490 Mr. G. Meade- Waldo's revision of the species of 



8. (9) Pronotum ferruginous, wings subfuscous, postscutellum 



black macnlisca'pus. Cam. 



9. (8) Pronotum black, narrowly yellow along the anterior margin, 



postscutellum with a transverse yellow line; clypeus 

 ($) with considerable pale markings. 



10. (11) Sides of pronotum parallel, wings fuscous. 



kibonotensis. Cam. 



11. (10) Sides of pronotum rounded, wings clear hyaline. 



12. (7) Tergite 1 not elongate, at least as broad apically as long. 



13. (14) Colours yellow and ferruginous red, lateral angles of median 



segment very sharp inconstans, Sauss. 



14. (13) Colours black, with yellow markings and fasciae. 



15. (16) Segments 1 and 2 of abdomen with yellow apical fasciae, 



median segment without lateral angles; wings very 

 ample neavei, sp. n. 



16. (15) Segments 1-4 with yellow or yellowish white apical fasciae. 



17. (20) Small species. Total length 8 mm. 



18. (19) Tergite 2 tuberculiform at base; tegulae and a line on 



scutellum yellow massanensis, Sauss. 



19. (18) Tergite 2 normally rounded above ; tegulae ferruginous, no 



yellow on scutellum lufirae, sp. n. 



20. (17) Larger species. Total length 11-13 mm. 



21. (24) Tegulae ferruginous, legs for the most part ferruginous; 



anterior margin of pronotum with a narrow yellow fascia. 



22. (23) Wings fuscous, scutellum black, head and thorax with a 



long pubescence lineaticollis. Cam. 



scutellum ferruginous .... var. rufojnctus, noy. 



23. (22) Wings partly fuscous, scutellum with an interrupted 



yellow line. neuvillei, du Buyss. 



24. (21) Tegulae black, legs mostly black. 



25. (26) Head and thorax clothed with a long dark pubescence. 



striativentris. Cam. 



26. (25) Head and thorax clothed with cinereous pubescence. 



zebra, Sauss_ 



Subgenus Lionotus. 



1. (67) Postscutellum truncate, laterally tuberculate or sub- 



tuberculate; group of O. dubius, etc. 



2. (19) Scutellum bilobed or laterally lamellate (schaiifelformig) 



or tuberculate. 



3. (8) Tegulae very large. 



4. (5) Scutellum with lateral lamellae; colours black, ferruginous 



and yellow mucronatus, Sauss. 



