Euceraphis borealis Blackman ...

• Main Authors: Stekolshchikov, Andrey V., Khruleva, Olga A.
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Aphidomorpha; Aphididae; Euceraphis; Euceraphis borealis; Canada; Betula nana; Chukotka; Chukotka Autonomous Okrug; Alaska
• Online Access: https://dx.doi.org/10.5281/zenodo.6096499; https://zenodo.org/doi/10.5281/zenodo.6096499

Euceraphis borealis Blackman in Blackman and De Boise, 2002 Material. 3 al., No. 10233, SSWBer, Betula nana exilis (Sukaczev) Hulten, 6.vii.2012, on upper and lower surface of leaves; 2 al., No. 10265, SSWBer, Betula nana exilis (Sukaczev) Hulten, 26.vii.2012, on lower surface of leaves; 3 al., No. 10271, SSWBer, Betula nana exilis (Sukaczev) Hulten, 2.viii.2012, on lower surface of leaves. Distribution outside Chukotka AO. Finland, Canada (Quebec, Manitoba, North-west Territories), USA (Alaska). Comments. Specimens from Chukotka differ slightly in morphology from those described by Blackman and De Boise (2002). Our specimens have a slightly shorter base of the 6th antennal segment—306–372 (320–390 in Blackman and De Boise), a greater range of the ratio of the 5th antennal segment to the base of the 6th antennal segment—2.09–2.79 (2.16–2.73 in Blackman and De Boise), a slightly lower ratio of the length of the 6th antennal segment to the length of the ultimate rostral segment—2.35–2.72 (2.38–3.05 in Blackman ... : Published as part of Stekolshchikov, Andrey V. & Khruleva, Olga A., 2015, Contributions to the aphid fauna (Hemiptera, Aphidoidea) of Chukotka Autonomous Okrug with descriptions of five new species, pp. 1-44 in Zootaxa 4044 (1) on page 4, DOI: 10.11646/zootaxa.4044.1.1, http://zenodo.org/record/289996 ...