Chrysolina ivanovi, Mikhailov, 2022

Mikhailov, Yu. E., 2022, Review of Chrysolina immarginata species group from the subgenus Chalcoidea (Coleoptera: Chrysomelidae) with description of a new species, Russian Entomological Journal 31 (3), pp. 278-282 : 282

KEY FOR DETERMINATION OF CHRYSOLINA (IMMARGINATA)

SPECIES GROUP

1 (6) Aedeagus massive and broad, with spoon-shaped or strongly shortened apex. Male body length on average not less than 6.5 mm.

2 (3) Aedeagus apical projection spoon-shaped and dilated at bent down apex. Dorsum moderately shining, black with bronze reflection, rarely without metallic reflection ( Figs 6–8). Elytral epipleura and sometimes lateral stripe brown. Body length 5.7–7.3 mm (males), 6.8–8.3 mm (females). Northern and Central Tien-Shan in the limits of SE

Kazakhstan, eastern Kyrgyzstan (mainly Issyk-Kul region) and Xinjiang in China. From foothill steppes in Almaty region up to 2700–3400 m a.s.l. On Artemisia ... ............................................................ Ch. immarginata

3 (2) Aedeagus apical projection short, broad, with rounded apex.

4 (5) Dorsum slightly shining, black with weak metallic luster ( Fig. 9). Antennae and tarsi brown. Body length 6.7 mm (male). SW Kyrgyzstan: Alaisky Mt. range, 3400 m a.s.l. ................................................................... Ch. alaiensis

5 (4) Dorsum shining, greenish bronze, elytral epipleura and lateral stripe reddish ( Figs 12–13). Body length 6.5 mm (male), 7.2 mm (female). China: Xinjiang, Karlyktag Mt. range ...................................................... Ch. dieckmanni

6 (1) Aedeagus smaller with narrow apical projection. Male body length 6.3 mm.

7 (8) Dorsum dark bronze with strong metallic reflection. Pronotum distinctly broadened anteriorly and narrowed basally ( Fig. 11). Tarsi moderately dilated. China: Xinjiang, Bogdo-Ula Mt. range , 2800–3485 m a.s.l. .......... ........................................................................ Ch. luchti

8 (7) Dorsum black with bronze reflection. Pronotum evenly rounded laterally ( Fig. 10). Tarsi very slightly dilated. East Kazakhstan: sands eastwards of Lake Alakol ........ ............................................................ Ch. ivanovi sp.n.

Acknowledgements. I am grateful to Dr. Alexei Moseyko ( ZIN, St.- Petersburg, Russia), Dr. Stephan Blank and Mandy Schröter ( Senckenberg Deutsches Entomologisches Institut , Müncheberg, Germany) for the opportunity to work with the collections and kindly provided photos of the types, special thanks to Dr. Kirill Makarov (Moscow Pedagogical State University, Russia) for taking photos of other beetles .