THE CRANE-FLIES OF NEW YORK PART II 947 



slightly raised, two narrow lines on front, meeting below at a very acute angle. Eyes large 

 in male, smaller in female, the front correspondingly narrowed or broadened. Labrum short, 

 subtriangular. Sheaths of labial lobes small, suboval, separated by tip of labrum. Sheatha 

 of maxillary palpi short, stout, straight. Antennal sheaths moderately long, extending to 

 just beyond wing base; basal segments prominent, indicated on sheath as prominent ele- 

 vations. Pronotal breathing horns short, blunt, anterior face closely applied to pronotum, 

 outer face free; at base a small rounded knob. Thorax very deep, precipitous, at crest 

 (Plate LXXIX, 429) armed with two strong curved hooks, one on either side of median line; 

 on shoulder laterad of these hooks^ two prominent flattened plates whose margins are 

 minutely serrated, the dorsal, or outer, plate being the larger and terminating in a large 

 curved hook. Wing sheaths moderately broad, ending just before tip of second abdominal 

 segment. Leg sheaths (Plate LXXIX, 430) long and slender, outer pair much the longest, 

 ending about opposite tip of fourth abdominal segment, middle pair the shortest. 

 Mesonotum with two strong setae. 



Abdominal segments divided into two annuli by an indistinct suture, anterior ring narrow; 

 anterior ring with a strong seta on pleural region; posterior ring with strong setae on dorsum 

 and sternum near caudal margin; three other setae on pleural region, two at about midlength 

 of segment, the third near base and more dorsal in position. Male cauda (Plate LXXIX, 

 431) suddenly narrowed, terminating in two blunt ventral lobes and two acutely pointed 

 dorsal lobes bent strongly dorsad at their tips and bearing a short seta in notch on inner face 

 before apex; near base of cauda, on dorsum, a broad transverse swelling terminating in two 

 widely separated, slender tubercles, immediately cephalad and laterad of which is a long seta; 

 three strong setae on either side near base of cauda; posterior margin of segment 7 with two 

 powerful, decussate setae on dorsum, and between them two small setae; another powerful 

 seta near pleural region, and just inside still another smaller seta. 



Nepionotype. Avalon, New Jersey, June 8, 1899. 

 Neanotype. With type, June 14, 1899. 

 Paratypes. One laf va and one pupa. 



Genus Cladura Osten Sacken (Gr. branch + tail) 



1859 Cladura O. S. Proc. Acad. Nat. Sci. Phila., p. 229. 



The genus Cladura includes six known species two from eastern North 

 America, one from western North America, and three from Japan. The 

 small Cladura delicatula Alex., of the mountainous regions of the north- 

 eastern United States, differs from the genotype, C. flavoferruginea O. S., 

 in several important respects and it is necessary to erect a new group to 

 receive it. This group may, for the present at least, be considered as a 

 subgenus of Cladura, and the name Neocladura (Gr. new + Cladura) is 

 proposed. Moreover, the genera Crypteria Bergr. and Pterochionea Alex, 

 are closely related to Cladura, and the entire group are almost certainly the 

 direct forbears of the subapterous genus Chionea Dalman. Neocladura 



