Myzodium modestum (Hottes, 1926)

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 : 9-10

Myzodium modestum (Hottes, 1926)

Fig. 8

Diagnosis

Apterae 1.3–1.7 mm, shape Myzus -like, bronze to bronzy black; dorsal cuticle heavily sclerotized, rugose; thinly wax-covered below. Juveniles paler, with shorter body, smoother dorsum and more extensive wax dusting, also dorsally. Frontal tubercles well developed, rounded, nodulose. Siphunculi slightly s-curved, with distinct apical constriction and flange. Aduts and juveniles can be found all

year. Peat

bogs, damp depressions in spruce and pine forests, overhanging moss on rock margins. Monoecious. Not ant-attended.

Recorded hosts

Bryaceae : Pohlia ; Grimmiaceae : Racomitrium ; Polytrichaceae : Atrichum undulatum , Polytrichum commune *; Sphagnaceae : Sphagnum (perhaps only interspersed on other mosses).

Distribution

F Gr S.

Figures

Fig. 8. Myzodium modestum (Hottes, 1926). A–B. Apt. and juv. from Polytrichum commune sample.