The Crane-Flies of New York — Part II 887 



genus (Plate LII, 254); this'structure located on either side of capsule on ventral face, a 

 flattened, subrectangular plate whose surface, except at base, is densely set with small spines 

 and large pits; inner margin provided with large, acute spines, beginning at about one- 

 third length of sclerite, gradually enlarged toward tip, at inner angle acute; these teeth inter- 

 rupted before outer posterior angle, which terminates in a blunt, flattened lobe. Antenna 

 cylindrical, apex obliquely truncated, terminating in a slender apical papilla which is longer 

 than the segment that bears it, broad at base, tapering gradually to tip; two or three long 

 apical setae; small auditory plates at about one-third length of segment. Mandible (Plate 

 IjII, 255) a powerful, slender, curved hook, at about midlength with a strong pointed tooth 

 bearing in its axil a smaller tooth; as is usual in the genus, an egg-shaped chitinized piece 

 isolated in one of the ventral tendons of mandible. Maxilla arising just ventrad of man 

 dible, outer lobe persisting as a very elongate, bladelike organ. 



Pupa. — Length, 13-15 mm. 

 Width, d.-s., 1.6 mm. 

 Depth, d.-v., 1.7 mm. 



Head and appendages dark brown, thoracic dorsum a little paler; abdomen with posterior 

 rings of tergum and sternum dark brown, producing a banded appearance. 



CephaHc crest (Plate Lfll, 257) very large and conspicuous, consisting of two rounded 

 lobes behind, each tipped with a strong seta; anterior part of crest directed ventrad and con- 

 sisting of two lobes, the larger bearing a strong seta on outer face; viewed from front, these 

 anterior lobes separated by a very narrow, U-shaped, median notch; crest of female a Uttle 

 smaller. Two blunt tubercles on scapal segments of each antenna. Junction of clypeus and 

 labrum with two tubercles, above and slightly laterad of each a strong seta. A strong seta 

 on cheek below eye. Labrum broad, very obtusely rounded at tip. Labial lobes rectangu- 

 lar, widely separated. Maxillary palpi blunt at tips (Plate LIII, 258). Antenna of male elon- 

 gate, exceeding wing and ending opposite base of last tarsal segment of hind leg. Pronotal 

 breathing horns short, slender, cylindrical, scarcely longer than cephalic crest. Two long 

 curved setae and a smaller straight seta laterad and ventrad of base of each breathing horn. 

 Lateral angle of thorax with two setae; two long setae above wing axil (Plate LIII, 256). 

 A strong seta on either side of mesonotum and a group of two small setae in front of each 

 of these. Wing sheaths extending to base of third abdominal segment. Leg sheaths extend- 

 ing to base of fourth abdominal segment; tarsal sheaths ending about on a level, or those 

 of fore legs considerably shorter. 



Abdominal segments (Plate LIII, 259) divide 1 into two subequal rings. Chaetotaxy as 

 follows: pleura with a seta on dorsal margin of basal ring; a transverse row of three setae 

 on posterior ring, lying ventrad and slightly caudad of spiracle (as in E. spinosa) ; tergum with 

 basal ring unarmed, posterior ring with a subterminal row of sharp black spines; two long 

 setae at each end of row and a few small setae at intervals along row; a solitary seta on basal 

 lateral part of posterior ring; armature weaker on posterior segments, on segment 7 being 

 reduced to four .separated groups of setae, the outer groups with a single spine; sternum with 

 basal ring unarmed, posterior ring with a subterminal transverse row of stout black spines 

 with two long setae at each end of row and an isolated seta laterad and caudad of end of 

 row; at base of ring on either side a group of two setae, the lateral one the smaller. Male 

 Cauda (Plate LIII, 260) with the sharp dorsal lobes directed dorsad, rather acute at tips, two 



