Illustrated identification guide to the Nordic aphids feeding on Conifers (Pinophyta) (Insecta, Hemiptera, Sternorhyncha, Aphidomorpha) Author Albrecht, Anders Christian text European Journal of Taxonomy 2017 2017-07-24 338 1 160 journal article 22023 10.5852/ejt.2017.338 be9f3ab9-3131-4e11-8d29-a94275ffaac9 2118-9773 3834349 86786AB1-4A1A-4A1E-B42B-53B73D66ED60 Cinara (Cupressobium) mordvilkoi (Pasek, 1954) Fig. 116 Diagnosis Similar to C. juniperi and sometimes difficult to distinguish. Aptera 2.7–3.2 mm . C. mordvilkoi is slightly larger and its wax dusting is thinner and more evenly distributed, posterior part of abdomen often more or less shiny. Colour in both adults and juveniles – at least in Finnish material – greyish olive without reddish tinge. Spinopleural sclerites present on thorax but absent or strongly reduced on abdomen. Durak (2011) made a DNA study combined with morphological analyses of the two species, confirmed their distinctness, and found some statistically significant distinguishing characters (all apparently related to size): see Table 1 . Holocyclic, monoecious on Juniperus communis . In spring on thin twigs, in summer moving to roots and stems at ground level. Recorded hosts Recorded hosts Cupressaceae : Juniperus communis * . Distribution F. Table 1. Morphological features of the apterous viviparous females C. juniperi (n = 30) and C. mordvilkoi (n = 30). Minimum–maximum (mean). Statistical significance: * = P <0.05; ** = P <0.01. Length unit = mm. Data from Durak (2011) .

Characters	C. juniperi	C. mordvilkoi
body length	2.1–2.45 (2.33)	2.75–3.12 (2.94)	**
tibia length	0.9–1.12 (1.04)	1.45–1.55 (1.5)	**
antennae segment III	0.22–0.35 (0.28)	0.32–0.4 (0.37)	**
antennae segment IV	0.12–0.15 (0.128)	0.15–0.17 (0.162)	*
antennae segment V	0.15–0.21 (0.18)	0.2–0.25 (0.21)	*
antennae segment VI	0.22–0.26 (0.23)	0.25–0.27 (0.26)	*
antennae length	0.82–1.1 (0.96)	1.17–1.22 (1.19)	**
rostrum length	0.85–1.0 (0.9)	1.32–1.72 (1.43)	**

F4 (F3) Hind tibiae pale or with a pale zone between the dark knee and apex ................................. ............................................................................. Cinara (Cupressobium) Börner, 1940