Hymenoptera. 197 



The female is similar ; the clypeus is fringed with long rufous 

 hair ; the scopa white, tinged slightly with rufous. 



This species is very similar to M. prionsa ; the latter is a narrower, 

 more elongated species, especially as regards the abdomen, which 

 is clearly longer than the head and thorax united ; the scutellum 

 is more broadly rounded, and it wants the stout lateral spines ; 

 the head is longer, especially behind the eyes, and the second 

 tooth of the mandibles is blunter, more broadly rounded. 



Prosopis qttadrilineata, sp. nov. 



Black, a line along the inner orbits, commencing shortly 

 below the ocelli and becoming thicker towards the apex, a slightly 

 narrower line in the centre of the face, a broader line on the hind 

 edge of the pronotum, and a large broad mark on the scutellum, 

 roundly curved at the apex, the base with two broad shallow 

 curves. Wings hyaline, the stigma testaceous, the nervures darker. 

 Female. 



Length G-7 mm. 



Brak Kloof. Mrs. G. White. 



Shining. Face and clypeus strongly but not closel}' punc- 

 tured. The centre of front distinctly- raised, closely and sti'ongly 

 punctured, and with a thin keel down the centre ; a deep 

 depression, obliquely narrowed towards the apex, before the 

 ocelli. Upper part of pro- and the mesopleurae closely punctured. 

 Apices of basal three abdominal segments narrowly testaceous ; 

 the apical coarsely chagreened. First recurrent nervure received 

 a slightlj' greater distance from the 1st, than is the 2nd from the 

 2nd transverse cubital nervure. 



Ostiiia? capensis, sp. nov. 



Black, thickly covered with long, white hair ; the four front 

 tibiaj and tarsi rufous, the tibiae darker behind ; tiagellum of 

 antennae ferruginous below ; wings hyaline, with a slight fuscous- 

 violaceous tinge ; the stigma testaceous, the costa and nervures 

 blacker. 



Length 10 mm. 



Cape Town (Rev. J. O'Neil, S.J.). 



