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Australasian Simuliidae

Published online by Cambridge University Press:  10 July 2009

A. L. Tonnoir
A. L. Tonnoir
Affiliation:
Research Student on Diptera, Cawthron Institute, Nelson, N.Z.
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Extract

1. In this paper five species of Simulium and 16 species of Austrosimulium are dealt with.

2. The new genus Austrosimulium differs mainly from the former in the number of joints in the antennae, which are ten instead of eleven; it seems to be restricted to the Indo-Australian region.

3. In many cases the species of Austrosimulium cannot be differentiated from each other in the adult stage, although they are perfectly different in their early stages and especially in the pupal stage.

4. Seven species of Austrosimulium occur in New Zealand: A. vexans, Mik, A. ungulatum, sp. n., A. australense, Schin., A. tillyardi, sp. n., A. longicorne, sp. n., A. multicorne, sp. n., A. laticorne, sp. n. Only the first two of these are distinguishable from the others in the adult stage; the remainder can only be differentiated in the pupal stage or the late larval stage.

5. Five out of these seven New Zealand species are known in their early stages.

6. In Australia (including Tasmania) five species of Simulium and nine of Austrosimulium are known to the writer, i.e.: S. aurantiacum, sp. n., S. fergusoni, sp. n., S. ornatipes, Skuse, S. umbratorum, sp. n., S. terebrans, sp. n., A. crassipes, sp. n., A. cornutum, sp. n., A. tasmaniense, sp. n., A. victoriae, Roub., A. furiosum, Skuse, A. bancrofti, Taylor, A. torrentium, sp. n., A. simile, sp. n., A. weindorferi, sp. n.

The two species A. victoriae, Roub., and A. furiosum, Skuse, have not been identified with certainty, so that further investigation may show that one or two of the new species are synonymous with them.

7. The early stages of one species of Simulium and five of Austrosimulium from Australia are here described.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 15 , Issue 3 , January 1925 , pp. 213 - 255
Copyright
Copyright © Cambridge University Press 1925

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References

page 214 note * Reise der Oesterreichen Fregatte Novara um die Erde. Zoolog. Theil., Band II. 1ste Abt, p. 15, 1868.Google Scholar

page 214 note † Catalogues of the New Zealand Diptera, Orthoptera, Hymenoptera. Wellington, 1881, p. 19.Google Scholar

page 214 note ‡ Verh. zool. bot. Ges. Wien, xxxi, 1881, p. 201.Google Scholar

page 214 note § Proc. Linn. Soc. N.S.W. (2) iii, 1889, p. 1365.Google Scholar

| Ibid. v, 1890, p. 632.Google Scholar

‖ Rept. Second Meeting Austr. Assoc. Adv. Science, 1890, p. 528.Google Scholar

** Trans. N.Z. Inst., xxviii, 1895, p. 310.Google Scholar

page 215 note * Trans. & Proc. N.Z. Inst. 1901, xxxiv, p.169.Google Scholar

page 215 note † Bull. Mus. Hist. nat. Paris, vii, p. 521.Google Scholar

page 215 note ‡ Austr. Zoologist, i, pt. 6, p. 167.Google Scholar

page 215 note § Ann. Biol.lac., Bruxelles, 1922.Google Scholar

page 217 note * Ann. Biol. lac. 1922.Google Scholar

page 220 note * What A. Peterson (Illin. Biol. Mon. iii, no.2) describes as the lacinia in Simulium seems to be not a true appendage but a chitinous rod imbedded in the integuments and uniting the base of the palpi with the base of the hypopharynx.

page 229 note * Zool, Anzeig. liii, 1921, p. 43.Google Scholar

page 240 note * The type and other specimens of S. victoriae, Roub., in the British Museum have 10-segmented antennae, and therefore the species belongs to Austrosimulium. It is probably distinct from A. tasmaniense, because the terminal lap of the first hind tarsal segment is more than half as broad as the segment itself, which bears a few longish hairs dorsally; there are also similar and more numerous hairs on the last four segments of the hind tarsi.

The species identified by Roubaud from Victoria as S. vexans, Milk, is not the same as the New Zeland form so determined in this paper. It is a true Simulium, apparently the same as S. umbratorum. Besides the specimens examined by Roubaud, others have recently been received from Beaconsfield, Victoria, 6.xi. 1923 (G. F. Hill).—F. W. Edwards.

page 250 note (*) Trans. N.Z. Inst. xxxiv, 1901, p. 169.Google Scholar