THE CRANE-FLIES OF NEW YORK PART II 779 



ment 7, on which there are about fifteen. Abdominal pleurites with tubercles arranged in 

 longitudinal rows, there being about six rows on each of segments 2 to 6, the rows being 

 almost continuous for the whole length of abdomen; tubercles at caudal margin of each 

 segment enlarged and powerful; on segment 6 the rows converging behind into a single 

 powerful tubercle on caudal margin of segment; a similar enlarged tubercle on caudal margin 

 of seventh segment; segment 7 and cauda narrowed. Male cauda (Plate XV, 22) with a 

 prominent dorso-median lobe projecting directly away from the body; dorsal sheaths short, 

 indistinctly bilobed; ventral sheaths very elongate, divergent (Plate XV, 23). Female cauda 

 (Plate XV, 24) with the same prominent dorso-median lobe; acidotheca of ovipositor long, 

 straight, beyond its midlength a blunt, conical tubercle directed laterad and slightly caudad; 

 sternum (Plate XIV, 15) with ventral lobe only about half length of tergal acidothecae, caudal 

 margin with three lobules. 



Nepionotype. Orono, Maine, June 24, 1913. 



Neanotype. With the larval type. 



Paratypes. Both larvae and pupae, June 24 to July 5, 1913. 



SUBFAMILY Bittacomorphinae 



The following keys separate the genera of the subfamily Bittacomor- 



phinae : 



Larvae 



Size small (total length under 20 mm.); coloration black, breathing tube light yellow; 

 breathing tube entirely retractile; body covered with very long projections which are 

 incased in a black, horny substance; mandibles with an inner comb of teeth. 



Bittacomorphella Alex. (p. 779) 



Size larger (total length over 40 mm.); coloration rusty red; body tapering gradually to the 

 long, slender, partly retractile, breathing tube; body covered with transverse rows of shorter, 

 stellate tubercles; mandibles without an inner comb of teeth. 



Bittacomorpha Westw. (p. 783) 

 Pupae 



Size small (length, excluding breathing horn, under 12 mm.); right breathing horn small, 

 degenerate; abdominal tubercles weak, tipped with several strong setae. 



Bittacomorphella Alex. (p. 779) 



Size larger (length, excluding breathing horn, over 14 mm.); right breathing horn elongate, 

 filiform, longer than the body; abdominal tubercles strong, elongate, crowned by a circlet 

 of four or five spines and tipped with a setiferous papilla. . .Bittacomorpha Westw. (p. 783) 



Genus Bittacomorphella Alexander (Gr. diminutive of Bittacomorpha) 



1916 Bittacomorphella Alex. Proc. Acad. Nat. Sci. Phila., p. 545. 



Larva. Body short, covered with very prominent projections which are longest on lateral 

 and caudal parts of body. Pseudopods prominent, with very large, curved claws. Breathing 

 tube short, entirely retractile within body. Head subquadrate, the foramen ventral in 

 position; setae of head unbranched. Mandible with an inner comb of teeth. Mentum 

 bilobed, cephalic margin untoothed. Coloration black; breathing tube light yellow. 



Pupa. Right breathing horn very short, degenerate. Fore tarsi overlying middle tarsi. 

 Tubercles on abdomen moderately elongated, not crowned by a circlet of spines as in Bitta- 

 comorpha, but tipped with a long seta. 



