- _,^ [December, 



150 



(12) 13. S . Lacinia fringed with hairs, its membrane not produced along the edge 

 of the stipes, abdomen entirely black or piceous. 

 9 . Smaller and lighter, apical dorsal valve widely rounded at the apex, its 



margins reflexed longulus. 



(11) 14. Second sub-marginal cell narrow in both sexes. 



^ , Genital armature nearly twice as broad as long. 



9. Mandibles toothed %«»*• 



(10) 15. S ■ Stipites distinctly strigose. 



? . Mesothorax closely and rather largely punctured, apical dorsal valve 

 wide, flat and punctured. 

 (17"; 16. Larger. S- Abdomen elongate, armature with the lacinia flat and sub- 

 membranous, clothed with long hairs at the apex. 



? . Dorsal apical valve slightly reflexed at the edges pilifrons. 



(16) 17. Smaller. S • Abdomen short, armature with the lacinia bifid at the apex. 



? . Apical dorsal valve distinctly margined shnilis. 



(9) 18. S . Stipites each with a wide longitudinal groove. 



$ . Mandibles toothed, apical dorsal valve shining, or with the 3rd abdo- 

 minal segment with a black fovea on each side. 



(22) 19. (? . Basal segment of abdomen entirely red, or with three small black spotS; 

 at its extreme base. 

 9 . Third abdominal segment not foveated at the sides. 

 (21) 20. S . Larger, with the base of the abdomen entirely red ... ferruginatus, 



lid 

 fcnoi 



ikpl 



(20) 21. S . Smaller, with the basal segment of the abdomen more or less spotted Jj^ 



fte 



iilTe 



«Eto 



isaii 

 Irre 



( 



at the extreme babe liyalinatus. 



(19) 22. (? . Basal segment of the abdomen black. 



$ . Third segment of the abdomen with a black fovea on each side. 



(26) 23. (? . Antennge with a grey pubescent basal band on each joint. 



(25) 24. (J. Antennae entirely black variegatus. 



(24) 25. c? • Antennae more or less rufescent in front divisug. 



(23) 26. (? . Pubescence of antennal joints extending almost to the apex of each. 

 (28) 27. (J . With the thickened portion of the lacinia produced at the apex in! 



wardly and considerably widened dimidiatus. 



(27) 28. J. Apex of lacinia not widely dilated on its inner margin affinis. 



Ji 



1. gibhus, Linn., Syst. Nat., ed. x, vol. i, p. 571. E. Saund., Transfer 

 Ent. Soc. Lond., 1882, p. 196, pi. viii, £. 3. v. Hag., DeutscW Nve: 

 Ent. Zeit., xxvi, 1883, pi. yi, f. 4. I 



Black, base of abdomen more or less red. A bright shining species, the <? witl 

 long antennae, the 3rd joint of the flagellum several times longer than the shoii 

 transverse 2nd joint ; mesothorax largely and rugosely punctured ; abdomen rathe 

 strongly punctured ; wings slightly dusky ; 2nd sub-marginal cell not quite so wid! ^ti 

 at the base as long ; genital armature with each lacinia produced into two elongatj life 

 .processes, clothed with long hairs, the upper one the longest. 



? . Mesothorax very shining, largely and remotely punctured ; metathorax « 



%( 



I 



