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Longicorn ID: Tool for Diagnosing Cerambycidae Subfamilies and Tribes
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Trigonarthrini

Classification Introduction
  • The tribe Trigonarthrini Villiers, 1984 currently contains 4 species in 2 genera. Photographs of exemplar specimens are coming soon.
Diagnostic Features of Adults
  • Body moderate-sized, between 10-40 mm; generally ovoid. Eyes generally reniform, complete (not completely divided into upper and lower lobes). Antennae generally serrate, flabellate, or expanded laterally, unarmed; antennae 11-segmented, short, not extending beyond tip of abdomen. Pronotum generally transverse (distinctly wider than long); lateral margins of pronotum with distinct blunt tubercles. Mesocoxal cavities open to mesepimeron. Elytral apices without distinct spines. Metafemoral length compared to profemora variable, about as long or distinctly longer. Wings variable, from complete to absent or reduced.
Diagnostic Features of Larvae
  • Not yet available for this taxon.
Geographic Distribution of Tribe Biology and Economic Importance
  • Biology unknown for members of this tribe. Species of this tribe are potentially invasive outside their native range.
Selected References to Adult Specimens
Selected References to Larvae Specimens
    No records to show



Trigonarthron cinnabarinum
Boppe, 1913; dorsal
Cerambycidae:Cerambycinae:Trigonarthrini




idtools.org     Longicorn ID images on Bugwood ITP Node
Longicorn ID last updated 2020  E.H. Nearns, N.P. Lord, S.W. Lingafelter, A. Santos-Silva, K.B. Miller, & J.M. Zaspel