OF THE ISLAND OF ST. YINCENT. Ill 



longer than the head and thorax together, the first segment the 

 longest, with a triangular raised shield posteriorly, the second 

 and following smooth, without shield ; the sutures are not deeply 

 incised. 



Sah. St. "Vincent. 



Descx'ibed from a single specimen, in poor condition. 



Beacon flatomactjlatus, sp. n. 



S $ . Length variable, from 3| millim. to 6 millim. ; ovipo- 

 sitor about one third the length of abdomen. Eufous ; head, 

 antennse, pronotum, pectus, and legs black ; in the male the 

 mesopleura are also black. The face, cheeks, pectus, and coxae 

 are covered with a whitish pubescence. Head subquadrate, 

 narrowed behind the eyes. Metapleura separated from the 

 dorsum of the metathorax by a furrow; the spiracles very 

 minute, round, situated at about the middle of the suture. 

 Abdomen ovate, the sutures deeply incised, the first segment 

 longer than the second, with crenate furrows laterally forming a 

 wedge-shaped shield ; the second segment with a triangular- 

 shaped shield at its basal middle, not entirely separated at its 

 apex from the surrounding surface ; on each side of this shield 

 are deep oblique fovese ; the third segment has oblique grooved 

 lines at its basal angles ; the fourth segment with a transverse 

 crenate furrow across the basal one-third. Wings black, the 

 stigma yellow ; the recurrent nervure is interstitial with the first 

 transverse cubital nervure ; the second abscissa of the radius is 

 about four times the length of the first, the second submarginal 

 cell therefore very long ; the third submarginal cell is only a 

 little longer than the second. 



Hob. St. Yincent. 



Described from one female and 17 male specimens. 



Beacon maculiceps, sp. n. 



$ . Length 3 millim. ; ovipositor half the length of the abdo- 

 men. E-ufous ; head above, antennse, wings, ovipositor, and legs 

 (except anterior pair, middle coxge, trochanters, tarsi, and second 

 joint of posterior trochanters and posterior knees) black. Abdo- 

 men ovate, the sutures not deeply incised ; the first segment 

 with a wedge-shaped shield, the second with a triangular raised 

 piece at the basal middle with a depression on each side of the 

 piece. "Wings dusky or black ; the second abscissa of radius is 



