Chlaenius (Chlaenius) scapularis 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 : 461

Chlaenius (Chlaenius) scapularis Chaudoir, 1876

( Fig. 4a )

Chlaenius scapularis Chaudoir, 1876: 98 .

Material examined. PAKISTAN • 1 ♂; “ N.W. India ” [Khyber Pakhtunkhwa]; Chlaenius scapularis Chaudoir by H.E. Andrewes det.; NHMUK 1884-19 .

Measurements. Male (n=10): TL= 13.03 mm, HW= 2.55 mm, PL= 2.67 mm, PW= 3.69 mm, EL= 8.66 mm, EW= 2.84 mm. Ratios PL/PW= 0.72, HW/PW= 0.69 and EL/EW= 3.04.

No females were studied / available for study.

Diagnosis. Head metallic green, neck and vertex moderately setiferous punctate. Mandibles, labrum, maxillary and labial palpi, all antennal articles, all coxae, trochanter, femur and tarsus reddish brown; all tibia, elytra lateral border and elytral marks flavous/yellowish brown. Pronotum black with metallic coppery to greenish luster; surface smooth with setiferous punctures dense near base and moderate near apical margin. Apical margin convex basal margin slightly concave, lateral margin rounded except latero-basal angle slightly obtuse. Elytra black, humeral edges dilated to a rounded mark, median transverse band narrowed near the border expands on the disc as slightly round mark, the anterior apical mark round and spread over intervals III–V, elytra lateral border yellowish brown, striae strongly punctate; interval flat, densely covered with setiferous punctures, microsculpturing transversely meshed. Venter punctuated same as above.

Comments. This species slightly resembles C. (C.) lafertei in body shape. In C. (C.) scapularis , elytra humeral edges dilated to a rounded mark, median transverse band narrowed near the lateral border expanding on the disc as slightly round mark, the pre-apical mark round and occupies intervals III–V, elytra lateral border entirely yellowish brown. While in C. (C.) lafertei , elytrawith three marks, median mark from interval IV–VIII with uneven/serrated margin; second mark minute on interval III, third mark oblique shaped on apical margin. This species is well distributed within the area between Pakistan and Sri Lanka. NHMUK collection label gives its distribution from the province of Khyber Pakhtunkhwa although the exact location is not known.

Distribution. India, Sri Lanka (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.