Acyrthosiphon boreale Hille Ris Lambers 1952
Acyrthosiphon boreale Hille Ris Lambers, 1952 (Figs. 26–33, Tabl. 3, 4) Material. 5 apt., No. 10327, ChD, 1 km south of Pevek, N 69 ° 40 ', E 170 ° 16 ', steep southern slope with tundrasteppe forb-sedge-dryad vegetation, 29.vi. 2011, sweeping; 1 apt., No. 10328, ChD, 1 km south of Pevek,...
| Main Authors: | , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2015
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| Subjects: | |
| Online Access: | https://zenodo.org/record/6096512 https://doi.org/10.5281/zenodo.6096512 |
| Summary: | Acyrthosiphon boreale Hille Ris Lambers, 1952 (Figs. 26–33, Tabl. 3, 4) Material. 5 apt., No. 10327, ChD, 1 km south of Pevek, N 69 ° 40 ', E 170 ° 16 ', steep southern slope with tundrasteppe forb-sedge-dryad vegetation, 29.vi. 2011, sweeping; 1 apt., No. 10328, ChD, 1 km south of Pevek, N 69 ° 40 ', E 170 ° 16 ', from the same locality as No. 10327, 11.vii. 2011, sweeping; 15 apt., No. 10251, SSWBer, Potentilla palustris (L.) Scop., 17.vii. 2012, on lower sides of leaves and pedicles near flowers; 2 apt. and imm., No. 10268, SSWBer, Potentilla palustris, 27.vii. 2012, on lower sides of leaves, pedicles and flowers (imm. were transferred to plants in laboratory conditions, where 1 al. and 2 apt. were obtained 29.vii. 2012 (No. 10268 - 29.VII), and 2 apt., 1 ovip. and 4 males were obtained 4–6.viii. 2012 (No. 10268 - 4.VIII)). Comments. This species is known from northern Europe, United Kingdom, Greenland and Canada (Baffin Island) and also, possibly, from Switzerland, Poland, Czech Republic, Hungary, Lithuania, Ukraine, Kazakhstan and east Siberia; these latter records need verification (Blackman and Eastop, 2015). In the vicinity of Pevek this species was collected only at a single location on a steep southern slope with tundra-steppe vegetation. In the vicinity of Beringovskiy it was one of the commonest aphid species. Apterous viviparous females from Chukotka slightly differ from those from elsewhere: their ultimate rostral segment, processus terminalis and siphunculi are shorter; they have on average a few more setae on the appendages and secondary rhinaria on the 3 rd antennal segment (Tabl. 3). However, these differences are not taxonomically significant and can be attributed to geographical variability. The oviparous female of this species has not been described previously; for males, only the number of setae on the ultimate rostral segment and the number of secondary rhinaria on antennal segments (Stroyan, 1964), or just the number of rhinaria (Blackman, 2010) have been recorded. Below more detailed ... |
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