[39 1 ] DIPTERA 5 



Necempheria kincaidi sp. nov. 



Head and its members black, second joint of antennae yellow, about 

 one-half as long as the third, the three ocelli in a transverse row and 

 widely separated from each other; thorax black, opaque, gray prui- 

 nose, the mesonotum marked with four polished vittae, scutellum black, 

 the base narrowly yellow, its hairs and those of the thorax golden yel- 

 low; abdomen brownish black, slightly polished, its hairs yellowish ; 

 coxae and femora yellow, tibiae yellowish brown, tarsi dark brown, 

 front tarsi toward their apices noticeably higher than wide ; halteres 

 yellow ; wings hyaline, bare, auxiliary vein ending in the first before 

 middle of inner submarginal cell, the latter about twice as long as 

 wide, anterior fork of fourth vein about ten times as long as preced- 

 ing section of this vein, fifth vein forking far before small crossvein, 

 the latter shorter than first section of third vein. Length 6 mm. A 

 female specimen, collected July 8. 



Habitat. Popof Island, Alaska. 



Type. Cat. no. 5191, U. S. National Museum. 



Readily distinguished by its venation from any of the described 

 species. Respectfully dedicated to Professor Trevor Kincaid, whose 

 extensive captures have added so much to our knowledge of the fauna 

 of this interesting region. 



Anaclinia nemoralis Meigen. 



Anaclinia nemoralis MEIGEN, System. Besch. Eur. Zweif. Ins., I, p. 265, 1818, 

 Sitka, Alaska: Two specimens, collected June 16. A European 

 species now for the first time reported from this country. 



Boletina grcenlandica Staeger. 



Boletina groenlandica STAEGER, Krqjer's Natur. Tidsskrift, p. 356, 1845. 



Berg Bay, June 10; Yakutat, June 21 ; Virgin Bay, June 26; Orca, 

 June 27; Popof Island, Alaska, July 12 : Six specimens. Originally 

 described from Greenland. Specimens are in the U. S. National 

 Museum from the mountains of New Hampshire and Colorado. 



Boletina inops sp. nov. 



Black, the second joint of antennae and base of the third, the palpi, 

 halteres, coxse, femora, and male hypopygium yellow, tibiae brownish 

 yellow ; hairs of body yellow ; thorax subopaque, thinly gray pruinose ; 

 abdomen subopaque; bristles of inner side of middle tibiae slightly 

 shorter than the diameter of each tibia; wings hyaline, tip of auxiliary 

 vein slightly before base of third vein, no auxiliary crossvein, fourth 

 vein forking slightly beyond, the fifth about opposite to, base of third 



