Macropsis

Tishechkin, Dmitri Yu., 2015, Taxonomic study of Central Asian species of the genus Macropsis Lewis, 1836 (Homoptera: Auchenorrhyncha: Cicadellidae: Macropsinae). III: Descriptions of two new willow-dwelling species, new s, Zootaxa 3985 (1), pp. 31-52: 39-40

publication ID

http://dx.doi.org/10.11646/zootaxa.3985.1.2

publication LSID

lsid:zoobank.org:pub:F789B3E3-E99B-4525-A59D-47557D0F55E8

persistent identifier

http://treatment.plazi.org/id/038F8782-FFC3-FFBD-FF2E-0EE6A9063E9D

treatment provided by

Plazi

scientific name

Macropsis
status

 

Key to species of Macropsis  of Central Asia (males)

Species identification in the genus Macropsis  is very difficult because of the uniform morphology of male genitalia. Some species differ in the shape of 2 nd abdominal apodemes, but are otherwise similar in appearance, others differ in color but are similar in the shape of the apodemes. European species feeding on Salicaceae  differ in the number of preapical teeth on the 2 nd valvulae of the ovipositor ( Tishechkin, 2002 a), but Central Asian species are indistinguishable in this trait. For this reason in species dwelling on Salicaceae  with the exception of M. viridobrunnea Dlab.  identification of females not associated with males, as a rule, is impossible. Females are also indistinguishable in the two species dwelling on oleaster. Females from other species groups in most cases can be identified by appearance using color photographs ( Figs. 105–148View FIGURES 105 – 128View FIGURES 129 – 148). In most species, females are similar to males, but have somewhat lighter coloration. If females are strongly different from males, this is noted in the key.

Both 2 nd abdominal apodemes and coloration are quite variable in Macropsis  . For this reason investigation of several specimens is advisable for reliable identification. Data on host associations are also an aid in species diagnostics.

1. 2 nd tergal apodemes elongated, with more or less expanded tips, separated by large round notch (Figs. 149–150). Body and forewings brown ( Fig. 105View FIGURES 105 – 128). ♂, 3.6–3.9 mm, ♀, 4.2–4.5 mm. On Ulmus  ............................. M. illota (Horv.)  .

- Combination of characters is different...................................................................... 2

2. 2 nd tergal apodemes wide, rounded, separated by small round notch (Fig. 154). Pale yellowish with black pattern, forewings semi-transparent with black veins ( Figs. 106–107View FIGURES 105 – 128). ♂, 3.2–3.4 mm, ♀, 3.4–3.9 mm. On Spiraea  ......... M. sibirica Kusn. 

- Combination of characters is different...................................................................... 3

3. Penis shaft in side view broad, usually bent at obtuse angle (Figs. 183–184, 192 – 193, 204–205, 222 – 223, 230–231, 238 – 239, 245–246, 252 – 253, 259 – 260)............................................................................. 4

- Penis shaft in side view narrow, if more or less broad, bent at right angle (Figs. 67 –71, 76, 85–86, 263 – 264, 276–277, 289, 292, 295, 297, 299, 302)................................................................................... 17

4. 2 nd tergal apodemes elongate, broad, broadly separated by an oval or U-shaped notch (Figs. 157–160). Body pale green or grayish green, forewings infumose or transparent ( Figs. 108–110View FIGURES 105 – 128). ♂, 4.0– 4.4 mm, ♀, 4.7–5.2 mm. On Populus alba  .................................................................................................. M. vicina (Horv.) 

- 2 nd tergal apodemes of another shape....................................................................... 5

5. 2 nd tergal apodemes narrow, separated by very broad rounded notch (Figs. 165–168), sternal apodemes usually with expanded bases and wide tips, strongly convergent or even somewhat overlapping with each other (Figs. 169–173). Frontal spot absent. Usually green, occasionally brown or reddish-brown ( Figs. 111–115View FIGURES 105 – 128). ♂, 4.4–4.8 mm, ♀, 5.0– 5.6 mm. On black poplars......................................................................................... M. validiuscula Dub. 

- 2 nd tergal apodemes broad, separated by more narrow notch (Figs. 174–178, 185 – 186, 194–195, 198 – 199, 206–207, 216 – 217, 224–225, 232 – 233, 240–241, 247 – 248, 254 – 255), sternal apodemes usually more narrow. If tergal apodemes more or less narrow (Figs. 174–175, 211 – 213), body size either smaller (♂ <4.0 mm, ♀ <5.0 mm) or head with frontal spot............. 6

6. Male brown or yellowish, usually with dark pattern on pro- and mesonotum ( Figs. 116–117, 119View FIGURES 105 – 128)...................... 7

- Male green, sometimes forewings more or less infumose ( Fig. 123View FIGURES 105 – 128) or even almost entirely black ( Fig. 124View FIGURES 105 – 128).............. 9

7. Male yellowish, with dense dark pattern on pro- and mesonotum ( Fig. 116View FIGURES 105 – 128), 2 nd tergal apodemes separated by rather wide gap

(Figs. 174–178). Female yellowish with dark pattern, reddish brown or green, frontal spot usually present. ♂, 4.5–4.7 mm, ♀, 5.1–5.4 mm. On introduced Siberian and Far-Eastern poplar species................................. M. suspecta Tish.  - Male brown with dark pattern ( Figs. 117, 119View FIGURES 105 – 128), 2 nd tergal apodemes separated by rather narrow gap (Figs. 185–186, 194 – 195).................................................................................................... 8

8. Grayish brown or brown, usually with dark pattern on face ( Fig. 117View FIGURES 105 – 128). 2 nd sternal apodemes usually elongated, with more or less straight inner margins (Figs. 196–197). Female similar to male or reddish brown, black pattern less developed or entirely absent ( Fig. 118View FIGURES 105 – 128). ♂, 3.6–4.2 mm, ♀, 4.0– 4.4 mm. On Salix rosmarinifolia  ........................... M. impura (Boh.)  .

- Reddish brown to brown, without dark pattern on face ( Fig. 119View FIGURES 105 – 128). 2 nd sternal apodemes wide triangular, usually short, with rounded projections on inner margins (Figs. 187-191). Female similar to male or green with various dark pattern, crown, pro-, mesonotum, and mesonotal margins of forewings usually black, brown or pale yellowish ( Figs. 120–122View FIGURES 105 – 128). ♂, 4.0– 4.5 mm, ♀, 4.6–5.1 mm. On different willow species................................................. M. viridobrunnea Dlab. 

9. 2 nd sternal apodemes with distinct projections at base on inner margins (Figs. 200-203). Penis in side view comparatively short and broad (Figs. 204–205). Forewings transparent ( Fig. 123View FIGURES 105 – 128) or infumose, sometimes almost black ( Fig. 124View FIGURES 105 – 128). Female similar to male, but with forewings less infumose or transparent ( Fig. 125View FIGURES 105 – 128). ♂, 3.4–3.9 mm, ♀, 4.1–4.5 mm. On S. niedzwieckii  ........................................................................................... M. abdullaevi Dub. 

- 2 nd sternal apodemes without projections at base on inner margins, if very rarely, with projections (Fig. 249), penis in side view comparatively narrow (Figs. 252–253). Forewings never black, sometimes only infumose in distal part................. 10

10. 2 nd sternal apodemes with tips separated by gap or, very rarely, touching each other (Figs. 214–215, 218 – 221, 226–229, 234 – 237, 242–244, 249 – 251, 256 – 258)........................................................................ 11

- 2 nd sternal apodemes with tips overlapping or, very rarely, only touching each other (Figs. 208-210). ♂, 3.4–3.8 mm; ♀, 4.2– 4.6 mm. On S. alba  ........................................................................ M. milkoi  sp. n.

11. 2 nd sternal apodemes strongly bent ventrally, convergent, separated by small round notch (Figs. 214–215). 2 nd tergal apodemes comparatively narrow and elongated, slightly bent inwards (Figs. 211–213). ♂, 3.5–3.9 mm; ♀, 4.1–4.7 mm. On Salix  sp.......................................................................................... M. anufrievi  sp. n.

- 2 nd sternal apodemes directed more or less dorsally, separated by wider notch (Figs. 218–221, 226 – 229, 234–237, 242 – 244, 249–251, 256 – 258). 2 nd tergal apodemes usually wider and shorter (Figs. 216–217, 224 – 225, 232–233, 240 – 241, 247–248, 254 – 255)............................................................................................ 12

12. 2 nd sternal apodemes with tips separated by narrow gap, sometimes almost touching each other (Figs. 218–221, 226 – 229).. 13

- 2 nd sternal apodemes usually with tips separated by wide gap (Figs. 234–237, 242 – 244, 249–251, 256 – 258), if very rarely, with tips almost touching each other (Fig. 251), penis in side view comparatively narrow (Fig. 252–258) and coloration bright green.............................................................................................. 14

13. 2 nd sternal apodemes rather narrow (Figs. 216–217). Bright yellowish green. On S. pycnostachya  . ♂, 3.7–4.1 mm; ♀, 4.3–4.9 mm .................................................................................... M. asiatica Dub. 

- 2 nd sternal apodemes wider, especially at the base (Figs. 224–225). Paler, without yellowish tinge. ♂, 3.8–4.3 mm; ♀, 4.4 –5.0 mm. On S. turanica  ......................................................................... M. iliensis Mit. 

14. Penis stem in side view broadest in the middle (Figs. 238–239). ♂, 3.5–3.7 mm; ♀, 3.9–4.6 mm. On S. niedzwieckii  .............................................................................................. M. ibragimovi Dub. 

- Penis stem in side view almost of same width at base as in middle (Figs. 245–246, 252 – 253, 259 – 260). ♂> 3.8 mm; ♀> 4.5 mm ................................................................................................ 15

15. 2 nd tergal apodemes with well-defined incisions on the inner margins (Figs. 240–241), sternal apodemes with slightly expanded truncate lobes (Figs. 242–244). Bright green, male usually with black frontal spot. ♂, 3.9–4.3 mm; ♀, 4.5–4.9 mm. On S. alba  ........................................................................................ M. ocellata Prov. 

- 2 nd tergal apodemes with concave inner margins, but without well-defined incisions (Figs. 247–248, 254 – 255), sternal apodemes usually with rounded lobes (Figs. 249–251, 256 – 258)................................................... 16

16. 2 nd tergal apodemes shorter than width at base (Figs. 247–248). Sternal apodemes more or less triangular, separated by comparatively narrow notch (Figs. 249–251). Bright green, in male forewings usually more or less infumose. ♂, 3.8–4.3 mm; ♀, 4.6 – 5.0 mm. On different willow species....................................................... M. tarbagataica Mit. 

- 2 nd tergal apodemes of the same width and length or slightly longer than width at base (Figs. 254–255). Sternal apodemes slen- der, almost parallel-sided or narrow triangular, separated by broad U-shaped notch (Figs. 256–258). ♂, 4.1–4.4 mm; ♀, 4.6–5.1 mm. On S. alba  ........................................................................ M. tienschanica Tish. 

17. Both sexes pale greenish, unmarked ( Fig. 126View FIGURES 105 – 128). On Elaeagnus  ................................................. 18

- Coloration different, if green, male always with dark pattern on face and pronotum................................. 19

18. 2 nd tergal apodemes wide, of approximately same length as width at base, separated by narrow notch. Sternal apodemes wide, convergent, separated by round notch (Fig. 66). Styles with blunt tips (Figs. 72 –75, 77– 79). ♂, 3.3–3.7 mm; ♀, 3.9–4.3 mm ......................................................................................... M. elaeagni Em. 

- 2 nd tergal apodemes elongate, strongly convergent, separated by oval notch, usually with more or less expanded tips almost touching each other (Figs. 80–82). Sternal apodemes slender, with parallel inner margins and slightly convergent tips, separated by broad rectangular notch (Figs. 83–84). Styles with elongated pointed tips (Figs. 87–88). ♂, 3.0– 3.3 mm; ♀, 3.6–3.9 mm ................................................................................ M. elaeagnicola Dub. 

19. 2 nd tergal apodemes situated close to each other, separated by narrow gap (Figs. 261–262, 275). On Berberis  ............. 20

- 2 nd tergal apodemes separated by wide notch (Figs. 288, 290–291, 294, 296, 298, 300 – 301, 305)...................... 21

20. Outer outline of distal part of penis in side view straight or somewhat sinuate (Figs. 263–264). Pygofer processes rather thick and straight (Figs. 265–267). Styles with short tips bent inwards (Figs. 268–270). ♂, 3.7–4.3 mm; ♀, 5.0– 5.4 mm.