A new species of tiger beetles of genus Cylindera Westwood, 1831 (Coleoptera, Carabidae: Cicindelinae) from northern Vietnam

• Cylindera (Ifasina) ilonae sp. nov. is described from northern Vietnam.
• The new species is very similar with Cylindera (Ifasina) lesnei Babault, 1923.
• It differs by the larger size, colour of labrum and elytra, and shape of aedeagus.
• The identification key to the species of subgenus Ifasina of Vietnam is given.

A new tiger beetles species, Cylindera (Ifasina) ilonae sp. nov. is described from northern Vietnam (Tuyên Quang province: Na Hang district). This new species is readily distinguished from the closely related species Cylindera (Ifasina) lesnei Babault, 1923, C. (I.) decolorata (W. Horn, 1907) and C. (I.) psilica (Bates, 1866) by the larger size, shape and colour of the labrum and pronotum, elytral coloration and maculations, as well as size and shape of the aedeagus. The identification key to the species of subgenus Ifasina of Vietnam is given.

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