Protesilaus macrosilaus leucones (background) compared with P. protesilaus archesilaus (foreground) P1190722b

            In this photo I have indicated the white margins that extend almost from tooth to tooth on the hindwing of Protesilaus macrosilaus leucones (the specimen at the back), and also the narrow black bars next to them. Compare these margins with the same in the foreground specimen, P. protesilaus archesilaus, where they are black, and this black forms a wide band. These white margins are the primary useful character to identify Protesilaus macrosilaus based only on a ventral photo, or a dorsal where the base of the forewings is not visible. In spread museum specimens, the forewing provides a very useful ID character: black band number 2 (counting from the base of the wing) reaches the inside margin in Protesilaus macrosilaus leucones (but not in nominate P. macrosilaus macrosilaus), while this band 2 stops short of the inner margin in P. protesilaus archesilaus, reaching only just below the first major wing vein (vein "2A"). The genitalia of the two species are very different, and the male HW scent patch is a darker grey in Protesilaus macrosilaus leucones (personal unpublished observations), and I have seen unpublished results for the DNA, also indicating they are clearly two species. NB: The white HW margins of P. macrosilaus are often a little, or very, obscured by black scaling, so that this character is not always very obvious, and the adjacent black bar can therefore appear wider, close to that of P. p. archesilaus. This is an example of why it is so difficult to positively ID many Neotropical butterfly species from a photo alone, especially based on one wing surface only. 
   

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Taken on: February 3, 2020

Tags:

Protesilaus

macrosilaus

archesilaus

Antioquia

Colombia

Butterflies

Mariposas

Papillons

Schmetterlinge

Farfalle

Borboletas

蝶

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Sets appears in: • Colombia 2020: February 3

Camera: Panasonic DMC-FZ330, f/5.6, 1/250 sec, 107.6mm, ISO 100 (more info) (hide info)

Camera:	Panasonic DMC-FZ330
Aperture:	f/5.6
Exposure Time:	0.004 sec (1/250)
Focal Length:	107.6mm
ISO:	100
Exposure Bias:	+0.33 EV
Flash:	Off, Did not fire
Exposure Program:	Aperture-priority AE
Exposure Mode:	Auto
Metering Mode:	Center-weighted average
White Balance:	Auto
Saturation:	High
Sharpness:	Hard
Color Space:	sRGB
Software:	ACDSee Ultimate 2020
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