CHALCID FLIES OF GENUS PERILAMPUS — SMULYAN 393 



coxae usually blackish, hind femora dark brown or black and usually 

 with a blue or green luster, anterior femora usually blackish brown 

 with a blue luster, anterior tibiae in large part pale brown or testaceous 

 and usually with a darker stripe above, intermediate tibiae darker 

 above, and posterior pair in part blackish brown \vith a blue or green 

 luster; tarsi testaceous or reddish testaceous; wings hyaline, veins as 

 a rule light brown or reddish brown. 



Male. — Length about 2.5-3.5 mm. Similar to female; part of 

 scape bearing sensorial punctures fairly broad apically and occupying 

 one-half or somewhat less than one-half of scape, the sensoria fairly 

 coarse and not very dense. 



r?/:pe.— U.S.N.M. DO. 18306. 



Redescribed from 15 females and 8 males, including type and 

 allotype. Eight specimens are in the United States National Museum 

 and 12 of the others in the Museum of Comparative Zoology. 



Distribution. — Pennsylvania (July); Maryland (July); Virginia 

 (June, July, Aug.); Louisiana; Minnesota (June); "Canada." 



Host. — Zenillia (Exorista) sp.; another record reads "reared with 

 Macremphytus" , but the host in this case was probably some parasite. 



PERILAMPUS CANADENSIS NITIDUS, new variety 



Female. — Length about 3-3.5 mm. Differs from canadensis 

 Crawford in the following respects: Head bright cupreous or with 

 the vertex and front between eye and scrobal cavity bright cupreous 

 and the temples and cheeks and more or less of the remainder of head 

 greeijish; antennal scape metallic (the flagellum missing); punctures 

 of thorax unusually deep and coarse, the interspaces more or less 

 cupreous, the bottoms of pits bluish; areas along inner margins of 

 parapsides bright cupreous; legs sometimes in part violaceous; abdo- 

 men sometimes green; mesoscutum usually markedly convex; angle 

 formed by front and vertex sometimes not well marked or sharp out- 

 side of ocellar region and emargination of frontovertex only moder- 

 ately wide; ocellocular area and front between eye and scrobal cavity 

 without large shallow pits or with such pits very faint; face along 

 malar furrow as a rule not conspicuously punctured; eyes sometimes 

 not reaching level of base of clypeus. 



Male. — Length about 2.5 mm. Similar to female except that 

 areas along inner margins of parapsides may be brassy green ; flagella 

 of antennae ferruginous or obscurely ferruginous. Part of scape 

 bearing sensorial punctures not greatly broadened apically and 

 occupying about one-third the length of the scape, sensoria rather 

 fine to fairly coarse. 



T7/pe.— U.S.N.M. no. 49784. 



Type locality. — New Jersey. 



48763—36 4 



