Cebrionini
Latreille, 1802
Genus Guides
2- Scaptolenus(Rain click beetles)
- Selonodon
Cebrionini is a tribe of click beetles ( Elateridae) within the Elaterinae. Members are small to medium-sized beetles, 8–20 mm in length, with variable antennal forms including , , serrate, pectinate, or . The tribe exhibits notable in ability: males fly at night and are attracted to lights, while females in several (including Cebrio, Selonodon, and Euthysanius) are flightless. Larvae are soil-dwelling. The tribe is globally distributed except for Australia and New Zealand, with particular abundance in arid regions of the Holarctic, Neotropical, Afrotropical, and Oriental regions.
Pronunciation
How to pronounce Cebrionini: /sɛb.rioʊˈniː.naɪ/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Cebrionini can be distinguished from other click beetle tribes by the following combination of characters: body length 8–20 mm with length-to-width ratio 2.5–4.55; body slightly flattened to moderately convex with distinct hairs, setae, or on upper surfaces; 11 or 12 antennomeres (number sometimes sexually dimorphic); to , with modifications beginning on antennomere 3 or 4, lacking an club; strongly protuberant with vertical diameter less than twice horizontal diameter, finely facetted, of exocone type; moderately to very narrow and elongated, without mola, with strongly and abruptly curved mesal apex; pronotum with lateral carinae complete, incomplete, or absent; with 9 puncture rows or ; and 5, 6, or 7 abdominal ventrites. The presence of a clicking mechanism is variable (absent or present).
Images
Habitat
Arid and semi-arid regions, particularly in the Holarctic, Nearctic, Palearctic, Neotropical, Afrotropical, and Oriental regions. Larvae inhabit soil.
Distribution
Absent from Australia and New Zealand. Present in most other parts of the world, with particular abundance in arid regions of the Holarctic Region, Nearctic, Palearctic, Neotropical, Afrotropical, and Oriental regions.
Life Cycle
Larvae live in soil. : males fly at night; females in several (Cebrio, Selonodon, Euthysanius) are flightless.
Behavior
Males fly at night and are attracted to lights. Females in several are flightless. Some groups are known from males only.
Ecological Role
Soil-dwelling larvae likely contribute to soil nutrient cycling and structure.
Human Relevance
Males may be encountered at artificial light sources. No significant economic importance documented.
Similar Taxa
- Other Elaterinae tribesCebrionini differs in its combination of antennal structure (variable from to , modifications beginning on antennomere 3 or 4), variable presence of clicking mechanism, and the frequent occurrence of flightless females in certain .