154 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



fourth distinctly longer than the fifth; eighth distinctly shorter than 

 the seventh beneath; mesoscutum uniformly reticulate, except along 

 the shining middle where there is a longitudinal furrow; scutellum 

 sliining, sparsely punctured except posteriorly the punctures are 

 confluent; venation strong; hypopygidium as in figure 6^. Black; 

 abdomen beyond the first segment red; apex of third, the fourth and 

 fifth and base of sixth antennal joints beneath, spot on apices of 

 femora above, and tibias beneath (except apices) white; tarsi rufo- 

 piceous; wings hyaline, strongly dusky in the radial and cubital 

 cells; venation dark brown. 



Male. — Length, 11 mm. Anterior margin of the clypeus nearly 

 straight, faintly sinuate laterally, not depressed; third antennal joint 

 subequal with the fourth and fifth, sixth longer than the seventh; 

 mesoscutum uniformly reticulate; otherwise as in female. Black; 

 abdomen beyond second segment red; third, fourth, and fifth anten- 

 nal joints beneath, a line following orbit from lower tubercule to cly- 

 peus, spot on malar space, spot at apex of terminal tergite, spot on 

 apices of femora above, tibisB externally yellow; tarsi rufo-ferru- 

 ginous ; wdngs hyaline, radial and cubital cells strongly dusky ; vena- 

 tion dark brown. 



Summerdale, CaUfornia. Four females and four males collected 

 from June 23 to July 7, 1906, by H. E. Burke on Ahies concolor. 



Type.— Csit. No. 14664, U.S.N.M. 



This species is closely related to occidentalis Cresson, but differs in 

 the shape of the hypopygidium. The male differs from Cresson's 

 description in the yeUow facial markings. 



A female from Hoquiam, Washington, collected May 29, 1905, by 

 H. E. Burke, probably belongs here. It has the second tergite 

 abnormal. The foveolate suture separating the propodeum from 

 the second tergite is broken and extends obliquely to the middle 

 basal margin of the third tergite. This makes the propodeum tri- 

 angularly produced posteriorly and reaching almost to the base of 

 the third tergite. 



ORYSSUS PINI, new species. 



Female. — ^Length, 15 mm. Anterior margin of the clypeus rounded 

 out, with a broad median and lateral notch; front below the oceUi 

 and posterior orbits irregularly reticulate; postocellar line slightly 

 longer than the intraorbital Ime ; lateral ocelli on a line drawn between 

 the third and fourth series of tubercules; second antennal joint less 

 than half the length of third, third joint longer than the fourth and 

 fifth, fifth about half the length of the fourth, seventh distinctly 

 longer than the eighth, mesoscutum reticulate in the middle with a 

 longitudinal raised area which has a longitudinal furrow; scutellum 

 shining, sparsely punctured; venation strong; hypopygidium as in 

 figure 6/. Black; abdomen beyond the second segment rufous; 

 third, fourth, fifth, and basal part of sixth antennal joints beneath, 



