THE CRANE-FLIES OF NEW YORK PART II 919 



Breathing horns reddish brown; thoracic dorsum green, with a brownish tinge; 

 .abdomen uniformly pale green, posterior half of each dorsal segment a little darker. 



Cephalic crest small and compact, consisting of two prominent but closely approximated 

 lobes which are separated by a deep U-shaped notch, the tips acute and directed forward; 

 on outer face before apex a short seta. Labrum broadly obtuse at tip. Labial lobes roughly 

 triangular, divergent. Maxillary palpi short and stout, narrowed toward tip. Antennal 

 sheaths with a slender tubercle at base above eye. 



Pronotal breathing horns broad at base, narrowed to the acute tip which is directed almost 

 ventrad; viewed from above, horns very broad basally and with a dorsal carina; ventral 

 side at base transversely wrinkled; a small setiferous lobe just in front of breathing horns, 

 directed laterad. Mesonotum behind breathing horns with a high compressed carina, on 

 either side of this produced into a lobe directed cephalad and laterad; mesonotum moderately 

 declivitous (Plate LXIX, 369) , at crest with numerous setiferous tubercles which are fewer 

 in number and more widely separated along shoulder. Leg sheaths reaching to about middle 

 of fourth abdominal segment; hind legs a little longer than fore legs; middle legs very short, 

 ending opposite base of last segment of fore legs. 



Abdominal segments divided into two narrow basal rings and a broad posterior ring; 

 on pleura a distinct spiracle, opposite posterior annulus and nearer dorsal margin; posterior 

 annulus, before caudal margin, with a dorsal and a ventral row of long, stout setae. Setae 

 on abdomen as follows: on pleura, a seta opposite second basal ring, a second ventrad of 

 spiracle, and two setae caudad of spiracle, the posterior one a little more dorsal in position; 

 on tergites, two stout setae lying transversely on the margin opposite spiracle, a third seta 

 at end of terminal rows of bristles; on sternites, a group of two transverse setae on posterior 

 ring, slightly below level of spiracle and rather widely separated by the broad midventral 

 area. Female cauda (Plate LXIX, 370) with dorsal acidothecae short, distinctly upturned, 

 and ending in a small, subacute tip; before apex with two very short setae; a short blunt 

 tubercle near base of valves; ventral lobes short, their tips very blunt; dorsum of segment 8 

 with two blunt median tubercles, one immediately behind the other. 



(Described from larvae taken in the Basin Swamp, Orono, Maine, June 13, 1913; one pupa 

 with the larva, July 5, 1913.) 



Erioptera vespertina O. S. 



1859 Erioptera vespertina O. S. Proc. Acad. Nat. Sci. Phila., p. 226. 

 Erioptera vespertina is a characteristic inhabitant of open swamps and 

 wet meadows. It has not been reared, but a pupa found in organic mud 

 in the Basin Swamp, Orono, Maine, on June 24, 1913, undoubtedly belongs 

 to this species. The associates are discussed under the account of Bittaco- 

 morpha davipes (page 785). 



Pupa. Length, 8.5 mm. 



Depth, d.-v., 1.1 mm. 



Breathing horns reddish brown; thoracic dorsum reddish brown, with an interrupted 

 whitish line running down posterior half of mesonotum; sheaths of wings and legs pale 



