Species not placed in subgenera

A. khrulevi –

Primary references

• Linnaeus, C. 1758. Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Editio Decima, Reformata. Tomus I. Holmiæ (Stockholm): impensis direct. Laurentii Salvii. 824 pp. DOI: 10.5962/bhl.title.542 BHL p. 451 BHL Reference page. 

Additional references

• Barjadze, S. 2011: A new species of Aphis Linnaeus (Hemiptera: Aphididae) from Cephalaria gigantea (Dipsacaceae) in Georgia. Zootaxa, 2821: 39–46. Preview
• Bajardze, S., Blackman, R.L. & Özdemir, I. 2015. A new species of Aphis Linnaeus (Hemiptera, Aphididae) living on Teucrium polium L. (Lamiaceae). Zootaxa 4057(2): 248–256. DOI: 10.11646/zootaxa.4057.2.5. Preview (PDF) Reference page. 
• González Rodríguez, S., Brown, P.A., Ortego, J., López Ciruelos, S.I. & Nieto Nafría, J.M. 2017. Aphis species (Hemiptera, Aphididae) living on Mulinum (Apiaceae) in South America, with a description of a new species. Zootaxa 4216(1): 47–54. DOI: 10.11646/zootaxa.4216.1.2 Reference page. 
• Hales, D., Foottit, R.G. & Maw, E. 2014. Endemic aphids Aphis carverae sp. nov. and Casimira canberrae (Eastop) on Epilobium (Onagraceae) threatened by introduced Aphis oenotherae Oestlund (Hemiptera: Aphididae: Aphidinae). Austral entomology, DOI: 10.1111/aen.12125 . Reference page. 
• ICZN 1963. Opinion 677. Aphis Linnaeus, 1758 (Insecta, Hemiptera): Designation of a Type-Species under the Plenary Powers and addition of Aphididae to the Official List. Bulletin of Zoological Nomenclature 30: 336–338. BHL Reference page. 
• Lagos, D.M., Puttler, B., Voegtlin, D.J. & Giordano, R. 2012. A new species of Aphis (Hemiptera: Aphididae) in Missouri on St. John’s wort, Hypericum kalmianum, and re-description of Aphis hyperici Monell. Zootaxa 3478: 81–92. Preview Reference page. 
• López Ciruelos, S.I., Míer Durante, M.P., Ortego, J., Garcia-Tejero, A. & Nieto Nafría, J.M. 2016. Three new South American species of genus Aphis (Hemiptera: Aphididae) living on species of Euphorbia (Euphorbiaceae). Zootaxa 4085(1): 103–118. DOI: 10.11646/zootaxa.4085.1.4.Reference page. 
• López Ciruelos, S.I., Brown, P.A. & Nieto Nafria, J.M. 2018. Two new species of the genus Aphis (Hemiptera, Aphididae) from Chile on host species of Alstroemeriaceae and Ericaceae. ZooKeys 738: 37–45. DOI: 10.3897/zookeys.738.21966. Reference page. 
• Stekolshchikov, A.V. & Buga, S.V. 2018. The aphid fauna (Hemiptera, Sternorrhyncha, Aphidomorpha) of Murmansk province (Russia), with description of Aphis khrulevi sp. nov. and Dysaphis karyakini sp. nov. and males of Chaitophorus nigricantis Pintera, 1987. Zootaxa 4527(4): 451–493. DOI: 10.11646/zootaxa.4527.4.1 Reference page. 
• Stekolshchikov, A.V. & Buga, S.V. 2019. Emendation of incorrect original spellings of two aphid species names recently established (Hemiptera, Aphididae). Zootaxa 4551(3): 395–395. DOI: 10.11646/zootaxa.4551.3.9 Reference page. 

Links

• Aphis Taxon details on Fauna Europaea
• Aphis in the Aphid Species File database, accessed on 07/01/2014.