Homotrysis

Homotrysis macleayi, photographed by S. E. Thorpe.

Belongs within: Alleculinae.

Homotrysis is an Australian genus of rufous to piceous alleculine beetles.

Characters (from Matthews & Bouchard 2008): Length 5.0–17.0 mm. Colour of larger species piceous, sometimes with rufous elytra, smaller species fuscous or rufous often with legs flavous with dark femoral apices. Surfaces usually more or less densely setose with long erect or short recumbent setae, latter in larger species often pale or white and forming patches or V-shaped patterns on elytra, smaller species with uniformly short dense recumbent setae. Head short before eyes. Eyes relatively large. Antennae filiform or serrate, if latter a little wider in males. Mandibles clearly bidentate. Apical maxillary palpomere securiform but not greatly enlarged. Prothorax with complete lateral margin. Inner lamina of elytral sutures narrow throughout, not expanded apically, no sutural gap. Elytral punctures simple, not stomatiform. Intercoxal process of first abdominal ventrite acute. Males often with protibiae dentate on inner edges, rarely with flattened, twisted and widened metatibiae, exceptionally with modified mesotibia and long spur on profemur. Basal metatarsomere not widened.

<==Homotrysis Pascoe 1866 [incl. Hybrenia Pascoe 1866]MB08
    |--H. carbonaria (Germar 1848) [=Allecula carbonaria; incl. A. tristis Germar 1848, *Homotrysis tristis]MB08
    |--H. aenescens Carter 1921MB08
    |--H. aerea Carter 1921MB08
    |--H. albolineata Carter 1933MB08
    |--H. armata (Carter 1915) [=Metistete armata]MB08
    |--H. armipes (Carter 1932) [=Hybrenia armipes]MB08
    |--H. bicolor Champion 1895MB08
    |--H. boops (Carter 1930) [=Ommatophorus boops]MB08
    |--H. borchmanni (Carter 1933) [=Hybrenia borchmanni]MB08
    |--H. canescens (Hope 1843) [=Allecula canescens; incl. H. maculata Haag-Rutenberg 1879]MB08
    |--H. cisteloides (Newman 1838) (see below for synonymy)MB08
    |--H. concolor Carter 1915 [=H. vittata var. concolor]MB08
    |--H. curticornis Haag-Rutenberg 1878MB08
    |--H. cylindricollis (Boisduval 1835) [=Allecula cylindricollis]MB08
    |--H. debilicornis Haag-Rutenberg 1878MB08
    |--H. fusca Blackburn 1891MB08
    |--H. hirta Borchmann 1933MB08
    |--H. horni (Carter 1928) [=Hybrenia horni]MB08
    |--H. illidgei (Carter 1926) [=Ommatophorus illidgei]MB08
    |--H. interstitalis Carter 1933MB08
    |--H. laticollis (Boheman 1858) [=Allecula laticollis]MB08
    |--H. limbata Blackburn 1891MB08
    |--H. lugubris Blackburn 1891MB08
    |--H. macleayi (Borchmann 1909) [=Allecula macleayi, A. flavicornis Macleay 1887 (preoc.)]MB08
    |--H. mastersi (Macleay 1872) [=Allecula mastersi]MB08
    |--H. montium Carter 1933MB08
    |--H. ornata Carter 1915MB08
    |--H. pallida (Carter 1915) [=Hybrenia pallida]MB08
    |--H. pallipes Carter 1920MB08
    |--H. posttibialis Carter 1920MB08
    |--H. punctatus (Borchmann 1933)MB08
    |--H. regularis Macleay 1872MB08
    |--H. rotundicollis (Laporte 1840) [=Allecula rotundicollis]MB08
    |--H. rubicunda Carter 1915MB08
    |--H. rufa Blackburn 1891 [=H. rubra Carter 1915]MB08
    |--H. ruficornis Macleay 1872MB08
    |--H. rufipes (Fabricius 1775) (see below for synonymy)MB08
    |--H. rufobrunnea Carter 1933MB08
    |--H. rufulicornis Borchmann 1909 [=H. ruficornis Blackburn 1891 non Macleay 1872]MB08
    |--H. scabrosa Champion 1895MB08
    |--H. scutellaris Carter 1920MB08
    |--H. sexualis Carter 1933MB08
    |--H. silvestris Carter 1933MB08
    |--H. strongylioides (Carter 1920) [=Anaxo strongylioides]MB08
    |--H. subgeminata Macleay 1872MB08
    |--H. torpedo Carter 1922MB08
    `--H. vittata (Pascoe 1866) [=*Hybrenia vittata; incl. Hy. insularis Pascoe 1866, Homotrysis subvittata Macleay 1887]MB08

Homotrysis cisteloides (Newman 1838) [=Allecula cisteloides; incl. A. foveicollis Hope 1843, A. fuscipennis Blessig 1861, Homotrysis microderes Pascoe 1866]MB08

Homotrysis rufipes (Fabricius 1775) [=Helops rufipes; incl. Allecula angusticollis Boheman 1858, A. australis Boisduval 1835]MB08

*Type species of generic name indicated

References

[MB08] Matthews, E. G., & P. Bouchard. 2008. Tenebrionid Beetles of Australia: Descriptions of tribes, keys to genera, catalogue of species. Australian Biological Resources Study: Canberra.

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