HYMENOPTERA. 451 



times of an orange colour ; the flagellum fulvous beneath ; the 

 mandibles of a reddish-yellow, with their tips rufo-piceous. 

 Thorax : a spot on each side of the collar, the tegulae, post-scu- 

 tellum, and legs, orange ; the second segment of the abdomen, 

 the fourth and following segments orange; the first and third 

 black. 



Hob. Australia (Adelaide). 



70. CERCERIS ANTIPODES. B.M. 



Female. Length 4 lines. Black, punctured : the clypeus, 

 sides of the face, the mandibles, and the carina between the 

 antennae, yellow ; the flagellum fulvous beneath ; a minute yel- 

 low spot behind the eyes. Thorax immaculate ; the tegulae 

 fulvous ; the wings slightly coloured with a fuscous cloud at the 

 anterior margin of the superior pair towards their apex ; the 

 nervures ferruginous ; the legs fulvo-ferruginous ; the basal joint 

 of the intermediate tarsi yellow ; the posterior pair slightly fus- 

 cous ; the coxae and base of the femora black. Abdomen : the 

 second, fourth and fifth segments of an orange-yellow; the 

 fourth segment more or less black at the base ; beneath, the base 

 of the segments rufo-piceous. 



Male. This sex differs in having the scape yellow in front, 

 two minute spots on the vertex, two spots on the collar, two on 

 the scutellum, the post-scutellum, and two minute spots on the 

 metathorax, orange-yellow ; the sixth and seventh segments 

 yellow. 



Hob. Australia. 



71. CERCERIS BIFASCIATA. 



Cerceris bifasciata, Guer. Icon. Reg. Anim. 443. t. 71. f. 9. 

 Hab. Bengal. 



72. CERCERIS FLAVO-PICTA. B.M. 



Female. Length 4 4 lines. Head yellow, the vertex black, 

 with a transverse yellow line behind, and a black stripe running 

 downwards to each antenna; the clypeus projecting, the apex 

 truncate; the antennae ferruginous, with the scape yellow in 

 front ; the tips of the mandibles black. Thorax yellow, the disk 

 of the mesothorax black, a black line behind the wings, running 

 downwards obliquely to the posterior coxae; a central black 

 stripe down the metathorax, the subcordiform space at the base 

 of the metathorax smooth and shining; the wings hyaline, 

 with a dark fuscous spot at the apex of the anterior pair ; legs 



