BY WALTER W. FROGGATT. 691 



several species are common about Sydney, and are easily recognised 

 by their habit of forming social clusters during the day, and 

 ejecting a sticky yellow matter from near their mouths when 

 disturbed. 



Newman formed the genus ^?/.r2/s in the " Entomologist," 1841, 

 of which E. nitidus, Kirby, a bi-ight metallic green saw-fly is the 

 most common species, and can be fi'equently taken in the gardens 

 about Sydney. In Kirby's list four more genera of saw-flies were 

 added, and in the last number of the Proceedings of the Linnean 

 Society of N. S. Wales, I have added another genus. 



Section I. — " A7itenn(B short, 6-jointed ; joints 3-5, of equal 

 length, not remiarkahly short." 



Sub-Family CIMBICIN^. 



1. PERGA. 

 Perga, Leach, Zoological Miscellany, III. p. 115 (1817). 



1 AFPlNis, Kirby, Brit. Mus. Cat. Hym. I. p. 19, pi. i. figs. 13 

 and U, (J, 9 (1882). 

 Tasmania and Victoria. 

 BELLA, Newman, Entomologist, I. p. 89 (1841) ; Westw. Pro. 

 Zool. Soc. 1880, p. 373, $. 

 Adelaide, S.A. ; Tasmania. 



BicoLOR, Leach, Zool. Misc. III. p. 116, pi. 148, fig. 5 (1817) ; 

 Westw. P.Z.S. 1880, p. 371, $. 

 N. S. Wales, South Australia. 



BISECTA, Kirby, Brit. Mus. Cat. Hym. I. pi. ii. tig. 4, $ (1882). 

 N. W. Austi-alia. 



5 CAMERONii, Westw. P.Z.S: 1880, p. 367, pi. xxxvii. fig. 3, $. 

 Australia. 



CHRiSTii, Westw. I.e. p. 366, pi. xxxvii. fig. 2, Q. 

 Swan River, W.A. 



CHALYBEA, Froggatt, P.L.S.N.S.W. (2), Y. p. 28-5 (1890). 

 Nundle, N.S.W. ; S. Australia. 



