106 HYMENOPTERA 



scutellum yellow^ sometimes two yellow spots on the scutellum ; the 

 anterior femora, except at the base, the tibiae, the basal and apical 

 joints of the tarsi, yellow ; the middle legs with the apical half of the 

 femora beneath, the tibiai at the base and more or less in front, and 

 the base of the first joint of the tarsi, yellowy the posterior tibiae 

 clavate, and with a few spines on the outer margin of the club yellow 

 at their base. Abdomen clavate, smooth and shining ; the apical 

 segment punctured and margined laterally. 



Length, 4-2—6 lines. 



Male. Very like the female ; differs in having the flagellum 

 fulvous beneath, beyond the second joint ; in other respects the same. 



The second and third segments of the abdomen are sometimes 

 more or less ferruginous. 



R. ALBiPEs. Smith, Trans. Ent. Soc, 1878, p. 7. 



Male. Black ; with the posterior tarsi white. Head subquadrate, 

 a little wider than the thorax, and slightly shining ; the clypeus with 

 silvery- white pubescence ; the scape of the antennae yellow in front ; 

 an impressed line runs from the anterior ocellus to the insertion of 

 the antennae. Thorax slightly shining ; the scutellum, and the 

 enclosed space at the base of the metathorax, very finely punctured, the 

 latter with a central impressed line, which unites with a deep fosstdet 

 that extends to the apex of the metathorax, the sides of which have a 

 thin white pubescence ; the tubercles yellow ; the wings hyaline, the 

 nervures testaceous, with the costal and the stigma brownish-black; 

 the tips of the anterior and intermediate femora, the tibiae, and tarsi 

 pale rufo-testaceous, the tibiae with a dark stain in the middle, the 

 claw-joint of all the tarsi ruf o-piceous ; the posterior tibiae clavate, 

 white at their base, as well as the second, third, and fourth joints of 

 the tarsi. Abdomen smooth and shining ; the petiole clavate. 



Length, 4i lines. 



Dunedin. 



Family— POM PILID.^. 

 Prothorax arcuate in front of the wings, then almost square or 

 narrowed. Posterior legs at least as long as the head and thorax 

 together. Antennae long generally; convolute, especially in the 

 females. Wings broad. 



aenus-POMPILUS. 

 Latreille. 

 Anterior tarsi not toothed nor pectinate ; often ciliate. Posterior 

 tibiae toothed. One radial (marginal) cell pointed at the apex ; four 



