Sorhagenia janiszewskae Riedl, 1962 Species
Last modified: May 2, 2024, 7:08 p.m.
A very rare species in Belgium. For a certain identification, study of the genitalia is necessary, especially because of its resemblance with Sorhagenia rhamniella and Sorhagenia lophyrella , living on the same foodplants.
Details
- Classification
- Family: Cosmopterigidae > Subfamily: Chrysopeleiinae > Genus: Sorhagenia > Species: Sorhagenia janiszewskae
- Vernacular names
- Wegedoorntwijgmot (NL), Janiszewskas Prachtfalter (DE)
- First mention in Belgium
- Wullaert S. 2015. Melding van minerende en andere zeldzame Lepidoptera in België met 10 nieuwe soorten voor de Belgische fauna (Nepticulidae, Tineida, Momphidae, Cosmopterigidae, Gelechiidae, Tortricidae en Geometridae). — Phegea 43(3): 50–63. On page 56. view page
- Status
-
Native
Distribution
Imago
Museum specimens
No pictures yet!Specimens in nature
Genitalia
Caterpillar
The larvae are pale grey with a dark head.
Cocoon/pupa
Pupa light brown in a slight spinning.
Bionomics
Young larvae feed in a tunnel in the emerging shoots, later they make a gallery in young twigs eating the soft center. Infected shoots show subtle inhibited growth (shorter than other shoots, brown or withering top leaves and/or flower buds). In a later phase, a hole is often made from which frass is ejected.
Pupation in a slight spinning amongst debris on the ground.
The adults come to light.
Flight periods
The adults fly in one generation a year from mid-June till the end of August.
Observed on
- Host plant (species):
- Frangula alnus and Rhamnus cathartica
- Host plant (genera):
- Rhamnus
Oligophagous on Rhamnaceae.
Habitat
It inhabits heathland and woodland.
