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Argent and sable

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Kingdom  Animalia
Order  Lepidoptera
Genus  Rheumaptera
Higher classification  Rheumaptera
Phylum  Arthropoda
Family  Geometridae
Scientific name  Rheumaptera hastata
Rank  Species
Argent and sable cdn1arkiveorgmedia40406C5DB62E894A8A8E440
Similar  Rheumaptera, Butterflies and moths, Geometer moth, Epirrhoe tristata, Epirrhoe

Keih smittari rheumaptera hastata


Argent and sable moths or Rheumaptera hastata are day flying moths of the Geometridae family, with distinctive black and white colourings. They tend to live on wetlands and hillsides. The larvae spin together the leaves of their food plants (such as birch and bog myrtle) to form their cocoons. It was named argent and sable in 1778. Argent and sable refers to the heraldic color names for black and white. Their distribution is Holarctic.

Contents

Argent and sable Argent amp Sable Rheumaptera hastata UKMoths

Distribution

Argent and sable Bestimmungshilfe des Lepiforums Rheumaptera Hastata

The species occurs in almost all parts of Europe. The distribution area stretches over the Northern Asia to the Russian Far East and large parts of China on to Japan. The species occurs in large parts of North America. Currently three subspecies are distinguished Rheumaptera hastata hastata, Rheumaptera hastata nigrescens and Rheumaptera hastata thulearia.

Description

Argent and sable Rheumaptera hastata Insecta Lepidoptera Geometridae

The wings have a black ground colour with variable white pattern elements. A wider inner cross and a narrow basal cross line are typical. The dark midfield is traversed by white patches, which may be continuous. The outer cross line forms a wide white band, which usually has a row of black dots. In the black area of the margin is a wavy line broken into white stains, which forms an arrow - or spearhead-shaped element (hastata is Latin for spear-shaped). The fringes are black and white patched. The pattern of the hind wing is similar to the front wing. In some forms the black tone is reduced on a few black stains.

Variation

Argent and sable Bestimmungshilfe des Lepiforums Rheumaptera Hastata

C. hastata is extremely variable and splits up into several local race the name-typical form, is large, with the median band strongly broken behind the middle, the postmedian white bands broad, the "hastate" white marks in the middle of the distal area well developed. -ab. laxata Krulik has the white areas still further widened, the postmedian band much broader than usual, the black median markings narrowed and broken, no black dots in the postmedian band. ab. demolita Prout is a more extreme form, the black median band only remaining as a small patch on the discocellulars and a small one at the hindmargin.

Argent and sable Rheumaptera hastata Argent and Sable YouTube
Argent and sable Rheumaptera hastata

References

Argent and sable Wikipedia


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Epirrhoe
Epirrhoe tristata
Geometer moth
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