Orthrius Gorham, 1876

Roland, Gerstmeier & Jonas, Eberle, 2011, Definition and Revision of the Orthrius-group of genera (Coleoptera, Cleridae, Clerinae), ZooKeys 92, pp. 35-60 : 43-45

Orthrius Gorham, 1876 Figs 1-4, 6, 8-9182635445465

Dedana Fairmaire, 1888, syn. n.; Fairmaire 1888: 26; Schenkling 1903: 4, 23.

Type species:

Orthrius cylindricus Gorham, 1876. Gorham 1876: 74.

Distribution:

Indo-Australian region.

Material examined:

Orthrius cylindricus (Type), NSW; Orthrius Gorh., cylindricus G., Type; Museum Paris, Coll. Gorham, 1914 (MNHN); and several other specimens of this genus. Dedana rufodorsata Fairmaire, 1888 (Type), Fokien; Dedana rufodorsata Fairm.; ExMusaeo Arm. David, 1900 (MNHN).

Description

Head: Eyes strongly protruding, only slightly emarginate at antennal insertion; interocular space more than one eye width; gular sutures converging, gular process broad; antennae long, A2 shorter than A3, A2-A8 filiform, A10 broadest, A11 sub-ovate, apical half pinched, terminal three antennomeres forming a more or less conspicuous club.

Thorax: Proepimeron short to medium-sized, not acute; anterior mesosternal process absent; metendosternite with normal furcal stalk length, furcal arms normal, stalk base very slightly emarginate (Fig. 18). Elytra long, subparallel, sometimes dilated apically (broadest behind middle), apices rounded, elytral punctation not arranged into striae.

Legs: Long, especially profemora intermediately to strongly thickened; tarsal pulvillar formula 4-4-3, tibial spur formula 0-1-1; tibiae with longitudinal carinae; claws simple.

Abdomen: Apical margin of male ventrite 6 straight or slightly emarginate (Fig. 54); tegmen relatively broad, parameres expanded laterally, tapering to a curved acumination distally, phallobasic struts not fused, phallobasic apodeme dilated distally (Fig. 44).