Adelges (Sacciphantes) viridis (Ratzeburg, 1843)

Albrecht, Anders Christian, 2017, Illustrated identification guide to the Nordic aphids feeding on Conifers (Pinophyta) (Insecta, Hemiptera, Sternorhyncha, Aphidomorpha), European Journal of Taxonomy 338, pp. 1-160 : 12

Adelges (Sacciphantes) viridis (Ratzeburg, 1843)

Figs 22–23

Diagnosis

Overwintering first instar fundatrix dark green; dorsal sclerites with groups of 2–7 ring-like wax pores; prothoracic pleurospinal sclerites almost square.

Al. gallicola about 2 mm, dark olive to blackish with thin greyish wax dusting and transverse white wax markings; abdomen greenish or olive brown; wax wool production weak. Wax glands on head and prothorax absent or indistinct, without clear facets; rhinaria on ant. III–V oval to circular. Eggs green. Galls solitary, otherwise as in A. abietis . Holocyclic and dioecious, alternating between Picea and Larix .

Recorded primary hosts

Pinaceae : Picea abies *, engelmannii , glauca *, koraiensis , omorika , orientalis , pungens , sitchensis , spp.

Distribution

F.

A11 (A4) Siphunculi present; adults without sclerotised ovipositor. Apterae rarely less than 1.2 mm; antennae at least 4-segmented ..................... Aphididae Latreille, 1802 A12

Figures

Fig. 22. Adelges (Sacciphantes) viridis (Ratzeburg, 1843). A–B. Abandoned galls on Picea abies. C. Alate gallicola (on Larix decidua).

Fig. 23. Adelges (Sacciphantes) viridis (Ratzeburg, 1843), sexupara (after Carter 1971, redrawn and modified from Heie 2004).