276 



M.forcipulus (O. S.)- Woodcrest Farm, June 17, in bogs. 



M. hirtipennis (O. S.). Bingham Falls, June 16-18; Mansfield, 

 2000 feet, June 24. 



M. pubipennis (O. S.). Waterbury R., near Stowe, June 16. 



M. quadrispinosus Alex. Smugglers Notch, June 16; Mans- 

 field, 3500 feet, June 16. 



Descriptions of New Species. 

 Tipula maritima, sp. nov. 



Allied to T. cunctans Say; antennae with the fiagellum bicolorous, yellow 

 and black; wings with a strong yellow suffusion, the costal margin more 

 brownish yellow, not contrasting markedly with the remainder of the ground- 

 color; male hypopygium with the median notch of the tergite narrowly U- 

 shaped; outer dististyle expanded at distal end, the apex obliquely truncated. 



Male. — Length about 13-15 mm.; wing 14-17 mm. 



Generally similar to T. cunctans. 



Antennal fiagellum bicolorous, the basal enlargement of the segments dark 

 brown, the remainder yellow. Head gray, median region of the vertex more 

 brownish gray. 



Mesonotal praescutum gray, the three praescutal stripes a trifle darker, 

 their edges faintly bordered by darker brown; posterior sclerites of mesonotum 

 gray, the scutellum more reddish gray with a barely indicated median line. 

 Pleura with the anepisternum dark gray, the sternopleurite more reddish 

 yellow, darkened ventrally, the posterior sclerites of pleura more brownish 

 yellow. Legs yellow, the tips of the femora and tibiae infuscated. Wings 

 with a strong yellow suffusion, the costal margin more brownish yellow, not 

 contrasting strongly with the remainder of the wing as is the case in cunctans, 

 obliterative areas conspicuous. 



Abdomen yellow, the tergites with a nearly continuous median black vitta 

 extending from tergite one through seven; outer sternites with a similar black 

 line; hypopygium pale. Male hypopygium relatively small. Ninth tergite 

 with a relatively deep U-shaped median notch, this much narrower than in 

 cunctans, the lateral margins narrowly blackened but nearly smooth. Outer 

 dististyle narrowed basally, the distal end expanded, the apex obliquely trun- 

 cated. Inner dististyle with the apical beak blackened, simple; blackened 

 flange on margin of blade smooth, in cunctans conspicuously serrulate. Mesal 

 margins of ninth sternite produced into a subtriangular pale blade. 



Habitat. — Massachusetts. 



H olotype. —Meile, Polpis, Nantucket Is., October 8, 1925 (W. S. Brooks). 



Paratopotypes. — Three males, October 1-8, 1925 (W. S. Brooks). 



Type. — In the collection of the Boston Society of Natural History. 



Tipula maritima is readily told from T. cunctans Say by the 

 bicolorous fiagellum, the strongly tinted wings with the costal 

 margin only slightly darkened, and the details of structure of 

 the male hypopygium. The present species serves to connect 



