Acantholyda hieroglyphica (Christ, 1791)
web-spinning pine-sawfly
on Pinus
Pinus spec., Belgium, prov. prov. Namur, Doische, Matagne-la-Grande, 26.v.2018 © Stéphane Claerebout
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, pinaster, pinea, sylvestris.
phenology
Mostly univoltine, sometimes bivoltine.
distribution within Europe
references
van Achterberg & van Aarten (1986a), Hoop (1983a), Midtgaard (1986a), Pschorn-Walcher & Altenhofer (2000a), Savina & Chevin (2012a), Stritt (1952a), Taeger, Altenhofer, Blank, ao (1998a, Toimil & Acosta (1995a).