Poecilus (Derus) jarkendis ( Jedlička, 1965 ) Jedlicka, 1965

Guéorguiev, Borislav, 2013, Taxonomic, nomenclatural, and faunistic records for species in tribes Melaenini, Moriomorphini, Pterostichini, Licinini, and Sphodrini (Coleoptera: Carabidae), Zootaxa 3709 (1) : -

Poecilus (Derus) jarkendis ( Jedlička, 1965) , new combination

Pterostichus (Melanius) jarkendis Jedlička, 1965: 205 (type locality: “ Chin. Turkestan: Jarkend”) Habitus: Fig. 7 ; male genitalia: Fig. 8 .

Type material. Pterostichus (Melanius) jarkendis Jedlička , holotype ♂, “Jarkend Raquette” [black print on white label] / “ Holotypus ” [black print on orange-red label] / “ Pterostichus jarkendi sp.n. det. Ing. Jedlička” [black mixed handwritten & print on pink label] / “6 88” [black print & blue handwritten on red label] / “4922 E91 +” [black print on light blue label] / “Riksmuseum Stockholm” [black print on green label] / “ jarkendi Jedl. ” [black print on white label] / “NHRS-COLE 000008532” [black print on white label] [ Fig. 7 ] ( NHRS).

Remarks. Jedlička (1965) stated this taxon resembles P. (Melanius) anthracinus biimpressus (Küster) . Based on a study of the original description and various species of subgenus Pseudomaseus Chaudoir, Solodovnikov (2001) concluded that P. jarkendi could be most closely related to or may be a subspecies, or even a synonym of P. anthracinus s.l. (Illiger). Recently, Bousquet (2003: 511) treated this species as Pterostichus (Pseudomaseus) jarkendis Jedlička, 1965 , and gave for it the area of distribution Kazakhstan. But, according to the original description, P. jarkendis was described from “ Chin. Turkestan: Jarkend”, i.e. from a southwestern region of the Xinjiang, Uyghur Autonomous Region of China. Data on the locality label of the holotype indicate the same site ( Fig. 9). The original description well fits with the examined specimen.

Total length of holotype is 12.5 mm, not 11 mm as stated Jedlička, since head and pronotum bend downward along longer axis of body. Dorsal surface of head densely punctured, less in front and middle, more in sides and in rear. Basal segments of antennae not carinate medially. Labial pits of mentum distinct. Lateral setae of submentum absent. Pronotum with sides slightly concave at posterior quarter. Interval 3 with two minute setiferous punctures on left elytron; same interval of right elytron with single setiferous puncture at posterior third. Hind wings well developed, as long as 5/6 of elytral length. Metepisternae quite longer than wide, with shallow sulci parallel to internal margins. Abdomen slightly punctured in middle; abdominal sternites V–VII (visible ones IV–VI) without transverse basal sulci. Onychium without setae ventrally; metatarsal carina developed on first 2 tarsomeres. Median lobe of aedeagus widened apically, ostium deflected to right; basal part of left paramere not forming transverse apophysis; right paramere with round basal part and elongate apical one ( Fig. 8 ).

The states of several features: 1/ antennomeres 1–3 nor carinate; 2/ lateral setae of submentum absent; 3/ ventral side of tarsomere 5 glabrous; 4/ median lobe of aedeagus widened apically, with ostium deflected to right; 5/ basal part of left paramere not forming transverse apophysis, revealed that the species belong to the subgenus Derus Motschulsky of genus Poecilus Bonelli , and not to the subgenus Melanius Bonelli of genus Pterostichus Bonelli.

Figures

FIGURE 7. Holotype of Poecilus (Derus) jarkendis (Jedlička). Photo by Johannes Bergsten.

FIGURE 8. Holotype of Poecilus (Derus) jarkendis (Jedlička), median lobe of aedeagus (right lateral view) and right paramere (external face) foreground. Scale bar: 1 mm. Photo by Johannes Bergsten.