772 MK. W. H. ASHMEAD — EEPOET ON THE PARASITIC [NoV. 1 9, 



(14) Hbxaplasta atriceps, Ashm. 



Ganaspis atriceps, Ashm. Journ. Linn. Soc, Zool. vol. xxv. 

 p. 67. 



This species, described from St. Vincent, belongs in reality to 

 this genus. It was placed in the genus Ganaspis on account of 

 having a closed marginal cell, since Forster described Hexaplasta 

 with an open marginal cell ; but the open or closed marginal cell 

 in this group is of little generic importance and we must depend 

 upon other characters for generic subdivision. These characters 

 I hope to clearly define in a publication upon which I am at 

 present engaged, and merely take this opportunity to place the 

 above species in its proper genus. 



(15) Hexaplasta etjtolatebalis, sp. n. 



2 • Length 1 to 1*1 mm. Polished black, the sides of thorax, 

 metanotum, and abdomen toward base beneath brown or brownish 

 piceous ; metapleura red ; antenoae, except last 5 joints which are 

 fuscous or black, and legs brownish yellow. 



Antennae 13-jointed ; joints 2-5 of funicle obconic, very little 

 longer than thick ; club-joints, except the last, not, or only a little, 

 longer than thick, the first the smallest, the following gradually 

 increasing in size, the last ovate and the largest joint. Scutellum 

 closely reticulately punctate ; the cup large, ovate, with a small 

 fovea posteriorly and 4 punctures anteriorly. Metapleura red or 

 reddish, bounded by a carina behind. Wings hyaline, ciliate, the 

 veins bi-own, the marginal cell closed, the second abscissa of radius 

 not quite one-half longer than the first, the latter slightly curved. 

 Abdomen with the woolly girdle at base entire, not interrupted 

 above. 



S . Length 1 mm. Antennae 15-jointed, brown, the three or 

 four basal joints yellowish ; the first joint of the flagellum is one- 

 third longer than the second, the third aud following joints hardly 

 longer than the second and nearly three times as long as thick ; 

 otherwise as in female. 



Chantilly, Balthazar (windward side), Mount Gay Estate, and 

 St. George's (leeward side). Described from nine female and 

 five male specimens. 



Comes nearest to H. instabilis and might easily be confused with 

 that species. The difference in the cup of the scutellum will, 

 however, readily distinguish it. 



(16) Hexaplasta BEtWNEiCLATATA, sp. n. 



y . Length 1*1 mm. Polished black ; sides of thorax, meta- 

 thorax, and abdomen, except the dorsum, brownish piceous ; 

 antennae, except the club which is brown, and legs yellow or 

 brownish yellow. 



Antennae 13-jointed, rather slender, nearly as long as the body; 

 joints 2-5 of funicle cylindric, about 3 times as loug as thick; 

 club-joints 2| times as long as thick. Scutellum finely rugose, the 



