Micropterix osthelderi Heath, 1975 Species
Last modified: May 16, 2026, 6:14 p.m.
Only known from 1 specimen in 1898, but recently rediscovered again in LG.
Details
- Classification
- Family: Micropterigidae > Genus: Micropterix > Species: Micropterix osthelderi
- Vernacular names
- Bergoermot (NL), Osthelders Urfalter (DE)
- Status
-
Native
Only known from 1 specimen at RBINS at Brussels (body and right wing) collected at Tambou (sic) on 1898-05-01 by de Crombrugghe, but was then incorrectly identified by him as Micropterix tunbergella (Fabricius, 1787).
Distribution
Imago
Wingspan male 9–10 mm, female 10–12 mm. A rather big species with basal dull gold markings, median crossband touching both wing margins and not widening towards the costa, gold-shimmering scales present on apical and costal spots and at the wing margin.
Museum specimens
Specimens in nature
No pictures yet!Genitalia
Male genitalia are fairly characteristic, whereas female genitalia are hardly sclerotized, and the 8th segment can be of limited use to determine.
Bionomics
Adults are diurnal and usually active in the sunshine, where they visit flowers and feed on pollen.
Flight periods
Adults are on the wing from late April to early June, exceptionally later.
Observed on
Hitherto unknown.
Habitat
Inhabits mixed coniferous woodland and damp terrain, often in more acidic environments.
