228 MR. "W. H. ASHMEAD ON THE PARASITIC HTMENOPTERA 



12-jointed ; in female ending in a 6-jointed club, first funicle-joint 

 about as large as tbe pedicel, 2nd, 3rd, and 4th joints monili- 

 tbrm, the 4th the smallest, transverse : in male filiform monili- 

 t'orm, the second flagellar joint and the pedicel about equal, the 

 first flagellar joint twice as long as the pedicel, the fourth 

 dilated, the following moniliform, loosely joined, becoming very 

 slightly smaller toward apex, the last cone-shaped. Thorax with 

 two delicate furrows, less distinct anteriorly in the female. 

 Wings hyaline, the nervures dark brown, the basal nervure 

 wanting or subobsolete; marginal nervure a little shorter than 

 the shaft of the stigmal. Abdomen long ovate or subfusiformy 

 a little longer than the head and thorax together, finely punctate, 

 the first and second segments striate ; the third segment is the 

 longest; the first segment, in the female, has a triangular 

 prominence or ridge at its base. Anterior tibia9 very short, 

 swollen. 



Hah. St. Vincent. 



Described from two male and two female specimens. 



Cremastobjefs, AsTimead. 

 The two species may be thus distinguished : — 



Wholly black, the legs yellow C. niger, sp. n. 



Head and thorax black ; abdomen rufous C bicolor, sp. n, 



CrEMASTOB^US NIGER, sp. n. 



(S $ . Length 1 millim. Black, subopaque, minutely punctate, 

 pubescent, the thorax more lustrous than the head ; antennae 

 brownish yellow, paler at base ; legs yellow. Head subquadrate, 

 rounded anteriorly, the lateral ocelli touching the border of the 

 eye; the eyes pubescent. Thorax with two delicate furrows. 

 "Wings hyaline, the stigmal vein oblique, slightly shorter than 

 the marginal vein. Abdomen long ovate, in female longer than 

 the head and thorax together, in male slightly shorter, less 

 pointed behind, the sutures between the segments deeply 

 impressed, crenate or striate at bottom, the first segment 

 longitudinally striate. The antennae in the male are subfiliform 

 moniliform, very slightly thickened toward tips, rust-brown; in 

 female paler and ending in a 5-jointed club. 



Sab. St. Vincent. 



Described from one female and two male specimens. 



Cbemastob^its bicoiiOr, sp. n. 



$ . Length I'l millitn. Head and thorax black, faintly 



