Orchestes calceatus (Germar, 1821)

on Betula

Orchestes testaceus and calceatus mines

mines, with cocoons, of Orchestes testaceus on Alnus, (at left) and of O. calceatus on Betula (right) (from Viramo, 1970a).

parasite

Apart from the host plant, the mines of O. calceatus seem indistinguishable from those of O. testaceus.

host plants

Betulaceae, monophagous

Betula nana, pendula, pubescens.

Mainly op B. pubescens.

distribution within Europe

(PESI, 2018).

notes

O. calceatus can be divided in a western European subspecies O. c. semirufus and the typical subscies calceatus in northern and eastern Europe (Viramo, 1970a).

references

Benedikt, Borovec, Fremuth ao (2010a), Delbol (2013a), Heijerman (1993a), Hering (927b), Košťál & Caldara (2013a), Morris (1993a), Rheinheimer & Hassler (2010a), Robbins (1991a), Scherf (1964a), Viramo (1962a, 1970a), Wolf & Fuchs (2014a).

mod 2.v.2019