OF THE ISLA]N"D OF ST. VINCENT. 197 



Subfamily Dbtinin^. 

 Labeo, Haliday. 



The collection represents two distinct species in this genus, 

 although they are closely related and difficult to separate. 



The following characters may, however, be used to separate 

 them : — 



Black, shining ; all coxae black, the anterior 

 femora, more or less, middle femora and pos- 

 terior femora and tibia; brown or fuscous, 

 trochanters, knees, and tarsi pale or whitish. 

 Antennae not extending beyond the meta- 

 . thorax ; the scape and pedicel nearly of an 

 equal length ; the first flagellar joint twice 

 as long as the pedicel, the following joints 

 very slightly shorter, thrice as long as thick ; [sp. n. 



vertex finely punctulate L. Sancti-Vincenti, 



Black, shining; coxae and legs pale, the middle 

 and posterior coxae dusky basally, their 

 femora towards base fuscous. 

 Antennae extending to the middle of abdo- 

 men ; the scape distinctly longer than the 

 pedicel ; the first flagellar joint nearly thrice 

 as long as the pedicel, the second and 

 third joints fully as long as the first, the 

 following four times as long as thick ; ver- 

 tex smooth, not finely punctulate L. simulans, sp. n. 



Labeo Sancti-Vincekti, sp. n, 



S • Length If millim. Black, shining, sparsely covered with 

 a short, whitish pubescence. Head shining, but finely, minutely 

 punctulate. Ocelli red. Eyes hairy. Mandibles and palpi 

 white. Antennae 10-jointed, fuscous, not extending beyond the 

 tip of metathorax ; scape and pedicel oval, about equal ; first 

 flagellar joint twice as long as the pedicel, the following very 

 slightly shorter, thrice as long as thick. Thorax with two furrows 

 converging posteriorly. Mesopleura with a transverse furrow 

 across the disk. Metathorax rounded ofi" posteriorly, finely 

 sculptured, opaque. Coxse black or piceous ; legs brown, all 

 trochanters, tips of anterior femora and their tibiae, middle of 

 posterior knees, and all tarsi pale or whitish. Tegulse yellowish 

 white. Wings hyaline, the stigma brown, the veins hyaline. 



