36 



8. PERFORANS Pergande, 1. c, p. 193 (1904). 



9. PERNiciosA Pergande, 1. c, p. 251 (1904). 



10. PICTA Pergande, 1. c, p. 197 (1904). 



11. PiLOSULA Pergande, 1. c, p. 203 (1904). 



12. popuLARiA Pergande, 1. c, p. 266 (1904). 



13. puRPUREA Pergande, 1. c, p. 233 (1704). 



14. QUERCETi Pergande, I. c, p. 263 (1904). 



15. RiMOSALis Pergande, 1. c, p. 217(1904). 



16. SALicis Lichtenstein, Ann. Soc. Ent. Fr.(6) lY, Bull., p. GXXI 

 (1884). 



17. SALICOLA Pergande, 1. c, p. 267 (1904). 



18. SPiNULOiDA Pergande, 1. c, p. 247 (1304). 



19. SYMMETRiGA Pergande, 1. c, p. 232 (1904). 



20. VASCULOSA Pergande, 1. c, p. 233 (1904). 



A'. B. — It is (juite possible that I omitted some species (so m the 

 Phylloxeridœ), but I think they will be very rare, if so. 



