Orchestes pilosus explained

Orchestes pilosus is a beetle of the family Curculionidae.

Distribution and describing

It is found in Europe and was first described by Johan Christian Fabricius in 1781. The larvae are leaf miners on oak (Quercus species).

Description

The mines are at the edge of a leaf, between two lobes and are found from April to June on the following species; Turkey oak (Quercus cerris), holm oak (Quercus ilex), sessile oak (Quercus petraea), downy oak (Quercus pubescens) and pedunculate oak (Quercus robur). The mines of Dyseriocrania subpurpurella are similar but when mature are much larger and not as dark, because the frass in O. pilosus mines stick to the inner surface of the mine.^{[1] [2]}

Notes and References

1. Web site: Edmunds . Rob . Orchestes pilosus (Fabricius, 1781) . British leafminers . 20 January 2022.
2. Web site: Edmunds . Rob . 2.001 Dyseriocrania subpurpurella (Haworth, 1828) . British leafminers . 31 January 2022.