476 PROCEEDINGS OF THE ACADEMY OF [Sept., 



nent; a narrow impressed median furrow which is lined with whitish. 

 Ninth pleurite complete, elongate oval, not in contact with the 

 tergite; outer appendage a short, cylindrical, rather stout, fleshy 

 lobe with rather numerous long hairs; inner appendage (see Plate 

 XXI, fig. 76) complex, a very compressed lobe which is notched on 

 its inner face and here heavily chitinized. Ninth sternite extensive, 

 gently concave beneath on the caudal margin; on either side just 

 ventrad of the pleurites with a large pale oval lobe which is densely 

 punctulate on the outer ventral half. The penis-guard (see Plate 

 XXI, fig. 75) is prominent, the tip a little expanded, consisting of a 

 rounded apical lobe subtended on either side by a sharp, chitinized 

 tooth. Eighth sternite almost straight across the caudal margin; 

 on either side a V-shaped group of stout, conspicuous hairs, there 

 being about 24-30 in each group. 



Habitat. — Northeastern United States and Canada. 



Holotype, cf, Mt. Desert Isle, Hancock Co., Me., August 31, 

 1913 (Alexander). 



Allotype, 9 , Fort Kent, Aroostook Co., Me., August 19, 1910 

 (Johnson) . 



Paratypes, No. 1, 2 cf 's, Ashland Junction, Aroostook Co., Me., 

 August 16, 1910 (Johnson); No. 3, cf 9 , Grand Lake, Newfound- 

 land, July 25, 1906 (Bryant); No. 5, d", no locality, labelled 

 ''Packard." 



Paratype No. 5 bears the manuscript name "Icevigata" in Loew's 

 script. 



The type and paratype No. 4 in the collection of the author; 

 the allotype and paratypes 1 to 3 in the collections of Mr. Johnson 

 and the Boston Society of Natural History; paratype No. 5 in the 

 Museum of Comparative Zoolog;^'. 



Tipula taughannock sp. n. 



Coloration grayish and yellow; antennae elongated in the male 

 sex, the three basal segments dull yellow, the flagellum unicolorous, 

 brown; thoracic dorsum yellowish with brown stripes; abdomen 

 yellow with l^rown markings; wdngs hyaline or nearly so; male 

 genitalia with the ninth tergite tumid, deeply notched; ninth pleurite 

 nearly complete. Female with the coloration dark brownish black; 

 wings uniformly brown; abdominal tergites with bright yellow 

 triangles. 



Male.- — Length, 15-17 mm.; wing, 15.5-15.8 mm.; antennae, 

 about 10 mm. Fore leg, femora, 8.3 mm.; tibiae 10.6 mm.; hind 

 leg, femora, 8.8 mm.; tibiae, 11.9 mm. 



