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Lachninae : Eulachnini : Cinara mordvilkoi
 

 

Cinara mordvilkoi

Shiny juniper aphid

On this page: Identification & Distribution Other aphids on the same host

Identification & Distribution

Adult apterae of Cinara mordvilkoi (see first picture below) are reddish yellow or light coffee brown, with a darker dorsum. The anterior part of the dorsum is covered with wax powder, mostly along borders between head and thoracic segments. The posterior dorsum is nearly without wax and is often more-or-less shiny (cf. Cinara juniperi, which have fairly uniform wax dusting covering all the dorsum). The underside is covered with fine wax powder. The legs are dark brown to black and the hind tibiae are all dark. Antennal segment V is slightly shorter than, or about the same length, as segment VI (0.85-1.05 times) (cf. Cinara juniperi, which has antennal segment V clearly shorter than segment VI (0.7-0.9 times). Abdominal tergite II is without spinopleural sclerites (cf. Cinara juniperi, which has spinopleural sclerites on abdominal tergite II.) The siphuncular cones are relatively large and dark brown. The body length of adult Cinara mordvilkoi apterae is 2.7-3.3 mm. (cf. Cinara juniperi, whose body length is often less than 2.7 mm).

Images above copyright Anders Albrecht (2017) under a Creative Commons Attribution 3.0 License.

The alate vivipara of Cinara mordvilkoi (not pictured) has a dark head and thorax, and pale abdomen. There are 12-14 secondary rhinaria on antennal segment III, 4-6 on IV, and 2 on V. Abdominal tergite I has 2 anterior sclerotized plates and 2 posterior medial sclerites, tergites III-VI each have 1-3 basal scleroites, and there is a sclerotic band on tergite VIII. The siphuncular cones are prominent and well pigmented.

Cinara mordvilkoi is monoecious on juniper (mainly Juniperus communis) where they can form mixed colonies with Cinara juniperi. In spring they feed on young shoots and needles, with winged viviparae occurring only in the second generation (Durak, 2014). High air temperatures in the summer months cause them to migrate to the roots and lower parts of juniper covered in soil. At this time they prefer shaded and humid habitats and have a cryptic way of life. In autumn they return to feeding on young shoots and needles. Sexuales are produced in autumn; males are usually apterous, but alate males are produced in some years. Cinara mordvilkoi is found in a number of northern and eastern European countries including Sweden, Poland, Slovakia, Italy, Bulgaria, Ukraine, Belarus, Poland and the Baltic states, as well as in Kazakhstan.

 

Other aphids on the same host

Cinara mordvilkoi has been recorded from 2 Juniper species (Juniperus communis, Juniperus pseudosabina).

Blackman & Eastop list 11 species of aphid as feeding on common juniper (Juniperus communis) worldwide, and provide formal identification keys (Show World list). Of those aphid species, Baker (2015) lists 6 as occurring in Britain (Show British list).

Acknowledgements

We are grateful to Anders Albrecht for making his images of Cinara mordvilkoi available for use under a creative commons licence.

We have used the species accounts and keys given by Heie (1995), Binazzi (1996) and Durak (2011) together with information from Roger Blackman & Victor Eastop in Aphids on Worlds Plants. We fully acknowledge these authors and those listed in the reference sections as the source for the (summarized) taxonomic information we have presented. Any errors in information are ours alone, and we would be very grateful for any corrections. For assistance on the terms used for aphid morphology we suggest the figure provided by Blackman & Eastop (2006).

Useful weblinks

References

  • Albrecht, A.C. (2017). Illustrated identification guide to the Nordic aphids feeding on Conifers (Pinophyta) (Insecta, Hemiptera, Sternorhyncha, Aphidomorpha). European Journal of Taxonomy 338 1-160. Full text

  • Binazzi, A. (1996). Contributions to the knowledge of the conifer aphid fauna XXV. Cinara (Cupressobium) mordvilkoi Pasek new to the fauna of Italy, with description of the alate viviparous female (Aphididae Lachninae). Redia 79(2), 137-142. (p. 137) Abstract

  • Durak, R. (2011). Molecular and morphological identification of Cinara juniperi and Cinara mordvilkoi. Bulletin of Insectology 64(2), 195-199. Full text

  • Durak, R. (2014). Life cycle, seasonal and interannual polymorphism in a monoecious aphid Cinara mordvilkoi (Hemiptera: Aphidoidea: Lachnidae). European Journal of Entomology 111(3), 357-362. Full text

  • Heie, O.E. (1995). The Aphidoidea (Hemiptera) of Fennoscandia and Denmark. VI. Family Aphididae: Part 3 of tribe Macrosiphini of subfamily Aphidinae, and family Lachnidae. Fauna Entomologica Scandinavica 31 222 p. (p.141) Abstract