644 Ap2}cndix, 



piceous, lateral and posterior segmental margins, luteous ; alxlomeii 

 beneath luteous, lateral and pisterior segmental margins, sanguine- 

 ous, apex fuscous. 



Anterior lobe of pronotnm posteriorly sulcate, posterior lobe 

 entire, the last with its anterior lateral margins narrowly black ; 

 body beneath, sparingly and finely pilose. 



Long. 19 millim. 



Rah. Angola (Brit. Mus.). Mashonaland; Salisbury 

 (G. A. K. Marshall). 



Type, from Angola, in the Biitisli Museum. 

 Specimens from Mashonaland in the Hope Museum, 

 Oxford. 



Callilcstes stignuddlm, sp. nov. (PI. XVIII, f. 62.) 



Ochraceous ; anterior lobe of pronotum, lateral margins of pro- 

 and mesosterna, the metasternum, and abdomen beneath reddish- 

 ochraceous ; antennse, apex of head, eyes, and a transverse fascia 

 between eyes, a postmedian transverse fascia and the apical angles to 

 corium, membrane, tarsi, and posterior tibi?e black ; bases of posterior 

 tibiaj, basal angle and a central spot to membrane, ochraceous. 



Anterior and posterior pronotal lobes with a distinct central 

 sulcation, scutellum witli a strong, circular, basal foveate impres- 

 sion ; posterior lobe of pronotum, scutellum and corium thickly 

 and finely punctate ; femora moderately nodulose and with the tibiae 

 distinctly pilose ; hemelytra extending considerably beyond the apex 

 of the abdomen. 



Long. incl. membr. 14 millim. 



Hal). Mashonaland ; Salisbury (G. A. K. Marshall). 

 Type in the Hope Museum, Oxford. 



Descriptions of nev) species of South African Hymcnoptera. 

 By Colonel C. T. Bingham. 



Ckakis hicolor, sp. nov. (PI. XXIII, f. 10.) 



^ . Head, thorax, the coxai and trochanters of the anterior, and 

 intermediate, and the upper side of the coxa?, the trochanters, tibise 

 and tarsi of the posterior legs black, the femora and tibiae of the 

 anterior and intermediate legs, the front of the posterior coxas, the 

 posterior femora and the abdomen orange-yellow, the apex of the 

 mandibles castaneous, the tibial calcaria of the hind-legs yellow. 



