Chlaenius (Amblygenius) atripes Chaudoir, 1876

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 : 457

Chlaenius (Amblygenius) atripes Chaudoir, 1876

( Fig. 3a )

Chlaenius (Amblygenius) atripes Chaudoir, 1876: 160 .

Material examined. PAKISTAN — Khyber Pakhtunkhwa • 1 ♂, 1 ♀; Dera Ismail Khan; 12 Sep. 1988; Dr. Muhammad Afzal leg.; Chlaenius (Amblygenius) atripes Chaudoir by Mishkat Ullah 2017 det.; PMNH .— Punjab • 1 ♀; Layyah, Chak No. 127; 05 Aug. 2010; Adnan Bodhla leg.; PMNH .

Measurements. Male (n=4): TL= 15.5 mm, HW= 2.88 mm, PL= 3.35 mm, PW= 4.21 mm, EL= 9.36 mm, EW= 2.98 mm. Ratios PL/PW= 0.79, HW/PW= 0.68 and EL/EW= 3.13.

Diagnosis. Head metallic green; neck, vertex and frons lateral sides moderately striate and punctate; labrum margins, mandibles, maxillary and labial palpi reddish brown. Antennal articles I–III and legs black whilst rest of the antenna densely pubescent and reddish brown.

Pronotum metallic green, uniformly setiferous punctate and quadrate. Pronotum slightly truncate towards base, postero-lateral angle square. Elytra base black and lateral margin with slightly metallic green luster. Elytra striate and each stria equally spaced punctate with lateral rows of punctures laterally more pubescent.

Comments. Ch. (A.) atripes closely resembles Ch. (A.) quadricolor orientalis Dejean, 1826 in shape and colouration. It differs on the basis of antennal articles and legs black in Ch. (A.) atripes where as antennal articles and legs reddish brown in latter; pronotum moderately punctate, lateral margin slightly sinuate before base in Ch. (A.) atripes where as pronotum sparsely punctate, lateral margin evenly rounded in quadricolor orientalis. This is the first record of this species from Pakistan (Dera Ismail Khan and Layyah along the River Indus), representing a range expansion out of its widely distributed area in the oriental region upto Bangladesh and Myanmar.

Distribution. Bangladesh, India, Myanmar (Anichtchenko 2017; Lorenz 2018) and Pakistan (first country record).

Figures

FIGURE 3. Dorsal habitus (a) Chlaenius (Amblygenius) atripes Chaudoir, 1876 imaged from NHMUK collection; (b) Chlaenius (Amblygenius) luculentus Andrewes, 1920 imaged from NHMUK collection; (c) Chlaenius (Amblygenius) quadricolor orientalis Dejean, 1826 imaged from NHMUK collection; (d) Chlaenius (Chlaenius) lafertei Guérin-Méneville, 1843 imaged from NHMUK collection.