Chlaenius (Chlaenius) variipes Chaudoir, 1856

Ullah, Mishkat, Naeem, Muhammad, Mahmood, Khalid & Garner, Beulah, 2022, Addition to the knowledge of Tribe Chlaeniini Brullé, 1834 (Coleoptera: Carabidae) from Pakistan, Zootaxa 5115 (4), pp. 451-486 : 460-461

Chlaenius (Chlaenius) variipes Chaudoir, 1856

( Fig. 6c )

Chlaenius variipes Chaudoir, 1856: 268 ; Chlaenius (Lissauchenius) variipes Saha, 1984: 102 ; Chlaenius (Chlaeniellus) pseudotristis Chanu & Swaminathan, 2017: 565 .

Material examined. PAKISTAN • 1 ♀; Punjab, Layyah, Chak No. 127; 05 Aug. 2010; Adnan Bodhla leg.; PMNH .

Measurements. Male (n=1): TL= 11.14 mm, HW= 2.16 mm, PL= 2.40 mm, PW= 3.20 mm, EL= 6.64 mm, EW= 2.40 mm. Ratios PL/PW= 0.75, HW/PW= 0.67 and EL/EW= 2.76. Female (n=1): TL= 13.14 mm, HW= 2.64 mm, PL= 2.65 mm, PW= 3.95 mm, EL= 7.81 mm, EW= 2.60 mm. Ratios PL/PW= 0.67, HW/PW= 0.66 and EL/EW= 3.00.

Diagnosis. Head black with metallic blue green pink-purple tinge, clypeus rough with isodiametrical pattern microsculpturing; frons, vertex and neck area densely punctate. Labrum, maxillary palps, labial palps, antennal articles I–III, all tarsi reddish brown and IV–XI dark brown; mandibles and legs black except outer side of all tibiae whitish. Pronotum black with metallic blue green pink-purple tinge; surface throughout rugose densely punctate with isodiametrical microsculpturing, basal fovea shallow and wide; basal border wider; anterolateral angles blunt, postero-lateral angles sharp obtuse; lateral bead dark brown. Elytra matt black with bluish green tinge on latral sides (intervals VIII & IX), striae deep and smooth; intervals densely setiferous punctate (golden color setae), microsculptureing distinct and isodiametrical pattern. Ventral side black, proepisternum, metepimeron and metepisetenum punctate.

Comments. This species is closely related to Chlaenius nitidulus (Schrank, 1781) . It differs on the basis of average body texture rough, pronotum lateral margin wide particularly at base, postero-lateral angles less sharp, disc area rugose and fovate-punctate (in Chlaenius nitidulus almost smooth). Elytral intervals densely covered with uniformly spaced setiferous punctures, legs rusty except outer side of all tibiae whitish (while Chlaenius nitidulus the thighs blackened). In this current study, itis reported from Layyah (Punjab) in Pakistan.

Distribution. India and Pakistan (Anichtchenko 2017; Kirschenhofer 2017; Lorenz 2018).

Figures

FIGURE 6. Dorsal habitus (a) Chlaenius (Epomis) nigricans Wiedemann, 1821; (b) Chlaenius (Lissauchenius) rufifemoratus rayotus Bates, 1891 imaged from NHMUK collection; (c) Chlaenius (Lissauchenius) variipes Chaudoir, 1856 imaged from NHMUK collection; (d) Chlaenius (Lithochlaenius) agilis Chaudoir, 1856.