408 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.41. 



Genus APHILODYCTIUM Ashmead. 



APHILODYCTroM MACULATTJM, new species. 



Female. — Length 8 mm. Close to multicolor (Norton), but may- 

 be separated as follows: Middle fovea sharply defined beneath and 

 laterally; spot on the mesoepisternum small; posterior femora 

 brownish. 



Nevada, one female. 



Type.— Cat. No. 12813, U.S.N.M. 



APHILODYCTIUM MULTICOLOR ERYTHROGASTRUM, new subspecies. 



Female. — Length 6.5 mm. Differs from multicolor multicolor in 

 the orbits being entirely yellow, and the abdomen beyond the basal 

 plates rufous. 



Male. — Length 6 mm. Differs from the typical form as the female. 



Westville, New Jersey, June 6, 1897; Long Island, New York; 

 Great Falls, Virginia, June 12 (N. Banks); Falls Church, Virginia, 

 June 4 (N. Banks); Maryland; North fork of Swannanoa River, 

 Black Mountains, North Carolina; many males and females taken 

 by N. Banks flying around Betula. 



Type.— Cat. No. 12814, U.S.N.M. 



Some of the males from North Carolina have the middle of the 

 tergum with a black line. 



APHILODYCTIUM RUBRIPES NIGRITARSIS, new variety. 



Differs from the typical form by the entirely black four. posterior 

 tarsi. It is also somewhat more slender. There is a superficial 

 resemblance to Ametastegia glahrata (Fallen). 



Steamboat Springs, Colorado. One female and five males col- 

 lected May 27, 1910, by T. D. A. Cockerell. Also one female and three 

 males from Colorado, with no definite locality. It may be that this 

 variety will be found only in western Colorado. 



Type.— Cat. No. 13982, U.S.N.M. 



Genus PERINEURA Hartig. 



PERINEURA TURBATA, new species. 



Antennae with an annulus; abdomen and legs rufous; head and 

 most of the thorax black. 



Female. — Length 8 mm. Labrum acutely rounded; clypeus deeply > 

 narrowly arculately emarginate; surface granular; head rather coarsely 

 granulato-reticulate ; posterior orbits and occiput carinated; frons 

 indicated below as in ruhi (Panzer); pentagonal area only indicated; 

 postocellar area poorly defined anteriorly, at least twice as wide as 

 the cephal-caudad length; postocellar line shorter than the ocelloc- 

 cipital line; pedicellum angular, the length and width subequal; 



