Chlaenius (Chlaeniostenus) nitidicollis Dejean, 1826

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 : 465-466

Chlaenius (Chlaeniostenus) nitidicollis Dejean, 1826

( Fig. 5b )

Chlaenius nitidicollis Dejean, 1826: 314 .

Material examined. PAKISTAN • 1 ♀; Islamabad, Qauid-e-Azam University, Rumli ; 21 Mar. 2015; Mishkat leg.; Chlaenius (Chlaeniostenus) nitidicollis det. by MishkatUllah 2017; PMNH • 1 ♂, 1 ♀; Islamabad, NARC ; 28 Apr. 2014; Mishkat leg.; pitfall traps; PMNH • 1 ♀; Islamabad, PMNH ; 29 Apr. 2014; Mishkat leg.; pitfall traps; PMNH • 2 ♂, 2 ♀; Punjab, Chakwal, Dhok Tahlian Dam ; Mishkat leg.; Chlaenius (Chlaeniostenus) nitidicollis det. by Mishkat Ullah 2017; PMNH • 1♀; Azad Jammu & Kashmir, Rawalakot ; Afshan leg.; Chlaenius (Chlaeniostenus) nitidicollis det. by MishkatUllah 2017; NIM • 2 ♀; Khyber Pakhtunkhwa ( North West India ); NHMUK (B.M. 1884-17).

Measurements. Male (n=10): TL= 12.44 mm, HW= 2.34 mm, PL= 2.62 mm, PW= 3.00 mm, EL= 7.29 mm, EW= 2.20 mm. Ratios PL/PW= 0.87, HW/PW= 0.78 and EL/EW= 3.31. Female (n=10): TL= 12.41 mm, HW= 2.29 mm, PL= 2.65 mm, PW= 2.96 mm, EL= 7.31 mm, EW= 2.25 mm. Ratios PL/PW= 0.89, HW/PW= 0.77 and EL/EW= 3.24.

Diagnosis. This species slightly resembles Chlaenius (Chlaeniostenus) circumdatus circumdatus except marginally smaller in body size, elytral border yellowish brown, broad from humeral angle to VII stria midpoint, then shrinking abruptly occuping only interval IX upto apex and expanding slightly at apex without serrations.

Comments. In this current study, this species was recorded from Islamabad, Chakwal and Rawalakot (Azad Jammu & Kashmir).

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

Figures

FIGURE 5. Dorsal habitus (a) Chlaenius (Chlaeniostenus) circumdatus circumdatus Brullé, 1835; (b) Chlaenius (Chlaeniostenus) nitidicollis Dejean, 1826; (c) Chlaenius (Chlaeniostenus) pulcher Nietner, 1857; (d) Chlaenius (Epomis) duvaucelii (Dejean, 1831).