Monday, 1 August 2016

189. Celaenorrhinus vietnamicus (The Vietnamese Dark Yellow-banded Flat)

Number: 189
Family: Hesperiidae
Sub-Family : Pyrgiinae
Species: Celaenorrhinus vietnamicus Devyatkin,1998
Common name(s): The Vietnamese Dark Yellow-banded Flat
Photography location: Xuan Son N.P. (Phu Tho Prov.), Ba Vi N.P. (Hanoi)

Celaenorrhinus is one of the largest genera of the Hesperiidae and the only pantropical one, with about 130 species. 24 of these are found in the Neotropical region, 50 are found in various parts of eastern Asia, and 45 are Afrotropical in distribution. In Vietnam, 18 species are recorded.

Celaenorrhinus vietnamicus is closely related to C. aurivittata aurivittata (Moore, 1879) and differs externally in darker ground colour, lighter yellow forewing band, without any trace of orange, and detached apical spot in space 6 (Devyatkin, 1998). Recorded from southern China to central Vietnam. Holotype from northern Vietnam (Ba Vi National Park).

Celaenorrhinus vietnamicus roosting upside down under leaves...

... and feeding on flower nectar (Xuan Son, May 2016)

Another individual, from Ba Vi foothills (December 2016)

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