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 (Adelges) tardoides
(Cholodkovsky, 1911)
Diagnosis
In most respects similar to
A. laricis
. Al. gallicolae: ant. III longer than IV; glands (including premarginal) developed, abundant wax wool produced. Holocyclic and dioecious, alternating between
Picea
and
Larix
(see also p. 25). Galls
5–15 mm
, widely dispersed, usually singly on their branch, opening late June–September. Gallicolae emerge from late July to August; secreting abundant wax.
Recorded primary hosts
Pinaceae
:
Picea abies
.
Distribution
Europe. Not yet in the Nordic countries.