250 HYMENOPTEEA. 



Head thickly clothed with fuscous hairs, above the antennae strongly punctured ; the 

 clypeus bluntly carinate, much less strongly and more closely punctured than the 

 vertex ; the ocelli in a large pit, with an impunctate space behind it ; there is a short 

 furrow above the antenna?. The mandibles are yellow, the apex black and ferruginous, 

 the hair long and fulvous. The head is yellow, the vertex black, the black at the 

 apex in the middle incised and with a yellow line from the ocelli ; the black behind 

 becomes narrowed, and then runs round the posterior region to become united to the 

 eyes. The pronotum is strongly punctured ; the mesonotum is finely and closely punc- 

 tured, except at the base ; the scutellum with large widely separated punctures ; the 

 median segment at the base closely and finely punctured. The pronotum is yellow, 

 with a semicircular irregular black mark at the base, and a transverse black band across 

 the centre, the yellow and also the black band extending down the propleurae. The 

 mesonotum has a yellow mark in the centre, indented at the base ; the sides are yellow ; 

 the postscutellum and scutellum, a mark (narrowed towards the apex) at the base in the 

 middle of the median segment and a large mark (extending to the propleurae) at the 

 sides, and a large mark on the mesopleurae produced downwards at the base and apex 

 (much more so at the apex than at the base) all bright yellow. Abdomen yellow 

 above ; a mark at the base and a transverse line on the other segments black ; the 

 pygidium yellow at the base, the middle fiery-golden, with a semicircular dark line in 

 front ; the ventral surface black, with two large marks on the basal segment and two 

 smaller ones on the second. 



The male has the head black, rather strongly punctured, but less strongly on the 

 vertex ; densely covered with fulvous hair ; the mandibles, labrum, and clypeus, the 

 orbits of the eyes to the top of the incision, and two spots over the antennae bright 

 yellow. The antennse with the scape beneath yellow ; the flagellum covered with a 

 pale pile ; the apex rufous. The pronotum closely punctured, yellow ; the extreme base 

 and a large incised mark on the sides black. The mesonotum more strongly punc- 

 tured all over ; a large mark in the centre and two small marks at the tegulae, the greater 

 part of the pleurae, the scutellum, and postscutellum, yellow. The median segment 

 closely punctured, for the greater part yellow ; on each side at the base is a large black 

 mark, with three roundish incisions at the apex and a small yellow mark on the outside 

 at the base ; at the apex in the middle is a black bifurcated mark ; the base of the 

 metapleurae is black. The basal segment of the abdomen is black at the base, the apex 

 yellow, the black continued down the middle as a somewhat pear-shaped mark ; the 

 other segments broadly yellow at the apex, the black on the second segment, and, to a 

 less extent, on the third, produced in the centre ; the apical segment black, with a 

 yellow mark in the middle ; the second and following ventral segments yellow. Legs 

 bright yellow, the hinder coxae, trochanters, and base of the femora black, the coxae 

 marked with yellow beneath. Wings clear hyaline, the extreme apex infuscated, the 

 stigma testaceous ; the first recurrent nervure received a little beyond the middle of the 

 cellule, the second close to the middle of the second transverse cubital. 



