Bursaphis, Baker (Blackman & Eastop, 2006

Kök, Şahin, Karabacak, Ersin, Yaşar, İpek, Kasap, İsmail & Barjadze, Shalva, 2024, A new species of Aphis Linnaeus, 1758 (Hemiptera: Aphididae) from the northwestern Türkiye with a key to the species of the subgenus Bursaphis Baker, 1934, Zootaxa 5551 (3), pp. 569-579 : 576-577

Identification key for Bursaphis species based on apterous viviparous females

This key is a modification of those by Remaudière (1993) and Blackman & Eastop (2024) including a new species.

1. Pigmentation present on ABD dorsum anterior to SIPH....................................................... 2

-. Pigmentation absent on ABD dorsum anterior to SIPH........................................................ 3

2. URS 1.10–1.40 × HT II. MSL on ANT III 0.70–1.50 × ANT III BD. On Adesmia spp. ( Fabaceae ). In Argentina ........................................................ A. (Bursaphis) argentina Nieto Nafría, Ortego & Mier Durante, 2021

-. URS 1.46–1.60 × HT II. MSL on ANT III 0.37–0.58 × ANT III BD. On Papaver pilosum subsp. strictum ( Papaveraceae ). In Türkiye.................................................................. A. (Bursaphis) kazdagensis sp. nov.

3. HT II remarkably smooth. SIPH occasionally with a few fine setae. On Epilobium spp. and Oenothera sp. ( Onagraceae ). In Europe Türkiye, Iran, Kazakhstan and Pakistan............................. A. (Bursaphis) epilobiaria Theobald, 1927

-. HT II distinctly imbricated. SIPH without setae............................................................. 4

4. HT II with 2, 2, 2 setae. On Ribes spp. ( Grossulariaceae ), Baccharis , Bidens , Cosmos , Chrysanthemum , Eupatorium, Oxyloba , Simsia , Stevia ( Asteraceae ), and occasionally Penstemon (Plantaginaceae) . In Mexico ................................................................................................. A. (Bursaphis) solitaria ( Baker, 1934)

-. HT II with 3, 3, 3 or 3, 3, 2 setae......................................................................... 5

5. Setae on ANT III very long, fine and wavy, MSL 1.8–4.0 × ANT III BD.......................................... 6

-. Setae on ANT III straight or curved, not fine and wavy, MSL shorter than ANT III BD or 1.0–2.0 × ANT III BD.......... 8

6. SIPH 0.13–0.23 mm long, 0.08–0.10 × BL, 0.8–1.0 × cauda L. On Ribes nigrum , Ribes sp. In Canada and Mongolia......................................................... A. (Bursaphis) manitobensis Robinson & Rojanavongse, 1976

-. SIPH 0.23–0.38 mm long, 0.12–0.25 × BL, and 1.0–2.2 × cauda L............................................... 7

7. ABD TERG II– V as well as I and VII with well-developed MTu. On Ribes spp. ( Grossulariaceae ). In Europe, eastward to Türkiye, Kazakhstan and west Siberia ( Russia).............................. A. (Bursaphis) schneideri ( Börner, 1940)

-. ABD TERG II– V only sporadically with small MTu. On Ribes spp. ( Grossulariaceae ), Epilobium angustifolium ( Onagraceae ). In North America, and possibly Mongolia and east Siberia ( Russia)................... A. (Bursaphis) varians Patch, 1914

8. ABD TERG II– VI bearing in total 1–10 MTu (only less than 3 in some small specimens). On Ribes spp. , mainly R. grossularia ( Grossulariaceae ), and Clarkia , Epilobium spp. , especially E. montanum and Fuchsia ( Onagraceae ). In Europe, Central Asia, Pakistan, across Siberia ( Russia) and in China...................... A. (Bursaphis) grossulariae Kaltenbach, 1843

-. ABD TERG II– VI without MTu......................................................................... 9

9. SIPH 0.9–1.2 × Cauda L. URS with 9–14 accessory setae. On Epilobium hirsutum ( Onagraceae ). In west Sudan, Africa (check several specimens)........................................................ A. (Bursaphis) fluvialis Martin 1982

-. SIPH 1.0–2.0 × Cauda L. URS with 6-10 accessory setae. In Holarctic and Australia (check several specimens)......... 10

10. Cauda 1.35–1.75 × URS. ANT and legs all rather dusky/dark. On Epilobium lanceolatum and E. montanum ( Onagraceae ). In Europe, Kazakhstan, and introduced to North America........................ A. (Bursaphis) epilobii Kaltenbach, 1843

-. Cauda 1.00–1.35 × URS. ANT and legs usually paler........................................................ 11

11. MSL on ANT III shorter than ANT III BD. On Mimulus spp. ( Phrymaceae ). In North America................................................................................................. A. (Bursaphis) costalis Cook, 1984

-. MSL on ANT III longer than ANT III BD................................................................. 12

12. PT is more than 0.21 mm; PT 1.9–2.5 × ANT VI b (usually more than 2). On Ribes spp. (aureum, alpinum, nigrum ) ( Grossulariaceae ) and Epilobium and Oenothera ( Onagraceae ). In Europe, North America.............................................................................................. A. (Bursaphis) oenotherae Oestlund, 1887

-. PT is less than 0.20 mm; PT 1.5–2.3 × ANT VI b (usually less than 2). On Oenothera spp. ( Onagraceae ). In Northern and eastern Europe.................................................. A. (Bursaphis) holoenotherae Rakauskas, 2007

Note: Aphis (Bursaphis) popovi Mordvilko, 1932 was excluded from the key, because it was described from fundatrices only ( Rakauskas 1996).