64 PROC. ENT. SOC. WASH., VOL. 22, NO. 4, APRIL, IQ2O 



to be described from North America having the peculiar process 

 on the propodeum. 



Family Scelionidae. 

 Hadronotus parkeri, new species. 



Runs in Brues' key to the species of Hadronotus (Bull. Wise. 

 Nat. Hist. Soc., vol. 8, No. 1, p. 47, 1910) to largi Ashmead, but 

 differs from that species in its darker coloration. The scape in 

 largi is entirely yellow, in parkeri, yellow only basally. 



Female. Length 0.8 to 1 mm. Head transverse, slightly wider than the 

 thorax but not as wide as the abdomen, excavated behind, the vertex sub- 

 acute; face finely striate, margined above, with a short, triangular projec- 

 tion extending over and between the base of the antennae; antennae 12- 

 jointed; scape as long as club but not as thick, curved outwardly; pedicel 

 as long as the next two joints united and inconspicuously thicker; third joint 

 of the same width as the next two, and as long as wide ; fourth, fifth, and sixth 

 antennal joints transverse, subequal in length and in width and all shorter 

 than the third; club 6-jointed; first club joint broadly transverse, wider than 

 the preceding funicle joints, button-shaped; second distinctly longer and 

 wider than the first; third of the same width as the next two, a little wider 

 than the second; fourth and fifth equal in length and width, as wide as the 

 third but a little longer; last joint as long as club joints one and two com- 

 bined, conical ; thorax rounded, much shorter than the abdomen, shagreened, 

 covered with short, recumbent white hairs; pronotum visible as a line from 

 above; mesonotum without furrows, shagreened; scutellum broadly trans- 

 verse, semicircular, the apical edge impunctate and separated off by a row 

 of punctures; postscutellum with a short triangular projection; propodeum 

 with an anterior transverse carina curving downward medially and laterally, 

 prominent at the angles but fading away in the middle; abdomen as long as 

 the head and thorax together, broadly oval, not much longer than wide; 

 first tergite over three times as wide as long, longitudinally striate, margined 

 anteriorly by a prominent curved carina; second tergite one-fourth longer 

 than the first, longitudinally striate on basal three-fourths and shagreened 

 apically; third tergite half as long as the second, and the next three sha- 

 greened ; wings tinged with fuscous. Black ; legs, except all coxae, trochanters, 

 and femora of front legs, brownish yellow; antennae piceous brown, the 

 antennal bulb, base of scape, and extreme apex of pedicel yellow; mandibles 

 yellow. 



Male. -Length 0.85 mm. Differs from the female in the structure of 

 the antennae. Antennae filiform, pedicel as long as last joint of antennae, 

 conical, rounded distally, as wide as the fourth joint; third joint oval, a 

 little thicker and shorter than the pedicel; fourth joint a little longer than 

 wide, about as long as third; fifth joint broadly transverse, much wider than 

 the third but no longer than the fourth; joints 6-11 transverse-quadrate, 



