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An increase in sightings of the Australian species of skipper, Hasora khoda haslia (Swinhoe) (Lepidoptera: Hesperiidae), at Ryde and Turramurra, (suburbs of northern Sydney) and Oyster Bay (southern Sydney), was recorded in the 1980s. This note presents data on additional sightings for Sydney and some localities farther south and attempts to trace the progress of a southerly extension of range of the species of some 400 km (Port Macquarie to Kiama) since about 1970. Recent sightings also indicate that in the Sydney area the adult flight period is commencing earlier in the season and is lengthening in duration. It is suggested that these changes are in response to climate change.

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