536 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. 93 



wing acute, fringe at posterior margin almost as wide as wing at 

 hamuli. Mesoscutellum two and one-half times as long as propodeum 

 at meson, and mesal lengths of metanotum and propodeum equal; 

 surface of propodeum slightly shagreened, paraspiracular carinae pres- 

 ent; propodeal spiracles nearly touching anterior margin; gaster one 

 and three-fourth times as long as thorax. 



Male. — Unknown. 



Type locality. — Glenn Dale, Md. 



Types.— U.S.N.M. No. 19915. 



Host. — Unknown. 



Distribution. — Maryland. 



Ri marks. — This species is known only from the unique type; addi- 

 tional material will very likely show variation in the color of the 

 legs and abdomen. 



TETRASTICHUS ULYSSES (Girault) 



Apvostocetus ulysses Girault, Bull. Brooklyn Ent. Soc, vol. 11, p. 112, 1916. 



Head and thorax dark brown, almost black, faintly iridescent 

 under strong light, abdomen almost entirely white, brown at dorso- 

 lateral margins ; legs, except bases of coxae, white. 



Female. — Length, 1.2 mm. Pedicel equal in length to first funicle 

 segment, second slightly longer than first, club slightly longer than 

 second and third funicle segments combined. Mesopraescutum one 

 and one-half times as wide as long and bearing one bristle at each 

 lateral margin; submarginal vein of forewing with one dorsal bristle; 

 apex of hindwing acute, fringe at posterior margin almost as wide as 

 wing at hamuli. Mesal length of propodeum two-fifths length of 

 mesoscutellum, mesal length of propodeum and metanotum equal; 

 surface of propodeum faintly shagreened, paraspiracular carinae 

 present; propodeal spiracles almost touching anterior margin; gaster 

 one and one-half times as long as thorax. 



Male. — Unknown. 



Type locality. — Glenn Dale, Md. 



Types. — U.S.N.M. No. 20445. (Specimens distorted and broken.) 



Host. — Unknown. 



I) is t rib u tion. — Mary 1 a n d . 



Remarks. — This species is known only from the two type speci- 

 mens, and these specimens are in such poor condition that positive 

 assignment of this specific name is difficult. More material might 

 show this species to be the same as ainsliei Gahan. 



TETRASTICHUS SEMILONGIFASCIATUS (Girault), new combination 



Neomphaloidella semilonffifasciatus Girault, Societas Entoinologlca, vol. 31, p. 

 35, 1916. 



