Adelges (Dreyfusia) merkeri (Eichhorn, 1957)

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 : 21

publication ID	https://doi.org/ 10.5852/ejt.2017.338
publication LSID	lsid:zoobank.org:pub:86786AB1-4A1A-4A1E-B42B-53B73D66ED60
DOI	https://doi.org/10.5281/zenodo.3851469
persistent identifier	https://treatment.plazi.org/id/039F8788-FFF4-FFDC-AB13-FE8E11E043DA
treatment provided by	Carolina
scientific name	Adelges (Dreyfusia) merkeri (Eichhorn, 1957)
status

Treatment

Adelges (Dreyfusia) merkeri (Eichhorn, 1957) View in CoL

Diagnosis

Similar to A. nordmannianae . Neosistens: wax pore plates on inner margins of meso- and metathoracic spinal sclerites divided into 3–4 rounded areas, each with 3–8 pits. Total number of pits on the 10 central areas 26–63 (usually more than 40) ( Blackman & Eastop 1994, 2014). Holocyclic and dioecious, alternating between Picea orientalis (p. 9) and Abies alba . Scattered on trunk and older branches, on all parts of seedlings. Not ant-attended.

Recorded secondary hosts

Pinaceae : Abies alba . Holman (2009) also lists A. nordmanniana .

Distribution