1895.] HTMElSrOPTEBA OF THE ISLAITD OF GRENADA. 805 



Club of antennte abrupt, 3-jointed, the last joint twice 

 as long as the penultimate, the last two joints 



black JD.peraffinis. 



2. Antennae with a gradually inorassated 4-jointed olub, 

 reddish yellow. 

 Legs reddish yellow D. wnieolor. 



Males. 

 Body black. 



Thorax entirely black ; petiole of abdomen short. 



Antennae about twice as long as the body, reddish- 

 yellow, the flagellar joints with long slender 



peduncles D. smitkii. 



Thorax anteriorly more or less piceoiis. 



Antenna^ not 1^ times as long as the body, reddish, 



the flagellar joints with short peduncles B. gretiadensis. 



Antennae about 1| times the length of the body, 

 reddish, the flagellar joints with long slender 



peduncles D. Xieraffinis. 



Thorax rufous, the mesopleura black, abdominal petiole 

 very long. 

 Antenna about twice the length of the body, reddish 



yellow, the joints with long slender peduncles ... B. melanopleura. 



(1) DlAPRIA SMITHI, sp, n. 



$ . Length 2-2 mm. Polished black ; antennae and legs red ; 

 wings hyaline, pubescent, the stigma yellow. 



Head globose, the cheeks sparsely pubescent ; antennae about as 

 long as the body, the flagellum gradually incrassated, the scape 

 long, about as long as the first four funicle joints united ; pedicel 

 shorter but a little stouter than the first joint of funicle ; funicular 

 joints 2 to 4 subequal, the fourth the stoutest, the six following 

 joints, which in reality constitute the club, are moniliform and 

 gradually incrassated ; collar at sides and metathorax pubescent ; 

 scutellum with a large, deep fovea at base ; abdomen ovate, the 

 petiole rugose, pubescent, scarcely longer than thick. 



S . Length I'S mm. Differs from female in the shorter, oval 

 abdomen, the petiole being nearly twice as long as thick, and by 

 the long, nodose-pedicellate antennae, which are red and about 

 twice the length of the body, with whorls of long hair, the 

 peduncle of each joint being as long as the nodose or swollen part, 

 except those of the last three joints. 



Chantniy Estate. Described from one male and one female 

 specimen. 



(2) DiAPEIA GEEKADENSIS, Sp. n. 



2 . Length 1'5 to 2 mm. Polislied black, the thorax anteriorly 

 and the abdomen beneath with a distinct reddish or piceous tinge ; 

 antennae, except last two joints, and the legs red or reddish yellow; 

 wings hyaline, the stigma yellowish. 



Head globose, the cheeks pubescent behind ; antennae extending 

 to middle of abdomen, the club incrassated, the last two joints 

 black; funicle 6-jointed, the first joint longer but slenderer than 



