Geoica utricularia (Passerini, 1856),

Albrecht, Anders Christian, 2015, Identification guide to Nordic aphids associated with mosses, horsetails and ferns (Bryophyta, Equisetophyta, Polypodiophyta) (Insecta, Hemiptera, Aphidoidea), European Journal of Taxonomy 145, pp. 1-55: 21-22

Geoica utricularia (Passerini, 1856)  Edit

Fig. 17

Diagnosis

Apterae 1.2–2.2 mm, cream to light brown, dusted with white wax. Legs and antennae short and stout, tarsi two-segmented. Body with numerous brown spatulate hairs. Dioecious, alternating between leaf

galls on pistachio Pistacia  Edit ( Anacardiaceae  Edit ) and grasses ( Poaceae  Edit ). In Northern Europe anholocyclic on grass roots ( Poaceae  Edit ). I have observed a few individuals feeding on Polytrichum commune  Edit * ( Polytrichaceae  Edit ) in a Lasius flavus  Edit nest mound during extreme drought when the grasses had dried out. Always accompanied by Lasius  Edit ants.

Distribution

D F S.

Recorded moss host

Polytrichaceae  Edit Polytrichum commune  Edit (occasionally).

Figures

Fig. 17. Geoica utricularia (Passerini, 1856). Apt. on grass root.