Pristomachaerus littoralis ( Motschulsky, 1859 ) Ullah & Naeem & Mahmood & Garner, 2022

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 : 456-457

Pristomachaerus littoralis ( Motschulsky, 1859) comb. nov.

( Fig. 2b )

Callistus littoralis littoralis ( Motschulsky, 1859: 33) ; Callistus westwoodi —Schaum, 1863: 85; Callistomimus westwoodi — Chaudoir, 1872: 383; Callistomimus littoralis littoralis Chaudoir, 1872: 383 . syn. nov.

Material examined. PAKISTAN • 2 specimens (1 ♂); Islamabad, vicinity of PMNH ; 29 Jun. 2014; Mishkat leg.; PMNH • Islamabad , NARC ; 28 Apr. 2014; Mishkat leg.; pitfall traps; PMNH • 1 ♀; Punjab, Jehlum, Domaili Railway Station ; 01 Jun. 2014; Mishkat leg.; PMNH • 1 ♀; Punjab, Attock, Humak ; 29 May 2014; Mishkat leg.; PMNH • 1 ♀; Islamabad, Margalla Town , 25 Apr. 2015; Mishkat leg.; PMNH .

Measurements. Male (n=10): TL= 3.92 mm, HW= 1.00 mm, PL= 0.84 mm, PW= 1.04 mm, EL= 2.48 mm, EW= 0.84 mm. Ratios PL/PW= 0.80, HW/PW= 0.96 and EL/EW= 2.95. Female (n=10): TL= 4.98 mm, HW= 1.20 mm, PL= 0.98 mm, PW= 1.28 mm, EL= 2.99 mm, EW= 1.07 mm. Ratios PL/PW= 0.76, HW/PW= 0.93 and EL/EW= 2.79.

Diagnosis. Head black with metallic violet greenish tinge, clypeus smooth, frons smooth and punctate near eyes, vertex densely punctate. Mandibles, palpi and antennal articles III–IX, femora apex, tibiae base and apex dark brown; labrum, pronotum mostly brick red, apical border dark and basal border yellowish brown, bulb shaped, surface densely covered with wide deep punctures. Elytra black with metallic violet green tinge, sutural mark brick red, basal mark transverse from interval Vto IX yellowish white; oblique mark from interval V–VIII yellowish white; apex with small rounded yellowish white mark, striae punctuate, intervals slightly convex, densely punctate, microsculpture isodiametrical. Venter black.

Comments. Lorenz (2018) placed this species in genus Callistomimus Chaudoir, 1872 . Here proposed new placement in the genus Pristomachaerus Bates 1873 based on the following characters: pronotal basal margin sinosidal and postero-lateral angles with a cut-out on both sides. This species is newly recorded from Pakistan.

Distribution. India ( Lorenz 2018) and Pakistan (new country record).

Figures

FIGURE 2. Dorsal habitus (a) Pristomachaerus coarctatus (LaFerté-Sénectère, 1851) imaged from NHMUK Collection; (b) Pristomachaerus littoralis littoralis (Motschulsky, 1859) comb. nov. imaged from NHMUK collection.