NO. 2178. THE GENUS BRACON FABRICIUS— MORRISON. 327 



median longitudinal carinae converging steadily from behind for- 

 wards, and united by a number of prominent transverse carinae; 

 spiracles oval, the propodeum somewhat excavated behind them. 



Wings. — Dark fuhginous, venation normal, sometimes with traces 

 of a spur rmming out from the second transverse cubitus; length, 

 fore 8 mm., hind, 6.5 mm. 



Legs. — Fore and middle legs black, hind legs red except the basal 

 segment of the trochanters, the tarsi and the bases and apices of the 

 tibiae. Fore and middle tarsal claws cleft, hind long-toothed; hind 

 tibiae with two short, blunt spines outside at the apex. 



Abdomen. — Length, of 8 mm. specimen, 4 mm.; bright red, elon- 

 gate, slender, lanceolate, the first segment relatively stout, second 

 segment with a faint semicircular elevation at the base, the depression 

 mdicating the division between the second and third tergites very 

 indistinct; ovipositor red, sheaths black, length 3.5 mm. 



Male. — Appears to resemble the female in all essential structural 

 characters, including the number of antennal segments, although the 

 antennae are sometimes as low as 37-segmented; with a varying 

 amount of blackish diffusion over the dorsum of the abdomen in some 

 species, this near the middle or apex. Described from 29 females and 

 37 males whose collection records show that the species is common 

 from Montreal, Canada, to Virginia, along the Atlantic coast, and 

 thi'ough New York and Pennsylvania westward to Michigan and Illi- 

 nois, wliile there are isolated records from "S. D." (South Dakota), 

 Milwaukee, Wisconsin, Pyziton, Alabama, and Texas (BeKrage coll.). 



I have found this species labeled as Agathis or Cremnofs semi- 

 rubra BruUe in some collections, but it is obviously not that species, 

 the matter of length alone precluding such a possibility, as semi-rubra 

 is given as being 11 mm. long. 



Type.— C^i. No. 20483 U.S.N.M. 



BRACON KELLOGGn, new species. 



Size small, length 5^-6 mm. black, dorsum and a Httle of the upper 

 haK of mesopleurae and metapleurae, hind coxae and femora, and 

 abdomen, yellow-orange. 



Female. — Head. — Triangular, slightly higher than wide; length, 

 43+; width, 42.5; height of eye, 20+; malar space, 18; width be- 

 tween eyes, 25.5; width at bottom of face, 15; profile of face made 

 up of two very slight curves, the first running from the base of the 

 labrum to opposite the clypeal f oveae, the second curve running from 

 here to between the antennae; face with a short groove, deeper 

 above, between the antennal plates; antennal plates distinctly sep- 

 arated, but not very high or large; the ridge of the antennal fossae 

 almost uniform in height, a very little higher opposite the median 

 ocellus, continuous to the lateral oceUi; head black, shining, rather 



