78 HYMENOPTEKA FROM SARAWAK. 



Mutilla ikrda, sp. nov. 



Black ; the prothorax, mesonotum, scutellum and base of 

 median segment rufous ; abdomen black, with violet and purple 

 tints : the apex of the second and of the third segments banded 

 with clear white pubescence ; wings fuscous-violaceous, lighter 

 in tint at the base. ?> . 



Long : 12 mm. 



Hab. Kuching, Sarawak. 



Antennae stout, covered with a microscopic pale pile ; the 

 third joint is about twice the length of the pedicle and not quite 

 one-half the length of the fourth. Head distinctly narrower 

 than the thorax, thickly covered with long white hair, except 

 on the front and vertex where the hair is sparser, shorter and 

 black. The ocellar region is bounded laterally and below by 

 two stout keels ; the space between is depressed ; a keel runs 

 into the front ocellus. The clypeus is broadly keeled above ; 

 its apex is transverse, with the sides oblique. Mandibles irregu- 

 larly bidentate at the apex ; their base sparsely covered with 

 longish golden hair. The pro- and mesonotum are closely and 

 strongly punctured and covered with golden pubescence. 

 Median segment closely reticulated ; the central basal area is 

 twice longer than broad and has the apical half narrowed. 

 Propleune closely and strongly punctured except behind ; the 

 lower part is bounded by a si out keel : above this, on the apex, 

 are four short keels, which become gradually shorter from the 

 bottom to the top. Mesopleurae closely and strongly punctured. 

 Metapleunt' reticulated, except behind ; on the upper part, at 

 the base, is a narrow keel and above the middle a wide longitu- 

 dinal furrow. Wings fuscous-violaceous, paler at the base ; the 

 third transverse cubital nervure is faint, as is also the cubitus 

 from the second transverse cubital and the second recurrent 

 nervures ; the first transverse cubital nervure is oblique, and 

 roundly curved on the lower part ; the second is roundly curved 

 outwardly in the middle ; the second cubital nervure above is 

 slightly more than one half of the length of the first. Abdomen 

 shining, black ; the third and following segments with blue and 

 violet tints ; the basal segments sparsely covered with white, 

 the apical more thickly with black, hair ; the apex of the second 



