Mountain Green-veined White (Pieris bryoniae)
next page return to list
2021 photographs highlighted in yellow. Click on any photograph to go to an enlarged picture, or simply scroll down the page.
Bryoniae is a high altitude species closely related to the Green-veined White (P. napi). The bryoniae altitude range is a minimum of 1000m (Lafranchis says exceptionally 700m) but it is normally found at much higher altitudes. Napi has an altitude range of 0-1800m so it cannot be assumed that any green-veined species seen at high altitudes is bryoniae. It is univoltine (single brooded) in France flying from mid-June to mid-August.
The male strongly resembles the first brood of the male napi. The bryoniae forewing is rather more pointed, the upf apical marks of bryoniae are rather more extensive than napi. According to the Lafranchis ID book (TLID), the key characteristic is that the uph veins of bryoniae are black where they reach the margins, not so for napi.
The unh veins are heavily suffused grey, reaching to the margins, for bryoniae. This is also true for first generation napi, which has heavily suffused unh veins, but not for second generation napi, where the veins are only lightly suffused and do not reach to the margins.
The female has a pale creamy ground colour and is heavily suffused grey to grey-brown. The upf has a grey streak connecting the margin to the post-discal spot, although the ones I have seen have been so heavily suffused, this has been hard to determine. The female is almost impossible to confuse with any other species, even a first brood female napi.
a male, the black lining to the uph veins being quite apparent.
a male, with a suggestion of a post-discal spot in s3.
|40819||M||a male, taking salts from the ground and obliging for a photograph.||1780|
|48283||M||a male, with a rather more solid apical mark than others on this page. It appears to on very wet terrain, usually avoided by puddling males.||1560|
a female, relatively lightly suffused.
a female, more typically heavily suffused.
|26944||F||a female, quite worn, although lightly suffused.||2000|
|36429||F||another female; perhaps they get noticed and seem more common because of the degree of suffusion, whereas males may be confused with other species of whites.||2090|
|45572||F||an unusually strongly marked female, much less suffused than the norm for female bryoniae.||2090|
|47064||F||a particularly dusky female on a rather creamy white background. Quite appealing for a species that would otherwise be considered a little dull by comparison to its more illustrious cousins.||2010|
|33472||M||a male. The veins are heavily suffused and reach the margins, confirming bryoniae.||2040|