468 PROCEEDINGS OF THE ACADEMY OF [Sept., 



incurved at the anterior end; scutum dull yellow, the lobes with 

 two dark brown spots on each; scutellum dull brownish yellow; 

 postnotum rather bright yellow with a broad median vitta, which is 

 widest in front, narrowed behind. Pleura yellow, the mesopleurites 

 suffused with brown on the ventral portions of the sclerites. Halteres 

 bro\\ii. Legs with the coxae yellowish brown; trochanters and 

 femora light brown; tibise and tarsi brown. Wings strongly tinged 

 with brown, the stigma long, brown, the veins dark brown. Vena- 

 tion as in Plate XVI, fig. 1. 



i\.bdominal tergites dull brownish yellow with a very broad blackish 

 median stripe, the lateral margins of the segments indistinctly black- 

 ened, the caudal margin very narrowly pale; eighth and ninth 

 tergites uniformly dark brown; sternites dull yellow, the segments 

 three to seven with a linear l)lack median mark, broadest basally; 

 the mark on the seventh segment short, occupying less than half the 

 length of the segment, the other marks long, occupying about three- 

 fourths the length of the segment; sternites eight and nine almost 

 uniformly brownish yellow. Male hypopygium with the ninth 

 tergite broad, having the caudal margin provided with a deep U- 

 shaped median notch, the lateral lobes broadly rounded. 



Habitat. — Northeastern United States. 



Holotype, cf, Halfway House, Mt. Washington, N. H.; July 6, 

 1914 (Johnson). 



Paratypes, 2 d^'s, topotypic; 3 cf's, Mt. Washington, N. H. 

 (Osten Sacken). 



The type is in the collection of the Boston Society of Natural 

 History; paratypes in the collection of the Museum of Comparative 

 Zoology and in the collection of the author. 



In its black thoracic stripes, penumbra agrees with vittida Loew, 

 pedunculata Loew and incurva Loew, all being forms with the wings 

 hyaline and not strongly infumed with brown as in penumbra. The 

 lateral prsescutal stripes are not incurved at the tip as in incurva 

 and there is no black spot between the bases of the antennae as in 

 pedunculata. 



TIPULA Linnffius. 



T-ipula Linnseus; Systema Natura, 10th edition, p. 585; 1758. 

 TRICHOTIPULA subgen. n. 



Similar to Tipula, s.s., the apical cells of the wings with abundant 

 short hairs. The coloration of the type-form is very similar to 

 species of the genus Oropeza Needham. 



Type. — Tipula (Trichotipula) oropezoides Johnson. 



