Chrysoesthia sexguttella
Chrysoesthia sexguttella | |
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Species: | C. sexguttella
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Binomial name | |
Chrysoesthia sexguttella (Thunberg, 1794)
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Chrysoesthia sexguttella, common name the orache leafminer moth, is a moth in the family Gelechiidae. It is found in all of Europe, east to southern Siberia,[1] as well as the north-eastern parts of North America, where it might be an introduced species.
The wingspan is 8–10 mm. The head is metallic brassy-grey. Forewings are dark purplish-grey, mixed with black, with some whitish scales ; a yellow subdorsal spot in the middle, and a smaller one in disc posteriorly; an ill-defined ochreous-white tornal spot, and another on costa at 3/4. Hindwings are grey. The larva is yellow-whitish; dorsal line brownish; lateral line of orange -reddish spots; head pale brown; plate of 2 blackish.[2]
Adults are on the wing from May to June, and again from August to September. There are two generations per year.
The larvae mine the leaves of Atriplex species (including , Atriplex hastata, Atriplex hortensis, Atriplex littoralis, Atriplex prostrata, , Atriplex patula and ), Chenopodium species (including Chenopodium album, Chenopodium bonus-henricus, Chenopodium giganteum, Chenopodium glaucum, , Chenopodium murale, Chenopodium opulifolium, Chenopodium polyspermum, Chenopodium quinoa, and Chenopodium vulvaria), Amaranthus blitum, Amaranthus caudatus, Bassia scoparia and Spinacia. They form a contorted gallery on the surface of the leaves.
Parasitoids[]
is a larval-pupal ectoparasitoid of Chrysoesthia sexguttella. The female of P. gyamiensis lays a single egg on the skin of the host larva or nearby it, without any significant preference for a particular variant. The presence of long hairs on its body provides the newly hatched first larval instar with high mobility.[3]
Life cycle[]
Larva
Older larva
Pupa with and without cocoon
References[]
- ^ Junnilainen, J. et al. 2010: The gelechiid fauna of the southern Ural Mountains, part II: list of recorded species with taxonomic notes (Lepidoptera: Gelechiidae). Zootaxa, 2367: 1–68. Preview
- ^ Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf
This article incorporates text from this source, which is in the public domain. Keys and description
- ^ The preimaginal stages of Pnigalio gyamiensis Myartseva & Kurashev, 1990 (Hymenoptera, Eulophidae), a parasitoid associated with Chrysoesthia sexguttella (Thunberg) (Lepidoptera, Gelechiidae)
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External links[]
- Moths described in 1794
- Chrysoesthia
- Moths of Asia
- Moths of Europe
- Moths of North America
- Apatetrinae stubs