OF THE ISLAND OP ST. TINCENT. 109 



5. Head, thorax, and legs black. 



Abdomen rufous, the sutures deeply incised; 



wings black, the stigma yellow, c? $ .... B. xanthospilus. 

 Abdomen piceous, the sutures not deeply incised; 



wings dusky, the stigma brown. $ B. niger. 



Abdomen yellow, the sutures not deeply incised ; 

 wings fuliginous, the stigma brown-black ; 



tarsi piceous. S S. seminiger. 



Head, pronotum, pectus, and legs black. 



Abdomen rufous; the sutures deeply incised; 



wings smoky, the stigma yellow, c? ? • • • • B. flavomaeulatus. 

 3. Head above black or piceous. 



Thorax, anterior and middle coxae and trochanters, 

 the second joint of the posterior trochanters, 

 posterior knees, and abdomen rufous. $ . . B. maculiceps. 

 Head not black. 



Rufous; wings black, with a streak in the first 

 submarginal cell and a spot behind the re- 

 current nervure white. Legs black, all coxse, 

 middle femora beneath and the posterior 



femora rufous, c? ? B.femoratus. 



Honej'^-yellow or pale ferruginous. 

 Wings subhyaline, iridescent ; legs entirely 

 pale ; no plate or foveolse on the second 



abdominal segment, c? § B. Sancti- Vincenti. 



Wings smoky or blackish ; tips of posterior 

 tibiae and tarsi black or fuscous; a plate and 

 foveolae on second abdominal segment, c? $ B. vulgaris. 



Beacon nigee, sp. n. 



d $ . Length 2| millim. to 3 millim ; ovipositor longer than 

 the abdomen. Black, shining, impunctured ; tlie female ab- 

 domen piceous. Palpi yellow. Antennae in female 33-jointed, 

 in male 29-jointed. Thorax with a middle lobe prominently 

 convex anteriorly, but without distinct furrows. Pleura and 

 metathorax smooth, polisbed, the metapleura with a spiracular 

 furrow. Wiugs dusky hyaline or blackish, the venation brown ; 

 the second abscissa of the radius is about two and a half times 

 as long as the first ; the second submarginal cell therefore very 

 long, or as long as the third along its upper margin and a little 

 longer along its lower margin ; the recurrent nervure not inter- 

 stitial, rejected, joining an angle in the first submarginal cell. 

 Abdomen smooth, shining ; the first segment is a little longer 

 than the second, with side furrows that converge at base and 



