ART. 15». REVISION OF SUBFAMILY PLATYGASTERINAE FOUTS. 91 



Redescribed from the type specimen. This species in habitus recalls 

 certain ones of those in the group of Vancouver ensis and compressiven- 

 tris. The sculpture is entirely different however. 



56. PLATYG ASTER PENTATOMA (Ashmead), 



Anopedias pentatomm Ashmead, Bull. 45, U. S. Nat. Mus., 1893, p. 292. 



Female. — Length 0.7 mm. Head shaped somewhat as in longiven- 

 tris but not emarginate behind, a little over half as long as wide; occi- 

 put and cheeks convex, the former entirely, the latter posteriorly, 

 finely shagreened or aciculate; frons polished, convex, without sculp- 

 ture except around the bases of the antennae where it is finely aci- 

 culated; pedicel about one and one-half times as long as wide, much 

 wider than joint three which is as long as wide; joint four as wide 

 as three and very slightly longer than four; joints seven to nine about 

 as wide as long, as wide as the pedicel; ten two-thirds as VN^de as long, 

 convex dorsally, unsculptured except on pronotum laterally where it 

 is finely aciculate; notauli short, the median lobe sharply pointed 

 posteriorly; scutellum as in longiventris, but pubescent; abdomen ellip- 

 tical, slightly shorter than the head and thorax united, as wide as the 

 thorax, twice as long as wide, pointed apically; first tergite twice as 

 wide as long, not elevated anteriorly, the median area not well defined ; 

 second tergite indistinctly longer than wide, nearly twice as wide api- 

 cally as basally, the sides shghtly curved ; striae extending to the api- 

 ces of the foveae; area between the foveae with a few short carinae 

 and striae which do not extend beyond their apices ; last four segments 

 subequal in length, united half as long as the second; ovipositor ex- 

 serted for a short distance; wings hyalme, extending slightly beyond 

 the apex of the abdomen. Amber-colored; scape yellowish, tinged 

 with fuscous apically; joints two to six of antenna yellowish, the other 

 joints fuscous; legs entirely yellowish brown, darker on femora and 

 tibiae. 



Male.— Length 0.6 mm. Similar generally to the female; third 

 antennal joint a little wider than long, narrower than the fourth joint; 

 four as wide and as long as the pedicel, narrowed basally, produced 

 below at apex, the lower side straight; joints five to seven as long as 

 four, one and one-half times as long as wide; joints eight to ten lost; 

 abdomen elongate, elliptical, two and one-half times as long as wide, 

 as long as the head and thorax united, as wide as the thorax; wings 

 extending the length of the last four segments past the apex of the 

 abdomen. Appendages as a whole lighter col ored than in the female 

 mostly yellow; flagellum brownish. 



Type locality. — Arlington, Virginia. 



Type.— Cat. No. 24610, U.S.N .M. 



