1888.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 615 



of the segment prominent; the 3d segment is also obliquely impressed, 

 the following segments smooth. 



Habitat. — Folsom, California. 



Described from a single specimen, labeled Folsom, Cal., July 1, 1885. 



Bracon montaiiensis n. sp. 



Female. — Length 7 nira ; ovipositor 3 mm . Yellowish red; the head, 

 antenna?, wings, tegula?, and legs, black. The head is smaller than in 

 the species just described; the inner orbits very narrowly yellowish, 

 dilated at base of antenna?, postorbital line broader; antenna? 48- 

 jointed; the shield at base of 2d abdominal segment is large, triangular, 

 the surface on each side wrinkled or rugose, the oblique lines not dis- 

 tinctly defined; the following segments all smooth, polished. 



Habitat. — Montana. 



Described from one specimen labeled Montana. 



This species in structure also approaches near to B. orbitalis, but its 

 smaller head, color, sculpture, and shorter ovipositor at once distin- 

 guish it. 

 Bracon alaskensis n. sp. 



Female. — Length 7 mm ; ovipositor 8 mm . An elongated form, the ab- 

 domen not much broader than the, thorax, almost linear, and subcom- 

 pressed along the venter. Head, thorax, legs, and ovipositor, black. 

 The head is very slightly broader than long; an indistinct postorbital 

 line, and a spot between the base of the antenna? and the eyes, red. The 

 submarginal ridge of the prothorax, blotch on upper and lower margin 

 of mesopleura, and dorsal surface of metathorax medially, red. Ab- 

 domen slightly longer than the head and thorax together, lemon-yellow; 

 the plate of the 1st segment narrow, the margins parallel, except just 

 at the base, with the usual longitudinal groove and keel on each side 

 of it; the shield of the 2d segment is long, narrow, triangular, extend- 

 ing almost to the apical margin, the segment without oblique grooves 

 laterally; the 3d segment is somewhat keeled or roof-shaped; the hypo- 

 pygium is long, sharp, plowshare-shaped, extending much beyond the 

 tip of the abdomen. Wings blackish hyaline; a pale line across 1st 

 submarginal cell, a spot back of 1st and another at apex of 2d cubital 

 cells; the 2d submarginal cell is long and narrow, twice as long as the 

 1st submarginal cell. 

 Habitat. — Fort Yukon, Alaska. 



Described from one specimen received from Mr. L. M. Turner; taken 

 ,a Fort Yukon, Alaska, in 1877. 

 It is very distinct from any described form in our fauna. 



Bracon Schwarzii n. sp. 



Female.— Length, 8f mm ; ovipositor, 10 mm . Yellowish-red; the an- 

 tenna?, eyes, ocelli, palpi, three terminal joints of anterior tarsi, middle 

 and posterior tarsi, wings, and ovipositor, black. The parapsidal 



