244 Transactions of the South African Philosophical Society. 



femora are straight at the base below ; in calida roundly, broadly 

 curved to the tooth ; in calida the tibiae are more produced at the 

 apex, with the process longer, sharper, it being very much longer 

 compared with the width of the metatarsus ; the black colour on 

 femora, too, extends below on the basal half in calida ; in dalgana 

 it does not extend below anywhere. 



Gen. CERATINA, Latr. 

 Ceratina maculiventris, sp. nov. 



Dark green, largely marked with blue and coppery-brassy tints ; 

 the clypeus, except for two broad, irregular, curved lines in the 

 centre, labrum, cheeks, mandibles, except at the apex, where they 

 are piceous, the greater part of antennal scape, a narrow line on the 

 pronotum, tegulae, tubercles, scutellum, a curved line behind it, 

 extending to the wings, post-scutellum, and the abdomen, except 

 for some irregular curved blackish lines and marks ; the apex of 

 femora, tibiae, and tarsi, pale bright yellow; wings clear hyaline, 

 the nervures and stigma pallid testaceous. 2 and $ . 



Length 3 mm. 



Cape Colony. Pearston. 



Antennal flagellum brownish testaceous, blackish above. Head 

 and thorax closely, minutely punctured and thickly covered with 

 longish white pubescence ; the clypeus with some large, separated 

 punctures in the middle, a narrow furrow runs down from the ocelli. 

 There are three narrow furrows on the base of the mesonotum, and, 

 in the middle, outside these, a shorter, wider one. The metanotum 

 is more strongly and distinctly punctured than the rest of the thorax. 

 Abdomen smooth and shining ; the black marks on the back vary ; 

 on the basal two segments there may be two broad curved lines ; on 

 the others black lateral lines ; or there may be hardly any black ; 

 the apical segments covered with longish soft white hair ; the scopa 

 white. Legs thickly covered with long white hair ; the hinder tibiae 

 and the metatarsus may be lined with black on the outer side. 



The marks on the clypeus may be absent ; there may be a trans- 

 verse yellow mark on the face above it ; the scutellum may be 

 marked with black on the apex and the ventral segments may 

 be marked with black at the sides. Very probably the number and 

 size of the black markings on the body and legs vary. The apical 

 two ventral segments may be largely black. The second and third 

 cubital cellules are narrowed in front ; the second is about one-half 

 the length of the third in front ; the first and second transverse 

 cubital nervures are roundly curved. 



