Cinara (Cinara) pini (Linnaeus, 1758)

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 : 34

Cinara (Cinara) pini (Linnaeus, 1758)

Figs 88–89

Diagnosis

Apterae 2–3.5 mm, greyish brown, brown or olive brown, with a bronze sheen and thin but distinct wax markings along mid-line and at segment borders; ventrally more or less completely wax-dusted. Body dorsoventrally flattened, widest anterior to the siphunculi, evenly tapering towards head. Dorsal hairs on abdomen sparse and very short, mostly 0.01–0.04 mm, usually less than 10 hairs between the siphuncular sclerites. See also C. acutirostris (on Pinus nigra and P. pinea ) and C. cembrae (on P. cembra ). Ovipara (if correctly interpreted) with a large dull black transverse sclerite across segments 5 and 6, encompassing the siphunculi, but not extending forwards as in C. nigritergi . Holocyclic, monoecious on Pinus . Open forests, meadow margins, sea shores etc. Forming small colonies on young shoots, twigs and branches, viviparous colonies almost invariably attended by ants.

Recorded hosts

Pinaceae : Pinus mugo *, sylvestris *. Records from Pinus banksiana , cembra , contorta , nigra , pinaster , pinea , sibirica , strobus etc. are to be confirmed. According to Eastop (1972) and Blackman & Eastop (2015), records from hosts other than P. sylvestris are likely to be misidentifications or misapplications of the name pini .

Recorded attendant ants

Formicinae : Camponotus herculeanus *; Formica aquilonia *, cinerea *, fusca *, lemani *, polyctena *, pratensis *, rufa *, sanguinea *, truncorum *; Lasius niger *.

Distribution

D F N S.

Figures

Fig. 88. Cinara (Cinara) pini (Linnaeus, 1758) on Pinus sylvestris. A. Colony on previous year’s terminal shoot, attended by Camponotus herculeanus (Linnaeus, 1758). B–C. Apterae with young on a 2 year-old twig, attended by Formica polyctena Förster, 1850.

Fig. 89. Cinara (Cinara) pini (Linnaeus, 1758). Freeze-dried apterae. A–B. Adults. C. Full-grown juvenile.