506 PROCEEDINGS OF THE ACADEMY OF [Oct., 
produced into a sharp point. Hypopygium quite as in puhipennis, 
but the ventral hook is more blackened, chitinized, and the point is 
longer, more slender; dorsal hook more slender, not so blackened, 
the sharp point on the proximo-lateral angle not so long. 
The female has the antennse much longer than in this sex of puhi- 
pennis, the flagellar segments dark brown, not yellowish, the terminal 
segments darkened ; flagellar segments elongate-oval instead of merely 
oval; wings (Plate XXVII, fig. 37) with the anterior margin and 
apex with a fringe of reddish brown to dark brown hairs, not bright 
yellow as in puhipeiinis. 
Habitat. — Northeastern United States. 
Holotype, cf , Mountain Lake, Fulton County, New York, altitude 
1,600 feet, July 7, 1916 (Alexander). 
Allot3T)e, 9 , with the type. 
Paratopotypes, 15 c7'9's; paratypes, 1 cf, Taylor, Cortland 
County, New York, altitude 1,200 feet, July 20, 1916, 2 cf' s, near 
Cincinnatus, Chenango County, New York, altitude 1,300 feet, 
July 21, 1916. 
Type in the collection of the author. 
A large striking species, the largest yet discovered in the eastern 
States. 
The types occurred on rich vegetation along a small temporary 
stream flowing into the lake. This is the same locality described 
under Erioptera nydops, but by this date (July 7) the stream had 
disappeared and the mid-summer crane-fly fauna was quite different 
from that found less than four weeks before. The principal species 
recorded now were the following: Dicranomyia immodesta, D. 
puhipennis, D. macateei, Elephantom.yia westwoodi, Erioptera chryso- 
coma, E. chlorophylla, E. armillaris, E. armata, E. caloptera, E. 
stigmatica, Molophilus puhipennis, M. ursinus, Limnophila fusco- 
varia, L. quadrata, Bittacomorpha jonesi, etc. 
Molophilus nova-caesariensis sp. n. 
Size small (wing under 3.2 mm.); coloration dark brownish black; 
wings dusky with the fusion between Cui and ilfs slight; hypopygium 
of the male with the ventral appendages straight, slender, heavily 
chitinized. 
Afa^e.— Length about 2.7 mm.; wing, 2.8 mm. 
Rostrum and palpi blackish. Antennae rather elongated, dark 
brown, the flagellar segments cylindrical with an abundant long 
pale pubescence. Head dark gray. 
Mesonotum black with a sparse grayish bloom ; pleura dark brown- 
