Calamagrostis epigejos, Denmark © Simon Haarder

detail, with spatula

gall

The culm has, not far above a node, one or more elongated-oval shallow depresssions, each surrounded by a low rim, containing an orange yellow larva. Because the culm is surrounded by a leaf sheath the gall is difficult to find.

host plants

Poaceae, oligophagous

Apera spica-venti; Avenella flexuosa; Calamagrostis canescens, epigeios; Dactylis glomerata; Deschampsia cespitosa; Elytrigia repens; Phalaroides arundinacea; Schedonorus giganteus; Trisetum flavescens.

Mainly on Calamagrostis, according to Buhr in that case exclusively on C epigeios.

prosternum with spatula (from Möhn, 1955a)

the prosternum has no spatula (from Möhn, 1955a)

synonyms

Thomasiella calamagrostidis; Lasioptera graminicola Kieffer, 1898.

references

Buhr (1964a, 1965a), Burton, Carbonnelle, Ellis & Schneider (2019a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Haarder, Bruun, Harris & Skuhravá (2016a), Houard (1908a), Kieffer (1901b), Möhn (1955a), Redfern & Shirley (2011a), Roskam (2009a, 2019a), Roskam & Carbonnelle (2015a), Rüsaamen (1893a), Skuhravá (2006a), Skuhravá & Skuhravý (1999a,b, 2021a: 59), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Tomasi (2014a).