26 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.60. 



tween ocelli not elevated ; clypeus coarsely punctate, with a reflexed 

 margin ; malar space longer than basal width of mandible ; antennae 

 barely as long as head anad thorax, 16-jointed. Thorax shining; 

 pronotiim coarsely punctate; mesoscutum obscurely and minutely 

 punctate, medially f oveatae-punctate ; scutellum not elevated at apex, 

 reticulate with two large more or less distinct foveae at apex, the 

 furrow quadrifoveate ; mesopleurum reticulate above and below, 

 polished in middle, the posterior groove foveolate; metapleuiiim and 

 propodeum reticulate, the latter divided into superior and posterior 

 faces by a prominent carina, the posterior face more finely sculptured 

 and with a median irregularly cordate area set off by a carina; legs 

 stout, the hind femur not reaching apex of abdomen ; radial cell acute 

 at apex. Abdomen longitudinally striate for about two-thirds its 

 length, the interspaces and the apex punctate, without tubercles at 

 apex. 



Black; front and middle legs, hind trochanters, and base of tibia 

 testaceous to ferruginous, hind legs otherwise black ; antennae basally 

 and mandibles ferruginous. 



Host. — Otidocephalus in Sycamore. 



Type locality. — Harrisburg, Pennsylvania. 



ry^e.— Cat.No. 24628, U.S.N.M. 



Since the above description, based on five males reared by A. B. 

 Champlain and J. N. Knull, of the Pennsylvania Bureau of Plant 

 Industry, Harrisburg, was set in type, nine additional males and 

 seven females have been received from Mr. Champlain. The female 

 differs in no important particular from the male. The ovipositor 

 extends beyond the apex of the abdomen a little more than a third 

 the length of the abdomen. 



Five paratypes are returned to the Pennsylvania Bureau of Plant 

 Industry, Harrisburg. 



UROSIGALPHUS PINI, new species. 



Closely allied to otidocephali Cushman, from which it may be dis- 

 tingushed at once by the red hind femora. 



Male. — Length, 3 mm. 



Compared with otidocephali it differs further as follows : Temples 

 nearly as wide as the eyes for a short distance ; scutellum more finely 

 sculptured, not bifoveate apically ; punctuation of mesopleurum finer 

 and more extensive, the speculum being reduced to a small subcircu- 

 lar area slightly cephaled of the middle ; radial cell obtuse at apex ; 

 longitudinal rugae of abdomen less prominent and more confused; 

 legs ferruginous, hind coxae, tibiae, and tarsi piceous. 



Type locality. — Patrick's Creek, California. 



Type.— C?ii. No. 24629, U.S.N.M. 



One specimen collected September 14, 1916, on Pi7ius attenuata by 

 J. E. Patterson. (Hopkins U. S. No. 14289f.) 



