Phtheochroa schreibersiana (Frölich, 1828)

scarce gold conch

on polyphagous ?

parasite

The biology is not sufficiently clear, neither is the host plant spectrum. The young larvae initially would live among the leaves, then bore into the young shoots that would slacken.

host plants

Populus nigra; Prunus padus; Ulmus.

phenology

Univotine; hibernation as larva.

distribution within Europe

(PESI, 2019).

larva

Body pale yellowish brown; body yellowish brown; prothoracic plate centrally and along the hind margin darkly punctuated. see Swatschek.

pupa

See Patočka & Turčáni.

synonyms

Hysterosia schreibersiana.

notes

Schütze (1935a) repeatedly found the larvae in the galls of Colopha compressa!

references

Bradley, Tremewan & Smith (1973a), Disqué (1905a), Hancock & Bland (2015a), Patočka & Turčáni (2005a), Schütze (1931a, 1935a), Swatschek (1958a), Wieser (2004a).

mod 3.xi.2019