OF THE ISLAND OF ST. VINCENT. 137 



middle. Thorax smooth, with distinct parapsidal furrows, the 

 scutellum with a crenate furrow across the base, a crenate furrow 

 on the mesopleura, and the metathorax rugose or areolated. 

 Legs yellowish white. "Wings hyaline, the venation brown, the 

 recurrent nervure interstitial. Abdomen oblong-ovate, smooth, 

 shining, tlie first segment the longest, striated. 



Sah. St. Vincent. 



Described from three specimens. 



DiACHASMA, Forster. 



DiACHASMA PILOSIPES, Sp. n. 



S ? . Length 2 millim. Pale honey-yellow ; the eyes large, 

 round, brown. Legs whitish, pilose. Thorax microscopically 

 shagreened, without furrows, the disk somewhat flat. Scutellum 

 with a fovea at base, the bottom with a central raised line. 

 Mesopleura smooth, without a furrow. Metathorax smooth, with 

 a central carina. Abdomen linear, smooth, the first segment the 

 longest. Wings hyaline, the venation pale or yellowish, the 

 recurrent nervure interstitial with the first transverse cubital 

 nervure. 



Hah. St. Vincent. 



Described from three specimens. 



Subfamily Altsin^. 



PHiENOCAEPA, Forster. 



Ph^nocaepa pleukalis, sp. n. 



2 . Length 1|- millim. Head, mesopleura, and disk of abdomen 

 black ; thorax and abdomen, with the exceptions noted, honey- 

 yellow ; legs white. Wings hyaline, the venation pale brown. 

 Metathorax areolated. First abdominal segment a little wider 

 than long, with two delicate carinas on disk ; rest of the abdomen 

 smooth, polished ; the ovipositor very short, scarcely projecting. 



Hob. St. Vincent. 



Described from a single specimen, having the antennae broken. 



Subfamily Aphidiin^. 



Ltsiphlebtjs, Forster. 

 Ltsiphlebtts meeidionaiis, sp. n. 



$ . Length 1|- millim. Black, polished ; legs, mandibles, and 

 petiole of abdomen pale brown. Antennae 13-jointed, black, the 



LINN. JOITEN. — ZOOLOaY, VOL. XXV. 11 



