THE CRANE-FLIES OF NEW YORK PART II 973 



brown.) In old and fully colored pupae, bases of dorsal spines brown, with the tips paler; 

 head and thorax with appendages brown, in some specimens very dark; abdomen yellowish. 



Cephalic part of head very flat and broad, without spines but with a small, blunt tubercle 

 between antennal bases. Labrum transversely wrinkled, narrowed to the bluntly rounded 

 apex. Labial lobes large, divergent, each lobe rectangular with angles rounded. Sheaths* 

 of maxillary palpi rather long, curved strongly backward. Antennal sheaths rather enlarged, 

 directed cephalad, bending around anterior margin of eye and thence directed caudad, 

 ending just beyond knee joint of fore legs. (In older pupae, the peculiar nodose antennal 

 segments of the adult show thru the sheath.) Pronotal breathing horns (Plate LXXXV, 

 464) jlarge, conspicuous, directed dorsad and laterad, the terminal half bent rather 

 suddenly cephalad. Mesonotum transversely wrinkled. Metanotum (Plate LXXXV, 463) 

 with two long, slender spines, arising beyond midlength of segment, directed caudad and 

 slightly dorsad. Wing sheaths broad, reaching posterior margin of second abdominal seg- 

 ment. Leg sheath ending just before posterior margin of third abdominal segment; fore legs 

 the shortest, hind legs the longest. 



Abdominal segments with a narrow basal ring and a broader posterior ring; segment 1 

 about half as long as segment 2; tergites 1 to 7 with a pair of long, slender, spinous pro- 

 jections, shortest on anterior segment, longest on seventh segment, these projections arising 

 from near caudal margin of segment, directed dorsad and caudad, those of anterior segment 

 almost parallel, those of posterior segments more divergent; segments 2 to 7 having lateral 

 margins produced into three sharp spines, one on basal ring and two on posterior ring of 

 each segment, these spines directed laterad and caudad, the terminal spines more sharply 

 caudad than the other two; abdominal sternites armed as follows: segment 3 with a small, 

 subapical spine on either side, these spines very widely separated, segment 4 with similar 

 spines but larger and more prominent, segments 5 to 7 similarly armed but with another 

 pair of small spines about midlength of segment and much nearer midline of body, segments 

 2 to 7 with a subbasal triangular pit on either side, these pits widely separated; eighth 

 tergite with caudal margin rounded, concave, the lateral angles produced backward, upward, 

 and slightly outward as strong spines; suture on ventral surface incomplete; two small spines 

 on either side of middle line of body; posterior margin of segment produced caudad as two 

 strong spinous projections. Male cauda with sternal valves rather long, tipped with two 

 to four acute spines, in some specimens with two spines on one of the lobes and only one 

 on the other; tergal valves a little rounded at tips, slightly longer than sternal valves. Female 

 cauda (Plate LXXXV, 465 and 466) with sternal valves slender, feebly notched at tips; 

 tergal valves broader, rounded at tips, and with a deep median split. 



Nepionotype Coy Glen, Ithaca, New York, May 8, 1913. 

 Neanotype Ithaca, May 30, 1913. 



Paratypes. Larvae and pupae with types; others from Orono, Maine, June 17 and 19, 

 1913. 



Genus Triogma Schiner (Gr. three + furrow) 



1863 Triogma Schin. Wien. Ent. Monatschr., vol. 7, p. 223. 



Larva.' Body covered with elongate leaflike projections, some of the dorsal ones with 

 as many as four teeth on anterior convex face. Spiracular disk surrounded by four lobes. 

 Pupa. Dorsum of abdomen with elongate branched spines. 



