Elateridae, Leach, 1815

Rosas, Matilda. L., Chan, Cynthia & Reid, Chris. A. M., 2025, A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae), Zootaxa 5711 (3), pp. 341-364 : 362

Key to genera of Elateridae on Lord Howe Island

1 Each tarsal claw with stiff seta at about middle of ventral edge................................................. 2

- Tarsal claws without setae.............................................................................. 5

2(1) Pronotum with adpressed scales; tarsi without lamellae....................................................... 3

- Dorsal surface without scales; tarsomere 4 with lamella....................................................... 4

3(2) Pronotal hypomeron without antennal cavities; large patches of white or pale grey setae or scales present on dorsum; length> 15mm................................................................................ Cryptalaus Ohira

- Pronotal hypomeron with antennal cavities; dorsal vestiture dark; length < 12 mm................. Agrypnus Eschscholtz

4(2) Posterior angles of pronotum with 2 distinct carinae; apices of elytra concave; antennomeres with or without lateral carina; length 7–18 mm................................................................. Monocrepidius Eschscholtz

- Posterior angles of pronotum with one carina; apices of elytra convex; antennomeres without lateral carina; length 3–8 mm..................................................................................... Heteroderes Latreille

5(1) Tarsomeres with dense pads or lamellae ventrally............................................................ 6

- Tarsomeres simple ventrally............................................................. Ochosternus Candèze

6(5) Lamellae on tarsomeres 1–4; prosternum anteriorly truncate; length ≥ 11mm............... Austrelater Calder & Lawrence

- Lamella on 4 th tarsomere only; prosternum anteriorly produced; length ≤ 10mm................... Glyphochilus Candèze