Treeswifts (Hemiprocnidae)

Grey-rumped Treeswift (Hemiprocne longipennis) - HBW 5, p. 465

French: Hémiprocné longipenne German: Haubenbaumsegler Spanish: Vencejo Arborícola Culigrís
Other common names: Crested Treeswift(!)

Taxonomy: Hirundo longipennis Rafinesque, 1802, Java.
Forms a superspecies with H. coronata, with which formerly sometimes treated as conspecific. Several races have been described, but most nowadays considered invalid, e.g. ocyptera (Nias I), thoa (Batu Is, Pagi Is, Enggano I) and anochra (Natuna Is). Four subspecies recognized.

Subspecies and Distribution:

  • harterti Stresemann, 1913 - S Myanmar (S Tenasserim) and SW Thailand S & E to Sumatra, Borneo and intervening islands, and Sulu Archipelago E to Tawitawi (Philippines).
  • perlonga (Richmond, 1903) - W Sumatran islands from Simeulue to Enggano.
  • longipennis (Rafinesque, 1802) - Sunda Strait (Panaitan I) through Java to Lombok, and Kangean Is (E Java Sea).
  • wallacii (Gould, 1859) - Sulawesi, including S and E satellites, and Sula group (W Moluccas).

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