Fig. 7

Macrosiphum calvulum male detected on Svalbard archipelago. (A) living specimen on the upper side of the host plant, polar willow (Salix polaris). (B) fresh specimen. (C) slide-mounted specimen.
Macrosiphum calvulum male detected on Svalbard archipelago. (A) living specimen on the upper side of the host plant, polar willow (Salix polaris). (B) fresh specimen. (C) slide-mounted specimen.