Pemphigus saliciradicis ( Börner, 1950 )

Khruleva, Olga A. & Stekolshchikov, Andrey V., 2019, Additions to the aphid fauna of Wrangel Island due to climate change with redescription of the oviparous female of Pterocomma groenlandicum Hille Ris Lambers, 1952 (Hemiptera, Aphidoidea), Zootaxa 4615 (3), pp. 511-528 : 513-514

publication ID 10.11646/zootaxa.4615.3.6

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Pemphigus saliciradicis ( Börner, 1950 )


Pemphigus saliciradicis ( Börner, 1950)

This new Wrangel Island record is also a new record for Russia. The single alate female of Pemphigus saliciradicis was collected in the southern part of the island, about 6 km from the sea shore, in a biotope with creeping willow, Salix glauca var. cordifolia (Pursh) Dorn , and dwarf willow, S. phlebophylla Anderss. ( Fig. 3 View FIGURE 3 ). This species is also known from Europe—England ( Stroyan 1964), Finland ( Heie 1980), Sweden ( Heie 1980), Switzerland ( Börner 1950), Transcaucasia—Georgia ( Barjadze 2009), Iceland and Greenland ( Hille Ris Lambers 1952, 1955, as Pemphigus salicicola ), Japan ( Aoki 1975), and possibly also California ( USA) ( Lange 1965) and Baffin Island ( Canada) ( Richards 1963, as P. groenlandicus , see Blackman & Eastop 2019). Apparently, this species is anholocyclic on the roots of Salix spp. in the greatest part of its range. Given the absence of the presumed primary host (the only known primary hosts of Pemphigus species are Populus species) on Wrangel Island, it seems likely that P. saliciradicis is also anholocyclic there. Transitions to anholocyclic overwintering in the absence of their primary host have been documented in other northern aphids ( Stekolshchikov & Buga 2009, 2018; Stekolshchikov 2017). However, bearing in mind the very low winter temperatures on Wrangel Island (reaching -43°C ( Svatkov 1970)), the life cycle of P. saliciradicis requires additional study.

Material. Mineeva Mountains: dry hillock with a spotted moss-willow-forb-grassy cover in the base of the slope of the southern exposure (70° 59.163 N, 179° 31.040 W), 19.vii.2015, sweeping, 1 al.













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