142 MAINE AGRICULTURAL EXPERIMENT STATION. I9IO. 



over half as long as the tibia. Wing hyaline, yellowish tinged, 

 veins yellowish brown; the subcostal crossvein is placed at the 

 base of the small cell, which is slightly shorter than broad; the 

 distance from the humeral crossvein to the subcostal crossvein 

 is about 1.25 times as great as from the latter to the tip of the 

 subcosta ; the cubitus forks sHghtly distad of the tip of the sub- 

 costa ; anal vein incomplete, delicate. Length of wing is 3 mm., 

 which is nearly three times as long as the fore tibia. Ithaca, 

 New York.; July. 



10. Sciophila pallipes Say. 



1824. pallipes, Say, Long's Exp. St. Peter's River. App. 361. 

 1878. pallipes, Osten Sacken, Catalog, of Diptera. (Lasiosoma) . 

 Male. Length 3.5 mm. Scape of the antennae, halteres, fe- 

 mora and tibiae yellow, tarsi brownish, remaining parts sub- 

 shining brownish black, body hairs yellow. Fore metatarsus 

 about 1-16 shorter, the second tarsal joint about 0.5, the wing 

 3 times as long as the tibia. Hypopygium is like that oi S. 

 novata but the dorsal lobe of each branch of the inferior forceps 

 has 2 slender blunt spines and 28 to 30 palmate spines. The 

 distance from the humeral crossvein to the crossvein is 1.6 

 times as great as from the latter to the tip of the subcosta; 

 the subcostal crossvein is situated near the base of the small 

 cell which is about as long as wide; petiole of the media is 

 shorter than the R-M crossvein ; the cubitus forks under or 

 slightly proximad of the tip of the subcosta; anal vein is stout 

 but incomplete. This species has been recorded by Say from' 

 the "Northwest Territory." My specimens were taken at Ith- 

 aca, New York, and Orono, Maine. The species has also been 

 recorded from New Hampshire. 



11. Sciophila similis n. sp. 



Female. Length 5 mm. ; wing 4.5 mm. Front and flagellum 

 of antenna brown; scape, face, proboscis and palpi yellow; 

 hairs yellow. Thorax yellow, without stripes; hairs yellow. 

 Abdomen with the basal half and the narrow apical margin of 

 each segment yellow, intervening space brown, hairs and ovi- 

 positor yellow. Legs yellow, tarsi shghtly darker; fore meta- 

 tarsus about 1-12 shorter than the tibia. The wing is less than 

 2.4 times as long as the fore tibia; yellowish hyaline; the dis- 

 tance from the humeral crossvein to the subcostal crossvein is 



