88 PROCEEDINGS OF THE NATIONAL .MUSEUM. vol. 63. 



shorter than the head and thorax united, about twice as long as 

 wide, a little wider than the thorax; median area on first tergite 

 quadrate, sharply defined laterally, flattened; bas:d foveae on second 

 tergite rather short, with a few striae which extend shghtly beyond 

 their apices but do not reach the middle of the segment; a few short 

 striae between the foveae; apical segments not sculptured; wings 

 brownish, extending the length ol" the last four segments past the 

 apex of the abdomen. Black; antennae piceous, legs dark brownish. 



Male. — Length 1.3 mm. Antennae slender, all the joints longer 

 than wide; joint four nearly twice as long as wide, scarcely widened 

 apically, distinctly shorter than the two following joints united; joints 

 five to nine a little longer than wide, rounded at the ends; abdomen 

 spatulate, as wide as the thorax, a little less than twice as long as 

 wide, broadly rounded apically; wings brownish, extending the length 

 of the last five segments past the apex of the abdomen. 



Habitat. — United States. 



Type. — Cat. No. 25442. Two paratypes in Collection Fonts. 



Described from four females and one male, each bearing the label 

 "4^^,161 F 85." The labels are in Theodore Pegande's handwrit- 

 ing. No notes filed under this number can be found in the files 

 of the Bureau of Entomology, and it is therefore impossible to give 

 the locality and name of the host. 



53. PLATYGASTER LATICEPS (Ashmead). 



Polygnotus laticeps Ashmead, Bull. 45, U. S. Nat. Mus., 1893, p. 311. Male, not 

 female. 



Male. — Length L58 mm. Head a little more than twice as wide 

 as long, flattened in front and behind; frons rather strongly striate 

 (except medially), with straight carinae above the insertion of the 

 antennae ; ocelli large, the lateral ones placed halfway between the 

 eye margins and the anterior ocellus; occiput striate; antennae 

 rather elongate, the joints beyond the third longer than wide and 

 densely covered with short white hairs; pedicel twice as long as wide, 

 as long and as w4de as joint five; third joint as long as wide, as wide 

 as joint four, indistinctly wider than the pedicel; joint four twice as 

 long as wide, not or scarcely widened apically, about as long as the 

 pedicel; joints five to nine subequal, twice as long as wide, cylindri- 

 cal ; joint ten long, pointed, three times as long as wide ; thoracic ratio : 

 length 31 (0.69 mm.), width 22, height 24; mesonotum convex, shin- 

 ing, shagreened; notauli distinct to the middle of the mesonotum, 

 not posteriorly; median lobe of mesonotum truncate posteriorly, 

 nearly touching the scutellum; scutellum convex, polished above, 

 faintly shagreened laterally, with its dorsal plate turned up a little 

 apically, a condition found in a more advanced stage in Platygaster 

 liyalinipemiis Ashmead; abdomen a little longer and narrower than 



