Batrisocenus

Batrisocenus carinicollis, from Raffray (1904).

Belongs within: Batrisitae.

Batrisocenus is an Old World tropical genus of pselaphine beetles in which the first abdominal segment is greatly enlarged, with the remaining segments barely visible dorsally (Raffray 1904).

Characters (Raffray 1904): Body cylindrical. Head large, square, eyes located behind middle. Palps normal, article 3 very briefly triangular, 5 thicker at base, attenuated after middle, very acuminate at top. Abdomen short, obtuse or rounded at the end, first dorsal segment very large, the following ones very deflexed and barely visible above, lateral margin of abdomen formed by simple carina that is more or less short, but never as long as first segment.

<==Batrisocenus Raffray 1903R04
    |--B. abbreviatus (Reitter 1882) [=Batrisodes abbreviatus]R04
    |--B. abdominalis Raffray 1877R04
    |--B. angulatus Raffray 1893R04
    |--B. annamita Raffray 1904R04
    |--B. antennatus (Weise 1877) [=Batrisus antennatus]R04
    |--B. architectus (Reitter 1883) [=Batrisodes architectus]R04
    |--B. armaticornis Raffray 1903R04
    |--B. basalis (Schaufuss 1882) [=Batrisus basalis]R04
    |--B. batavianus (Reitter 1882) [=Batrisodes batavianus]R04
    |--B. beccarii (Schaufuss 1882) [=Batrisus beccarii]R04
    |--B. binodosus Raffray 1904R04
    |--B. bipunctulus (Reitter 1883) [=Batrisodes bipunctulus]R04
    |--B. birmanus (Schaufuss 1882) [=Batrisus birmanus]R04
    |--B. bironis Raffray 1903R04
    |--B. bisulcatus Raffray 1893R04
    |--B. brevis (Schaufuss 1882) [=Batrisus brevis]R04
    |--B. calcaratus Raffray 1904R04
    |--B. cameratus Raffray 1904R04
    |--B. capitatus Raffray 1904R04
    |--B. carinatus Raffray 1904R04
    |--B. carinicollis Raffray 1904R04
    |--B. caudatus (Raffray 1882) [=Batrisus caudatus]R04
    |--B. cavernosus Raffray 1903R04
    |--B. cavifer (Reitter 1883) [=Batrisodes cavifer; incl. Batrisocenus torticornis Raffray 1893]R04
    |--B. caviventris Raffray 1893R04
    |--B. celebensis (Schaufuss 1882) [=Batrisus celebensis]R04
    |--B. chloroticus Raffray 1903R04
    |--B. cicatricosus Raffray 1896R04
    |--B. circellaris Raffray 1894R04
    |--B. clavatus Raffray 1894R04
    |--B. claviger (Reitter 1883) [=Batrisodes claviger]R04
    |--B. clavipes Raffray 1891R04
    |--B. cultripes Raffray 1904R04
    |--B. cursitans Raffray 1894R04
    |--B. custos [=Batrisus custos]R04
    |--B. decipiens Raffray 1893R04
    |--B. deformipes Raffray 1904R04
    |--B. deformis Reitter 1882R04
    |--B. dissimilis (Sharp 1883) [=Batrisus dissimilis]R04
    |--B. elongatus Raffray 1896R04
    |--B. epistomalis Raffray 1896R04
    |--B. erectus Raffray 1896R04
    |--B. excavatus Raffray 1893R04
    |--B. excisus (Schaufuss 1877) [=Batrisus excisus]R04
    |--B. fallax (Sharp 1883) [=Batrisus fallax]R04
    |--B. falsus Raffray 1896R04
    |--B. fenestratus (Raffray 1894) [=Batrisodes fenestratus]R04
    |--B. fornicatus Raffray 1904R04
    |--B. fragilis (Sharp 1883) [=Batrisus fragilis]R04
    |--B. fundaebraccatus (Schaufuss 1882) (see below for synonymy)R04
    |--B. furcifer Raffray 1904R04
    |--B. gantongensis (Schaufuss 1882) [=Batrisus gantongensis]R04
    |--B. gestroi (Schaufuss 1882) [=Batrisus gestroi]R04
    |--B. gracilicornis Raffray 1877R04
    |--B. hamatipes Raffray 1891R04
    |--B. immundus Raffray 1904R04
    |--B. incertus Raffray 1903R04
    |--B. incisus Raffray 1896R04
    |--B. indecorus Raffray 1904R04
    |--B. induratus Raffray 1894R04
    |--B. indus (Schaufuss 1882) [=Batrisus indus]R04
    |--B. iridescens Raffray 1903R04
    |--B. irregularis Raffray 1903R04
    |--B. japonicus (Sharp 1883) [=Batrisus japonicus]R04
    |--B. laminidens (Reitter 1883) [=Batrisodes laminidens]R04
    |--B. longipes Raffray 1904R04
    |--B. major Raffray 1904R04
    |--B. margaritifer (Schaufuss 1882) [=Batrisus margaritifer]R04
    |--B. mastersi Raffray 1900R04
    |--B. mitratus Raffray 1904R04
    |--B. modestus (Sharp 1874) [=Batrisus modestus]R04
    |--B. mondherae Raffray 1896R04
    |--B. monoceros Raffray 1893R04
    |--B. morulus (Reitter 1882) [=Syrbatus morulus]R04
    |--B. mucronatus Raffray 1903R04
    |--B. natalensis Raffray 1897R04
    |--B. nodicornis Raffray 1893R04
    |--B. optatus (Sharp 1874) [=Batrisus optatus]R04
    |--B. orbicollis Reitter 1883R04
    |--B. pallidus (Raffray 1882) [=Batrisus pallidus]R04
    |--B. pedator (Sharp 1883) [=Batrisus pedator]R04
    |--B. proportionis (Schaufuss 1882) [=Batrisus proportionis]R04
    |--B. puncticollis Sharp 1883R04
    |--B. quadraticeps Raffray 1904R04
    |--B. quadratus Raffray 1896R04
    |--B. quaestus [=Batrisus quaestus; incl. Batrisocenus semisulcatus Schaufuss ex Motsch. 1851 (n. n.)]R04
    |--B. quinquesulcatus Raffray 1894R04
    |--B. reitteri Raffray 1896R04
    |--B. ritsemae [=Batrisus ritsemae, Batrisodes ritsemae]R04
    |--B. sarawackensis (Schaufuss 1882) [=Batrisus sarawackensis]R04
    |--B. sauciipes Raffray 1904R04
    |--B. saucius Raffray 1901R04
    |--B. schaufussi Raffray 1893R04
    |--B. sculpturatus [=Batrisus sculpturatus]R04
    |--B. semipunctatus Raffray 1893R04
    |--B. septemdentatus (Schaufuss 1882) [=Batrisus septemdentatus]R04
    |--B. septemfoveolatus (Schaufuss 1877) [=Batrisus septemfoveolatus]R04
    |--B. septemsulcatus Raffray 1894R04
    |--B. serraticornis Raffray 1903R04
    |--B. sharpi Schauf. 1883 [incl. Batrisus similis Sharp 1883 non Batrisocenus similis Schaufuss 1882]R04
    |--B. siamensis Raffray 1904R04
    |--B. sinensis Raffray 1904R04
    |--B. singhalensis Raffray 1901R04
    |--B. spinidens (Reitter 1883) [=Syrbatus spinidens]R04
    |--B. squamiceps Raffray 1891R04
    |--B. stigmosus Raffray 1893R04
    |--B. sulcipennis (Raffray 1877) [=Batrisus sulcipennis]R04
    |--B. sulcipes Raffray 1893R04
    |--B. tarsalis (Reitter 1883) [=Batrisodes tarsalis]R04
    |--B. tibialis (King 1865) [=Batrisus tibialis]R04
    |--B. triangulatus Raffray 1904R04
    |--B. tricuspidatus Raffray 1882R04
    |--B. trigona Raffray 1904R04
    |--B. trilobatus Raffray 1896R04
    |--B. trilunatus Raffray 1896R04
    |--B. trivialis Raffray 1903R04
    |--B. truncatus Raffray 1904R04
    |--B. tumidipes Raffray 1891R04
    |--B. tumorosus Raffray 1904R04
    |--B. validicornis Raffray 1903R04
    |--B. vestigifer (Reitter 1883) [=Batrisodes vestigifer]R04
    `--B. vulneratus Raffray 1904R04

Batrisocenus fundaebraccatus (Schaufuss 1882) [=Batrisus fundaebraccatus; incl. Batrisocenus nephriticus Schaufuss 1882, Batrisocenus physoderes Schaufuss 1882, Batrisocenus similis Schaufuss 1882]R04

*Type species of generic name indicated

References

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

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