Key to the species of Cylinderina

1. Femora metallic black........................................................... 2 — Femora reddish................................................................ 3

2(1). Epipleura black; elytra with broad, curved metallic margin, middle band short................ 3. Cylindera (Cylinderina) sierramadrensis Wiesner and Dheurle, new species

— Epipleura rufous; elytra with small metallic margin; middle band long................................................... 2. Cylindera (Cylinderina) nana (Schaum, 1862)

3(1). Pronotum globose, shorter than wide.................................................................... 7. Cylindera (Cylinderina) genieri Cassola and Werner, 2003

— Pronotum plain, as long as wide................................................... 4

4(3). Elytra with straight middle band....... 1. Cylindera (Cylinderina) nanula (Horn, 1937) — Elytra without middle band, but with or without small marginal dot..................... 5

5(4). Sternae and episternae glabrous throughout...................................................................... 6. Cylindera (Cylinderina) rothschildi (Horn, 1896)

— Only metepisternum glabrous, all the rest setose..................................... 6

6(5). Elytra of females with a mirror-like area in front; elytra with no testaceous maculation; antennae of males reaching the apical fourth of the elytral length...................................................... 8. Cylindera (Cylinderina) vandenberghei Dheurle, 2016

— Elytra of females without a mirror-like area; central part of elytra dull; elytral maculation, if existing, showing at least a small subhumeral dot; antennae of males shorter.......... 7

7(6). Elytra with postapical dot and triangular middle spot............................................................. 4. Cylindera (Cylinderina) pseudonana (Horn, 1924)

— Elytra lacking postapical dot; middle spot, if present, forming a small line............................................... 5. Cylindera (Cylinderina) werneri Wiesner, 1988