890 CHARLES PAUL ALEXANDER 



pair the longer, each with two setae; anterior pair of lobes a little more widely separated; 

 laterad of latter pair of lobes, a tubercle bearing three setae; a long, powerful seta on pleura; 

 two setae on either side of median line of sternum. Female cauda (Plate LV, 274) similar, 

 but ventral lobes more pointed, slightly exceeding level of dorsal lobes. 



Nepionotype Ithaca, New York, April 18, 1917. 

 Neanotype. Fall Creek, Ithaca, May 2, 1913. 

 Paratypes. Several hundred larvae and pupae with types. 



Eriocera fultonensis Alex. 



1912 Eriocera fultonensis Alex. Psyche, vol. 19, p. 168-169, pi. 13, fig. 7. 



Eriocera fultonensis is a rather common but usually local species thruout 

 the northeastern United States. The larvae are found in the same situa- 

 tions as are described for the other species of the genus, in sand or gravel 

 near the margins of usually large streams. On May 30, 1913, larvae were 

 found in considerable numbers along the banks of Fall Creek, Ithaca, 

 New York, where they occurred in company with numerous larvae and 

 pupae of E. spinosa, a few large tabanid larvae, a small tabanid pupa, 

 and the following beetle associates: Bembidion, Schizogenius, Tachys, 

 Gastrolobium, and a few others. The pupal duration is seven days (from 

 May 31 to June 6, 1913). 



Larva. Length, 18-26 mm. 

 Diameter, 2-2.3 mm. 



Color, pale flesh yellow; anterior segments of body a little darker. 



Body long and slender. Spiracular disk (Plate LI V, 266) with ventral lobes long and slender, 

 lateral lobes shorter; ventral lobes at their tips with one or two very elongate blackish hairs 

 which are from two to three times length of lobes; in addition to these the usual apical fringe 

 of yellowish hairs not exceeding lobes; near base on outer side a small pencil of hairs; each 

 ventral lobe with a very delicate capillary black line which expands abruptly at its inner 

 end into a brown area, these two areas inclosing between their proximal ends a more or less 

 oval pale area (in some specimens the inner ends completely encircling this pale area, while 

 in others the brown lines are not continuous over the disk); Iat3ral lobes shorter, similarly 

 fringed with yellow hairs which are longer than lobes; inner face of lobes with a capillary 

 black line. Spiracles rounded oval, widely separated. 



Head capsule and mouth parts almost as in Hexatoma megacera and Eriocera longitorms, 

 as already described; epipharyngeal region (Plate LIV, 268) produced into a hemispherical 

 rounded lobe which is densely covered with fine hairs; two large papillae on either side near 

 tip, between them a terminal tuft of long yellow hairs surrounding two long, slender, setif- 

 erous papillae. Antenna with sensory papillae at tip short, about one-third length ci' segment. 



Pupa. Length, 14-16 mm. 



Width, d.-s., 1.8-2 mm. 

 Depth, d.-v., 2.5-2.7 mm. 



