Sphenella marginata (Fallén, 1814)

on Jacobaea, Senecio, Tephroseris

Sphenella marginata: gall on Senecio vulgaris

Senecio vulgaris, Hoorn (NH) © Koen van Zoest

Sphenella marginata: galls on Senecio vulgaris

several capitula in an inflorescence were infested

gall

The flower head is on all sides widened at is base, resulting in a cone shape; the bracts are widened. In the flower head one white maggot, or a brown puparium.

hostplants

Asteraceae, narrowly oligophagouus

Jacobaea alpina, aquatica, erucifolia, paludosa, vulgaris; Senecio inaequidens, leucanthemifolius subsp. vernalis, ovatus, squalidus subsp. rupestris, sylvaticus, viscosus, vulgaris; Tephroseris crispa.

synonyms

Tephritis marginata.

references

Baugnée (2006a), Bjeliš (2007a), Buhr (1965a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Ebejer (2015a), Houard (1909a), Kieffer (1891a, 1895b), Niblett (1940a), Redfern & Shirley (2011a), Smit (2010a), Spooner & Bowdrey (2012a), Tomasi (2014a), White (1988a).

mod 14.viii.2018