NO. 20iir.. THE HRAVOMD Si] lU'AXJ ILY Ol'l IS AH —UAHAS . 87 



OPinS mSULARIS Ashmead. 

 Opms irmilaris Ashmead, Joum. Linn. Soc. Lond. Zool., vol. 25, 1894, p. 135. 

 Habitat. — St. Vincent. 

 Host. — Unknown. 



OPIUS EHRHORNI, new species. 



Female. — Length about 2 mm. Head transvei*se, polished, the 

 face shining with faint setigerous punctures; clypeus fully three times 

 as broad as long down the middle, its anterior margin straight and 

 separated from the mandibles by a very narrow transverse opening; 

 malar space very short, not equal to more than half the width of a 

 mandible at base; posterior orbits a little narrower than the width of 

 the eyes ; ocell-ocular line at least three times as long as the diameter 

 of an ocellus; mandibles with a distinct notch on the ventral margin 

 near the base; antennae inserted a little above the middle of the eyes, 

 23-jointed, the first flagellar joint slightly more than twice as long 

 as thick, following joints sub equal and a little less than twice as long 

 as thick; face with a median ridge; thorax polished; parapsidal 

 grooves absent except at the anterior lateral angles of the mesoscutum, 

 the mesoscutum without a median impression; mesopleurae smooth, 

 with a shallow smooth impression below the middle; propodeum 

 rugose; stigma of the forewing moderately broad; first abscissa of 

 radius equal to about half the width of stigma, arising much before 

 the middle of stigma; second radial abscissa nearly twice the length 

 of the first cubital crossvein ; third abscissa about equal to the second 

 abscissa and the second cubital crossvein combined, attaining the 

 wing margin far above the extreme wing-apex; recurrent nervure 

 joining the inner angle of the second cubital cell. Abdomen ovate, 

 about as long as the thorax, its first tergite rugose, slightly longer 

 than broad and a little wider at apex that at base; following tergites 

 smooth; ovipositor very slightly exserted. General color black; 

 mandibles, except apices, and the clypeus rugose; antennal scape 

 piceus, flagellum black; legs including all coxae reddish testaceous; 

 wings hyaline, the veins and stigma pale brownish; tegulae testaceous ; 

 abdomen beyond the first tergite reddish testaceous, more or less 

 mixed with blackish. 



Type-locality. — Mountain View, California. 



Type.— C&t. No. 19370, U.S.N.M. 



Host. — Unknown. 



One specimen bearing the above locality label and a second label 

 as follows: "Ehrhorn, Lot 2." 



OPIUS COMMODUS, new species. 



Male. — ^Length 1.5 to 1.75 mm. Head transverse, smooth; face 

 practically impunctate; malar space shorter than the width of man- 

 dible; rather broad opening between mandibles and clypeus; poste- 

 rior orbits rounded, about half the width of eye; ocell-ocular line 



