Macropsis, Lewis, 1836

Tishechkin, D. Yu., 2020, Review of species of the genus Macropsis Lewis, 1836 (Homoptera: Auchenorrhyncha: Cicadellidae: Eurymelinae: Macropsini) of Mongolia based on materials of the Soviet-Mongolian zoological expeditions: annotated check-list, illustrated key to species, and new synonym, Russian Entomological Journal 29 (4), pp. 350-360 : 356-358

KEY TO SPECIES OF MACROPSIS OF MONGOLIA

1. Male 2 nd tergal apodemes elongated, convergent, separat- ed by large round notch, with more or less expanded tips (Figs 53–54). Penis comparatively narrow (Fig. 55). Body and forewings brown ( Figs 7–9 ). On Ulmus pumila ..... ............................................................ M. illota (Horv.) .

— Combination of characters is different ........................ 2

Figs 53–78. 53–55 — Macropsis illota ; 56–58 — M. sibirica ; 59–61 — M. ochotonaria / M. leporina ; 62–64 — M. iliensis ; 65–67 — M. microcera ; 68–69 — M. daurica ; 70–72 — M. tarbagataica ; 73–74 — M. perpetua ; 75 — M. murina ; 76–78 — M. regalis . 53–54, 56–57, 59, 76 — male abdominal apodemes of the 2 nd tergite; 62, 65, 68, 70, 73–75, 77 — the 2 nd sternite; 55, 58, 60, 63, 66, 69, 71, 78 — penis, lateral view; 61, 64, 67, 72 — the 2 nd valvulae of ovipositor.

Рис. 53–78. 53–55 — Macropsis illota ; 56–58 — M. sibirica ; 59–61 — M. ochotonaria / M. leporina ; 62–64 — M. iliensis ; 65–67 — M. microcera ; 68–69 — M. daurica ; 70–72 — M. tarbagataica ; 73–74 — M. perpetua ; 75 — M. murina ; 76–78 — M. regalis . 53–54, 56–57, 59, 76 — аподемы II брюШного тергита самца; 62, 65, 68, 70, 73–75, 77 — аподемы II брюШного стернита самца; 55, 58, 60, 63, 66, 69, 71, 78 — пенис, сбоку; 61, 64, 67, 72 — внутренние створки Яйцеклада.

2. 2 nd tergal apodemes wide, rounded, separated by small round notch (Figs 56–57). Penis comparatively wide (Fig. 58). Pale yellow with black pattern, forewings semi-transparent with black veins ( Figs 10–11 ). On Spiraea ............................................................ M. sibirica Kusn.

— Combination of characters is different ........................ 3

3. Penis in side view broad, usually bent at obtuse angle (Figs 60, 63, 66, 69, 71, 78, 81, 86–91, 96–100). On poplars and willows ..................................................... 4

— Penis in side view narrow, usually bent at right angle (Figs 105–107). On plants from other families .................. 15

4. Male 2 nd tergal apodemes long and wide, more or less parallel-sided, with widely rounded tips (Fig. 59). 2 nd valvulae of ovipositor with 8–13 preapical teeth each (Fig. 61). Green ( Fig. 12 ) or pale yellow with dark pattern ( Figs 13–15 ); in female, yellow colour form usually brighter, with two dark longitudinal stripes on sides of the fore part of the body and with dark forewings with light costal margin ( Figs 14–15 ) ......................................... 5.

— 2 nd tergal apodemes shorter and/or narrower (Figs 76, 79– 80, 83–85, 93–95) ........................................................ 6

5. On Salix from the section Helix . ... M. ochotonaria Tish.

— On Salix from the section Viminella ..... M. leporina Tish.

6. Green or yellowish green ( Figs 16–19, 21–24 ), only in M. microcera Vilb. female very occasionally pale yellowish with brown pattern on forewings ( Fig. 20 ) ................. 7

— Brown, yellow, yellowish brown or reddish brown, often with dark pattern ( Figs 25–45 ) .................................. 10

7. Pale emerald green ( Figs 16–19 ), female very occasionally pale yellowish with brown pattern on forewings ( Fig. 20 ) ................................................................................ 8

— Bright yellowish green ( Figs 21–24 ) ........................... 9

8. Male 2 nd sternal apodemes longer, strongly convergent, usually with expanded tips, separated by narrow gap (Fig. 62). 2 nd valvulae of ovipositor with 3–4 preapical teeth each (Fig. 64). Tarsi tips in male strongly darkened ( Fig. 16 ). Smaller; ♂, 3.8–4.3 mm, ♀, 4.4–5.0 mm ............... ............................................................... M. iliensis Mit.

— Male 2 nd sternal apodemes rather short, triangular, separated by wide gap (Fig. 65). 2 nd valvulae of ovipositor with 10–12 preapical teeth each (Fig. 67). Tarsi tips in male light or only slightly darkened ( Fig. 18 ). Larger; ♂, 4.2– 4.8 mm, ♀, 4.8–5.4 mm .................. M. microcera Vilb.

9. Larger; ♂, 4.3–4.9 mm, ♀, 4.6–5.6 mm, male 2 nd sternal apodemes separated by wider gap (Fig. 68). Penis narrow- er (Fig. 69). 2 nd valvulae of ovipositor with 9–11 preapical teeth each (as in Figs 61, 67) .............. M. daurica Tish.

— Smaller; ♂, 3.8–4.3 mm, ♀, 4.6–5.0 mm, male 2 nd sternal apodemes separated by comparatively narrow gap (Fig. 70). Penis wider (Fig. 71). 2 nd valvulae of ovipositor with 4 preapical teeth each (Fig. 72) ......... M. tarbagataica Mit.

10. Male 2 nd sternal apodemes strongly convergent, with lobes overlapping or touching each other (Figs 73–74). Yellowish with black spots on fore part of body ( Fig. 25 ); forewings brown with light veins and occasionally with dark pattern ....................................... M. perpetua Tish.

— Lobes of male 2 nd sternal apodemes separated by gap (Figs 75, 77) ........................................................................ 11

11. Yellow with dark pattern, forewings semi-transparent greyish with yellow costal margin ( Figs 26–27 ). Small species; ♂, 3.3–3.5 mm, ♀, 3.6–3.9 mm ........... M. murina Tish.

— Pale yellowish or brown, forewings transparent with brown transverse stripes, brown, or reddish brown, with costal margin of the same colour or only slightly lighter than the main part ( Figs 28–45 ). ♂ larger than 3.9 mm, ♀ larger than 4.4 mm ............................................................... 12

12. Very large species; ♂, 5.2–5.4 mm, ♀, 5.8–6.3 mm. Forewings transparent with two more or less distinct transverse brown stripes ( Figs 28–29 ). Male 2 nd tergal apodemes comparatively long, with more or less developed round notches on inner edges (Fig. 76). Penis wide, with distinct extension at bend (Fig. 78) ....................... .............................................................. M. regalis Tish.

— ♂ smaller than 5.0 mm, ♀ smaller than 5.7 mm. Male 2 nd tergal apodemes shorter, more or less rounded, with less developed if any notches on inner edges (Figs 79–80, 83– 85, 93–95). Forewings in male usually without transverse stripes ......................................................................... 13

13. Male brown or greyish brown, almost always with black frontal spot ( Fig. 30 ); in darkest males upper part of head entirely black. Male 2 nd tergal apodemes comparatively narrow (Figs 79–80). Female yellowish, reddish brown, or brown ( Figs. 31–32 ); occasionally, greenish. 2 nd valvulae of ovipositor with one preapical tooth each (Fig. 82); sometimes, small additional denticle presents on one valvula. On Populus tremula ............ M. fuscinervis (Boh.)

— Face usually unmarked ( Figs. 33–38, 40–43 ), only very occasionally with black spots ( Figs. 39, 44–45 ). Male 2 nd tergal apodemes usually wider (Figs 83–85, 93–95). 2 nd valvulae of ovipositor with more than three preapical teeth each (Figs. 92, 101–102). On willows ............. 14

14. Penis in side view usually wider (Figs 86–91). Male 2 nd tergal apodemes with smooth outer margins (Figs 83–85). 2 nd valvulae of ovipositor with 4–6 preapical teeth each (Fig. 92). Larger; in populations from Mongolia, ♂, 4.7– 5.0 mm, ♀, 4.9–5.7 mm ..................... M. cerea (Germ.)

— Penis in side view usually narrower (Figs 96–100). Outer margins of male 2 nd tergal apodemes often with denticle on one or both sides (Figs 93–95). 2 nd valvulae of ovipositor with 8–10 preapical teeth each (Figs 101–102). Smaller; in populations from Mongolia, ♂, 3.9–4.6 mm, ♀, 4.4– 5.3 mm ................................................. M. flavida Vilb .

15. 2 nd tergal apodemes narrow triangular, usually longer than their width at base (Figs 103–104). Pale yellowish or greenish, male usually with dark pattern on head, pro-, and mesonotum, female often lacks any dark pattern ( Figs 46–47 ). On Populus from the subgenus Turanga ......... ............................................................ M. scabrosa Kor.

— 2 nd tergal apodemes shorter, with widely rounded lobes (as in Figs. 94–95) ........................................................... 16

16. Forewings uniformly brown ( Fig. 48 ). On Rosa ........... ........................................................ M. megerlei (Fieb.)

— Forewings semi-transparent, usually with dark pattern and/or partially darkened veins ( Figs 49–52 ). On Hippophae rhamnoides ..................................................... 5

15. Larger, ♂, 4.5–5.0 mm, ♀, 5.3–6.1 mm ( Figs 49–50 ) .... ........................................................ M. pictipes (Horv.) .

— Smaller, ♂, 3.4–3.7 mm, ♀, 4.2– 4.5 mm ( Figs 51–52 ) ... ........................................................ M. emeljanovi Dub.

Figures

Figs 7–32. Macropsis spp., lateral view. Рис. 7–32. Виды рода Macropsis, сбоку.

Figs 33–52. Macropsis spp., lateral view. Рис. 33–52. Виды рода Macropsis, сбоку.