TiLLYARD.—Studies of New Zealand Trichoptera. 285 
Studies of New Zealand Trichoptera, or Caddis-flies : No. 2, Descrip- 
tions of New Genera and Species. 
By R. J. Тплулвр, M.A., Sc.D. (Cantab.), D.Sc. (Sydney), C.M.ZS., 
F.L.S., Е.Е.8.; Entomologist and Chief of the Biological Department, 
Cawthron Institute, Nelson, N.Z. 
[Read before the Nelson Institute, 18th October, 1922; received by Editor, 9th November, 
1922 ; issued separately, 18th June, 1924.) 
Plate 19. 
Ix No. 1 of these studies (Trans. N.Z. Inst., vol. 53, pp. 346-50) I described 
a new genus and species belonging to the family Sericostomatidae. Suc- 
ceeding parts were planned -to take each of the more important families 
one by one, revising them thoroughly and adding the new genera an 
_ present paper the family Rhyacophilidae is fully revised, with a key to 
all the known New Zealand genera; but there are also described some new 
genera and species belonging to other families, and the Calamoceratidae 
are for the first time shown to be represented in New Zealand. 
At the present time twenty-seven species and sixteen genera of caddis- 
flies are known from New Zealand. To these are now added seventeen 
new species and seven new genera, bringing the New Zealand totals up to 
forty-four species and twenty-three genera, or considerably more than 
are known for the whole of Australia. The new genera and species are 
distributed as follows :— 
Previousl Added in this 
described. Paper. Total. 
Family. — ; 
Genera. | Species. | Genera. | Species. | Genera. Species. 
Rhyacophilidae 2 5 5 7 T 12 
Hydroptilidae 1 1 1 i 2 2 
Hydropsychidae 1 i 0 1 1 5 
Polycentropidae 1 1 0 0 1 1 
Calamoceratidae 1 1 0 1 1 - 2 
ceridae .. 4 6 0 1 + Yi 
Sericostomatidae 6 9 1 6 Т 15 
. Total Trichoptera 16 21 T 17 23 44 
Nore.—The genus and species recorded in the first column under the 
family Calamoceratidae have been previously placed in the Sericosto- 
matidae, but are here removed to their proper family, and constitute the 
first record of the occurrence of that family in New and. 
I wish here to thank all those entomologists in New Zealand through 
whose help specimens have been received for study or collected in the 
