On some South African Ichneumonidae. 369 



and apophyses obtuse. Scutellum closely punctate, not convex, 

 margined to its apical third. Abdomen deplanate, oval and dull, 

 with the basal segment nitidulous, sparsely punctate and excarinate ; 

 thyridii, transverse and superficial, small. Legs slender and elongate. 

 Wings hyaline with basal nervure continuous and areolet not coales- 

 cent above. ?. . . . The J differs slightly in having the flagelluni 

 setigerous and internally serrate towards its apex, with only four 

 central joints disc-ally white ; and the areola a little transverse, with 

 strong costulae. The legs are darker, the abdomen nigrescent from 

 base of second to centre of fifth segments, with extreme apex of the 

 fourth also white, as are the palpi, anterior coxae beneath, extreme clypeal 

 apex and part of the facial orbits. Length, 5 <$ , 9-10 mm. It is allied 

 to P. rufus, Wesm., but with the legs more elongate and slender, etc. 



L. C. Peringuey took the typical female at Green Point, Cape Town, 

 and T. Ayres found the two co-typical males at Potchefstroom in the 

 Transvaal. 



PLATYLABUS PULCHELLUS, sp. nov. 



$ only. Extremely like the last species and similarly, though more 

 profusely, white-marked : thus it has in addition the vertical orbits 

 and sides of the clypeus both broadly, all the trochanters, the post- 

 scutellum, whole apex of second and apex of third segments laterally 

 white, with the fourth and fifth alone entirely black. The hind tibiae 

 and tarsi, and base of flagelluni, are entirely black. Structurally it is 

 known by the absence of metanotal costulae and the elongate areola, 

 which is subparallel- sided and nearly twice as long as broad, broadest 

 before its centre ; by the glabrous postpetiole and subcircular thyridii. 

 Length, 10 mm. 



Captured at Mfongosi in Zululand by W. E. Jones during December, 

 1914. 



PLATYLABUS MINIATULUS, sp. nov. 



<J only. Closely related in colouration to the two previous species, 

 but smaller and much more nitidulous ; instantly known by its 

 scabrous metathorax, which lacks all trace of areae, by the immargiuate 

 scutellum, by the narrower and smaller areolet, subantefurcal lower 

 basal nervure, by a brilliant white dot at base of each mandible, and 

 the entirely concolorous labrum below the centrally produced clypeus, 

 by the internally pure white anterior femora and tibiae and the pure 

 white second and third hind tarsal joints, similar to those of P. albinus 

 G-rav. Length, 7| mm. 



Found at Cape Town by L. Peringuey early in 1915. 



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