Cinara (Cinara) pilicornis (Hartig, 1841)

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 : 15

Cinara (Cinara) pilicornis (Hartig, 1841)

Figs 30–31

Diagnosis

Aptera 2.1–4.7 mm, light red-brown, orange brown, olive or grey-green; abdominal dorsum usually with a conspicuous wax pattern The thickness of the wax cover varies considerably and wears easily off. Siphuncular cones small, brown or greenish black. Legs and antennae pale. Second segment of hind tarsus long and conspicuously curved. Hairs very long; on antennal segment 3, 2–3 times the diameter of the segment or even more. Alatae with abundant wax wool. Holocyclic, monoecious on Picea , also on Tsuga . Found in forest margins, clearings, often on solitary trees. Colonies on undersides of previous year’s twigs, during summer colonising current year’s shoots. Often ant-attended.

Recorded hosts

Pinaceae : Picea abies *, engelmannii , glauca *, omorika *, orientalis , pungens , sitchensis , tianschanica , spp.; Tsuga heterophylla ?

Recorded attendant ants

Formicinae : Formica aquilonia *, fusca *, truncorum *; Lasius niger *. Myrmicinae: Myrmica rubra *.

Distribution

D F I N S.

Figures

Fig. 30. Cinara (Cinara) pilicornis (Hartig, 1841) on Picea abies. Typical mid-summer colonies on branch undersides.

Fig. 31. Cinara (Cinara) pilicornis (Hartig, 1841). Newly founded colonies on young shoots of Picea abies. Wax cover intact and pattern very distinct. Note the thick wax wool on the alatae (A, D).