1004 CHARLES PAUL ALEXANDER 



three setiferous spines on posterior ring, arranged transversely; spiracles very rudimentary, 

 opposite base of posterior ring; sternites with spines slightly more numerous and stouter; 

 near base of posterior ring two transverse spines on either side median line, the outermost 

 setiferous. Male cauda on dorsum with six lobes; the four posterior ones stout, with tips 

 spinous or those of ventral pair slightly bifid; the two anterior median lobes shorter and 

 more slender; eighth sternite with four large spines about equally spaced; eighth pleurite 

 with a large, powerful, acutely tipped lobe, and two or three smaller dorso-lateral spines 

 above base of middle pair of dorsal lobes. Female cauda almost the same as male cauda, 

 due to the blunt terebral sheaths of this species. 



Nepionotype. Ithaca, New York, March 30, 1917. 



Neanotype. With type larva. 



Paratypes. Numerous larvae and pupae, March 30 to April 18, 1917. 



Tipula nobilis (Loew) 



1864 Pachyrrhina nobilis Loew. Berl. Ent. Ztschr., vol. 8, p. 62. 



Larvae of Tipiula nobilis were found in wet moss and beneath decaying 

 witch-hazel leaves at Orono, Maine, on June 17, 1913. An adult emerged 

 on July 1. A fully grown pupa found on July 11 attempted to transform, 

 but died after two hours without being able to extricate itself from the 

 pupal case. 



The adults, which strikingly resemble some species of Nephrotoma, fly 

 somewhat later than does T. collaris, but both species may be taken 

 together in early June. 



T. nobilis is very similar in all respects to T. collaris. 



Larva. Length, 20 mm. 



Diameter, 2.9-3 mm. 



Coloration, reddish brown. 



Spiracular disk as in T. collaris, the brown lateral margin to the lobes a little paler. Anal 

 gills as shown in Plate XCII, 507. 



Head capsule almost as in T. collaris. Mentum with apical point elongate, with three 

 blunt teeth on either side. Hypopharynx with five moderately acute teeth. Antenna with 

 a blunt conical papilla, larger and more conspicuous than in T coUaris. Mandible with teeth 

 very blunt. 



Pupa. Length of cast pupal skin, about 18.5 mm. 



Pupa very similar to that of T. collaris. 



Nepionotype. Orono, Maine, June 19, 1913. No. 40-1913. 



Neanotype. With type. 



Tipula bella Loew 



1863 Tipula betta Loew. Berl. Ent. Ztechr., vol. 7, p. 291-292. 



