Myzus (Nectarosiphon) polaris Hille Ris Lambers, 1952

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 : 520-521

Myzus (Nectarosiphon) polaris Hille Ris Lambers, 1952

One alate vivipara and two oviparae of Myzus polaris were collected on Wrangel Island in 2006 ( Stekolshchikov & Khruleva 2014). In 2015, the species was again recorded in the central and southern parts of the island, but in other sites. It was collected in rather dry biotopes with early snowmelt ( Fig. 3 , 15 ). The fact that, in the middle of summer, only alate viviparous females were collected in number suggests that this morph predominates in the second generation of the M. polaris life cycle.

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, 26 al. The upper reaches of the Neizvestnaya River: an assemblage of herbs and sedges on a dry rubbly edge of a south-facing river terrace (71° 12.970 N, 179° 19.387 W), 12–29.vii.2015, pitfall trap, 1 al.

Figures

FIGURE 3. A dry hillock at the feet of Mineeva Mountains (southern part of the island), 19.vii.2015; collecting location of Pemphigus saliciradicis, Myzus polaris and Metopolophium sabihae.

FIGURE 15. A tundra-steppe assemblage on the edge of a south-facing river terrace in the upper reaches of the Neizvestnaya River (central part of the island), 23.vi.2015; a biotope where the greatest number of Metopolophium sabihae was collected.