The Crane-Flies of New York — Part II 855 



can be found in myriads by sweeping the rank herbage in May. Tlie 

 writer has never located the immature stages, but the species was reared 

 by Dr. J. G. Needham at Ithaca, New York, on May 20, 1898. There 

 is no record as to where these larvae occurred, l)ut they are presumably 

 mud-inhaliiting forms, or possibly they frequent hal:»itats similar to those 

 descril)ed for the two preceding species. 



Pupa. — Length of cast skin, about 12 mm. 



Pronotal breathing homs (Plate XLI, 187) short, cylindrical, the tips scarcely enlarged. 

 IMesonotum behind with a prominent rounded tubercle on either side of median line, which 

 is set with two spines, a larger outer spine and a small inner spine. Wing sheaths ending 

 opposite apex of second abdominal segment. Leg sheaths ending opposite apex of third 

 abdominal segment, the tarsal sheaths terminating on a common level. 



Abdominal segments divided into two rings. Tergites with posterior ring having a 

 transverse row of elongate tubercles, there being about eight on segment 2, about six on 

 intermediate segments (3 to 5), and about four on segments 6 and 7; these tubercles fleshy, 

 but sparsely armed with chitinized spines. Basal ring unarmed. Pleura with a strong 

 tubercle on each ring; a blunt but prominent spiracle at extreme base of posterior ring; this 

 spiracle very prominent on segment 2 (Plate XLI, 188), much exceeding lateral tubercles 

 and being about two-fifths length of pronotal breathing horns. Sternites with about six 

 tubercles on posterior ring. Male cauda (Plate XLI, 189) with tergal lobes slender, running 

 out into acute chitinized points, which are directed caudad, slightly divergent; dorsum of 

 segment 8 with posterior lobes powerful, about equal in size to, or a httle larger than, tergal 

 lobes of cauda just described; anterior lobes small, directed caudad and laterad; two large 

 lateral lobes and two smaller ventral lobes. Female cauda with tergal valves moderately 

 elongate, stout, broad at base, narrowed toward tip, where they run out into long,. chitinized 

 points directed caudad and slightly dorsad. 



Neanotype. — Cast pupal skin, Ithaca, New York, May 20, 1898. 

 Paratype. — Pupae, cast skins, with type. 



Dactylolabis montana (0. S.) 



1859 Limnophila montana 0. S. Proc. Acad. Nat. Sci. Phila., p. 240."- 



The species Dactylolabis montana is common and widely distributed 

 thruout the northern United States. It is a characteristic inhabitant of 

 rocky cliffs, where it rests in crevices on the almost vertical walls. The 

 immature stages have long remained unknown, but during the spring 

 of 1920 W. L. McAtee found a pupal skin and the teneral adult near 

 Washington, D. C. Mr. McAtee writes that the pupa was found in the 

 moss that covers the almost vertical north faca of a cliff on Plummers 

 Island; this moss is mostly shaded, and grows on a thin layer of black soil 

 which, at that time of the year at least, is saturated with water. The 



