 Wingspan
Male: 64 - 72mm
Female: 70 - 78mm |
|
Red Admiral
|
|
Vanessa atalanta
|
|
|
|
Linnaeus, 1758 |
|
Ref: 1590 |
|
| Superfamily: | Papilionoidea |
| Family: | Nymphalidae |
| Subfamily: | Nymphalinae |
| Genus: | Vanessa |
| Subgenus: | |
| Species: | atalanta |
|
 |
 |
|
Male |
|
 |
|
Male Underside |
|
 |
|
Female |
|
|
|
Female Underside |
|
The Red Admiral is a frequent visitor to gardens throughout the British Isles and one of our most well-known butterflies. This butterfly is unmistakable, with the velvety black wings intersected by striking red bands. This butterfly is primarily a migrant to our shores, although sightings of individuals and immature stages in the first few months of the year, especially in the south of England, mean that this butterfly is now considered resident. This resident population is considered to only be a small fraction of the population seen in the British Isles, which gets topped up every year with migrants arriving in May and June that originate in central Europe. Unfortunately, most individuals are unable to survive our winter, especially in the cooler regions of the British Isles. The number of adults seen in any one year is therefore dependent on the number of migrants reaching the British Isles and numbers fluctuate as a result. In some years this butterfly can be widespread and common, in others rather local and scarce.
This is a widespread species and can be found anywhere in the British Isles, including the Orkneys and Shetland.
Adults may be seen throughout the year but there is build up in May and June as migrants arrive from the continent. These breed and give rise to the next generation of adults with a peak of emergence between mid-August and early October. There is a single brood each year. 
This butterfly can be found almost anywhere, from the seashore and town gardens, to the tops of the highest mountains.
The primary larval foodplant is Common Nettle (Urtica dioica). Hop (Humulus lupulus), Pellitory-of-the-wall (Parietaria judaica) and Small Nettle (Urtica urens) are also used.
Adults feed primarily on Bramble (Rubus fruticosus agg.), Fleabane (Pulicaria dysenterica), Hemp Agrimony (Eupatorium cannabinum), Honeydew / Sap, Ivy (Hedera helix), Privet (Ligustrum vulgare), Teasel (Dipsacus fullonum) and Thistles (Cirsium spp. and Carduus spp.).
The adults use a wide variety of nectar sources, including Buddleia, Ivy blossom and Bramble. They are also partial to rotting fruit, such as plums that have fallen from the tree. When resting on the ground or on a tree trunk, the undersides of the adults provide superb camouflage, making them almost invisible as they blend into the background. Egg-laying females are very easy to spot. The powerful flight is replaced by a slow and deliberate flight as she flits from leaf to leaf of the foodplant, depositing an egg if the leaf is deemed suitable. Egg-laying is typically interspersed with periods of nectaring and resting.
Description to be completed
![Red Admiral - aberration - Unknown location - Sep-05 [David Dennis]](image_generator.php?src=phpBB/gallery/images/cache/885c653a08b2cd300adf4750f9cf2f2c.jpg&r=223&g=246&b=216 "Red Admiral - aberration - Unknown location - Sep-05 [David Dennis]") |
ab. klemensiewiczi
Photo © David Dennis
|
|
Eggs are laid singly on the upper surface of a leaf of the foodplant and several eggs are often laid in the same nettle patch. They are light green at first, but turn darker as the larva develops. Eggs hatch in about a week.
The larva lives within a tent formed by folding the edges of a leaf together, emerging only to feed. As the larva grows it will form a new tent. The larva of this species is one of the easiest to find in a nettle patch, since its location is given away by a series of tents that are highly-visible to the trained eye. The larva is usually found in the largest of these tents. The larva has several colour forms, ranging from black, to greenish-brown to a very pale yellowish-green. This stage lasts between 3 and 4 weeks, depending on temperature.
Several leaves are drawn together with silk to form a tent within which the larva pupates. It hangs head-down, attached to the roof of the tent by the cremaster. The head of the pupa is quite blunt - whereas those of closely-related species often have two prominent horns. This stage lasts between 2 and 3 weeks.
No similar species found.
Click here to see the distribution of this species overlaid with specific site information. Alternatively, select one of the sites listed below.
Long term distribution and population trends both show an increase and this species is not, therefore, a species of conservation concern. |
| Not Listed |  |  |
From The State of Butterflies in Britain and Ireland and the UK Biodiversity Action Plan (UK BAP) (2007 review).
The following links provide additional information on this butterfly.
The species description provided here has been derived from the author's own observations and the information contained in the following works:
- A Natural History of British Butterflies, by F.W.Frohawk.
- British and Irish Butterflies, by Adrian M. Riley
- South's British Butterflies, by T.G.Howarth (which is based extensively on the classic work, "The Butterflies of the British Isles", by Richard South).
- The Butterflies of Britain and Ireland, by Jeremy Thomas and Richard Lewington.
- The Millennium Atlas of Butterflies in Britain and Ireland, by Jim Asher, Martin Warren, Richard Fox, Paul Harding, Gail Jeffcoate, Stephen Jeffcoate.
- The Moths and Butterflies of Great Britain and Ireland Volume 7 (1) Hesperiidae to Nymphalidae (the Butterflies), by A. Maitland Emmet and John Heath (editors).
- The State of Butterflies in Britain and Ireland, Richard Fox, Jim Asher, Tom Brereton, David Roy and Martin Warren.
Site brought to you by Webified
Copyright © Peter Eeles 2002-2010
All rights are reserved
Administrator Login
|
![Red Admiral - aberration - Unknown location - Sep-05 [David Dennis]](phpBB/gallery/images/upload/885c653a08b2cd300adf4750f9cf2f2c.jpg "Red Admiral - aberration - Unknown location - Sep-05 [David Dennis]")
![Red Admiral - ovum - Unknown location - 2003 [REARED] [Reg Fry]](phpBB/gallery/images/upload/9f8a2d1680ee43d696c248974bb60a4c.jpg "Red Admiral - ovum - Unknown location - 2003 [REARED] [Reg Fry]")
![Red Admiral - pupa - Thatcham - 07-Sep-06 (0775) [REARED]](phpBB/gallery/images/upload/2ac8bb3babe15584ca582f4bb4af1914.jpg "Red Admiral - pupa - Thatcham - 07-Sep-06 (0775) [REARED]")
![Red Admiral - pupa - Thatcham - 07-Sep-06 (0776) [REARED]](phpBB/gallery/images/upload/6fd29f7bf07ff2d5219c463e0a3ba3c1.jpg "Red Admiral - pupa - Thatcham - 07-Sep-06 (0776) [REARED]")
