Diglotta Champion 1899

Klimaszewski, Jan, Webster, Reginald, Assing, Volker & Savard, Karine, 2008, Diglotta mersa (Haliday) and Halobrecta flavipes Thomson, two new species for the Canadian fauna (Coleoptera, Staphylinidae, Aleocharinae), ZooKeys 2 (2), pp. 175-188 : 178

Genus Diglotta Champion 1899

Diglotta Champion, 1899: 264 . Type species Diglossa mersa Haliday, 1837 .

Diagnosis

Integument with slightly granulate microsculpture, pubescent, pubescence short and of distinct pattern on pronotum with microsetae forming arcuate lines emerging from midline of the disc outwards ( Fig. 1 ). Body with large, broadly rounded head and protruding mouthparts forming conically-shaped apical projection, head as large as or larger than pronotum ( Fig. 1 ); infraorbital carinae absent; labrum broadly emarginate medially; mandibles slender with rounded blunt apices, prostheca well developed; lacinia and galea of equal length; maxillary palpus with four articles, first and last reduced in size; mentum trapezoidal in shape, anterior margin strongly concave; pronotum strongly narrowed basally ( Fig. 1 ); elytra shorter than pronotum ( Fig. 1 ); hind wings usually reduced to short stubs, but micropterous and macropterous forms within the same species are reported ( Good 1998); abdomen broadly oval in dorsal outline and widening posteriorly ( Fig. 1 ). Found in the intertidal zone of beaches ( Moore and Orth 1979; Good 1998; Haghebaert 1991; Pace 1989, Ashe 2001).

Figures

Fig. 1. Diglotta mersa (Haliday) in dorsal view. Scale bar = 1 mm.