured; besides 

 this papilla, two or three much smaller cylindrical ones. Mandible (Plate LXV, 349) slender, 

 ending in a blunt rounded lobe; ventral cutting edge with four blunt teeth, the second from 

 the base very tiny and connected with the third from the base (in some specimens the teeth 

 are very blunt and rounded, so that the cutting edge appears crenulated or wavy); a single 

 tooth on dorsal cutting edge, immediately behind apex; prosthecal region of mandible with 

 a longitudinal slitlike opening filled with a dense row of long setae. Maxilla (Plate LXV, 

 350) large and blunt, the outer lobe pale, roughly triangular, covered with numerous short 

 hairs, and with a few small sensory papillae near apex, surrounding palpus; inner lobe a 

 little shorter, densely clothed and fringed with abundant long yellow hairs. 



Pupa. Length, 6.2-7.3 mm. 



Width, d.-s., 0.7-0.8 mm. 

 Depth, d.-v., 0.8-1 mm. 



Head, thorax, and appendages brown, when fully matured almost black; breathing horns 

 yellowish; abdomen pale yellowish white. 



Cephalic crest of moderate size, consisting of two conical lobes directed forward and bearing 

 a stout seta on anterior face; immediately in front of these, a smaller transverse crest lying 

 between antennal bases. Front rather broad. Labrum triangular; lobes of labium triangular, 

 divergent; maxillary palpi elongate, moderately stout, narrowed at tips and extending beyond 

 joints of fore legs. Thorax prominent, carinate medially before declivity. Breathing 

 horns long and slender, sinuously curved, apices directed forward. Declivity of mesonotum 

 (Plate LXVI, 352) precipitous, at the crest armed with four powerful teeth, median pair the 

 largest, somewhat divergent, separated by median line; a few tiny setae on mesonotum, includ- 

 ing four in a transverse row at about the level of wing root. Wing sheaths ending opposite 

 apex of second abdominal segment. (In fully matured pupae the characteristic venation of 

 this genus shows on the wing pads.) Leg sheaths rather short, ending about opposite mid- 

 length of fourth abdominal segment; hind legs slightly the longest, fore legs a little shorter, 

 middle legs conspicuously shorter, ending about opposite apex of fourth tarsal segment of 

 fare legs. 



Abdominal segments with two very narrow basal rings and a much broader posterior 

 ring. Abdominal spiracles distinct on segments 2 to 7. Setae as follows: on pleura, one 

 immediately caudad of spiracle, a second caudad and somewhat dorsad of spiracle opposite 

 pasterior ring, another opposite anterior ring. Tergum with two setae on sides of posterior 

 ring. Segment 8 with four blunt lobes on dorsum. Male cauda (Plate LXVI, 353 and 354) 

 with ventral lobe large, bluntly rounded at tips; dorsal lobes ending in two acute, chitinized 

 points which are widely separated and directed dorsad and slightly caudad, on outer face 

 with a small seta; near base of cauda on dorsum, surface tumid and bearing a small seta on 

 either side. Female cauda (Plate LXVI, 355 and 356) with sternal acidothecae much shorter 

 than the very long tergal valves, these latter, just before apex, with an acute spine which is 

 directed dorsad and with a seta on side. (When the pupa is nearly ready to transform 

 to the adult, the long, coarse bristles covering the body of the adult, and the chitinized 

 genitalia, show thru the pupal integument.) 



Nepionotype Ithaca, New York, May 11, 1917. No. 33-1917. 



Neanotype. Ithaca, June 1, 1917. 



Paratypes About one hundred larvae and pupae from type locality. 



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