(322 NEW SPECIES OF BRACONID.E. 



grooves and posterior half of middle lobe of mesonotum, posterior an- 

 gles of prothorax, tegulap, the triangular piece beneath anterior wing, 

 mesopleura, except along the basal margin, metathorax and legs, in- 

 cluding coxsb, pale ferruginous ; metathorax smooth polished, excepting 

 a slight median keel connected with some slight wrinkles posteriorly; 

 abdomen ovate, delicately shagreened ; the plate of the 1st abdominal 

 segment trapezoidal, black, and connects with a black spot of the same 

 width on the 2d, which is itself connected with broader black bands on , 

 the 3d, 4th, and 5th segments, the lateral margins of the 1st and the 

 following segments all yellow ; ovipositor, black. Wings, dusky hya- 

 line, iridescent; veins and stigma, pale brown ; venation as in B: phy- 

 tic! is Riley. 



Habitat— Kirkwood, Missouri. 



Described from one specimen received from Miss Mary E. Murtfeldt, 

 of Kirkwood, Missouri, and labeled '< Parasite on Tortricid in seeds of 

 Ambrosia trijida, April 28, 1885." 



Bracon trifolii n. sp. 



Male.— Length, lf mni . Black, polished, with a fine, sparse, whitish 

 pubescence ; orbital line, lateral margins of 1st abdominal segment and h 

 the 2d, except a slight blotch medially at base, bright yellow; legs, 

 honey-yellow. The antenna- are long, 24-jointed, black, the flagellar 

 joints being slightly more than twice as long as wide. Parapsidal 

 grooves arc distinct, but not sharply defined or deep; the transverse; 

 groove at base of scutellum is small and not very deep; metathorax, 

 short, smooth; abdomen ovate, smooth, the plate on 1st segment dis- 

 tinct; convex posteriorly, smooth. Wings, hyaline, strongly iridescent; 

 the veins and stigma, pale brown; venation as in B. phyticUs Riley. 



Habitat.— Washington, D. C. 



Described from a single specimen, labeled No. 101°, and reared June* 

 30, 1871), from a Tineid living in the flower-heads of white clover. 



Bracon atricollis u. sp. 



_FV» m te.— Length, 4""" ; ovipositor, 2f mm . Brownish-yellow, smooth, 

 and polished; ocelli connected with a black spot iu front, tips of man- 

 dibles, antenna*,, collar, mesothoracic sutures, postscutellum, metathorax 

 excluding the metapleura, plate of 1st abdominal segment conforming- 

 to a quadrate spot on 2d, and dorsal blotches on the following segments,;] 

 and ovipositor, black. 1 



The face below the middle ocellus is microscopically shagreened; 

 parapsidal grooves distinct; the mesopleura' have a round fovea at the] 

 middle of the posterior margin ; metathorax finely rugose, pubescent, 

 with a short median keel anteriorly; abdomen long ovate, very slightly 

 longer than the head and thorax together, shagreened; plate of 1st 

 segment trapezoidal, the posterior portion convex ; legs long, slender 

 the posterior tibia? one-third longer than the middle pair, the posterioii 

 tarsi being almost as long as the tibia' ; apical tibial spurs short. Wings 



