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) Muilwijk, Jan Seiedy, Marjan Wrase, David W. Zootaxa 2021 2021-11-09 5067 1 55 81 Muilwijk & Seiedy & Wrase, 2021 Muilwijk & Seiedy & Wrase 2021 [151,357,571,598] Insecta Carabidae Atranus Animalia Coleoptera 6 61 Arthropoda species dariushi sp. nov.  ( Figs. 3.1, 3.2)   Type material.  Holotype, ♂, labelled: “ Iran, Kohgiluyehand Boyer-Ahmad/ Suq cave,  812 m/ 30°49ˊ25.9´´ N, 50° 25ˊ37.9´´ E/  16.vi.2018/ S. Rahideh& J. Muilwijkleg.” //  Atranus dariushi sp. nov./ Muilwijk, Seiedy & Wrase des. 2021“ (black print on red label).  Holotypedeposited in HMIM.  Comparing material:  Atranus ruficollis(Gautier des Cottes, 1858):  1 ♂, Iran, Alborz, Mazandaran, near Siah Bisheh, ca  2000 m,  14.vi.2017; Muilwijkleg.; CJM.   Description.Elytra and appendices yellow, head and pronotum slightly shiny yellowish red; dorsum pubescent; eyes flat; pronotum slender; elytra elongate elliptical; micropterous. ( Fig. 3.1). Body length 6.4 mm. Head temples long; eyes flat; frons lateral flat impressed, wrinkled in the middle; finely pubescent on basal part of vertex; with anterior margin weakly emarginate, clypeus with two setae; mandibles long and pointed; palpi long and slender; 2 pairs of supraorbital setae, the posterior setae far behind the eye; antennae from antennomere 2 onwards pubescent; reaching to one third of the elytra length. Pronotum slender, cordate (PW/PL 1.02), lateral sides slightly sinuated and constricted to the base; greatest width at about the anterior fourth; anterior angles protruding, posterior angles subrounded, apically slightly upwards pointed; basal fovea moderately deep and round extending along the lateral side; lateral margin with 2 pairs of setae, one pair basolateral, the other pair at the widest point; middle line from apex to base. Pubescence less dense and finer on the disc. Elytra elongate-elliptical (EL/EW: 1.55); shoulders strongly rounded, without teeth; striae at the disc coarsely punctated, finer towards the apex, striae 1–4 at the base impressed, superficially near the apex; intervals slightly convex, with 2–3 rows of hairs; scutellar striole at base with a scutellar setiferous pore; three setiferous punctures in intervals 3; series umbilicata with 14 setiferous punctures. Microsculpture head with isodiametric meshes, pronotum and elytra with dense transverse meshes. Legs rather short and stout; tarsi with dorsal dense pubescence, ventral with hairbrush; protarsomeres 1–3 dilated (male), protarsomere 4 slightly bilobed. Ventral side colour underside yellow except the yellowish-red head; mentum with median tooth, slightly emarginate in the middle; sterna with pubescence; ratio length/width at anterior margin metepisterna: 1.67. Median lobe ( Fig. 3.2) in lateral view comma-shaped, 1.44 mmlong; the large erected hook at apex spatulashaped, directed at the apical lamella at an acute angle (seen laterally, in  A. ruficollisthe hook is located at an approximate right angle on the apical lamella, Fig.3.4).  Comparative notes.  Atranus dariushi  sp. n.is compared with numerous specimens of  A. ruficollis(Gautier des Cottes, 1858)from almost the entire range ( Fig. 3.3). The new species differs from  A. ruficollisby colour, the slenderer habitus, the pronotum less sinuate before hind angles, slightly weaker shoulders, reduced hind wings, metepisterna: ratio length/width at anterior margin (1.67) shorter as in  A. ruficollis(2.11), and by the apex of the median lobe which is curved (as in  P. ruficollis, Fig. 3.4) but the apex is spatula-shaped and the hook is located at an acute angle on the apical lamella (seen laterally).  A. ruficollisis lighter or darker red-brown, often pronotum somewhat lighter, the pronotum and elytra a little shorter (PW/PL about 1.03-1.10, EL/EW 1.47-1.50, but measuring of more specimens of  A. dariushi  sp. n.in future should show the variability of these characters), pronotum as a rule somewhat more strongly sinuate before hind angles, shoulders less rounded, hind wings fully developed (distinctly longer than elytra, at the end folded twice, hence the species is capable of flight (some specimens from Greecewere collected by car-catcher).   Distribution. Iran(Kohgiluyeh and Boyer-Ahmad). Only known from the same small cave where  Trechus kouroshi  sp. n.was found.  Habitat.This species was collected about 50 mfrom the entrance.   Remarks:  Atranus dariushi  sp. n.is likely a cave-adapted beetle, lacking of functional hind wings and without pigmentation, and differs considerably in its ecology from the other species of this genus. Both  A. ruficollisand the North American species  A. pubescensDejean, 1828are epigean species from river banks, vegetal debris and floodplain forests ( Larochelle & Larivière 2003, own observations) and are capable of flight.   Etymology.The species epithet refers to Dariush, king of Persia, of the house of the Achaemenids.  Identification reference.Arndt et al.(2011). 3400158301 2018-06-16 S. Rahideh & J. Muilwijk Iran Suq cave 812 30.823862 Kohgiluyeh 1 50.427197 Boyer-Ahmad 6 61 1 1 holotype 3400158304 [648,985,781,808] HMIM Iran 6 61 1 holotype 3400158355 2017-06-14 CJM Muilwijk Iran 2000 Siah Bisheh 6 61 1 1 Alborz