Aphis,

Barjadze, Shalva, 2011, A new species of Aphis Linnaeus (Hemiptera: Aphididae) from Cephalaria gigantea (Dipsacaceae) in Georgia, Zootaxa 2821, pp. 39-46: 45

publication ID

http://doi.org/ 10.5281/zenodo.206760

persistent identifier

http://treatment.plazi.org/id/039687AA-7E12-1812-40B7-FDCFDFDFFA59

treatment provided by

Plazi

scientific name

Aphis
status

 

Key to species of Aphis  (apterous viviparous females) from Dipsacaceae  worldwide

1. Dorsum with carapace or sometimes marginal sclerites and spinopleural bars...................................... 2

-. Dorsum without extensive dorsum pigmentation............................................................. 3

2. Longest hair on ANT III 1.8–2.8 x BD III; cauda with 12–20 hairs. On Cephalaria  .................. A. cephalariae  n. sp.

-. Longest hair on ANT III 0.3–0.7 x BD III; cauda with 4–9 hairs. On Succisa  ........................ A. craccivora  Koch

3. Femoral hairs all much shorter than diameter of trochantro-femoral suture; cauda dusky to dark with 2–9 hairs............ 4

-. Many of femoral hairs longer of diameter of trochantrofemoral suture; cauda black with 7–24 hairs..................... 7

4. SIPH 2.0– 2.8 x cauda. URS 1.4–1.8 x HT II. ANT VI PT 2.9–3.7 x ANT VIb. On Dipsacus  .............. A. ochropus  Koch

-. SIPH 0.8–2.5 x cauda; URS 1.1–1.5 x HT II; ANT VI PT 1.3–3.3 x ANT VIb...................................... 5

5. Posterior hairs on hind trochanter 0.2–0.5 x diameter of trochantrofemoral suture; hairs on anterior half of subgenital plate 0.2– 0.5 x III BD; on Dipsacus  , Knautia  and Scabiosa  .............................................. A. thomasi  (Börner)

-. Posterior hairs on hind trochanter 0.3–1.1 x diameter of trochantrofemoral suture; hairs on anterior half of subgenital plate 1.2 – 2.0x III BD.......................................................................................... 6

6. Marginal hairs on ABD TERG I 0.4 –1.0x the height of the Mtu on the same tergite (see several specimens); on Knautia  and Scabiosa  , Succisa  ....................................................................... A. confusa  Walker

-. Marginal hairs on ABD TERG I 0.7–1.8 x the height of the Mtu on the same tergite (see several specimens); On Cephalaria  , Dipsacus  , Scabiosa  ...................................................................... A. gossypii  Glover

7. Dorsal abdomen with dark markings...................................................................... 8

-. Dorsal abdomen without dark markings................................................................... 11

8. Dorsal abdomen without dark cross-band on ABD TERG VII; on Knautia  ..................... A. longini  Huculak (part)

-. Dorsal abdomen with dark cross-band on ABD TERG VII..................................................... 9

9. URS 1.30–1.50 x HT II; ANT VI PT 4.4 –6.0x ANT VIb; on Succisa  .............................. A. succisae  Holman

-. URS 0.85–1.40 x HT II; ANT VI PT 1.8–4.1 x ANT VIb...................................................... 10

10. SIPH 2.4–5.4 x longest marginal hairs on ABD TERG I –III, 2.8–5.1 x their diameter at midlength and 0.8–1.6 x cauda; on Dip- sacus, Knautia  , Scabiosa  , Succisa  ........................................................... A. fabae  Scopoli

-. SIPH 5.4– 17 x longest marginal hairs on ABD TERG I –III, 3.5–7.5 x their diameter at midlength and 1.3–1.9 x cauda; on Dip- sacus.............................................................................. A. solanella  Theobald

11. HT with a row of spine-like setae; HT I often with 3 hairs; on Dipsacus  ...................... A. eugeniae  van der Goot

-. HT without a row of spine-like setae; HT I with 2 or 3 hairs................................................... 12

12. ANT 0.5–0.6 x BL; cauda with 7–15 hairs; ANT VI PT 1.9–2.9 x ANT VIb; on Scabiosa  .............. A. spiraecola  Patch

-. ANT 0.60–0.75 x BL; cauda with 14–24 hairs; ANT VI PT 3.0–4.0x ANT VIb; on Knautia  ........ A. longini  Huculak (part)