Trichalus ampliatus, copyright Steve Kerr.

Belongs within: Lycidae.

Trichalus is a genus of lycid beetles with distinct areolet(s) on the prothorax, which covers the head, and a trifurcate subsutural costa on the elytra. The species T. insignis from New South Wales is distinguished by a double discal areolet on the pronotum in contrast to the single areolet of other species (Lea 1909).

<==Trichalus Wat. 1877 [incl. Xantheros Fairm. 1879]L09
    |--T. ampliatus Waterh. 1877 [incl. T. auritus Lea 1893, T. distinctus Lea 1893]L09
    |--T. amplipennis (Macleay 1886)L09, Mac86 [=Calopteron amplipenneL09]
    |--T. angulicollis (Fairm. 1877) [=Xantheros angulicollis]L09
    |--T. angustulus Macl. 1887L09
    |--T. apicalis Macleay 1886Mac86
    |--T. apiciflavus Lea 1909L09
    |--T. ater (Macl. 1887) [=Xylobanus ater]L09
    |--T. atripennis (Macl. 1887) [=Xylobanus atripennis]L09
    |--T. bifurcatus Lea 1909L09
    |--T. discoideus (Erichs. 1842)L09 [=Metriorrhynchus discoideusMas86, Porrostoma discoideumL09]
    |--T. flabellicornis Lea 1909L09
    |--T. flavopictus Waterh. 1877L09
    |--T. froggatti (Macl. 1887) [=Xylobanus froggatti]L09
    |--T. funereus Blackb. 1900L09
    |--T. griffithi Lea 1909L09
    |--T. insignis Lea 1874L09
    |--T. nubicollis (Fairm. 1877) [=Xantheros nubicollis]L09
    |--T. ochreatus (Fairm. 1877) [=Xantheros ochreatus]L09
    |--T. pallidipennis Macleay 1886Mac86
    |--T. semiatratus Lea 1909L09
    |--T. semicostatus (Blackb. 1891) [=Metriorrhynchus semicostatus; incl. T. raymondi Lea 1893]L09
    |--T. serraticornis [=Lycus serraticornis]L09
    `--T. sulcatus Waterh. 1877L09

*Type species of generic name indicated


[L09] Lea, A. M. 1909. Revision of the Australian and Tasmanian Malacodermidae. Trans. Ent. Soc. Lond. 1909 (1): 45–251, pls 2–6.

[Mac86] Macleay, W. 1886. The insects of the Fly River, New Guinea, “Coleoptera”. Proceedings of the Linnean Society of New South Wales, series 2, 1 (1): 136–157.

[Mas86] Masters, G. 1886. Catalogue of the described Coleoptera of Australia. Part IV. Proceedings of the Linnean Society of New South Wales, series 2, 1 (2): 259–380.

Leave a comment

Your email address will not be published. Required fields are marked *