OP THE ISLAND OF ST. YINCENT. 251 



DiAPRiA, Latreille. 



DiAPEIA MELLEA, sp. n. 



S 2- Length 1 to I'l millim. Dark honey-yellow or light 

 brownish red, polished, impuuctured ; antennae and legs honey- 

 yellow. Club of antennae in female 4-jointed, gradually formed, 

 the last joint large, conic or oblong, black, closely joined to the 

 penultimate, the other two joints loosely joined. Abdomen ovate, 

 the petiole scarcely once and a half as long as thick, pubescent. 



In the male the flagellum is long, cylindrical, with whorls of 

 long hairs ; the joints, except the first, all long, cylindrical, as long 

 as the scape, the first joint only two thirds the length of the 

 scape. Abdomen oval, the petiole a little more than twice as 

 thick. "Wings hyaline, strongly fringed in both sexes. Scutellum 

 with a rounded fovea at base. 



Hal. St. Vincent. 



Described from two male and three female specimens. 



Trichopeia, Ashmead. 



The following table will aid in separating the three species in 

 this genus. 



Females. 



Species pale, or with thorax pale 2. 



Species black, the pleura alone sometimes piceous. 

 Pleura black ; antennae black ; the club 4-jointed, 

 loosely joined, the joints increasing in size ; 



thickened parts of the legs piceous T. insularis, sp. n. 



Pleura piceous ; antennse, except the last three 



joints of club, and legs honey-yellow T. pleuralis, sp. n. 



2. Thorax pale brownish piceous ; head and abdomen 

 black. 

 Scutellum with two minute subobsolete fovese at 

 base; antennae, except the last two joints, 

 and legs brownish yellow T. atriceps, sp. n. 



Males. 



Species with the thorax pale 2. 



Species black, the pleura alone sometimes piceous. 

 Pleura black ; scape, pedicel, and legs reddish 

 yellow ; second flagellar joint longer than the 

 first, curved and angulate toward one side, the 

 joints beyond rounded-moniliform, shorter 

 than the first, with whorls of bristly hairs . . T. insularis, sp. n. 



