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Green Hairstreak


Green Hairstreak
Photo Information
Copyright: David Robinson (daveeho) Silver Note Writer [C: 1 W: 0 N: 16] (141)
Genre: Animals
Medium: Color
Date Taken: 2006-05-09
Categories: Insects
Camera: Canon 1D Mark II, 28-135 IS f3.5-5.6
Exposure: f/8, 1/500 seconds
Photo Version: Original Version
Date Submitted: 2007-02-26 4:29
Viewed: 3088
Points: 6
[Note Guidelines] Photographer's Note
The Green Hairstreak never displays its brown upperside except when in flight. The green colour of the underside, like that of the blues and coppers, is not made up of pigments, but is produced by light refracting and reflecting form a microscopic lattice within the wing scales. The colours seen vary with the angle of view and the directional qualities of the light. The Green Hairstreak can thus appear to be metallic apple-green, turquoise or emerald, when viewed from various angles. Some individuals have plain undersides, but on others, the hindwings are marked with a row of white dots. The sexes are almost identical, but the male has a patch of scent scales in the discal cell of the upperside forewing, and the wings are not quite so rounded as those of the female.

Foodplants

The main foodplants are Bilberry (Vaccinium myrtillus), Broom (Cytisus scoparius), Common Bird's-foot-trefoil (Lotus corniculatus), Common Rock-rose (Helianthemum nummularium), Dyer's Greenweed (Genista tinctoria) and Gorse (Ulex europeaus). Bramble (Rubus fruticosus), Buckthorn (Rhamnus cathartica), Cross-leaved Heath (Erica tetralix) and Dogwood (Cornus sanguinea) are also used.
Habitat

The butterfly occurs throughout most of the British Isles, but is quite localised, being mainly found on scrubby hillsides or warm sheltered valley bottoms. In southern England it particularly favours the lower slopes of south-facing hillsides where there are hedgerows of hawthorn, blackthorn, elder or gorse. It also occurs in lesser numbers along disused railway cuttings, in woodland clearings, old chalk quarries, and on dry heathlands. In northern Britain the butterfly is found, sometimes in large numbers, on moors, sphagnum bogs and wet lowland heaths. There are also many small colonies around the northern shores of Scottish lochs.

Ovum

Females roam widely over their habitat, laying their eggs singly on the leaf tips or flower buds of the various foodplants. At Levin Down in Sussex, I watched a particular female ovipositing over a half hour period on a hot sunny morning in May. It flew back and forth, covering an area of about 20 x 50 metres, carefully selecting each egglaying site, always choosing to lay on leaves of rockrose, although birdís-foot-trefoil and other known foodplants were present. Almost all the eggs were laid on plants growing on ant-hills. This may be simply because ant-hills tend to be warmer than surrounding areas, but could be influenced by a probable association between the larva and ants - many Lycaenid larvae are "milked" by ants, which drink a secretion produced from a gland on the larva.
This photograph was taken at a local reserve near Carnforth Lancashire.

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Critiques [Translate]

  • Great 
  • anel Gold Star Critiquer/Gold Note Writer [C: 3053 W: 3 N: 8715] (40574)
  • [2007-02-26 15:15]

hello David,
These butteflies aren't easy at all to be photographed, because of the explanation you give at the beginning of your note. So I think that your picture is pretty good. I like specially the fine colours of the Campanula-flowers and the special green of the butterfly.
Best regards
Anne

  • Great 
  • Maite Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 998 W: 65 N: 1270] (5199)
  • [2007-02-27 9:37]

Hello David
What a wonderful picture!! I love the POV, colors and composition. It has excellent sharpness and details, and a very good DOF. The butterfly and the flowers are gorgeous.
A superb job!
My compliments and thank you very much for sharing.
Best wishes
Maite

Hi Dave,
A good photo taken with a macro lens I suspect. you did well to get close enough. The feelers, head and legs are pin sharp with the focus just fading away at the extremes of the wings.
good picture, I like it.
Peter

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