Molinia caerulea, Belgium, prov. Hainaut, Chimay, Virelles, Aulnaie © Sébastien Carbonnelle

gall, lightly opened

puparium in the gall

detail

several puparia together (the white one is teneral)

larva

puparium

gall

Just above the ground, within the leaf sheath, the culm has one or more oval shallow depressions. Each one has a low rim; they not covered by epidermis. In each depression a 3-4 mm long, white, larva, or its puparium.

The larva is described by Ertel (1975a).

spatula (from Kieffer, 1901a)

hostplants

Poaceae, monofaag

Molinia caerulea.

synonyms

Oligotrophus moliniae.

references

Buhr (1965a), Carbonnelle & Guiguet (2018a), Dauphin & Aniotsbehere (1997a), Ertel (1975a), Gagné & Jaschhof (2014a), Houard (1908a), Kieffer (1901a), Redfern & Shirley (2011a), Rübsaamen (1895a,b), Skuhravá, Skuhravý & Meyer (2014a).