1884.] 149 



although he makes suggestions which seein, as far as I can judge, to 

 assign them correctly. Any one studying this genus ought certainly 

 to procure his papers, as there is yet room for hope that more of the 

 European species may turn up in this country. 



I have pleasure in thanking the Eev. E. N. Bloomfield, and 

 Messrs. Bridgman, Harwood, Marquand, Parfitt, Perkins, and Service, 

 for the loan of their specimens, and for several rarities which they 

 have kindly given me. 



TABLE OF SPECIES. 



(8) 1. J & 9 • Hooks of posterior- wings 7 — 10, large species. 

 i^\ 9 ^ ^ ' -Posterior tibiae not spinose. 



1 ? . Mesothorax Tery shining, puncturation large and remote. 



(4) 3. (J . Basal pubescent bands of the antennal joints reaching to about one- 



third of the length of each joint, and widened at the sides. 



? . Q-labrous centre of apical dorsal valve very narrow, almost linear... 



ffibbus. 



(3) 4. cJ . Basal pubescent bands of antennae very narrow, not widened at the sides. 



? . G-labrous centre of apical dorsal valve more or less wide. 

 (6) 5. S . Lacinia of armature not bifid, 2nd sub-marginal cell very narrow. 



? . Sides of metathorax reticulated, apical dorsal valve rather narrow, 

 spines of tibiae black reticulaius. 



(5) 6. <? . Lacinia of armature bifid at the apex, 2nd sub-marginal cell not very 



narrow. 

 $ . Vertex of head sub-quadrate, sides of metathorax strigose, apical dorsal 

 valve wide and flat, spines of posterior tibiae pale ... suhquadratus. 



(2) 7. <? . Posterior tibiae armed with pale spines along their external margin, as 

 in tlie ? . 



$ . Thorax dull, closely and rugosely punctured spinulosus. 



(1) 8. (J & ? . Alar hooks 5 — 6, large or small species. 



(18) 9. S • Stipites of armature without a wide longitudinal groove. 



$ . Dorsal apical valve wide, flat and dull, or with the mandibles not 

 toothed, or very small (niger) with mandibles toothed, but with the 

 2nd segment of abdomen more or less suffused with black, and the 

 3rd segment not foveated at the sides. 



1(15) 10. c? • Stipites not strigose, finely reticulated or rugose or nearly smooth. 



? . Mesothorax finely punctured, apical dorsal valve not dull and punctured. 



1(14) 11. Second sub-marginal cell wide in both sexes. 

 (J . Q-enital armature longer than wide. 

 $ . Mandibles not toothed. 



j(13) 12. S . Lacinia of armature not fringed with hairs at the apex, its membrane 

 produced along the inner edge of the stipes. 

 ^ . Larger and darker, apical dorsal valve narrowly rounded at the apex, 

 and with an impressed line parallel to the margin punctieeps. 



