Genus
Chaetotaxis
14 species
*Chaetotaxis* is a medium-sized Afrotropical tiger beetle genus of 12 species distributed across central and east-central Africa. These metallic beetles, typically 10–16 mm in length, are nocturnal hunters of open, wet habitats on compacted laterite, clay-pan, and sandy substrates. Their elongate elytra are adorned with conspicuous large, shallow iridescent foveae in cupreous, bronze, blue, or greenish tones, with whitish maculation concentrated along the lateral margins. The genus name reflects a distinctive bristle arrangement on the head, with just two juxtaorbital setigerous pits flanking otherwise glabrous surfaces.
Diagnosis
DIAGNOSIS — *Chaetotaxis* Jeannel, 1946. Body 10–16 mm, cylindrical, metallic, fully winged. Head glabrous except 2 juxtaorbital setigerous pits. Labrum transverse, 4-setose; anterolateral teeth separated from median lobe by deep notches. Elytra elongate, with conspicuous large but shallow iridescent foveae (cupreous, bronze, blue or greenish); whitish maculation mostly lateral. Nocturnal; open wet habitats on compacted laterite, clay-pan or sandy substrate (sub-Saharan Africa). 12 species. No confusion genera recorded.
Etymology
From Greek *chaítē* (bristle) + *táxis* (arrangement, order) — "bristle arrangement".
Species (14)
Distribution map — GBIF occurrences
GBIF · © OpenStreetMap · © CartoDB
Overview
*Chaetotaxis* is a medium-sized Afrotropical tiger beetle genus of 12 species distributed across central and east-central Africa. These metallic beetles, typically 10–16 mm in length, are nocturnal hunters of open, wet habitats on compacted laterite, clay-pan, and sandy substrates. Their elongate elytra are adorned with conspicuous large, shallow iridescent foveae in cupreous, bronze, blue, or greenish tones, with whitish maculation concentrated along the lateral margins. The genus name reflects a distinctive bristle arrangement on the head, with just two juxtaorbital setigerous pits flanking otherwise glabrous surfaces.
Type species: Megalomma rugicolle Fairmaire, 1871 [by original designation]
1. Wiesner, J. (2020) — checklist authority 2. Rivalier, E. (1960) — original genus description 3. Werner, K. (2000) — Tiger Beetles of Africa, Vol. 2 — generic context 4. Cassola, F. (various papers) — regional faunistic records 5. Werner, K. (1999/2000) — The Tiger Beetles of Africa (Coleoptera: Cicindelidae). Volumes I (1999, 191 pp) and II (2000, 207 pp). Taita Publishers, Hradec Králové, Czech Republic. [Color picture-catalogue of 396 species in 34 genera; covers sub-Saharan Africa excluding Madagascar; 779 colour photographs in Vol II alone] 6. Duran, D.P. & Gough, H.M. (2020) — Validation of tiger beetles as distinct family (Cicindelidae) and reclassification within Coleoptera. Systematic Entomology 45(4): 723-729. DOI: 10.1111/syen.12440 [validates Cicindelidae as separate family] 7. Gough, H.M., Duran, D.P., Kawahara, A.Y. & Toussaint, E.F.A. (2018) — A comprehensive molecular phylogeny of tiger beetles (Coleoptera, Carabidae, Cicindelinae). Systematic Entomology 43(3): 567-586. DOI: 10.1111/syen.12324 [ML phylogeny of 328 taxa, 9 gene regions] 8. Wiesner, J. (2020) — Checklist of the Tiger Beetles of the World, 2nd edition (Verzeichnis der Sandlaufkäfer der Welt, 27. Beitrag zur Kenntnis der Cicindelidae). Winterwork, Borsdorf, 534 pp. [Authoritative current world checklist] 9. Cassola, F. (1971-2010) — Studies on Tiger Beetles (Coleoptera, Cicindelidae) — numbered series of papers (over 120 contributions) published primarily in Bollettino della Società Entomologica Italiana, Fragmenta Entomologica, Lambillionea, Coleopterists Bulletin, Quaderni del Friuli-Venezia Giulia, and Biota Colombiana. Provides taxonomic descriptions, regional faunal lists, and cytotaxonomic studies covering Afrotropical, Oriental, and Neotropical regions. +4 citations · full list in paid edition
Living Book · World Monograph 2026
Genera and Subgenera of Tiger Beetles
240 genera · 3,715 taxa · 194-character matrix · 12 months free updates