Scrobipalpa obsoletella (Fischler von Röslerstamm, 1841)

summer groundling

mine

The larve bores in the pith of part the stem, that takes a fusiform shape. The frass is ejected through a hole in the stem, always at the base of the leaf or side branch. According to Hering (1957a) the larva makes excursions into the leaves, making irregular blotch hmines. However, according to Jansen this is only rarely the case, and Bland ao (2002a) do not mention this behaviour altogether.

In Hering’s time the difference between obsoletella and S. nitentella was incompletely known. Both species were even synonymized in 1961 by Sattler, and only in 1988 this synonymy was reversed by Povolný. Conceivably Hering described the biology of a mix of both species.

hostplants

Amaranthaceae, oligophagous

Atriplex glabriuscula, halimus, litoralis, tatarica; Chenopodium.

phenology

Larvae in June – July and again from September; hibernation as larva (Jansen, 1999a).

BENELUX

BE recorded (Phegea, 2009).

NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).

LUX recorded (Fauna Europaea, 2009).

distribution within Europe

All Europe (Fauna Europaea, 2009).

larva

Light green when young, yellowish green later. Head light brown, pronotum blackish brown with a whitish border.

synonyms

Gnorimoschema obsoletellum.

notes

Much more than Sc. nitentella a species of ruderal vegetations (Povolný,1988a).

references

Bland ao (2002a), Buhr (1964a), Hering (1957a, 1963a), Huemer & Karsholt (2010a), Jansen (1999a), Kozlov & Kullberg (2006a), Kuchlein & Donner (1993a), Kaitila (1996a), Kuchlein & de Vos (1999a), Leutsch (2011a), Povolný (1988a), Sattler (1961a), Schütze (1931a), Skala (1950a), Szőcs (1977a), Tomasi (2014a), Wegner (2010a).

mod 12.ix.2018