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
Adelges (Dreyfusia) merkeri
(Eichhorn, 1957)
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
S.