The Crane-Flies of New York — Part II 



903 



slightly fiattoned, 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 spicul<-s 

 in each row; under high magnification these appearing as flattened, scalehke 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 spine^; 

 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 smal , 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. 



Nrmonotvve — Ithaca, New York, May 14, 1917. , ,. • at,„ii 



ivSC,^ Ithaca, May 2G, 1917. Cast pupal skin; larva placed m rearing May 14, 



''p;™S;r^Saef'wiTMype larva. Pupae, taken as larvae May 27, 1917, pLaeed in 

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



Genus Tricyphona Zetterstedt (Gr. three + hend) 



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



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



185G Bophrosia Rond. Dipt. Ital. Prodr., vol. 1, p. l«.i. 



I860 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 annul! 

 of abdominal segments 4 to 7. Spiracular lobes two, moderately elongate Ana g.Us 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 rnma^^data). 

 Hypopharynx labriform. anterior margin concave, roughened. Mentum completely divided, 

 anterior margin of each half with three large teeth. , , au^ • i 



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 Umted 

 States Tricvvhona incmistans is the most widely distributed and appar- 

 ently the commonest species. This species and certam others (as I. 

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



