THE CRANE-FLIES OF NEW YORK PART II 1007 



conditions are discussed more fully under the account of Rhamphidia 

 (page 831). The larvae are reddish brown in color, and rather sluggish. 

 One of the larvae found on April 20 pupated on the 22d and emerged as 

 an adult female on the 30th, a pupal duration of eight days. An additional 

 pupa was taken, associated with larva of Pseudolimnophila luteipennis, 

 P. inornata, Tricyphona inconstans, and other species. 



Larva. Length, 20 mm. 



Diameter, 1.8 mm. 



Coloration brown; dorsum marked with light and dark brown; a narrow, indistinct, dark 

 brown, median line, with a broader zigzag brown line on either side; ventral surface a little 

 paler. 



Body covered with a short, dark pubescence at sides of segments, at margins longer and 

 more conspicuous. Chaetotaxy as follows: tergites with six strong setae in transverse 

 alinement, the outermost in pairs; two strong setae on each pleural annulus; posterior ring 

 of sternites with eight strong setae, arranged in four pairs. Spiracular disk (Plate XCV, 

 526) pale, surrounded by six approximately equal lobes which are heavily marked with 

 brown; dorsal and lateral pairs pointed, ventral pair blunt; ventral lobes with apical half 

 shiny black, on ventral inner margin continued dorsad, almost contiguous on midline; inner 

 face of dorsal and lateral lobes suffused with dark brown, proximal margin of dorsal lobe 

 produced inward so that the marks are almost contiguous on median line; beneath each 

 spiracle a transversely rectangular, dark brown mark. Anal gills with four anterior lobes 

 which are long and slender, and a pair of rudimentary blunt posterior gills (Plate XCII, 509). 



Head capsule and mouth parts as in genus. Men turn (Plate XCV, 524) seven-toothed, 

 apical point the longest. Hypopharynx (Plate XCV, 525) bluntly five-toothed. 



Pupa. Length, 15.3 mm. 



Width, d.-s., 2.3-2.4 mm. 

 Depth, d.-v., 2.1-2.2 mm. 



Coloration dark brown; abdominal incisures paler. 



Form relatively stout. General features as in genus. Cephalic crest consisting of two 

 blunt lobes with microscopic setae. Maxillary palpi strongly curved at tip, but not entirely 

 recurved. Pronotal breathing horns short, tips a little enlarged. 



Abdominal tergites with spines weak, on median area of each row weak or lacking; on 

 intermediate segments about fifteen spines; pleurites with only a single weak spine on basal 

 ring; on posterior ring a rudimentary anterior spine and a somewhat larger posterior spine; 

 sternites similarly armed to tergites, but spines fewer in number and larger, on segment 

 5 about twelve in number; on base of posterior ring a large spine on either side median line 

 and a small setiferous tubercle laterad of each. Female cauda with tergal valves of ovi- 

 positor long and straight, sternal valves a little shorter; cauda with the usual six dorsal lobes, 

 these terminating in slender spines; at end of eighth sternite six large spines; dorsal spines 

 reduced to a single small pair, one near each lateral margin. 



Nepionotype Larch Meadows, Ithaca, New York, April 20, 1917. 



Neanotype. With type. 



Paratypes. Two pupae with type pupa. 



