Chlaenius (Chlaeniellus) velocipes 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 : 463

Chlaenius (Chlaeniellus) velocipes Chaudoir, 1876

( Fig. 4d )

Chlaenius velocipes Chaudoir, 1876: 266 ; Chlaenius descarpentriesi Morvan, 1975: 49 ; Chlaenius loebli Saha & Sengupta, 1979: 422 .

Material examined. PAKISTAN • 1 ♀; Islamabad , Rumli, Qauid-e-Azam University; 21 Mar. 2015; Mishkat; PMNH • 2 ♂, 2 ♀; Islamabad , Faisal Mosque, trail No. 6; 18. Apr. 2015; Mishkat Ullah; PMNH • 3 ♂, 4 ♀; Islamabad, F-9 Park Stream ; 16 Nov. 2014; Mishkat; PMNH • 2 ♀; Islamabad, PMNH (Pirfall traps) ; 14 Apr. 2014; Mishkat; PMNH • 1 ♀; Islamabad, PMNH (Pirfall traps) ; 15 Apr. 2014; Mishkat; PMNH • 1 ♂, 1 ♀; Rawalpindi , Ayub Park; 20 Mar. 2015; Mishkat; PMNH • 1 ♂; Islamabad, vacinity of PMNH ; 25 Apr. 2014; Mishkat; PMNH • 1 ♂, 1 ♀; Islamabad, vacinity of PMNH , 29 Apr. 2014; Mishkat; PMNH • 1 ♂ & 3 ♀; Islamabad, vacinity of PMNH ; 02 Feb. 2015; Mishkat; PMNH • 1 ♂ & 3 ♀; Islamabad, vacinity of PMNH ; 03 Apr. 2014; Mishkat; PMNH • 5 ♂, 1 ♀; Islamabad, Shakarparian, PMNH ; 28 Oct. 2014; Mishkat; PMNH .

Measurements. Male (n=10): TL= 10.59 mm, HW= 2.08 mm, PL= 2.19 mm, PW= 2.90 mm, EL= 6.57 mm, EW= 2.14 mm. Ratios PL/PW= 0.75, HW/PW= 0.71 and EL/EW= 3.06. Female (n=10): TL= 10.91 mm, HW= 2.12 mm, PL= 2.25 mm, PW= 2.97 mm, EL= 6.63 mm, EW= 2.12 mm. Ratios PL/PW= 0.78, HW/PW= 0.71 and EL/EW= 3.11.

Diagnosis. Head metallic blue green smooth with minute punctures. Labrum slightly emarginate at apex. Antennal article III shorter than the entire length of article Iand II. Mandibles, maxillary palpi labial palpi, labrum and antennal segments IV–IX reddish brown. Antennal articles I–III, pronotum lateral bead, elytra lateral bead and all legs yellowish brown. Pronotum metallic blue green, lateral margin yellowish brown, postero-lateral angles at apex slightly rounded, dorsum smoother and less punctuated on both sides of median impression, basal region with glabrous setiferous punctures and a row on either side of median impression. Elytra black, lateral margin yellowish brown, striae with uniformly spaced punctures, intervals with setiferous punctures, microsculpture isodiametrical.

Comments. C. (Chlaeniellus) velocipes closely resembles C. (Chlaeniellus) tenuilimbatus . It differs on the basis of prontum lateral margin yellowish brown, elytral lateral margin yellowish brown; pronotum maximum width at mid-point; pronotum sides less sinuous near postero-lateral angles; pronotum uniformly setiferous punctate. Where as, C. (C.) tenuilimbatus differs on the basis of prontum lateral margin black, elytral lateral margin dark brown to black; pronotum maximum width before mid-point; pronotum sides more sinuous near posterior angle; pronotal disc to apical margin sparse setiferous punctate. This is the first time, this species is recorded from Pakistan. It was collected from the suburbs of Islamabad. It is also widely distributed in the south Asian region.

Distribution. Bangladesh, India (Uttarakhand), Sri Lanka, Nepal (Anichtchenko 2017; Lorenz 2018) and Pakistan (first country record).

Figures

FIGURE 4. Dorsal habitus (a) Chlaenius (Chlaenius) scapularis Chaudoir, 1876 imaged from NHMUK collection; (b) Chlaenius (Chlaeniellus) laeviplaga frater Chaudoir, 1876; (c) Chlaenius (Chlaeniellus) tenuilimbatus Ballion, 1871 imaged from NHM collection; (d) Chlaenius (Chlaeniellus) velocipes Chaudoir, 1876 imaged from NHMUK collection.