OF THE ISLAND OF ST. TINCENT. 113 



is smooth, stiaing, impunctured, and the venation of the wings 

 is identical. The second abdominal segment, however, has a 

 subtriangular shield at its basal middle, which is not entirely 

 separated at apex from the surrounding surface ; there are also 

 two shallow oblique lines on each side of the shield. 



Hob. St. Vincent. 



Described from many individuals of both sexes. 



This species varies greatly in size, in the colour of the body, 

 from a honey-yellow to pale rufous, and in the density of the 

 colour of the wings. 



Mtosoma, BrulU. 



Mtosoma pilosipes, sp. n. 



S . Length 3 millim. Head above, antennae, streak on pro- 

 notum, wings, tip of abdomen, and legs black ; face, thorax, 

 coxae, and trochanters and abdomen rufous ; the base of anterior 

 tibiae and tarsi and the base of middle tibiae pale. The whole 

 surface is smooth, shining, impunctured, sparsely hairy ; the legs 

 rather densely pilose. Antennae about 36-jointed. "Wings 

 black ; the second abscissa of the radius is about two and a half 

 times as long as the first, or a little longer than the third ; the 

 second submarginal cell therefore long, as wide at apex as at 

 base; the first transverse cubital nervure oblique, not interstitial 

 with the recurrent nervure ; the second transverse cubital ner- 

 vure straight ; the median and submedian cells are of an equal 

 length ; there is a hyaline or whitish streak across the base of 

 the first submarginal cell that is extended into the third discoidal 

 oell behind the recurrent nervure, while there is also a whitish 

 streak in the second discoidal cell near the discoidal nervure. 

 Abdomen ovate, the first segment the longest, with lateral fur- 

 rows ; the shield wedge-shaped, convex, smooth; second segment 

 transverse, slightly longer than the third, with a fovea on each 

 side of the basal middle, forming a small triangular shield that is 

 not entirely separated behind, and on each side of these fove« is 

 another oblong foveola ; the third segment has a curved im- 

 pressed line at its basal middle that forms a small lunate or 

 semicircular shield, and laterally with oblique grooved lines that 

 extend into lateral foveolae ; while the fourth segment has two 

 transverse impressed lines. 



Sah. St. Vincent. 



Described from two specimens. ISTo species in this genus has 

 yet been described from the N'orth- American fauna, and the 



