1865.] 803 



or orange-yellow, valves black. Length 2| — o] lines ; expanse of wings 



5 — 'i lines 



Five specimens. Closely allied to the preceding species. The color 

 of the legs sometimes varies to entirely black ; in one specimen the 

 posterior femora is strongly tinged with rufous, and in another speci- 

 men all the femora, except tips, are honey-yellow. They may, however, 

 prove to be varieties of wniformis. 



8. Bracon xanthostigma. n. sp. 



Honey -yellow ; abdomen ochreous-yellow, broad-ovate: antenna, pleura be- 

 neath, metathorax. tarsi and spot on base of abdomen, black ; wings fuscous, 

 pale at tips, stigma large, ochreous-yellow. 



Female. — Head and thorax honey-yellow, shining, pubescent; face 

 yellowish ; tips of mandibles and the palpi dusky ; antennae nearly as 

 long as the body, entirely blackish. Thorax smooth and polished ; the 

 pleura beneath, between the four anterior legs, black; space on each 

 side of postscutellum and the metathorax above, black; tegulse honey- 

 yellow. Wings rather ample, deep yellowish-fuscous, the apical third 

 subhyaline, with a faint violet reflection ; nervures pale fuscous, stigma 

 large and ochreous-yellow. Legs honey-yellow ; all the tarsi and tips 

 of the posterior tibiae, blackish. Abdomen broad-ovate, opaque ochre- 

 ous-yellow. minutely sculptured; first segment excavated and subru- 

 gose, with a large blackish spot or circle on the disk ; ovipositor rather 

 longer than the body, honey-yellow, valves black. Length 2 J lines; 

 expanse of wings 5 lines. 



Four specimens. Readily distinguished by the short, robust form, 

 the coloration of the wings and the yellow stigma. 



Fam. CHALCIDIM1. 



Genus PERILAMPUS, Latr. 

 Perilampus platigaster, Say. 



Perilampus platigaster, Say, Bost. Jour. Nat. Hist, i, p. 274. 

 Two specimens. 



Fam. CHRYSIBID^E. 



Genus OMALUS, Tanz. 

 Omalus laeviventris, n. sp. 



Green, with a blue and purple reflection; head and thorax with large punc- 

 tures, disk of prothorax and mesothorax smooth; abdomen smooth and polished: 

 wings fusco-hyaline, hyaline at base. 



Dark green, changing to brilliant blue and purple; head with rather 

 large close punctures, indistinct on the occiput, which is strongly tinged 

 with blue and purple; tips of mandibles piceous; antennae dull brown- 

 black, basal joint green. Thorax with large, rather deep and close 



