Batraxis

Belongs within: Pselaphinae.

Batraxis is a primarily Indo-Australian genus of relatively long-bodied pselaphine beetles (Raffray 1904).

Characters (Raffray 1904): Body shape more or less elongated. Palps relatively small, article 3 globose, 4 fusiform, acuminate, terminal appendage small, not very distinct, always much shorter than half of last article. Elytra lacking supra-epipleural groove. Abdomen with first tergite much larger than all others combined, lateral keel on first tergite barely reaching half, two median longitudinal keels at its base. Abdomen large, more or less elongated, first dorsal segment much larger than all the others combined.

<==Batraxis Reitter 1881NG05 [incl. Batrisomorpha Raffray 1882R04]
    |--B. armitagei (King 1864) [=Bryaxis armitagei]R04
    |--B. brevicollis Raffray 1893R04
    |--B. brevis Raffray 1895NG05
    |--B. calcarata Raffray 1895R04
    |--B. carinulata Schaufuss 1882R04
    |--B. clavata Raffray 1882R04
    |--B. convergens Raffray 1901R04
    |--B. curvispina Raffray 1892NG05
    |--B. doriaeR04
    |--B. elegans Raffray 1895NG05
    |--B. foveata Raffray 1895NG05
    |--B. gracilicornis Raffray 1895NG05
    |--B. hampei Reitter 1881R04
    |--B. hirtella Raffray 1903R04
    |--B. indica Raffray 1904R04
    |--B. infirma Raffray 1896R04
    |--B. instabilis Raffray 1895NG05
    |--B. laevigata Raffray 1901R04
    |--B. latipes Raffray 1903R04
    |--B. lucida (Raffray 1882) [=Bryaxis lucida]R04
    |--B. megacephala Raffray 1903R04
    |--B. militaris Raffray 1896R04
    |--B. nauta Raffray 1896R04
    |--B. nitidissima (Raffray 1882) [=Bryaxis nitidissima]R04
    |--B. obesa Raffray 1904R04
    |--B. obliqua Raffray 1895NG05
    |--B. parallela Raffray 1895R04
    |--B. parvispina Raffray 1904R04
    |--B. pilosella Raffray 1882R04
    |--B. pumilio Raffray 1895NG05
    |--B. quadrata Raffray 1895NG05
    |--B. sinensis Raffr. 1896R04
    |--B. singhalensis Raffray 1895R04
    |--B. truncaticornis Raffray 1895NG05
    |--B. tumorosa Raffray 1904R04
    `--B. variabilis Raffray 1890NG05

*Type species of generic name indicated

References

[NG05] Nomura, S., & I. Abd Ghani. 2005. Faunistic notes on the pselaphine species of the supertribes Goniaceritae, Pselaphitae and Clavigeritae from Malaysia and Singapore (Coleoptera: Staphylinidae: Pselaphinae). Serangga 10 (1–2): 1–36.

[R04] Raffray, A. 1904. Genera et catalogue des psélaphides [part II]. Annales de la Société Entomologique de France 73: 1–400.