Genus Mochtherus Schmidt-Goebel, 1846

Mochtherus Schmidt-Goebel, 1846: 76; Lacordaire 1854: 137; Bates 1869: 71; Chaudoir 1869: 240; Jakobson 1907:394; Csiki 1932:1382; Andrewes 1939: 185; Jedlička 1935: 18; Jedlička 1963: 361; Habu 1967: 100; Habu 1982: 86; Darlington 1968: 122; Lorenz 2005: 460.

Cyrtopterus Motschulsky, 1861: 106.

Type species.

Mochtherus angulatus Schmidt-Goebel (= Dolichoctis tetraspilotus (MacLeay); designated by Andrewes 1939.

Type locality.

Burma (Myanmar).

Recognition of Taiwanese species of Mochtherus

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Color. Various.

Fixed setae. Two pairs of supraorbital setae; clypeus with two lateral setae; labrum with six setae along apical margin; one pair of suborbital setae; pronotum with two setae along each margin, one at base of lateral margin and one on lateral margin at pronotum max width; 15 to 16 lateral (umbilical) setae in interval 9; two setae on each of abdominal sterna III to VI; two setae along apical margin of sternum VII in males, females with four setae near apical margin of sternum VII.

Elytra. Striae moderately impressed; elytral apices truncate.

Hind wings. Macropterous.

Legs. Males with adhesive vestiture ventrally, two rows of squamo-setae on tarsomeres 1-3 of fore-leg.

Male genitalia. Ostium left pleuropic. Phallus cylindrical.

Female genitalia. Gonocoxite 2 (gc2) wide at base, narrowing and curving outwards along length; one dorsal ensiform seta (des). Sensory furrow, furrow pegs and associated nematiform setae not observed.

Taxonomic notes.

Habu (1967, 1982) considered Mochtherus a subgenus of Dolichoctis . Based on the differences in mentum and female genitalic characters, Mochtherus is regarded as a valid genus.