Tue CrRANE-FLIES oF New YorK — Part II 823 
as Geranomyia canadensis, Dactylolabis montana, Tipula ignobilis, T. api- 
calis, and similar forms. ‘The larvae live in and beneath the saturated 
cushions of moss (Amblystegium) that grow on the shale near the water’s 
edge. The only associated crane-fly larvae found near Cascadilla Creek, 
Ithaca, New York, where this species is common, were T77pula ignobilis, 
the larvae of both species being exceedingly abundant. 
Larva.— Length, 10-12.2 mm. 
Diameter, 0.6-0.7 mm. 
Color pale whitish with a green cast; transverse abdominal welts dark brown. 
Form rather long and slender. In addition to dorsal and ventral welts on abdominal 
segments 2 to 8, a complete band at base of metathorax and ventral bands on mesothorax 
and first abdominal segment; ventral abdominal bands larger and more conspicuous than 
narrow dorsal welts. A few erect setae on body. Spiracular disk (Plate XX VII, 105) rather 
small, with a deep vertical split, the large ovate spiracles capable of close approximation; 
ventral lobes blunt, with a black spot on face, fringed with short black hairs and with two 
sensory setae; each blunt lateral lobe narrowly lined with a black crescent; dorsal lobes very 
small, dusky; spiracular disk fringed with short, dark hairs. Anal gills four, large and pale. 
Head capsule as in tribe. Labrum (Plate XXVII, 106) subtriangular; anterior margin 
broad, nearly straight across, with a dense fringe of hairs which are coarser at ends of 
lobe; near anterior margin of labrum two oval, hyaline areas, each with three short papil- 
lae; a few sensory setae along anterior margin. Mentum (Plate XXVII, 107) broad, 
anterior outline triangular, running out into arather long apical point, each side with about 
five teeth. Hypopharynx (Plate XXVII, 108) as in this group of genera, consisting of a 
collar of two chitinized combs, each with about ten sharp teeth. Antenna (Plate X XVII; 109) 
short, cylindrical, the apical papilla very small, reduced to a tiny disk. Mandible (Plate 
XXVII, 110) broad, flattened, with a blunt apical point which is only a little longer than 
the teeth on either side of it; ventral cutting edge with about five blunt teeth, which are 
gradually smaller from the outermost toward the base; inner face of mandible with a blunt 
prosthecal tooth and an oblique fringe of coarse setae. Maxilla (Plate XXVII, 111) with 
the cardines large, with about three setiferous punctures; stipites short, cylindrical; outer lobe 
fringed with long hairs and bearing the short, flattened, disklike palpus, which has five or six 
hyaline pegs; inner lobe smaller, with dense, short hairs and a few sensory organs. 
Pupa.— Length, about 6 mm. 
Labrum very obtusely rounded at apex, not bilobed. Labial lobes straight across or very 
slightly convex across posterior margin. Maxillary palpi narrowed toward tips (Plate 
XXVIII, 112). Pronotal breathing horns (Plate XXVIII, 113 and 114) elongate-oval, 
earlike, the ventral margin more bulging, the apex a little narrowed but obtuse; a row of 
breathing pores along outer margin, beginning on lateral face near dorsal margin, these few 
in number and widely separated, becoming more numerous toward apex of organ. Leg 
sheaths as usual in this group of genera, those of fore legs the longest, those of hind legs 
the shortest. Male cauda (Plate XXVIII, 115) with ventral lobes (Plate XXVIII, 116) 
large, bluntly rounded at tips; two small, brown, approximated tubercles at base of split on 
