Leistus (Pogonophorus) spinibarbis zagrosensis, Muilwijk & Seiedy & Wrase, 2021

Muilwijk, Jan, Seiedy, Marjan & Wrase, David W., 2021, Contribution to the knowledge of Carabidae in Iran with the descriptions of five new taxa, proposing of four synonyms and providing of nine new records (Insecta: Coleoptera), Zootaxa 5067 (1), pp. 55-81 : 57-59

Leistus (Pogonophorus) spinibarbis zagrosensis ssp. n.

urn:lsid:zoobank.org:act:AEF2F2E3-B739-4A34-8D34-36C96041C008

( Fig. 1.1, 1.2 )

Type material. Holotype ♂, labelled: “ Iran, Chahar Mahaal and Bakhtiari / Chery pass, 31.v.2019, 3260 m / Muilwijk leg. / 32°10ˊ51´´ N, 50°09ˊ59´´ E ” // “ Holotype / Leistus (Pogonophorus) spinibarbis / zagrosensis ssp. n. / Muilwijk, Seiedy & Wrase des. 2021” (black print on red label). Deposited in HMIM.

Description. Upper surface of head and pronotum dark with bright blue-violet lustre, elytra more brownish with blue lustre; lateral margins of pronotum translucent reddish; propleura yellow, epipleura brown, appendages entirely yellow, underside dark except brownish apical sternites ( Fig. 1.1 ). BL: 8.4 mm, EW: 3.3 mm.

1.1 habitus holotype, scale: 5 mm.

1.2 median lobe holotype, lateral view, scale: 1 mm.

Head punctate, longitudinally superficial rugulose; eyes hemispherical; antennae long and slender.

Pronotum transverse (PW/PL:1.37); punctuation on the base, lateral margins and near the apex strong, punctation on the disc rather fine; lateral furrow broad, sides narrowed to the rectangular basal angles. Middle line fine and only visible on disc.

Elytra subparallel (EL/EW:1.7); weakly rounded laterally, their maximum width apical of middle; basal margin concave, humeral denticle small and sharp; striae rather deep, superficial apically, evidently punctate, intervals moderately convex, flattened near the apex with fine punctuation.

Ventral side with dense and rather strong punctuation on prosternum, pro-, mes- and metepisterna, mesosternum, lateral sides of metasternum, lateral sides of abdominal sternites 1 and 2, lateral sides of sternite 3 with finer punctation, middle of sternite 3 and sternites 4–7 with fine scarce punctation; prosternal lobe pointed and not bordered at the tip with brown colour.

Microsculpture superficially, isodiametric on head, and pronotal disk; elytra with less superficially, isodiametric meshes.

Median lobe ( Fig. 1.2 ) with a regularly concave apex.

Comparative notes. L. (P.) spinibarbis zagrosensis ssp. n. differs from the other subspecies, Leistus (P.) spinibarbis rufipes Chaudoir 1843, L. (P.) spinibarbis ponticus Kryzhanovskij & Shilenkov, 1999 and L. (P.) spinibarbis abdominalis Reiche & Saulcy, 1855, in the Middle East by the concave apex of the median lobe, which is clearly asymmetrical in the other subspecies. In addition, L. (P.) spinibarbis rufipes differs from L. (P.) spinibarbis zagrosensis ssp. n. by shorter antennae; antennomere 3 shorter and thicker; more transverse pronotum; elytral sides more rounded; prosternal lobe apically rounded and completely bordered and black coloured. L. (P.) spinibarbis ponticus differs from L. (P.) spinibarbis zagrosensis ssp. n. by more coarsely and densely punctation of head, head and pronotum brownish black, elytra less parallel, widest point in the middle. L. (P.) spinibarbis abdominalis differs from L. (P.) spinibarbis zagrosensis ssp. n. by blue-green elytra, elytral striae more finely and densely punctured, the intervals completely flat and ventral side completely brown-red.

Distribution. Iran (Chaharmahal and Bakhtiari). So far only known from collecting place.

Habitat. The specimen was collected under a stone at high altitude, near a small snow field.

Etymology. The name of the subspecies refers to the Zagros Mountains, where the specimen was collected.

Figures

FIGURE 1. Leistus spinibarbis zagrosensis ssp. n.