the genus Odynerns occurring in the Ethiopian Region. 5(>5 



maculis, segmento secundo, pedibusqiie plerumque, ferrugineis. Alis 

 subhyalinis. Tergite 2 carina longitudinali conspicua instructa. 

 Clypeo tricarinato. Long. 8 mm. 



Clothed with an inconspicuous silvery puVjescence on head, 

 thorax and abdomen. Clypeus elongate, almost twice as long as 

 broad, with three longitudinal carinae, the median one hardly 

 reaching the apex; apex very slightly excised. Mandibles acute, 

 slender, but not abnormally long. 



Scutellum considerably raised, truncate laterally; postscutellum 

 with distinct lateral tubercles. Median segment concave, slanting, 

 lateral angles blunt, hut forming distinct ridges. First abdominal 

 segment slender basaily, but widening abruptly towards apex; 

 second tergite with a conspicuous longitudinal keel, reaching the 

 apical yellow fascia. The following segments telescoped, but 

 certainly with yellow fasciae. The whole coarsely punctured, but 

 especially the pro- and mesonotum ; clypeus shining only sparingly 

 punctured. Wings subhyaline. 



Length 8 mm. 1 $. 



Gambia: 15. iii. 1911 (J. J. Simpson). 

 The clypeal and abdominal carinae render this species 

 easy to identify. 



0. (Lionotus) silverlocki, sp. n. (Plate XCI, fig. 4a, 46.) 



$. Niger, punctatus ; clypeo longitudinaliter tricarinato, tergite 2 

 carinato; clypeo, antermis, macula inter antennas, pronoti margini- 

 bus, tegulis, scutello partim, tergite 1 lateribus, pedibusque coxis, 

 trochanteribus, femoribusque, ferrugineis. Maculis parvis sinu 

 orbituli, et post oculos ferrugineis. Segmentis 1-3 fasciis apicalibus, 

 tibiis tarsisque, luteis. Alis fuscis. Long. 8 mm. 



Head and thorax clothed with pale pubescence. Clypeus twice 

 as long as broad, with three conspicuous longitudinal carinae, its 

 surface black at the sides ; the apex narrow, truncate. Pronotum 

 truncate anteriorly, the lateral angles not particularly salient, 

 ferruginous along both anterior and posterior margins. Both 

 scutellum and postscuteHum raised, scutellum with lateral expan- 

 sions, postscutellum truncate posteriorly, armed with small sharp 

 tubercles on each side. Median segment oblique, rounded laterally, 

 each side produced to form a distinct tubercle towards the apex. 

 Segment 1 short, globose ; segment 2 distinctly longer than broad. 

 The whole head and thorax coarsely punctured, the punctures on 

 the mesonotum especially coarse, and forming striae. Punctures 

 on abdomen finer, apical f<t,sciae impunctate. Wings fuscous, 



Length 8 mm. 3 $ ?. 



