282 Mr. W. H. Ashniead's 



femora, except at apex, black or fuscoiis ; ovipositor the length 



of the abdomen 0-) U. balthazari, n. sp. 



Thorax, abdomen and legs honey-yellow, the head black ; plate 

 of first segment smooth, with a broad furrow along the sides, 

 and a prominent median carina at base, which becomes forked 

 near the middle of the segment. ... (2) IT. nigriceps, n. sp, 



3. All coxse, except sometimes the extreme base of the hind pair, 



2)ale or yellowish 5 



Hind coxse black 4 



All coxse black, or rarely with the front pair pale at apex. 

 Body wholly black, except sometimes the abdomen at base 

 beneath. 

 Plate of first segment sculptured, with a large, central, oval enclosure 

 which is transversely rugulose, the second segment scarcely two- 

 thirds the length of the third, almost smooth but with some 

 delicate aciculations ; legs brownish-yellow or ferruginous ; 

 ovipositor as long as the abdomen ; in (^ the second segment is 

 smooth, only about one-third the length of the third, while the 

 tips of the hind femora, tips of hind tibiae and the tarsi are 



fuscous (3) Z7. meridlonalis, n. sp. 



Plate of first segment smooth, shining, impunctate, but with a 

 delicately or distinctly impressed median groove posteriorly. 

 Second segment scarcely half as long as the third, polished ; 

 legs brownish-yellow, the hind femora, tips of hind tibiae and 

 their tarsi black or dark fuscous ; ovipositor a little longer 

 than the abdomen. Head and thorax closely, finely punctate ; 



length 2.5 mm (*i) f^- gi'enadensis, n. sp. 



Second segment fully two-thirds the length of the third, polished ; 

 legs red, all trochanters, the apex of hind femora, apex of hind 

 tibiae and their tarsi, except base of first joint, black or fuscous ; 

 head and thorax highly polished, impunctate, or at most 

 extremely sparsely and microscopically punctate ; stigma hyaline 

 within. Length 4-4'5 mm. 9 • • (5) U- disputabilis, n. sp. 



4. Plate of first segment smooth, or at most with some sparse 



punctures, with a median sulcus or furrow posteriorly, the 

 second segment about half the length of the third ; legs brown- 

 ish-yellow, the hind tarsi more or less fuscous ; wings hyaline, 

 the stigma and costac brown. ^ . . . (6) U. ndgarls, n. sp. 

 Plate of first segment rugulose, the second segment finely aciculated, 

 less than half the length of the third, with oblique, grooved 

 lines at sides ; the legs brownish-yellow, the hind femora, tibiae 

 and tarsi embrowned or fuscous, the tibiae with a pale annulus at 

 base ; ovipositor nearly as long as the abdomen ; stigma, costae 

 and the abscissa of radius brown. 9 • • C^) U- solitarius, n. sp. 



