Mimastra kremitovskyi, Bezděk, 2009

Bezděk, Jan, 2009, Revisional study on the genus Mimastra (Coleoptera: Chrysomelidae: Galerucinae): Species with unmodified protarsomeres in male. Part 1., Acta Entomologica Musei Nationalis Pragae 49 (2), pp. 819-840 : 833-834

Mimastra kremitovskyi sp. nov.

( Figs. 17 , 20 , 31 )

Type locality. China, Yunnan, Lijiang (26°49´N 100°07´E).

Type material. HOLOTYPE: J, ‘ 3.6.2006 Čína / N 26°49, E 100°07 / lgt. Kremitovský [w, p]’ ( NMPC) . PARATYPES: 5 JJ 7 ♀♀, same label data as holotype (1 ♀ in NMPC, 2 JJ 2 ♀♀ in VKBC, remaining spec. in JBBC) ; 4 JJ 5 ♀♀, ‘ China, Yunnan, 2500 m, / Lijiang env., 3.–5.vi.2006, / N 26°48,05´E 100°24,74´/ R. Novák leg. [w, p]’ (2 JJ 2 ♀♀ in RNDC, rest in JBBC). The specimens are provided with additional, printed red labels : ‘ HOLOTYPUS [or PARATYPUS], / Mimastra / kremitovskyi sp. n., / J. Bezděk det. 2008.

Description. Body length: males 8.25–8.80 mm (holotype 8.40 mm); females 8.60– 10.55 mm.

Male. Body flattened, subparallel, glabrous. Head orange, base with black collar extending in a triangular shape behind eyes, frontal tubercles and vertex with rhomboidal black spot connected posteriorly with basal collar, anterior part of head with triangular brownish black spot, apices of mandibles black. Antennomeres 1–3 yellow, antennomeres 4–5 gradually darkened, remaining segments black. Pronotum orange with five small black spots forming together the letter M: two spots in the middle of disc, one median spot in front of pronotal base and two lateral spots behind posterior angles (the three median spots connected through a dark brown, vaguely delimited area). Scutellum brownish. Elytra with large metallic black stripe with orange margins covering most of elytral disc including humeral calli and reaching elytral apex; epipleura orange. Prosternum orange with black middle. Mesosternum black, mesoepimera yellow. Metasternum and abdomen black. Fore and middle legs: coxae orange, basally black; trochanters orange; femora orange with narrow black stripe on outer margin and broader black, basally extended stripe on inner margin; tibiae orange, gradually darkened apically, outer side with narrow black stripe. Hind legs: coxae black; trochanters orange, infuscated in the middle; femora black with paler base and apex; tibiae black. Fore tarsi brownish, middle and hind tarsi black.

Labrum transverse, anterior part with several long pale setae, anterior margin slightly concave. Anterior part of head lustrous, almost glabrous, with several pale setae on anterior part of clypeus and in front of antennal insertions. Frontal tubercles lustrous, smooth, subtriangular, slightly elevated, separated from each other by distinct furrow. Interantennal space 0.9 times as wide as transverse diameter of antennal insertion. Vertex semiopaque, covered with microsculpture, glabrous, impressed behind frontal tubercles. Antennae filiform, 0.90 times as long as body, length ratios of antennomeres 1–11 equal to 20-6-9-18-18-16-16-16- 16-14-15.

Pronotum tranverse, 1.75 times as broad as long, widest in middle. Surface lustrous, sparsely covered with very small punctures, glabrous, moderately convex, with two longitudinal lateral depressions. All margins distinctly bordered. Anterior margin moderately concave, posterior margin almost straight in middle and rounded on sides. Lateral margins nearly straight and parallel.Anterior angles acute, rounded, slightly produced anteriad, posterior angles obtusely angulate. All angles with setigerous pore bearing one long pale seta.

Scutellum triangular with rounded apex, lustrous, glabrous, almost smooth.

Elytra lustrous, slightly divergent posteriad, glabrous, posterior fourth very scarcely covered with hardly visible setae. Humeral calli well developed. Elytral surface covered with small and very dense, confluent punctures. Epipleura broad in anterior fourth, gradually narrowed towards apex. Macropterous.

Ventral surface semiopaque, finely punctate and covered with pale hairs. Last ventrite with distinct drop-like impression in middle, posterior margin concave.

Hind tarsomere 1 1.3 times as long as two following tarsomeres combined. Aedeagus as in Fig. 20 .

Female. Last ventrite widely rounded. Abdomen robust. Spermatheca as in Fig. 17 .

Differential diagnosis. Mimastra kremitovskyi sp. nov. is habitually very similar to M. limbata Baly, 1879 . Both species differ in the colour of the elytral stripe (metallic black in M. kremitovskyi sp. nov., metallic blue-green in M. limbata ) and the shape of the protarsomere in males (not modified in M. kremitovskyi sp. nov., hook-like in M. limbata ). Other similar species, M. maai and M. malvi , are smaller in size and differ in having uniformly yellow pronotum and head and different structure of the aedeagus ( Figs. 3–4 , 20 ).

Etymology. Dedicated to Vladimír Kremitovský ( Czech Republic, Brno), who collected a part of the type series.

Biology. Unknown.

Distribution. China: Yunnan.

Figures

Figs. 14–17. Spermatheca. 14 – Mimastra submetallica Jacoby, 1884; 15 – M. sumatrensis Jacoby, 1884; 16 – M. jelineki sp. nov.; 17 – M. kremitovskyi sp. nov. Scale bars: 0.5 mm.

Figs.18–21.Aedeagus (a – dorsal view; b – lateral view; c – ventral view). 18 – Mimastra sumatrensis Jacoby, 1884; 19 – M. jelineki sp. nov.; 20 – M. kremitovskyi sp. nov.; 21 – M. riedeli sp. nov. Scale bars: 1 mm.

Figs. 30–32. Habitus. 30 – Mimastra jelineki sp. nov. (paratype, female, 8.60 mm); 31 – M. kremitovskyi sp. nov. (paratype, female, 8.45 mm); 32 – M. riedeli sp. nov. (paratype, male, 7.25 mm).

Figs. 1–4. Aedeagus (a – dorsal view; b – lateral view; c – ventral view). 1 – Mimastra badia Kimoto, 1989; 2 – M. fortipunctata Maulik, 1936; 3 – M. maai Gressitt & Kimoto, 1963; 4 – M. malvi Chen, 1942. Scale bars: 1 mm.