NO. 1866. NEW 8AWFLIE8 IN U. S. NATIONAL MUSEUM— ROHWER. 389 

 SELANDRIDEA VANDUZEEI, new species. 



Male. — Length 7 mm. Clypeus shallowly arcuately, emarginate, 

 the lobes broad, rounded; supraclypeal foveas deep, coimected with 

 the antennal fovese; middle fovea large, subquadrate; ocellar basin 

 large, well defined, triangular in outline; antennal furrows nearly- 

 complete; postocellar area well defined; the lateral ocelli on the 

 supraorbital line; antennae very robust, the third joint one-fourth 

 longer than the fourth; the third cubital cell a little longer than the 

 second; the transverse radius received in about the middle of the cell, 

 the transverse median well beyond the middle; the lanceolate cell of 

 the hind wings sessile; hypopygidium shallowly emarginate apically. 

 Reddish-brown; flagellum, head (except the clypeus, labrum and 

 mandibles), mesonotum, metanotum, mesopectus, and bases of the 

 hind coxae black; wings hyaline, iridescent, slightly yellowish; the 

 costa and stigma black, venation testaceous. 



Female. — Length 7.5 mm. Differs from the above description of 

 the male in the parted postocellar area, and the lower part of the 

 mesopleurae being black. Sheath slender, straight above, apex 

 broadly rounded. 



Buffalo, New York. A male and female collected by M. C. Van 

 Duzee, for whom the species is named, June 4, 1910. Also four males 

 from Canada without definite data. 



Type.—C&t. No. 13998, U.S.N.M. 



Genus NESOSELANDRIA Rohwer. 

 NESOSELANDRIA RUFONOTA, new species. 



Apparently related to Selandria crassa Cameron and Selandria 

 ruficollis Norton, but does not agree with the descriptions of either of 

 these. 



Male. — Length 5 mm. Supraclypeal foveas wanting; antennal 

 foveae hardly defined; supraclypeal area subconvex; middle fovea 

 very poorly defined, transverse, walls rounded; lateral foveae small, 

 punctiform; postocellar area hardly defined, lateral furrows puncti- 

 form; postocellar line subequal with the ocelloccipital and ocellocular 

 lines; stigma short, about two and one-half times as long as greatest 

 width, subangulate below; transverse radius a little beyond the 

 middle of cell; hypopygidium long, narrow, broadly rounded apically. 

 Black; clypeus, labrum, legs (except the infuscate posterior tibiae and 

 tarsi) brownish- white; pronotum, tegulae, first perapteron and meso- 

 scutum rufous. Wings uniformly brownish; venation black. 



Acapulco, Mexico. One male collected July 29, by F. Knab. 



TVpe.— Cat. No. 13999, U.S.N.M. 



