Adelges (Adelges) tardus (Dreyfus, 1888)

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: 10-11

publication ID

https://doi.org/10.5852/ejt.2017.338

publication LSID

lsid:zoobank.org:pub:86786AB1-4A1A-4A1E-B42B-53B73D66ED60

DOI

http://doi.org/10.5281/zenodo.3851497

persistent identifier

http://treatment.plazi.org/id/039F8788-FFE9-FFC2-AB36-FB4614434134

treatment provided by

Carolina

scientific name

Adelges (Adelges) tardus (Dreyfus, 1888)
status

 

Adelges (Adelges) tardus (Dreyfus, 1888)  

Figs 10–14 View Fig View Fig View Fig View Fig View Fig

Diagnosis

Overwintering pseudofundatrix nymphs 0.3–0.4 mm, blackish with sparse, glossy grey, stiff, almost straight wax filaments. Al. gallicolae: 1–2 mm; ant. III longer than IV; glands (including premarginal) developed, blackish with reddish brown abdomen exuding abundant fine wax wool. They remain in the vicinity or their gall, laying eggs covered with abundant wax. Galls as in A. laricis   , but gregarious, along with galls from preceding years, opening in August–September. Gall chambers not completely closed: nymphs can frequently be seen on the outer surface. Gallicolae blackish, secreting abundant wax. Anholocyclic on Picea   . Usually on trees in rather open position: clearings, forest margins, solitary spruces and spruce hedges. Galls frequently intermixed with galls of Adelges abietis   . Overwintering pseudofundatrices seem to prefer the surface of buds, not their bases as in A. abietis   (according to my own records from Finland).

Recorded hosts

Pinaceae   : Picea abies   *, glauca   , pungens   , sitchensis   .

Distribution

D F S.

A10 (A9) Overwintering larvae: Dorsal sclerites with groups of similar-sized ring-like wax pores. Al. gallicola with basal articulation of ant. IV and V narrower ................................................. ..................................... Adelges   ( Gilletteella Börner, 1930   and Sacciphantes Curtis, 1844   )

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Adelgidae

Genus

Adelges