Diuraphis holci (Hille Ris Lambers, 1956)

on Holcus

gall

The highest internodes are shortened, the corresponding leaf sheaths are shorter, wider and distinctly inflated, their blades are short with a blunt tip. Within the leaf sheath live slender, wax-powdered aphids; they are 1-2 mm long, green, with a dark green head.

hostplants

Poaceae, monophagous

Holcus lanatus, mollis.

Mainly H. lanatus.

synonyms

Brachycolus, Holcaphis, holci.

references

Blackman & Eastop (2014), Börner & Franz (1956a), Buhr (1964b), Heie (1992a), Hille Ris Lambers (1956a), Roskam (2009a), Tambs-Lyche (1970a), Tomasi (2012a, 2014a).

mod 13.i.2019