Trechus pumoensis Deuve, 1997

Schmidt, Joachim, 2009, Taxonomic and biogeographical review of the genus Trechus Clairville, 1806, from the Tibetan Himalaya and the southern central Tibetan Plateau (Coleoptera: Carabidae: Trechini) 2178, Zootaxa 2178 (1), pp. 1-72 : 25

Trechus pumoensis Deuve, 1997

( Figs. 28 , 39 )

Catalogue: Trechus pumoensis Deuve, 1997: 142 . Locus typicus: South Central Tibet, Lhodrak County, Monda La [= Manda La] pass, altitude 5200 m.

Type material: Paratypes: 2 males, 2 females, with label data: “CHINA-C. TIBET, Mondala , 5200 m, 30 km W of Lhodak, 22.5.1997, leg. A. Wrzecionko ” ( CGITZ, CSCHM) .

Identification: See key above.

Relationships: Within the T. franzianus group this species is the only one that has eyes slightly reduced ( Fig. 28 ) and stria VIII more deeply impressed from the level of the fifth umbilicate pore. All the other species of this group share the more apomorphic character states by having more strongly reduced eyes ( Figs. 29–31 ) and a more strongly reduced eighth elytral stria. Therefore, T. pumoensis is considered to be sister taxon of an evolutionary line comprising T. aedeagalis sp. n., T. eremita sp. n., T. franzianus Mateu & Deuve, 1979 , T. muguensis sp. n., T. sculptipennis sp. n., and T. tilitshoensis Schmidt, 1994 .

Distribution: Fig. 98 . Tibetan Himalaya of Lhodrak County, South Central Tibet, north of Bhutan.

Habitat: Presumably a semi-edaphic species of the higher alpine zone.

Figures

FIGURE 98. Map of central parts of Tibet and the Himalaya showing distribution of species of the Trechus thibetanus group (white circles), of the Trechus pumoensis group (white squares), of the Trechus rolwalingense group (black circles), and of the Trechus stratiotes group (black squares). 1, T. namtsoensis sp. n. 2, T. dongulaensis sp. n. 3, T. thibetanus Jeannel, 1928. 4, T. glabratus sp. n. 5, T. thorongiensis Schmidt, 1994. 6, T. eutrechoides eutrechoides Deuve, 1992. 7, T. eutrechoides mondaensis Deuve, 1997. 8, T. pumoensis Deuve, 1997. 9, T. tilitshoensis Schmidt, 1994. 10, T. franzianus Mateu & Deuve, 1979. 11, T. muguensis sp. n. 12, T. eremita sp. n. 13, T. aedeagalis sp. n. 14, T. sculptipennis sp. n. 15, T. rolwalingense rolwalingense ssp. n. 16, T. rolwalingense daldunglana ssp. n. 17, T. stratiotes stratiotes ssp. n. 18, T. stratiotes malikasthana ssp. n.

FIGURES 28–35. Head, pronotum. Fig. 28, Trechus pumoensis Deuve, 1997, paratype, male. Fig. 29, T. eremita sp. n., paratype, female. Fig. 30, T. tilitshoensis Schmidt, 1994, paratype, male. Fig. 31, T. aedeagalis sp. n., paratype, male. Fig. 32, T. antonini Deuve, 1997, non-type female specimen from Lhachen La. Fig. 33, T. yeti sp. n., paratype, male. Fig. 34, T. cf. damchungensis Deuve, 1997, paratype, male from Tangula Pass. Fig. 35, T. hodeberti Deuve, 1997, non-type female specimen from Lhachen La.

FIGURES 39–51. Aedeagal median lobe with sclerotized portions of internal sac in lateral view (Figs. 39, 40, 42, 43, 45, 47, 49; Figs. 39, 40, 47, 49 in addition with parameres) and in dorsal view (Figs. 41, 44, 46, 48, 50). Fig. 39, Trechus pumoensis Deuve, 1997, paratype. Figs. 40, 41, T. franzianus Mateu & Deuve, 1979, non-type specimen from Dhauli Lake. Fig. 42, T. tilitshoensis Schmidt, 1994, non-type specimen from Gungdang N-slope. Fig. 43, 44, T. muguensis sp. n., paratype (43) and holotype (44). Figs. 45, 46, T. eremita sp. n., paratype. Figs. 47, 48, T. sculptipennis sp. n., paratype. Figs. 49, 50, T. aedeagalis sp. n., paratype. Fig. 51, T. stratiotes sp. n., paratype.