NO. 1794. HYMENOPTERA FROM FORMOSA— ROHWER. 483 



emarginate, the lobes narrow and acute; abdomen dorsally with 

 large, distinct punctures, closer on the first two segments; abdomen 

 ventrally wdth the apical and lateral margins punctured, the second 

 with some punctures basally. Black; most of the scape, broad stripes 

 on imier orbits to the antennae, line on metanotum (postscutellum 

 of authors), complete band on third segment, band on sixth dorsal 

 segment, a small spot at the base of the second dorsal segment, four 

 anterior tibiae and tarsi, basal half of posterior tibiae, and base of 

 post-basitarsis yellow; tegulae reddish yellow; wings dusky hyaline, 

 radial cell strongly dusky; venation brown. 



Tyjie-locality. — Horisha, Formosa. One male collected by Mr. T. 

 Fukai. 



Type.— Cat no. 13377, U.S.N.M. 



r 



Family LARRID^. 



LARRA SPARSA, new species. 



Seems to be related to Larra tisiphone (Smith), but is not that 

 species. 



Male. — Length about 9 mm. Anterior margin of the clj^peus 

 rounded anteriorly, without teeth; middle facial fovea large, shining 

 broader below; lateral facial ridges shining; depression from the 

 anterior ocellus strong; depression behind lateral ocelli narrow and 

 arcuate; space between the eyes at the vertex greater than the 

 length of the scape; first joint of flagellum shorter than the second, 

 second longer than third; frontal area with distinct, rather large, 

 and mostly separate punctures, on the crest, however, the punctures 

 are confluent; on the occiput the punctures are smaller and widely 

 separate; mesonotum with distinct, separate punctures; scutellum 

 with smaller punctures, not impressed; mesopleurae more finely 

 punctured than the mesonotum, the suture faintly foveolate; upper 

 surface of the propodeum transversely reticulate; posterior face 

 almost perpendicular, the furrow deep, striate medinally, punctured 

 laterally; sides with sparse, distinct punctures; legs very feebly 

 spined; second cubital cell narrower on the radius than the third; 

 abdomen dorsally with distinct, separate punctures, larger on the 

 apical segment; last ventral segment entire; inner spur of the pos- 

 terior tibiae much longer than the outer. Black; apical half of the 

 mandibles piceous; posterior part of the tegulae pale brown; anterior 

 tibiae and tarsi brown. Wings distinctly dusky, hyaline, iridescent; 

 venation dark brown to black. Face and thorax with sparse white 

 hair. 



Type-locality. — Horisha, Formosa. One male collected by Mr. T. 

 Fukai. 



Type.— Csit. no. 13378, U.S.N.M. 



