Chlaenius (Amblygenius) luculentus Andrewes, 1920

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 : 457-458

Chlaenius (Amblygenius) luculentus Andrewes, 1920

( Fig. 3b )

Chlaenius (Amblygenius) luculentus Andrewes, 1920: 236 .

Material examined. Holotype PAKISTAN • ♂; “ N.W. India ” [Khyber Pakhtunkhwa] ; Holotype with red ringed circular type label, Chlaenius luculentus Andrewes 1920 det. (designated Holotype); NHMUK (B.M. 1884-19) .

Measurements. Male (n=4): TL= 13.56 mm, HW= 2.67 mm, PL= 2.88 mm, PW= 3.96 mm, EL= 8.28 mm, EW= 2.76 mm. Ratios PL/PW= 0.72, HW/PW= 0.67 and EL/EW= 3.00.

No females were studied / available for study.

Diagnosis. Head black with coppery and green luster toward sides; neck, vertex and frons lateral sides striate punctate. Mandibles dark brown. Antennal articles I–III, femora, pro-tibiae and meta-trochanters flavous (brownish yellow); tarsus, palpi, and labrum reddish brown. Pronotum, moderately setiferous punctate; base and disc area dark purplish-green, merging at sides into coppery, beyond which form a bright green stripe, anterior half of lateral margin channel blue. Elytra violet-blue, disc black, humerus and elytra lateral margin (to some extent) green.

Comments. Ch. (A.) luculentus closely resembles Ch. (P.) chlorodius Dejean, 1826 in body shape and colouration. It differs on the basis on colouration of antennal article I–III reddish brown and IV–XI blackish where as antennal articles I–IX reddish brown in chlorodius ; pronotum densely punctate with tranverse wrinkles where as pronotum sparsely punctate without tanseverse wrinkles in chlorodius . Pronotum lateral margin slightly sinuated near base and postero-lateral angles sharp, protruding outward where as pronotum lateral margin not sinuate before base and postero-lateral angles rounded in chlorodius . Elytra basal margin and stria VIII impunctate where as elytra basal margin and stria VIII densely punctate in chlorodius . The type locality of Chlaenius luculentus is Khyber Paktunkhwa although its exact locality is wanting. This is the first record of this species from Pakistan.

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

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.