Laingia psammae Theobald, 1922

Hemiptera, Aphididae

on Poaceae (Cyperaceae)

Laingia psammae: gall on Calamagrostis epigejos

Calamagrostis epigejos, Belgium, prov. Namur, Romedenne © Sébastien Carbonelle

Laingia psammae: aptera

aphid

Laingia psammae on Arrhenatherum elatius

Arrhenatherum elatius, Polen, Bialowieza © Sébastien Carbonelle

Laingia psammae on Arrhenatherum elatius

the elongated aphids

gall

the aphids are unusually elongated, greyish green or dirty yellow, 2-3 mm long. According to Blackman & Eastop they live primarily in the inflorescence of marram grass in the dunes, but Buhr writes that they live in the inflated leaf sheaths of a number of grasses. This species has no hostplant alternation.

hostplants

Poaceae, broadly oligophagous

Agrostis stolonifera; Alopecurus genniculatus, pratensis; Ammophila arenaria & subsp. arundinacea; Arrhenatherum; spec.; Calamagrostis arundinacea, epigeios, villosa; Corynephorus canescensp; Deschampsia cespitosa; Elytrigia repens; Glyceria fluitans; Holcus lanatus; Koeleria macrantha; Leymus arenarius, secalinus, Panicum spec.; Phleum pretense; Setaria spec.; Triticum aestivum.

In the Iberian peninsula also on Carex acutiformis (Blackman & Eastop). The main host plant is em>Calamagrostis epigeios (Wieczorek).

references

Blackman & Eastop (2015), Börner & Heinze (1957a), Buhr (1964b), de la Peña, VandommV & Frago (2014a), Stroyan (1977a), Tomasi (2014a), Vandegehuchte, de la Peña & Bonte (2010a), Wieczorek (2010a).

11/05/2017

pub 13.v.2017 · mod 28.vi.2017