402 PROCEEDINGS OF THE NATIONAL MUSEUM vol 83 



PERILAMPUS FULVICORNIS Ashmead 



Perilampus fulvicornis Ashmead, Trans. Amer. Ent. Soc, vol. 13, p. 126, 1886. 



Female. — Length about 1.5-3.5 mm. Head: Frons without a 

 carina, meeting vertex in more or less of a curve although sometimes 

 with a semblance of a carina behind the anterior ocellus; front and 

 face completely or almost completely smooth except for hair punc- 

 tures; cheeks convexly rounded, rarely nearly straight; head in front 

 view transverse but sometimes only slightly so and very rarely 

 sub triangular; eyes about reaching level of base of clypeus (in males 

 sometimes reaching beyond). 



Thorax: Alore or less compact; area along inner margins of parap- 

 sides smooth or only finely sculptured; umbilicate punctures on 

 mesoscutum and scutellum angulated, rarely nearly round, the inter- 

 spaces thin and usually with distinct, fine, reticulate sculpture; ante- 

 rior edge of pronotum at lateral angles sharp, not depressed, the 

 punctate portion of pronotoprepectal area at dorsal margin occupy- 

 ing half or more than half the distance between anterior edge of 

 pronotum and the tegula of wing; axilla with a triangular or rouglily 

 triangular extension about as Avide as or wider than long on side of 

 scutellum, its base extending to about middle or above middle of 

 axilla, the face of axilla sloping toward base of extension and not 

 depressed or excavated above base of extension; basal shallow furrows 

 on underside of apex of scutellum turning caudad medially and 

 meeting on the median line in an acute or subacute angle; neck of 

 propodeum usually coarsely sculptured; wing hairs usually short. 



Abdomen: Posterior face usually wider than long or about as long 

 as wide, rarely considerably longer than wide (the longer-than-wide 

 type of abdomen more common among the males) ; first tergite petioli- 

 form, without an elevated anterior margin or flange and more or less 

 rugosely sculptured, rarely almost entirely smooth. 



Color: Black; head sometimes grayish, clypeus rarely bronzy or 

 cupreous ; punctate portion of notum of thorax sometimes bronzy and 

 area along inner margin of parapsides very rarely with a greenish 

 reflection; abdomen often with a greenish reflection beneatb ; flagellum 

 of antenna grayish dull dark brown to ferruginous and more or less 

 pale beneath, sometimes entirely ferruginous; scape blackish, some- 

 times with a greenish or cupreous tinge; femora brown to black, 

 often tinged with metallic, their apices usually testaceous or reddish 

 testaceous; tibiae brown to ferruginous, with more or less of apices 

 testaceous or reddish testaceous, the anterior pair sometimes entirely 

 testaceous and sometimes all of tibiae so, the posterior pair rarely 

 blackish and often more or less greenish; tarsi testaceous or reddish 

 testaceous; wings hyaline, veins pale testaceous to dark testaceous. 



Male. — Length about 1.5-3 mm. Similar to female; portion of 

 scape bearing sensorial punctures slightly broadened to quite broad 



