A problematic Borbo/Pseudoborbo

[DaveChiangMai]

Photographed in Mae Hong Son, nw Thailand, mid elevation forest. The single cell spot on upper forewing, two spots on upper hindwing and general spot configuration on the upper forewing to me makes this likely P. bevani, or possibly B. cinnara.

However, the large size and positioning of the spots in a long curve on the under hindwing do not really match either of these species. Closest I can see is P. bevani, but non of my images of this species, nor images in the literature or on the web show this spot size and patterning.

I would be very grateful for the correct ID on this. With thanks.

26151

26152

26153

26154

[Psyche]

It is a female Pelopidas mathias.

Neither B. cinnara nor P. bevani have a spot in HW space 7.
The presence of this spot, large & clear can only happen in Pelopidas.

There are examples of P. mathias with a single cellspot or the HW cellspot missing.
A male Pelopidas showing its FW brand (present only in the male)with the HW cellspot missing.
http://www.jpmoth.org/~dmoth/Butterflies_of_the_world/01_Hesperiidae/Pelopidas_mathias/Pelopidas_mathias.html

The unevenly shaded underside is more typical of P. mathias.
https://www.ifoundbutterflies.org/media_images/2017/124_21146-633-59f98ca05616e-1.jpg

B. cinnara.
https://thaibutterflies.com/wp-content/uploads/2016/07/Borbo-cinnara.jpg

P. bevani.
https://farm7.static.flickr.com/6194/6076978800_c6a6030a9c_b.jpg


TL Seow: Cheers.

[DaveChiangMai]

Many thanks for the clarification and details. I had half expected I might be on the wrong track with Borbo. Much appreciated.