570 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.54. 



HORMIOPTERUS CHOENOBIVORUS, new species. 



The sculpture of the second tergite readily differentiates this spe- 

 cies from all other species of this genus, which are in the United 

 States National Museum collection. This is the first species of this 

 genus from the East Indies and does not seem to be closely allied to 

 any of the described forms. 



Female. — Length, 3.5 mm. Length of ovipositor, 1.25 mm. Face 

 shining, practically without sculpture, the lateral margin with a 

 number of long, pale hairs; frons irregular reticulate; vertex and 

 posterior orbits shining, very finely granular; ocelli arranged in 

 nearly an equilateral triangle; mesocutum and prescutum opaque, 

 closely granular ; notauli complete and without distinct f oveolations ; 

 prescutum posteriorly and the scutum on the posterior middle with 

 a few large irregular punctures ; the suture in front of the scutellum 

 with a few rugae; scutellum opaque; propodeum granular, the mid- 

 dle areas somewhat shining, the posterior face coarsely reticulate, the 

 carinae sharply defined, the median one two-thirds the length of 

 the lateral ones, due to the deep V n^ade by the transverse carinae; 

 abdomen shining, the first, second, and third segments with regular 

 well-defined longitudinal striae, the base of the fourth segment with a 

 few irregular striae, the apical margin of the second and third nar- 

 rowly, most of the fourth and all of the following smooth and without 

 sculpture ; the second tergite with a median more more or less lens- 

 shaped area defined by foveolate furrows (this area is not quite as 

 heavily striate) ; radius leaving the stigma at the middle; first 

 abscissa one-fifth shorter than the first intercubitus ; second abscissa 

 but very little shorter than the first intercubitus; recurrent slightly 

 beyond first intercubitus. Brownish yellow; head posteriorly and 

 dorsally, mesoscutum, prescutum, and propodeum (medianly) brown- 

 ish; legs pale yellow; wings hyaline, iridescent, venation including 

 the stigma yellowish. 



Type-locality. — Buitenzorg, Java. 



Described from one female reared from pupa of ChoenoMus bi- 

 punctifera by K. W. Dammerman under his number 417. 



Type.—C2it. No. 21501, U.S.N.M. 



