of Indian Aculeate Hymenoptera. 4] 
yellow; the antenne ferruginous. Thorax: an interrupted 
line on the collar, a spot on the tegule, two ovate ones 
beneath the wings, two minute ones on the scutellum, the 
post-scutellum and a line on each side of the metathorax, 
yellow; the legs yellow, the femora above and the apex of 
the tibis ferruginous. The first segment of the abdomen, 
and a central triangular spot which crosses the three 
following segments, ferruginous; the apical segment also 
ferruginous, otherwise yellow. 
* Cerceris rufinodis. 
Male.—Length 43 lines. Black, variegated with yellow, 
the basal segment of the abdomen red; strongly punctured. 
Head: the front clypeus, scape in front, mandibles and a 
spot behind the eyes, yellow; antennz fulvous, more or 
less fuscous above. Thorax: the collar, tegule, scutellum 
and post-scutellum, an oblong spot at the sides of the 
metathorax, two spots beneath the wings, one on the 
pectus, and the legs, yellow; a black spot at the base of 
the anterior and intermediate femora above; the apex of 
the posterior femora and tibie black, their tarsi fuscous ; 
wings hyaline, with a dark fuscous stain at the apex of 
the anterior pair. The second and following segments of 
the abdomen with yellow marginal fasciz, attenuated in 
the middle and sub-interrupted; the fasciz continued 
beneath the abdomen, which is there rufo-testaceous. 
* Cerceris velox. 
Male.—Length 3—3% lines. Black, variegated with 
yellow and ferruginous; the anterior wings with their 
apex dark fuscous. Head: the front, clypeus, mandibles 
and scape in front yellow; mandibles rufo-~piceous at their 
apex; the collar, tubercles, tegule, scutellum and _ post- 
scutellum, the apex of the metathorax and the legs, yellow; 
the posterior femora and tibize black; the former sometimes 
slightly ferruginous beneath, the latter yellow at their base ; 
the posterior tarsi rufo-testaceous; the base of the meta- 
thorax ferruginous, with the enclosed triangular space 
black. Abdomen: the first, second and fourth segments 
ferruginous; the second yellow at its base, then black, with 
the apical portion ferruginous; the fourth segment has 
the apical half black; the following segments with broad 
yellow fascie. 
