THE CRANE-FLIES OF NEW YORK PART II 995 



ble slender, with only two teeth, a stout dorsal tooth and a single flattened ventral tooth. 

 Maxilla small, lobes covered with short, dense hairs. 



Pupa. Length, 32 mm. 



Width, d.-s., 5 mm. 

 Depth, d.-v., 5 mm. 



Color brown; flattened lateral margins of abdomen broadly yellowish. 



Thorax terete; abdomen depressed, with lateral margins flattened, carinate. Cephalic 

 crest represented by two low, parallel ridges, provided with one or two tiny setae. Lab rum 

 large, tumid, transversely wrinkled, the blunt apex completely separating the diamond- 

 shaped labial lobes. Maxillary palpi stout, extreme tip recurved. Antenna moderately 

 elongated, extending some distance beyond maxillary palpi. Pronotal breathing horns rather 

 short and stout, finely ringed, the rather long tips flattened, about equal to one-fifth length 

 of entire organ. Mesonotum convex (Plate XC, 497), with transverse anastomosing 

 wrinkles; on either side of median line behind, a blunt tubercle. Wing sheaths reaching end 

 of second abdominal segment. Leg sheaths extending just beyond base of fourth abdom- 

 inal segment; fore tarsi short, middle tarsi a little longer than hind tarsi. 



Abdominal segments with the usual basal and posterior rings; armature almost as in 

 Prionocera; tergites with posterior row of spines numbering between twenty and twenty- 

 four on intermediate segments, near anterior lateral angle two spines, basal ring unarmed; 

 pleurites with one setiferous spine on basal ring and two similar spines on posterior ring, 

 one placed considerably behind the other; sternites armed similarly to tergites, but the poste- 

 rior row of spines larger and somewhat fewer in number (fourteen to eighteen) ; posterior ring 

 on either side median line near base with two spines, the innermost very large and power- 

 ful. Male cauda with ventral lobes blunt, each armed with a slender black spine near pos- 

 terior margin; dorsal surface of cauda almost as in Prionocera, armed with six stout lobes, 

 which here are shorter and stouter, with tips abruptly narrowed; lateral margin of segment 

 8 with a stout lobe on either side, each terminating in a cylindrical spine. Female cauda 

 similar to male cauda, dorsum with the same six lobes; acidothecae short, tergal valves 

 slightly exceeding the more blunt sternal valves. ; 



Nepionotype. Stanford University, California, February 27, 1915. 



Neanotype. April 5, 1915. 



Paratypes. Larvae and pupae with types. 



Genus Prionocera Loew (Gr. saw + horn) 



1844 Prionocera Loew. Stett. Ent. Zeit., vol. 5, p. 170. 

 1863 Stygeropis Loew. Berl. Ent. Ztschr., vol. 7, p. 298. 



Larva. Spiracular disk surrounded by six long, finger-like lobes fringed with long, deli- 

 cate hairs; each lobe with a capillary black line down middle of inner face. Spiracles large. 

 Anal gills unbranched. Mentum seven- to nine-toothed. Hypopharynx five-toothed. 

 Mandible with about two dorsal and three ventral teeth. 



Pupa. Maxillary palpi recurved at tips. Pronotal breathing horns very elongated, 

 unequal, the longer one about half length of body; horns at tips split into long flaps. Abdom- 

 inal tergites with a posterior transverse row of fifteen or fewer spines, and two small spines 



