Clitenella, LABOISSIERE, 1927

Lee, Chi-Feng & Bezdĕk, Jan, 2021, Taxonomic Notes on Clitenella Laboissière, 1927 (Coleoptera: Chrysomelidae: Galerucinae), with Redescription of Three Species, The Coleopterists Bulletin 75 (4), pp. 845-858 : 856

KEY TO SPECIES OF THE GENUS CLITENELLA

1. Dorsum bronzy metallic green or golden green, elytra with purplish spots or stripes ( Figs. 1A, D , 4A ) .................................... 2

1′. Dorsum bronzy metallic green or blue, elytra without purplish areas ( Figs. 1C, F , 4C–E ) ......................................................... 4

2. Pronotum without purple patches or with one pair of purple patches; elytra with two large purplish areas ( Figs. 1A, D , 4A ) .................... ..................................................................... 3

2′. Pronotum with one large central purple patch; elytron with two longitudinal purplish stripes ............................................................ ..................... C. purpureovittata Chen, 1942

3. Pronotum without purple patches but with sparse, coarse punctures ( Figs. 1A, D ); vertex without pubescence ………………… ………… C. fulminans ( Faldermann, 1835)

3′. Pronotum with one pair of purple patches and with dense, fine punctures ( Fig. 4A ); vertex with dense, short pubescence ……… …………… C. ignitincta (Fairmaire, 1878)

4. Elytra with two pairs of transverse depressions, one pair at basal 1/3, the other at middle ( Figs. 1A, C, D, F ); elytral epipleura almost reaching apices .............................................. ................ C. fulminans ( Faldermann, 1835)

4′. Elytra with one pair of transverse depressions at basal 1/3 ( Figs. 4C–E ); elytral epipleura abbreviated at apical 1/3 or 1/4 ................... 5

5. Pronotum with punctures medially reduced; antennae and legs yellow ( Fig. 4C ) ................. ........................ C. punctata LaboissiÈre, 1927

5′. Pronotum with dense punctures; antennae and legs black, or metallic blue or green ( Figs. 4D, E ) ................................................. ............. C. unicolor Samoderzhenkov, 1988

Figures

Fig. 1. Habitus of adult Clitenella fulminans. A) Male, collected from Taiwan, dorsal view, B) Ditto, ventral view, C) Female, collected from Taiwan, blue color form, dorsal view, D) Male, collected from Laos, dorsal view, E) Ditto, ventral view, F) Male, collected from Laos, blue color form, dorsal view.

Fig. 4. Habitus of adult Clitenella species.A) C. ignitincta, female, dorsal view, B) Ditto, ventral view, C) C. punctata, male, dorsal view, D) Holotype of C. unicolor, dorsal view, E) C. unicolor, female, from Sumbawa Island, dorsal view, F) Ditto, ventral view.