G18 NKW SPECIES OF BRACONID.E. 



jointed, black; the first three joints of the flagellum are only a little 

 longer than wide and shorter than the following, the others being about 

 twice as wide; thorax smooth without parapsidal grooves and flat in 

 front of scutellnin, the latter suboonvex, elevated above the dorsal line 

 of the inesonotum, with a transverse groove at base, the groove puuc- 

 tate at bottom; metathorax with a red median carina, the rest of the 

 surface smooth and polished, black, pleura pubescent. Abdomen yel- 

 lowish red ; plate of 1st segment uarrowed at base, the lateral keels 

 distinct; 2d segment has a long, narrow, triangular shield medially, 

 extending from base to apex of segment, with lateral foveas or grooves; 

 the whole surface of these two segments is wrinkled, the following 

 segments smooth, polished; ovipositor yellowish, its sheaths black. 

 Wings black, stigma and veins brown; the recurrent nervure joins the 

 1st submarginal cell between the middle and the apex, the first trans- 

 verse cubital oblique, the 2d submarginal cell small, subtrapezoidal. 



Habitat. — Penacook, New Hampshire. 



Described from one specimen, reared August 19, 1886, from Pissodes 

 strobi, living in Norway spruce, sent to the Department by Mr. J. Whit- 

 aker, of Penacook, New Hampshire. 



Bracon bucculatricis a. sp. 



Male. — Length, l| ,nm . Honey-yellow; eyes, ocelli, lateral lobes of 

 thorax, and middle lobe anteriorly, black ; mesopleura, disk of meta- 

 thorax, and four apical abdominal segments dorsally, dusky or brown; 

 the abdomen is microscopically and delicately punctate. Wings hya- 

 line, veins pale brown; the 2d cubital cell is triangular; the recurrent 

 nervure is not interstitial, but joins the 1st submarginal cell just back 

 of the base of the 1st transverse cubital, the latter very oblique and 

 the 2d branch of the radius is much shorter than the 1st, making the 

 2d submarginal cell long, triangular. 



Habitat. — Washington, D. O. 



Described from one specimen, labeled "Parasite on Bucculatrix on 

 oak, June 10, 1886." 



The peculiar shape of the 2d cubital and the 2d submarginal cells at 

 once distinguishes this species from all others; and these peculiarities 

 will eventually necessitate the erection of a new genus for its reception. 



Bracon xanthonotus n. sp. 



Female. — Length, :>>■'»"; ovipositor, | mm . Black, the surface all gran- 

 ulated and more or less pubescent ; orbital lines, a spot on cheeks at 

 base of eyes, and a dilated spot below base of antennae, the legs, except-' 

 ing black coxa', and the dorsum of abdomen, excepting lateral margins, 

 yellow; the antenna- are 21-jointed, yellowish, more or less dusky 

 beyond apical half; abdomen ovate, the plate of 1st segment large, 

 trapezoidal, occupying most of its surface, black, the lateral margins oi 

 this segment alone being yellow; the 2d segment is more than twice as 

 wide as long and is slightly rugose on either side of a more or less dis- 



