HTMENOPTEEA IIS" THE BEITISH MUSEUM. 443 



fine sparse pubescence on the head and sides of the median 

 segment is white. A variety has the yellow markings on the 

 postscutellum, the legs, and abdomen obsolete, or nearly obsolete, 

 reduced on the last, in some specimens, to an oval spot on either 

 side of the 2nd segment, and only indications of a yellow line on 

 the 4th and 5th segments. 



2 • Length 12 millim. ; exp. 22 millira. 



Hab. Tenasserim. 



Genus PsEN, Latr. 



PSEN" PTJLCHEERIMUS, Sp. UOV. 



5 . Head above, thoras, and abdomen smooth and shining, the 

 clypeus densely pilose ; clypeus small, convex, the front between 

 the eyes broad; the flagellum of the antennae testaceous, the 2Dd 

 joint as long as or longer than the 3rd and 4lh together; ocelli 

 in a triangle wide apart from each other, each ocellus in a pit ; 

 the apex of the mesonotum and the sides and apex of the post- 

 scutellum with coarse outwardly oblique striae; median segment 

 long, rounded posteriorly, with a well-marked longitudinal fur- 

 row in the middle from base to apex ; legs stout, the posterior 

 tibiae with very minute spines ; abdomen with the apices of 

 segments 2-4 slightly constricted. Head and thorax black, 

 abdomen ferruginous red ; the scape aud the basal five joints of 

 the flagellum of the antennae below, a line on the pronotum, a 

 spot before the tegulae, the tegulae, a large square spot at the 

 apex of the mesonotum, the scutellum and postscutellum, two 

 large oblong spots at the apex of the median segment, the apex 

 of the coxae, the trochanters, femora, tibiae, and tarsi of the legs, 

 and the petiole of the abdomen, yellow ; the femora, tibiae, and 

 tarsi of the posterior legs have a fuscous stain, and the apex 

 of the petiole below is black ; wiags hyaline and beautifully 

 iridescent, the nervures testaceous. 



2 • Length 7 millim. ; exp. 12 millim. 

 Hab. Amherst (Tenasserim). 



Genus Ceabeo, Fair. 



Div. 1. Abdomen sessile. 



Ceabeo alacee, sp. nov. 



2 . Head, thorax, and abdomen punctured, the punctures on 

 the head and especially on the abdomen very fine and close, on 



