Brachyunguis, Das, 1918

Barjadze, Shalva, Özdemir, Işil & Ebrahimi, Ebrahim, 2022, Two species of Brachyunguis (Hemiptera: Aphididae) new to Iran, and a key to the Iranian species of this genus, Zootaxa 5183 (1), pp. 49-57 : 56

Key to apterous viviparous females of Brachyunguis species known from Iran

1 SIPH longer, 0.08–0.12 × BL............................................................................ 2

- SIPH shorter, no more 0.07 × BL......................................................................... 7

2 Cauda with 8–14 setae. (On Cynanchum and Haloxylon )...................................................... 3

- Cauda with no more than 9 setae. On other plants........................................................... 4

3 ANT 0.60–0.68 × BL. SIPH pale. Clypeus normal. (On Cynanchum )........................... B. cynanchi (Nevsky)

- ANT 0.43–0.54 × BL. SIPH dark. Clypeus strongly enlarged. (On Haloxylon )............ B. saxaulica (Nevsky) (partim)

4 ANT no more than 0.50 × BL (On Tamarix )................................................................ 5

- ANT 0.67–0.77 × BL (On other plants)................................................................... 6

5 ANT III much longer than ANT VI. URS L 0.80–0.90 × HT II L.......................... B. tamaricophilus (Nevsky)

- ANT III is about as long as ANT VI or shorter. URS L 0.60–0.75 × HT II L................. B. tamaricis (Lichtenstein)

6 SIPH L no more than 1.3 × SIPH W. CAUDA L no more than 1.3 × CAUDA W. (On Pistacia vera )................................................................................................... B. nevskyi (Kreutzberg)

- SIPH L 2.6–3.7 × SIPH W. CAUDA L 1.5–2 × CAUDA W. (On Stocksia brahuica )..................................................................................................... B. kaussarii Remaudière & Davatchi

7. SIPH L 0. 20–0.63 × CAUDA L......................................................................... 8

- SIPH L 0. 65–1.1 × CAUDA L......................................................................... 10

8 Cauda with at least 10 setae. (On Zygophyllum )................................... B. zygophylli (Nevsky) (partim)

- Cauda with 6–9 setae. On Diarthron , and possibly other plants................................................. 9

9 PT 0.38–0.64 × ANTVI b. SIPH pigmented, very short, truncated helmet–shaped or ring-shaped................................................................................................ B. dendrostellerae Kadyrbekov

- PT 0.76–0.86 × ANTVI b. SIPH pale, truncated conical................................ B. monstratus Kadyrbekov

10 Clypeus strongly enlarged. (On Haloxylon )....................................... B. saxaulica (Nevsky) (partim)

- Clypeus normal. On other plants........................................................................ 11

11 URS L 1.00–1.16 × HT II L. (On Astracantha )................................... B. skafi Remaudière & Talhouk

- URS L shorter or equal to HT II L. On other plants......................................................... 12

12 Head pale brown, big marginal sclerites are developed on the thorax, ABD TERG VII–VIII often with small sclerites.... 13

- Only head is sclerotized, sclerites are not developed on the thorax and abdomen.................................. 14

13 ABD TERG VIII with 2 (3) setae. Cauda pale. (On Cuscuta )................................ B. cuscutae (Nevsky)

- ABD TERG VIII with 4–5 setae. Cauda light brown. (On Atraphaxis )....................... B. atraphaxidis (Nevsky)

14 Cauda with no more 9 setae. (On various plant families)......................................... B. harmalae Das

- Cauda at least 10 setae. (On Lycium or Zygophyllum )....................................................... 15

15 MSL on frons 0.6–0.9 × ANT III BD. SIPH L no more than 0.75 × CAUDA L. (On Zygophyllum )............................................................................................... B. zygophylli (Nevsky) (partim)

- MSL on frons 1.2–1.5 × ANT III BD. SIPH L 0.9–1.0 × CAUDA L. (On Lycium )..................... B. lycii (Nevsky)