Cephennium Muller and Kunze
Creators: name: Hopp, Katie
name: Caterino, Michael
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Cephennium

description: Key to the species of California <i>Cephennium</i> Müller and Kunze 1 Eyes present, reduced (Fig. 4A, C-D)......................................................... <b>2</b> – Eyes absent................................................................................................. <b>4</b> 2(1) Mesosternal process straight, not divergent at apex (Fig. 2B); frons of males with medial ridge (Fig. 4B).............. <b> <i>C. celsifrons</i> Hopp &amp; Caterino, sp. n.</b> <i>–</i> Mesosternal process divergent at apex (Fig. 2A, D-H); frons of males flat, without medial ridge.................................................................................. <b>3</b> 3(2’) Single ommatidium present on each side of head (Fig. 4D); humeral angle of elytron apically pointed (Fig. 3H); body elongate, slender....................................................................................... <b> <i>C. aridum</i> Hopp &amp; Caterino, sp. n.</b> – Four ommatidia present on each side of head (Fig. 4C); humeral angle of elytron apically rounded (Fig. 3C); body robust................................................................................................. <b> <i>C. mariposae</i> Hopp &amp; Caterino, sp. n.</b> 4(1’) Humeral angle of elytron apically pointed (Fig. 3A, G-H)......................... <b>5</b> – Humeral angle of elytron apically rounded (Fig. 3 B-F).............................. <b>6</b> 5(4) Basal elytral sutural ridge present (Fig. 1G); apex of mesosternal keel crescent-shaped (Fig. 2G)...................... <b> <i>C. urbanum</i> Hopp &amp; Caterino, sp. n.</b> – Basal elytral sutural ridge absent; apex of mesosternal keel triangulate (Fig. 2A)................................................................ <b> <i>C. anophthalmicum</i> Brendel</b> 6(2’) Scutellum with two setae (Fig. 3D, F)........................................................ <b>7</b> – Scutellum with four setae (Fig. 3E)...... <b> <i>C. canestroi</i> Hopp &amp; Caterino, sp. n.</b> 7(6) Body robust; moderately large, 0.988 –1.121 mm in length; mesosternal keel strongly divergent at apex, apex 2.4× as wide as widest point anteriorly (Fig. 2D); scutellar setae long, extending past posterior margin of scutellum (Fig. 3D)........................................ <b> <i>C. grandarboreum</i> Hopp &amp; Caterino, n.sp.</b> – Body elongate, slender; very small, 0.646 mm in length; mesosternal keel weakly divergent at apex, apex 2× as wide as widest point anteriorly (Fig. 2F); scutellar setae short, not extending past posterior margin of scutellum (Fig. 3F)....................................................... <b> <i>C. gilberti</i> Hopp &amp; Caterino, n.sp.</b>
description: Published as part of <i>Hopp, Katie &amp; Caterino, Michael, 2009, Seven new species of Cephennium Müller &amp; Kunze (Coleoptera, Staphylinidae, Scydmaeninae, Cephenniini) from California with a key to native North American species, pp. 31-54 in ZooKeys 24 (24)</i> on page 51, DOI: 10.3897/zookeys.24.247, http://zenodo.org/record/576549