Chlaenius (Pachydinodes) sokotranus Csiki, 1931

Felix, Ron F. F. L., Farkač, Jan & Suleiman, Ahmed Saeed, 2012, Annotated checklist of the Carabidae (Coleoptera) of the Socotra Archipelago, Insect biodiversity of the Socotra Archipelago. (Acta Entomologica Musei Nationalis Pragae 52), pp. 75-106 : 82-83

Chlaenius (Pachydinodes) sokotranus Csiki, 1931

Material examined (135 spec.). YEMEN: SOCOTRA ISLAND: E Socotra, 6.–24.ix.1999, 2 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( JFCP) ; S Socotra, 6.–24.ix.1999, 8 spec., lgt. V. Bejček & K. Šťastný, det. E. Kirschenhofer ( JFCP, DWCB, CULS) ; Dexam , Scant, 12.553N, 54.007E, 1170 m a.s.l., 6.–24.ix.1999, 1 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( CULS) ; Hadiboh , 6.–24.ix.1999, 4 spec., lgt. V. Bejček & K. Šťastný, det. E. Kirschenhofer ( JFCP) ; Deneghen , 12.617N 54.084E, 108 m a.s.l., 19.–20.ii.2000, 1 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( CULS) ; Ayhaft , 22.ii.2000, 2 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( JFCP, CULS) ; Dixam , 3.–6.iii.2000, 2 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( JFCP, CULS) ; Firmihin , 12.474N, 54.015E, 530 m a.s.l., x.2000, 5 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( JFCP, CULS) ; Haghier , 12.575N, 54.022E, 1502 m a.s.l., 4.–8.x.2000, 6 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( JFCP, CULS) ; Diksam , camp, 12°31,401′N, 53°57,204′E, 26.–27.x.2000, 1 spec., lgt. H. Pohl, det. M. Persohn ( HLMD) ; Hadiboh , near Suq, 12°26′N, 54°01′E, 28.x.2000, 2 spec., lgt. H. Pohl, det. M. Persohn ( HLMD) ; Homhil , 12°34′13″N, 54°18′32″E, 29.x.2000, 1 spec., lgt. H. Pohl, det. M. Persohn ( HLMD) ; Wadi Danegan , 12°36′59″N, 54°03′48″E, 60 m a.s.l., 30.x.2000, lgt. H. Pohl, det. M. Persohn ( HLMN) ; Ayhaft , 3.xi.2000, 7 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( JFCP, CULS) ; Lahas , 12.646N, 54.091E, 69 m a.s.l., 17.–18.xi.2000, 2 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( JFCP, CULS) ; Homhil , 12.587N, 54.302E, 330 m a.s.l., 20.–21.xi.2000, 7 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( JFCP, CULS) ; Wadi Faar , 3.xii.2002, 5 spec., lgt. V. Bejček & K. Šťastný, det. J. Farkač ( JFCP, CULS) ; Qalansiyah environment, Khayrha mountains, N slopes, 12°38′50″N, 53°27′45″E, 85–592 m a.s.l., 9.–10.xii.2003, 25 spec., lgt. & det. J. Farkač ( JFCP, CULS, OHCP) ; Wadi Ayhaft , 12°36′38″N, 53°48′49″E, 190 m a.s.l., 24.–26.xi.2003, 12 spec., lgt. P. Kabátek, det. J. Farkač ( JFCP, CULS) ; Wadi Ireeh , Noged Plain, 12°23′11″N, 53°59′47″E, 95 m a.s.l., 6.–7.xii.2003, 6 spec., lgt. & det. J. Farkač ( JFCP) ; Firmihin area , Dixam plateau, 12°47′40″N, 54°01′53″E, 428 m a.s.l., 3.xii.2003, 2 spec., lgt. P. Kabátek, det. J. Farkač ( JFCP) ; the same data, 2 spec., lgt. J. Farkač ; Wadi Esgego , Dixam plateau, 12°28′09″N, 54°00′36″E, 300 m a.s.l., 2.–3.xii.2003, 1 spec., lgt. & det. J. Farkač ( JFCP) ; Qualansiah environment, Ditwah (lagoon), 12°41′42″N, 53°30′08″E, 23 m a.s.l., 9.–10.xii.2003 ; 1 spec., lgt. & det. J. Farkač ( JFCP) ; Wadi Deneghen , 12°36′55″N, 54°03′49″E, 85 m a.s.l., 27.xi.2003, 3 spec., lgt. & det. J. Farkač ( JFCP) ; Ayheft valley , 22.xi.2008, 3 spec., lgt. Saldaitiene & Saldaitis, det. R.F.F.L. Felix ( IRSB) ; Wadi Ayhaft , camp, 12°36′58.7″N, 53°59′30.6″E, 22.ii.2009, at light, 1 spec., lgt. & det. R.F.F.L. Felix ( RFBE) ; Hadiboh plain, 12°39′14.97″N, 54°03′02.68″E, 23.ix.2009, 1 spec., lgt. & det. R.F.F.L. Felix ( RFBE) ; Ridah (Mômi), 12°32′40.3″N, 54°17′41.1″E, 24.ii.2009, at light, 1 spec., lgt. & det. R.F.F.L. Felix ( RFBE) ; guesthouse Hadiboh , 12°38′55.79″N, 54°00′46.79″E, 21.ii.2009, at light, 1 spec., lgt. & det. R.F.F.L. Felix ( RFBE) ; near Hadiboh , 11.i.2010, 1 spec., lgt. Saldaitis, det. R.F.F.L. Felix ( IRSB) ; Ayheft valley , 12.i.2010, 2 spec., lgt. Saldaitis, det. R.F.F.L. Felix ( IRSB) ; Wadi Kam , 13.i.2010, 1 spec., lgt. Saldaitis, det. R.F.F.L. Felix ( IRSB) ; Wadi Difarroh , south side, 15.i.2010, 1 spec., lgt. Saldaitis, det. R.F.F.L. Felix ( IRSB) ; top of Ayheft valley , 17.i.2010, 2 spec., lgt. Saldaitis, det. R.F.F.L. Felix ( IRSB) ; sand dunes near Irisseyl loc., 18.i.2010, 2 spec., lgt. Saldaitis, det. R.F.F.L. Felix ( IRSB) ; Adhoh di Melhoh , 12°34′19.9″N, 54°02′49.0″E, 31.x.2010, 2 spec., lgt. & det. R.F.F.L. Felix ( RFBE) ; Wadi Ayaft , 265 m a.s.l., 12°36′21.7″N, 53°59′33.9″E, 26.x.2010, 5 spec., lgt. & det. R.F.F.L. Felix ( RFBE) ; Mômi plateau, 12°32′40.7″N, 54°21′27.0″E, 505 m a.s.l., 2.xi.2010, 1 spec., lgt. & det. R.F.F.L. Felix ( RFBE) ; Wadi di-Negehen, 12°36′55.58″N, 54°03′48.28″E, 25.x.2010, 1 spec., lgt. & det. R.F.F.L. Felix ( RFBE) ; Mômi (Nit), 12°27.414′N, 53°17.487′E, 600 m a.s.l., 29/ 30.i.2001, 1 spec., lgt. V. Neumann, det. D.W. Wrase ( DWCB) .

Diagnosis. Body length 12.5–13.0 mm. Head and pronotum black, shiny, sparsely and finely punctured. Lateral margins of pronotum and elytra with weak violet lustre. Elytra black, dull. Intervals on both sides along striae with irregular rows of punctures and pubescence. Antennomere I red underneath, rest of antennae black. Legs black.

Comments on classification. The species was described by GAHAN (1903) as Chlaenius melancholicus , preoccupied by Chlaenius melancholicus Laferté-Sénectère, 1851 . CSIKI (1931) proposed a new substitute name C. sokotranus .

Collection circumstances. In 2010, this species was very common everywhere. The specimens at Mômi (Nit) were collected in a highland on rocky soil free of vegetation. Several specimens were collected at light in various habitats.

Distribution. A species endemic to Socotra Island.