THE CRANE-FLIies or New YorK— Part II 1015 
Associated with these larvae in Coy Glen, the following characteristic 
forms of insect life occur: 
Plecoptera: a small species of Perlidae. 
Ephemerida: Ephemeridae, such as Baetis, Iron fragilis, Ephemerella, 
and others. 
Trichoptera: Ryacophilidae, Hydroptilidae, and other forms. 
Neuroptera: Chauliodes larvae. 
Diptera: Chironomidae, a few; Psychodidae, Psychoda albitarsis 
Banks; Stratiomyiidae; Anthomyiidae, Limnophora torreyae Joh.; 
and other groups. 
Coleoptera: Parnidae, larvae of Psephenus lecontet (Lec.), and adult 
beetles of a species of Elmis in large numbers. 
Up to the present time it has been found impossible to rear this larva 
to the adult condition, chiefly because of the constant need of well-aérated 
water and the difficulty of supplying it. By placing the larvae in the folds 
of moistened cheesecloth, it was possible on one occasion to carry the 
species to the pupal state, but no further. It will be of interest to 
ascertain the identity of this conspicuous larva. 
Larva.— Length, 24-25 mm. 
Diameter, 2.6-3 mm. 
Coloration above, dark green with a brown pattern; beneath, light green with indistinct 
transverse brown lines; on dorsum a pale longitudinal mark on sides of posterior ring, cross- 
ing sutures between segments onto extreme base of anterior ring of following segment, the 
dark area of each segment thus appearing cruciform, this cross-shaped mark spotted and 
marbled with darker in transverse rows; base of gills and center of spiracular disk light green 
in living, healthy larvae. 
Form moderately terete, each segment with transverse rows of small, prominent tubercles, 
some of which are provided with setae. On dorsum of posterior ring a subterminal row of 
six tubercles, the middle one on each side with two setae, the remaining four tubercles unise- 
tose; two rows of smaller naked tubercles at base and middle of posterior annulus; basal 
annulus with four transverse rows of small naked tubercles; pleurites with three tubercles, 
a small seta on basal ring ventrad of basal tubercle, and two setae on posterior ring ventrad 
and cephalad of posterior tubercle; sternites on posterior ring with six setae, four on ante- 
rior row, the two middle ones very tiny. Spiracular disk almost as in 7’. collaris, T. ignobilis, 
and similar species, surrounded by six lobes fringed with moderately long hairs; inner face 
of lobes somewhat pale; ventral lobes with a narrow, capillary, dark brown line, extending 
from tip toward base; lobes narrowly and more or less indistinctly margined with brown; 
two brown spots at base of each ventral lobe, underneath each spiracle; dorsal and lateral 
lobes jutting backward at tips into fleshy conical points. Spiracles circular, moderately 
large, separated by a distance about equal to one and one-half diameter of one. Anal gills 
with eight branches, rather short and stout, with two lateral divergent branches on either 
side and an inner pair with one ventral and one posterior branch (Plate XCII, 512). 
