Mountain Dappled White (Euchloe simplonia)
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2018 photographs highlighted in green. Click on any photograph to go to an enlarged picture, or simply scroll down the page.
A butterfly of high altitudes, the normal minimum being 1500m (exceptionally as low as 1000m according to Lafranchis) but usually some way higher than 1500m. This makes identification a lot simpler as the other two Euchloe species that occur in France, the (Western) Dappled White (E. crameri) and the Portuguese Dappled White (E. tagis) are nearly always found below this level.
|The simplonia upf discoidal spot reaches the costa and is fused along it, and the upf apical marks are more diffuse, especially the female. There are also some subtleties of the markings on the unh. It is univoltine (single-brooded) and for a mountain butterfly it has a relatively early flight period in the Alpes of June to July, according to altitude.|
|36217||M||a couple engaged in courtship, the same pair as in 36209, but in 36217 the male is on the ground as indicated by the narrower apical markings and discoidal spot. They were constantly fluttering, so any photograph was essentially a quick snap.||2020|
|41867||M||a male, snapped while nectaring. Species of the Euchloe genus are often very difficult to photograph as they have a tendency to fly non-stop.||2070|
|36209||F||the same pair as in 36217 except that it is the female that is on the ground and relatively motionless as the male flutters above.||2020|
|36045||F||a female. 36076 is the underside.||2040|
a female, quite worn at the end of the flight period but clearly showing the large discoidal spot and the very diffuse apical mark.
|30538||F||a female, the yellowish tinge to the uph being apparent. It is on the larval hostplant, Biscutella laevigata (Buckler Mustard).||2020|
|41333||M||a male underside, roosting in an overcast spell.||1960|
a female underside, very yellow-green in colour.
|30345||F||a female, I believe.||1700|
|36076||F||a female, known because 36045 is the upperside.||2040|