TrLLyARD.—Stone-flies of New Zealand. 201 
This species, easily recognized by its large size and by the bright-green 
coloration of the wings, is found in all parts of New Zealand where there 
is running water. Occasionally a yellow variety is found, in which the 
wings are somewhat shorter than in typical specimens. 
Type in British Museum collection. 
Family AUSTROPERLIDAE. 
Tillyard, Canadian Entomologist, Feb., 1921, p. 40. 
This family is confined to New Zealand, Tasmania, and Victoria. There 
are only two genera, Austroperla , Needham and Tasmanoperla Tillyard. 
Both genera have the second inter-anal cross-vein (fig. 2, k) strongly 
thickened. 
Genus AUSTROPERLA Needham. (Fig. 2.) 
Needham, 1905, Proc. Ent. Soc. Washington, vol. 18, p. 109. 
Heteroperla Hare, 1910, Trans. N.Z. Inst., vol. 42, p. 30. 
Genotype.—Austroperla cyrene (Newman). 
This genus is distinguished from Tasmanoperla Till. by having, in the 
forewing, a definite anal angle, distad from which the posterior margin 
in of the wing, and also by the 
ien. 
SANT TT 
s PT / / 
PCI т 
TZ р 
COE a 
Fic. 2.—Wing-venation of Austroperla cyrene (Newm.). (For lettering see fig. 1, 
except k, the strongly thickened second inter-ana] cross-vein.) 
Chloroperla cy 1 
cyrene Walker, 1852, Cat. Neur. Brit. Mus., p. 168; McLachlan, 
1874, Trans. N.Z. Inst, vol. 6, App. p. xcii 
Stenoperla (?) cyrene Hutton, 1899, Trans. N.Z. Inst 
. 919. Heteroperla cyrene Hare, 1910, Trans. 
30 
р 
vol. 42, р. 30. 
