Cydia pactolana (Zeller, 1840)

scarce spruce piercer

on Picea

gall

the larva bores in the bark, generally just below a whorl of side branches; mostly on quite young saplings. The bark swells, ejected frass is mixed with extruded resin.

host plants

Pinaceae, oligophagous

Picea abies, pungens, sitchensis.

Several sources mention the species also from Larix but that probably refers to Cydia grunertiana.

larva

See pictures on Lepiforum, also Swatschek.

pupa

See Patočka & Turčáni.

synonyms

Grapholitha, Laspeyresia, pactolana.

references

Bradley, Tremewan & Smith (1979a), Buhr (1965a), Disqué (1905a), Gielis Huisman, Kuchlein ao (1985a), Hancock & Bland (2015b), Lepiforum (2019), Meijerman & Ulenberg (2000a), Patočka & Turčáni (2005a), Pinzari, Pinzari & Zilli (2006a), Schütze (1931a), Swatschek (1958a), Szőcs (1977a), Thomann (1956a).