. Bulletin of entomological research. Entomology. ON SOME AFRICAN DELPHACIDAE. 143 2. M. kolophon (Kirk.) (fig. 6). Fork at the apex of the genital styles much larger; no black mark at the apex of clavus ; aedeagus slightly smaller, with smaller spines. 3. M. nigeriensis, var. nov. (figs 7 a, 7 b). Fork at apex of genital styles wider and the emargination between them shallower ; a dark mark at the apex of clavus. These forms come near to Kelisia Jcirkaldyi, Muir, and Kelisia fieberi, Muir, and eventually will be placed together in the same genus. Until I can revise these genera I prefer to le
. Bulletin of entomological research. Entomology. ON SOME AFRICAN DELPHACIDAE. 143 2. M. kolophon (Kirk.) (fig. 6). Fork at the apex of the genital styles much larger; no black mark at the apex of clavus ; aedeagus slightly smaller, with smaller spines. 3. M. nigeriensis, var. nov. (figs 7 a, 7 b). Fork at apex of genital styles wider and the emargination between them shallower ; a dark mark at the apex of clavus. These forms come near to Kelisia Jcirkaldyi, Muir, and Kelisia fieberi, Muir, and eventually will be placed together in the same genus. Until I can revise these genera I prefer to let them remain as they are for the present. Megamelus furcifer, var. nigeriensis, nov. (figs. 7 a, 7 b). (J. Macropterous ; length of head, prothorax and mesothorax about 1 *5 times: the width of the head including eyes, vertex slightly longer than wide ; length of face 2-5 times the width, narrowest between eyes, furcation of median carina at extreme base ; antennae terete, reaching beyond the base of clypeus, second joint 1 *4 times the length of first; first joint of hind tarsus as long as the other two together, spur longer than first joint of tarsus, large, with many small teeth on hind margin. Carinae of face and clypeus, vertex, middle and lateral portions of pronotum,, middle of mesonotum, tegulae and base of abdomen yellow ; face and clypeus between carinae, medio-lateral portions of pronotum, lateral portions of mesonotum. and greater portion of abdomen black ; front and middle legs dark brown, hind legs lighter brown. Tegmina hyaline, a dark mark at end of clavus and fuscous over apical veins. The pygofer is similar to that of M. Jwlophon, Kirk.,* but the genital styles are wider at the apex and not so deeply indented, the aedeagus is slightly larger and the spines stronger. Length, 2 mm. ; tegmen, 2 '3 mm. Nigeria : Oloke-Meji, Ibadan, 1914 (J. C. Bridwell). Described from two males. Megamelus flavolineatus, sp. nov. (fig. 8). (J. Macropterous ; width of head includi
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