224 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 57. 



margins converging below; face in the middle yellow; first tergite one- 

 half as wide as long; color of legs different. 



Female. — Length, 4 mm. Head opaque, finely granular; posto- 

 cellar line slightly shorter than the ocellocular line ; inner margins of 

 the eyes distinctly converging below; length of the eyes subequal 

 with the width of the face below the antennae; apical margin of the 

 clypeus rounded, very slightly depressed; thorax shining, practically 

 impunctate; propodeum shining, \\'ith irregular puncturation along 

 the dorsal carinae; tergites shining. Black; mandibles except apices, 

 clypeus, a large spot in the middle of the face, apex of the scape 

 beneath, tegulae, a spot before, the narrow apical margins of tergites 

 2 and 3, yellow; posterior coxae the apices of the first trochanter, 

 apical third of the posterior tibiae, posterior tarsi except a narrow 

 ring at the base, black; wings hyaline, iridescent, vanetion pale brown; 

 costa and stigma slightly darker. 



Type locality. — Wenatchee, Washington. Described from one fe- 

 male reared April 24, 1915, as a parasite of GymnonycJius calif ornicus 

 Marlatt by E. J. Newcomer, and reported under Bureau of Entomol- 

 ogy No. Quaintance 11416. 



Type.— Cat. No. 21641, U.S.N.M. 



Genus EXENTERUS Hartig. 



An examination of the species placed by Davis ^ in the genus Picro- 

 scopus and a comparison of them mth the genotype of Exenterus 

 shows that they more properly belong to Exenterus. The -writer is of 

 the opinion that, if the characters offered in the tables to separate 

 Picroscopus from Exenterus are the only differences, the genus Picro- 

 scopus should be suppressed and considered as a synonym of Exen- 

 terus Hartig. 



The American representatives of the genus Exenterus make two 

 well defined groups. The first group is represented by a single species, 

 lopliyn Viereck; the second contains the rest of the American species 

 all of which are closely allied. Exenterus Jiullensis Provancher is not 

 represented in the United States National Museum collection and is 

 not included in the following table. When examining the type of 

 this species I stated that the claws were not at all pectmate and that it 

 would run to the genus Anecphysis in both Ashmcad's and Davis' 

 tables. An examination of the genotype of AnecpTiysis shows that 

 Jiullensis does not belong there, and since all other characters agree 

 very closely with Exenterus it is believed that the observation on the 

 claws may be an error and that there are a few short teeth at the base, 

 according to the notes and the original description of Jiullensis it may 

 be separated from the other American species by the oblique depres- 

 sions on the second tergite. 



iTrans. Amcr. Ent. Soc, vol. 24, 1917, p. 229. 



