350 Mr. R. E. Turner on Fossorial Hymenoptera. 



widely and very shallowly emarginate, microscopically punc- 

 tured ; a few large punctures, from which spring black 

 hairs, close to the. apical margin. Second joint of the 

 flagellum about half as long again as the third; the distance 

 between the eyes on the vertex about equal to the length ot 

 the second joint of the flagellum ; posterior ocelli as £ar from 

 each other as from the eyes. Pronotuni short, nearly four 

 times as broad as its length at the sides, very shallowly arched 

 posteriorly. Scutellum broad, not convex in the middle, 

 postscutellum convex, not tuberculate. Median segment 

 without lateral tubercles; gradually sloped posteriorly, not 

 truncate ; coarsely transversely striated. Sixth tergite with 

 sparse setigerous punctures, broadly rounded at the apex, the 

 setse fulvous with a few black intermingled. The' sulcus on 

 the second sternite curved. Hind tibiae very distinctly 

 serrate, the inner calcar long, nearly half as long as the meta- 

 tarsus. First recurrent nervure received distinctly before 

 the apex of the second cubital cell, second at two-fifths from 

 the base of the third cubital cell. Cubitus distinctly curved 

 downwards from the second transverse cubital nervure; first 

 transverse cubital very long and oblique as in Hmiipepsis, 

 the second cubital cell long and narrow ; third abscissa of 

 the radius about half as long again as the second. Cubitus 

 of the hind wing originating just before the transverse 

 median nervure. The fuscous border of the fore wing just 

 touches the apex of the radial cell and thence is narrowed 

 rapidly. 



Hah. Mlanje, Nyasaland (S. A. JSeave), November to 

 February ; Valley of Kola River, near Mr. Chiperone, 1500- 

 2000 ft., Portuguese East Africa (S. A. Neave), April. 



This is very distinct from any other African Cyphononyx, 

 resembling in colour 0. flaws, Fabr., an Oriental species, 

 but the shape of the second cubital cell shows an approach to 

 Hemipepsis ; the tarsal ungues, however, are the same as in 

 Cyphononyx. 



Type in B.M. 



Cyphononyx flavicornis, Fabr. 

 Sphex flavicoruis, Fabr. Spec. Insect, i. p. 450 (1781). 



This is distinct from bretonii, Guer., having fulvous legs 

 and no blue sheen on the abdomen. I look on C. antennata, 

 Sin. (=.irenensis, Cam. 1910), as merely a variety of this, 

 differing in the colour ot the head and thorax, which are 

 mostly black in antennata and dull ferruginous in flavicornis ; 

 but colour varies in a similar manner in some other African 



