THE CRANE-FLIES OF NEW YORK PART II 903 



slightly flattened, with a row of circular breathing pores along margin of distal end, which 

 is slightly enlarged. Wing sheaths short. Leg sheaths much longer. 



Pleural region of abdominal segments with circular areas which are armed with abundant, 

 short, straight or slightly arcuated, rows of spicules, there being from five to seven spicules 

 in each row; under high magnification these appearing as flattened, scalelike tubercles, 

 fringed with the spicules described above; dorsum of intermediate abdominal segments 

 with a broad transverse band which is rather densely set with tiny, sharply curved spines; 

 on posterior segments these rows lacking or much weaker; dorsal bands lying posterior to 

 level of lateral areas. Male cauda (Plate LXII, 325) with dorsal plate rather small, each 

 half indistinctly bilobed at tip; outer lobe minutely tuberculate and with a small seta; 

 ventral lobes large, blunt at tips; eighth tergite on either side with a small tubercle bearing 

 two setae. 



Nepionotype. Ithaca, New York, May 14, 1917. 



Neanotype. Ithaca, May 26, 1917. Cast pupal skin; larva placed in rearing May 14 

 1917, emerged May 26, male. 



Paratypes. Larvae, with type larva. Pupae, taken as larvae May 27, 1917, placed in 

 rearing, emerged June 7, 1917. No. 79 - 1917. 



Genus Tricyphona Zetterstedt (Gr. three + bend) 



1837 Tricyphona Zett. Isis von Oken, p. 65. 



1856 Amalopis Hal. Ins. Brit., Dipt., vol. 3, p. 15. 



1856 Bophrosia Rond. Dipt. Ital. Prodr., vol. 1, p. 183. 



1860 Crunobia Kol. Wien. Ent. Monatschr., vol. 4, p. 391. 



1881 Nasiterna Wall. Ent. Tidskr., vol. 2, p. 179, 191. 



Larva. Body moderately elongate, with ventral transverse creeping- welts on basal annuli 

 of abdominal segments 4 to 7. Spiracular lobes two, moderately elongate. Anal gills four, 

 divided into two to four lobes by from one to three constrictions. Head capsule massive, 

 elongate. Eyespots distinct. Mandible powerful, ending in an acute point and with about 

 four lateral teeth. Maxilla stout, consisting of two distinct lobes, the slender inner lobe 

 closely approximated to the larger outer lobe. Antenna small; basal segment cylindrical 

 at tip, with two exceedingly long, hyaline papillae (possibly lacking in T. immaculata). 

 Hypopharynx labriform, anterior margin concave, roughened. Men turn completely divided, 

 anterior margin of each half with three large teeth. 



Pupa.- Pronotal breathing horns short and stout, blunt, angles rounded. Abdominal 

 segments with transverse bands of spicules on tergites and sternites, and circular areas 

 on pleurites. 



Tricyphona is the largest genus of the Pediciini, including more than 

 fifty described species. Almost all of these species are found in the 

 Holarctic region, but two or three are Antipodal. In the eastern United 

 States, Tricyphona inconstans is the most widely distributed and appar- 

 ently the commonest species. This species and certain others (as T. 

 paludicola Alex.) are characteristic swamp inhabitants, but other species 



