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Wall Brown; Saltacercas

Lasiommata megera

Description:

Nymphalidae. The male of this species is territorial and will inhabit a particular area, such as a path, hedgerow or roadside verge, waiting for a passing female. Males will typically perch in a favoured position but will, in sunny and warm conditions, adopt a strategy of patrolling in order to find a mate. All passing insects are investigated and rival males will fly high into the air before coming back to the ground a few seconds later. The female is much more sedentary and the less-conspicuous of the two sexes. Both sexes are avid nectar feeders and will feed from any available flower. The Wall Brown gets its name from the characteristic behaviour of resting with wings two-thirds open on any bare surface, including bare ground and, of course, walls! The basking behaviour of this butterfly allows it to benefit from the full warmth of the sun whose rays shine directly on the butterfly, but also get reflected back onto the butterfly from whichever surface it is resting on. This habit allows the butterfly to raise its body temperature sufficiently high for it to fly. In particularly hot weather, however, such basking is avoided and the butterfly may even retreat to a suitably-shaded spot to avoid overheating.

Habitat:

Spotted at an oak forest (Q. pyrenaica). Reserva de la Biosfera del Real Sitio de San Ildefonso-El Espinar

Notes:

Camera Model: NIKON D500. Exposure Time: 1/640 sec.; f/13; ISO Speed Rating: 800. Focal Length: 300.0 mm. No flash fired. DSC_2642, 2645

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2 Comments

arlanda
arlanda 2 weeks ago

Thanks Bernadette

Bernadette S
Bernadette S 3 weeks ago

Great info! Thanks for sharing.

Castilla y León, Spain

Lat: 40.71, Long: -4.24

Spotted on Jul 1, 2018
Submitted on Nov 15, 2018

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