Arge pagana
| Arge pagana | |
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| Species: | A. pagana
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| Binomial name | |
| Arge pagana (Panzer, 1798)
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Arge pagana is a sawfly in the family Argidae. It is known by the name "large rose sawfly" although the related species Arge ochropus is also known by this name
Description
Arge pagana can reach a length of about 1 cm. Wings and veins on the wings are black, often with blue metallic sheen. Pronotum and legs are also black. Its most conspciuous feature is a large rounded yellow abdomen. It has a black head and thorax and the legs are largely black. Adults feed on nectar and pollen from Tanacetum vulgare and Heracleum sphondylium.
The eggs are laid on roses. Larvae appear on the first half of July and they acquire their full size at the end the same month. They reach about 25 mm and are pale green with black dots and a yellow head. These larvae are gregarious and live in colonies feeding on leaves of roses (Rosa acicularis). The pupal period is very short as the larva, buried from July 20 to 25, provides the perfect insect in the first days of August. During the year there may be two, rarely three generations of insects.
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Larva -
Scar on the shoot of rose after the deposit of eggs -
A. p. stephensii, Oxfordshire
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Distribution
This species can be found in the Palearctic ecozone.
Subspecies
- Arge pagana pagana (Panzer, 1798)
- Arge pagana stephensii (Leach, 1817)
References
- Bulletin de la Société des sciences naturelles de l'Ouest de la France, 1902
- Biolib
- Fauna europaea
- Funet.fi
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