Pterostichus (Oreoplatysma) stomoides ( CHAUDOIR 1868)

Guéorguiev, B., 2010, The " colchicus " group of Pterostichus (Coleoptera, Carabidae), Linzer biologische Beiträge 42 (1), pp. 659-669 : 663

Pterostichus (Oreoplatysma) stomoides ( CHAUDOIR 1868) ( Figs 11-14 )

Feronia stomoides CHAUDOIR 1868: 251 .

T y p e m a t e r i a l 1, 1 syntypes (male lectotype and female paralectotype by present designation), well preserved; male bears label "Touchètie" [handwritten], and the female – label "Grusia 1870" [handwritten]. Close to both specimens, the following handwritten label is pinned on the bottom of box: " stomoides MOTSCH. Caucase Motschulsky " (MNHN, "Collection Chaudoir", box no 216 " Argutor ").

T y p e l o c a l i t y."AlpesdelaTouchétie(Caucasecentraletoriental)"( CHAUDOIR 1868: 251).

M a l e g e n i t a l i a. Median lobe of aedeagus in lateral view ( Fig. 11 ) with ostium deflected to left, apical part longer than basal part and with straight ventral margin, tip of apex somewhat bent upwards; basal part with strongly developed and prominent ventral process; internal sac (inverted state) with single strongly chitinised piece. Apex of median lobe in dorsal view ( Fig. 12 ) with tip deflected to left. Left paramere ( Figs 13-14 ) sickle-shaped, regularly round in middle; basal part forming big widened bulb; apical part with round (not pointed) tip.

After drawing, the genitalia were included in Euparal and put on separate transparent label pinned under the lectotype.

T a x o n o m i c n o t e s a n d r e l a t i o n s h i p s The presence of pubescence on the distal part of third antennomeres, dense and continuous punctuation on the basal part of pronotum, absence of medial setiferous punctures on hind coxae, glabrous ventral side of onychium, and sickle-shaped left paramere demonstrate that this species belongs to subgenus Oreoplatysma , and not to Cryobius . Therefore, the following transfer is proposed: Pterostichus (Oreoplatysma) stomoides ( CHAUDOIR 1868) , new assignment of Pterostichus (Cryobius) stomoides ( CHAUDOIR 1868) .

According to the external morphology and structure of the male genitalia, this species seems closer to the taxa from the group " daghestanus ", and especially to P. chefsuricus REITTER 1896 and P. kirschenblatti KRYZHANOVSKIJ 1988 . However, the apex of aedeagus distinctly bent to left and somewhat turn upwards and different shape of the left paramere suppose that P. stomoides is distinct from the other two species.

P. stomoides should be treated as valid species.

D i s t r i b u t i o n.Tushetia(KRYZHANOVSKIJ et al. 1995: 102).

Figures

Figs 11-14: Feronia stomoides CHAUDOIR, lectotype: Fig. (11) aedeagus, left lateral view; Fig. (12) apex of aedeagus, dorsal view; Fig. (13) right paramere, internal view; Fig. (14) right paramere, external view. Scale bar 0.5 mm (11-14).