288 Mr. W. H. Aslimead's 



of first and second segments and the venter at sides towards base 

 pale, plate of the first segment narrowed towards apex, punctate, 

 the second segment less than one-half the length of the third, 

 with lateral oblique furrows. 



St. Vincent ; Grenada — Balthazar. Described from four 

 $ specimens. 



216. Urogaster xanthopus, n. sp, 



9 . Length 3 mm. ; ovipositor twu-thirds the length of the abdomen 

 or longer than half its length. Black, subopaque, finely, closely 

 punctate, pubescent, the scutellum highly polished, impunctate. 

 Face bare, closely punctate, without a facial ridge. Apex of 

 clypeus, mandibles and palpi pale. Antennte longer than the body, 

 brown-black, the two basal joints pale brownish-yellow. Tegulse 

 and basal part of costa yellowisli-white. Mesopleura foveated and 

 smooth and shining posteriorly, anteriorly closely, finely punctate. 

 Metathorax areolated, wrinkled but shining, the areola large, 

 rounded. Legs, including coxae, brownish-yellow. Wings hyaline, 

 iridescent, the costa and stigma rust-brown, the internal veins 

 paler ; the areolet is open behind, its petiole forming a curved 

 line with the transverse cubitus or the inner side of areolet ; the 

 submedian cell is like that of the previous species. Abdomen above 

 black, the lateral margins of first and second segments, a wedge- 

 shaped spot at sides of third, sometimes the suture between the 

 seventh and eighth segments, and the venter yellow ; the plate of 

 the first segment is as in the previous species but smooth, with a 

 central impressed line towards apex ; the second segment is about 

 half the length of the third, with lateral olAique furrows. 



St. Vincent. Described from two % specimens. 



217. Urogaster imitator, n. sp. 



$ . Length 2"5 mm. ; ovipositor scarcely half the length of the 

 abdomen. Thorax, abdomen and legs honey-yellow, the mesonotum 

 shining but sparsely puuctate ; head, except the face, black ; flagellum 

 brown, the scape and the pedicel pale. Wings hyaline, the 

 tegulai whitish, the stigmal and poststigmal vein brown, the 

 internal veins pallid. Metathorax areolated, finely rugulose, the 

 areola Iozenge-sha25ed. Abdomen a little longer than the thorax, the 

 ovipositor alone black, scarcely two-thirds the length of the 

 abdomen ; plate of first segment nearly thrice as long as wide, with 

 parallel sides, the surface fintly but distinctly sculptured ; second 



