THE TRIBE CHALCIDINI — BURKS 345 



llischosmioi'a kahlii Ashmead, Mem. Carnegie Mus., vol. 1, p. 251, 1904. — 

 ScHMiEDEKNECHT, Genera iusectorum, fasc. 97, p. 43, 1909. — Gahan and 

 Fagan, U. S. Nat. Mus. Bull. 124, p. 90, 1923. 



This species is most easily recognized by the large deep pits on the 

 dorsum of the thorax, the ventral tooth of the propodeum projecting 

 between the bases of the metacoxae, and the very long slender petiole, 

 with the basal flange wanting on the dorsal side, but present on the 

 ventral side. 



Description. — Yellowish red to dark brown, with variable dark- 

 brown or black markings, occasional specimens almost entirely with- 

 out darker markings; vertex and occiput of head, large mesal area 

 of mesopraescutum, all but lateral margins of lobes of mesoscutum, 

 anterior halves of axillae, mesal area of mesoscutellum, apices of 

 metacoxae, outer surface of metafemur except basal, apical, and 

 dorsal spots (fig. 12, 7n) , apex of petiole, and transverse dorsal stripes 

 on gaster, usually dark brown or black. 



Female : 4rA.5 mm. Apex of antennal scape just attaining level of 

 posterior ocelli; ring segment slightly less than one- fourth length 

 of segment 4, segments 4 to 13 almost equal in length, 12 and 13 

 often appearing subdivided; scrobe cavity smooth, margined by 

 distinct carinae, the carinae usually double on ventral half; frons 

 minutely shagreened, smooth dorsad of clypeus and between anterior 

 tentorial pits; combined widths of compound eyes equal to inter- 

 ocular space at level of antennal bases; both mandibles with three 

 approximately equal teeth; frontogenal suture straight; diameter 

 of posterior ocellus one-fourth width of interocellar space. 



Anterolateral angles of pronotum sharply produced, anterior dorsal 

 margin acarinate; maximum length of mesopraescutum as great as 

 width at widest point; dorsum of thorax coarsely and irregularly 

 punctate, provided with scattering short, white, appressed pubescence ; 

 an erect tuft of setae present on each axilla; metacoxae extremely 

 long, slender at apex, uniformly and minutely shagreened ; metafemur 

 elongate, outer surface slightly flattened, densely covered with short, 

 white pubescence; ventral margin with 13 to 16 teeth; small sharp 

 inner tooth present; metatibia with apex long, slender, lanceolate. 



Propodeum prominently carinate, a small, vertical lamina present 

 at apex on either side of point of insertion of petiole, a sharp, lateral 

 tooth present at each posterolateral angle of propodeum, and a ven- 

 tral projection extending between bases of metacoxae ; petiole as long 

 as metacoxa, surface usually shagreened, the petiole slightly enlarged 

 at apex; basal lamina of petiole present only on ventral and lateral 

 sides ; gaster slightly larger than metafemur, acuminate ; cerci round, 

 located midway between posterior and anterior margins of epipygium, 

 and placed in a slight depression; ovipositor sheaths provided with 

 minute apical setae. 



