Acantholyda hieroglyphica (Christ, 1791)

web-spinning pine-sawfly

on Pinus

parasite

Larvae solitary or in small group in a silken tube among the needled; the spinnings are filled with masses of frass. Pupation, without a cocoon, in the soil. Oviposition as one egg per needle. Preference for 3-4 years old trees.

host plants

Pinaceae, monophagous

Pinus cembra, contorta, mugo.

phenology

Mostly univoltine, sometimes bivoltine.

distribution within Europe

(PESI, 2020).

references

van Achterberg & van Aarten (1986a), Pschorn-Walcher & Altenhofer (2000a), Savina & Chevin (2012a).

mod 19.iii.2020