250 PROCEEDINGS OF THE NATIONAL. MUSEUM vol.88 



Type locality. — California. 



Types. — Holotype, female, Mojave, Calif., April 26, 1936, E. G. 

 Linsley; allotype, male, Tehachapi, Calif., August 3, 1897, C. F. 

 Baker; paratypes, California, 2 males, southern California, 1 male. 

 Holotype and allotype deposited in the U. S. National Museum, para- 

 types in the Academy of Natural Sciences of Philadelphia. 



Host. — Unknown. 



CHALCIS MEGALOMIS. new species 



Figure 11, ; 



This species is closely related to Chalcis divisa (Walker) but is 

 most readily distinguished by the wider malar space, shorter petiole, 

 and the completely black dorsum of the thorax. 



Description. — Black; two small spots on frons near bases of an- 

 tennae, base of metafemur, and petiole, yellow; protibiae and meso- 

 tibiae and all tarsi, wings, and gaster, brown. 



Female : 5-8 mm. Antennae inserted slightly ventrad of center of 

 frons, scape exceeding, by one-fourth its length, level of posterior 

 ocelli, ring segment less than one-half length of pedicel, segment 4 

 one-eighth longer than 5, segments 5 to 7 equal, following ones 

 shorter, except 13, which equals length of 7; a series of parallel 

 transverse ridges present in scrobe cavity just ventral to anterior 

 ocellus ; a prominent transverse carina present on frons just ventrad 

 of antennal bases; malar space two-thirds height of compound eye; 

 frontogenal suture obliterated; left mandible with one large acute 

 dorsal tooth and one blunt ventral tooth, right mandible with three 

 nearly equal rounded teeth; diameter of posterior ocellus slightly 

 less than one-half width of interocellar space. 



Dorsum of thorax covered by fine, decumbent pubescence, setae 

 dense at posterolateral angles of pronotum ; punctation coarse, deep ; 

 parapsidal grooves distinct; prepectus narrow, extending almost to 

 tegula; mesotibial spur small; apex of mesoscutellum provided with 

 a narrow, mesally emarginate lamina; metacoxae very slightly 

 flattened on outer dorsal side at apex, pubescence dense, short ; meta- 

 femur densely covered by short pubescence, ventral margin with 10 

 or 11 teeth, outer basal one three times as large as any others (fig. 

 11, j) ; inner tooth lacking ; apex of metatibia long, sharp ; apex of 

 last segment of posterior tarsus with two long dorsal and two shorter 

 lateral setae; claw long, with a very small, blunt inner tooth, basal 

 enlargement without teeth or spines, but with several long setae. 



Propodeum conspicuously carinate over entire surface; spiracular 

 openings vertical; petiole glabrous, two-thirds length of metacoxa, 

 a pair of small lateral projections present on each side near base; 

 gaster usually slightly shorter than metafemur; third abdominal 



