Calamagrostis epigejos, Denmark © Simon Haarder

larvae

puparium; it later turns blackish brown

gall

Within the leaf sheath one to four shallow saddle-shaped depressions of the culm. Each depression is 10-12 mm long, surrounded by a strong rim, covered by a blackish epidermis, and containing one orange larva.

The larva is described by Ertel (1975a); spatula with a single apex.

spatula (from Kieffer, 1901a)

hostplants

Poaceae, monophagous

Calamagrostis canescens, epigeios.

synonyms

Oligotrophus bimaculatus; Mayetiola calamagrostidis Kieffer, 1909; M. spinulosa Kieffer, 1909.

references

Buhr (1964b), Dauphin & Aniotsbehere (1997a), Ertel (1975a), Gagné (2010a), Kieffer (1901a, 1909a), Redfern & Shirley (2011a), Roskam (2009a), Roskam & Carbonnelle (2015a), Rübsaamen (1895a,b), Skuhravá & Skuhravý (2021a: 58), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Meyer (2014a).