744 MB. W. H. ASHMEAD — EEPOET ON THE PARASITIC [NoY. 19, 



yellowish ; mandibles blackish. Antennae 13-jointed, subclavate, 

 submoniliform, as long as the body, the third joint the longest, 

 about 1^ times as long as the fourth, subclavate, the following 

 joints very slightly increasing in width but very gradually de- 

 creasing in length, the three or four terminal joints being almost 

 moniliform and very little longer than thick, the last ovate, a little 

 longer and stouter than the penultimate ; the seven terminal joints 

 are all longitudinally striated. Thorax about twice as long as 

 wide and perfectly smooth; the parapsidal furrows start rather 

 close together from the anterior margin of the mesonotum, 

 gradually converge and form a narrow wedge-shaped elevation 

 or carina on its surface ; scutellum elevated, rugose, sparsely 

 pubescent, the cup large, oval, its entire disk excavated and with 

 a longitudinal grooved line at bottom, the margins piceous ; meta- 

 thorax roughened, with the pleura pubescent. Abdomen shorter 

 and much narrower tban the thorax, subcompressed, viewed from 

 the side squarely truncate at apex, the apical segments being 

 retracted. 



Mount Gay Estate. Described from one female specimen. 



DiGLTPHOSEMA, Porster. 



DiGLTPHOSEMA PLATiPES, Ashm. Journ. Linn. Soc, Zool. xxv. 

 p. 61. 



Mount Gay Estate. One female specimen. 



DiCEEATASPis, Ashm., gen. nov. 



Resembles Eexaplasta, Forster, but is at once separated from it 

 and allied genera by having no pubescent or striated girdle at base 

 of abdomen, and by having the rugose scutellum bidentate behind ; 

 i. e. each hind angle is produced into a prominent tooth or prong. 

 The cup is small, ovate, carinated anteriorly, with a fovea on the 

 disk ; the antennae are 13-jointed and terminate in an abrupt 6- 

 jointed club ; the marginal cell being open along the fore margin ; 

 while the metanotum is smooth with a median carina. 



Male unknown. 



DiCEEATASPis GEENADENSIS, Sp. n. 



§ . Length 1-1 mm. Polished black ; two basal joints of an- 

 tennae and the legs, including coxae, yellow, the rest of antennae 

 brownish piceous. Wings hyaline, the venation yellowish, the 

 marginal cell open along the fore margin,the second abscissa of radius 

 almost twice as long as the first. The first joint of the funicle is 

 about twice as long as thick, the others a little shorter, subequal, 

 the last being hardly longer than thick; club-joints, except the 

 last, submoniliform, about 1| times as long as thick, the last ovate ; 

 all club-joints faintly striated. 



Mount Gay Estate. Described from one female specimen. 



I have also examples of another undescribed species belonging to 

 this genus, collected by Mr. Herbert H. Smith in Brazil. 



