Isocolus jaceae (Schenck, 1863)

on Centaurea

gall

An achene is transformed into a hard, 3.5 x 2.5 mm large, ovoid, unilocular gall that is fused with the receptacle. Univoltine, pupation and hibernation in the gall.

hostplants

Asteraceae, oligophagous

Centaurea glastifolia, jacea, nigra, paniculata, scabiosa, stoebe; Cyanus montanus.

synonyms

Aulax jaceae.

references

Buhr (1964a), Eady & Quinlan (1963a), Hellrigl (2009a), Hellrigl & Bodur (2015a), Houard (1909a), Melika (2006a), Nieves-Aldrey (2001a), Redfern & Shirley (2011a), Roskam (2009a), Tomasi (2014a).

mod 26.vii.2018