Indoquedius Blackwelder, 1952

Zhao, Zony-Yi & Zhou, Hong-Zhang, 2010, Taxonomy of the genus Indoquedius Blackwelder (Coleoptera: Staphylinidae: Staphylininae) of China with description of four new species, Zootaxa 2619, pp. 27-38 : 28

Genus Indoquedius Blackwelder, 1952

Cameron, 1932: 281, 300 (subgenus of Quedius ); Blackwelder, 1952: 199 (designation of the type species); Smetana, 1988: 300; Smetana, 1995: 112; Smetana, 2004: 656; Herman, 2001a: 9; Herman, 2001b: 3079; Hayashi, 2009: 147. Type species: Quedius oculatus Fauvel , fixed by original designation in Blackwelder (1952).

The genus Indoquedius can be easily recognized by the following characters: Head: dorsal surface of head (and pronotum) very smooth and glossy, lacking microsculpture, two or three setiferous punctures between anterior and posterior frontal setiferous punctures along medial side of eye; labial palpomere II bearing numerous long setae on medial side forming a setal brush ( Fig. 1A ), last maxillary and labial palpomeres sparsely setose; antennomeres I–III only bearing sparse large setae, lacking dense pubescence, all antennomeres obviously longer than wide ( Fig. 1B ). Thorax: pronotum usually with two, rarely three, setiferous punctures in each dorsal row, one setiferous puncture and sometimes another less obvious and smaller puncture in each sublateral row; prothorax with additional posterior ventral plate, which divided into two pieces by median longitudinal suture ( Fig. 1C ), or entire with anterior median longitudinal ridge ( Fig. 1 D). Legs: protarsomeres I–IV strongly dilated, with ventral surface covered with dense adhesive setae.

The genus Indoquedius is distributed in the Oriental and the Eastern Palaearctic regions ( Fig. 2 ). In China, six species (numbers 2, 8, 13, 19, 20 and 21) are present in the southwestern area of the country near the Himalayan region, and four (numbers 3, 5, 8 and 17) in the Island of Taiwan (of them three species are endemic). No species of this genus are known from a large territory of North-Eastern and Southern China. Only one species (number 22), described here, occurs in South-Eastern China.

Figures

FIGURE 2. Distribution of the genus Indoquedius Blackwelder: 1, Indoquedius aberrans Cameron; 2, I. baliyo Smetana; 3, I. bing Smetana; 4, I. bipunctatus Eppelsheim; 5, I. chuen Smetana; 6, I. daai Smetana; 7, I. filicornis Eppelsheim; 8, I. formosae Cameron; 9, I. grandiceps Kraatz; 10, I. hisamatsui Hayashi; 11, I. juno Sharp; 12, I. lasti Rougement; 13, I. liuae Zheng et Wang; 14, I. oculatus Fauvel; 15, I. praeditus Sharp; 16, I. saathi Smetana; 17, I. shibatai Smetana; 18, I. sikkimensis Cameron; 19, I. aculeus sp. nov.; 20, I. bicornutus sp. nov.; 21, I. nonparallelus sp. nov.; 22, I. radius sp. nov..

FIGURE 1. A – C, Indoquedius baliyo Smetana: A, labial palpus; B, antenna; C, posterior ventral plate; D, Indoquedius nonparallelus sp. nov.: posterior ventral plate. Scales = 0.5 mm.