194 ME. W. H. ASHMEAD ON THE PARASITIC HYMENOPTEEA 



Sab. St. Vincent. 



Described from six specimens. 



DlSSOMPHALUS BISULCUS, Sp, n. 



c? . Length 2 millim. Black, shining ; prothorax very faintly 

 and finely punctulate ; metathorax very finely sculptured, the 

 apex of the dorsum nearly smooth, its base with traces of two or 

 three carinse ; sides and truncature bounded by a carina. Meso- 

 notum with two distinct furrows. Scutellum with a transverse 

 impressed line at base. Meso pleura with a crenate furrow 

 across the middle. Antennae 13 -jointed, fuscous, yellowish at 

 base, the pedicel longer than the first flagellar joint, the joints 

 beyond quadrate, a little longer towards the tip of the flagellum. 

 Wings hyaline, pubescent, the venation brown; the transverse 

 medial nervure is straight, the discoidal cell indistinct and in- 

 complete. Legs honey-yellow. Abdomen oblong-oval, smooth, 

 shining ; the two nipples on the second segment placed a little 

 below the middle and close together, almost touching each other. 



Hob. St. Vincent. 



Described from three specimens. 



DissoMPHALirs coKPUSUS, sp. n. 



(S . Length 1|- millim. Polished black, impunctured ; the 

 metathorax very faintly punctulate, with a delicate medial carina 

 towards base. Scape, pedicel, and legs honey-yellow or pale 

 brownish yellow, the flagellum fuscous. Antennae 13-jointed, 

 filiform, sub monili form, extending slightly behind the tegulae ;- 

 the scape is more than four times as long as the pedicel, curved, 

 and a little incrassated towards the tip ; pedicel twice as long 

 as the first funicle-joint ; the first funicle-joint is the smallest, 

 the following submoniliform, scarcely longer than thick. Pro- 

 thorax triangular, about as long as the mesonotum, the latter 

 with only slight traces of the parapsidal furrows anteriorly. 

 Scutellum with a transverse furrow at base. Mesopleura with 

 a curved furrow across the middle. "Wings hyaline, the venation, 

 brown, the transverse medial nervure nearly straight, being very 

 slightly curved inwardly at the apex or hind angle of the basal 

 cell. Abdomen oblong-oval, depressed, black, shining, subpetio- 

 late, the second segment not much longer than the third, with 

 the two nipples placed wide apart towards the lateral margins. 



Sab. St. Vincent. 



