36 



PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 71 



IDIOCENTRLS MIRLiS,new species 



Female. — Length 1.5 mm. Antennae about half as long as the 

 body; scape approxhnately three times as long as broad; pedicel 

 ovate, about one and one-half times as long as broad, much thicker 

 than the funicle; funicle 6-jointed, the joints cylindrical; first funicle 

 about as long as pedicel and approximately two-thirds as long as 

 thick; third to sLxth successively decreasing very slightly in length, 

 the sixth fully two-thirds as long as the second; club a little longer 

 than the two preceding joints combined, distinctly thicker than the 

 last funicle joint, with three subequal joints, the sutures not veiy dis- 



FlG. 3.— IDIOCENTRUS MIRUS OaHAN, ADULT FEMALE 



tinct. Head collapsed so that it is impossible to make out the char- 

 acters. Pronotum and mesoscutum faintly sculptured; scutellum 

 smooth; propodeum broad with distinct lateral folds but without a 

 median carina, and very faintly if at all sculptured; abdomen broadly 

 sessile, fully twice as long as thorax, compressed from the sides and 

 acute at apex; ovipositor sheaths about one-fifth as long as abdo- 

 men; forewings bare at base, the bare area extending nearly to mid- 

 dle of wing on the anterior margin and very slightly beyond apex of 

 venation on the posterior margin; apical half of wing with moderately 

 dense discal cilia; longest marginal cilia equal to a little less than 



