Trechus antonini 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 : 45-46

Trechus antonini Deuve, 1997

( Figs. 32 , 77 )

Catalogue: Trechus antonini Deuve, 1997: 149 . Locus typicus: South Central Tibet, Damzhung County, Largeh La, 5200 m (= Largen La or Lhachen La Pass N Damzhung place).

Type material: Not studied. Species identification is based on original description compared to additional material from the locus typicus. T. antonini is characterized by apomorphic aedeagal character states which allow an unambiguous diagnosis.

Additional material: CHINA: South Central Tibet: 16 males, 8 females, S Lhachen La, N Damzhung, 5150–5250 m, 30°38’20.2N 91°05’55.6E, 14.VII.07 ( CSCHM); 5 males, S Namtso, Langma Valley , 5100–5150 m, 30°37’39,1N 90°51’56.5E, 13.VII.07 ( CSCHM) .

Identification: See key above.

Relationships: See chapter Relationships of T. budhaensis sp. n., above.

Distribution and geographical variation: Fig. 100 . This species occurs on the central Nyainqentanglha Shan Massif, and up to now it is known from two localities: the type locality at Lhachen La pass approximately 12 km northeast of Damzhung, and the upper Langma valley on northern slope of the same mountain range just 20 km west of the type locality. No morphological variation could be found between individuals of these two populations. Probably more populations of the species exist at suitable localities in this relatively small section of the Nyainqentanglha Shan mountain range.

Habitat: Higher alpine zone; vertical distribution approximately 5100–5250 m. The specimens of the additional material were found under stones on humid, gently inclined slopes as well on the top of an older moraine, partly together with T. hodeberti Deuve, 1997 .

Figures

FIGURE 100. Map of Southern Central Tibet showing distribution of species of the Trechus antonini group (white circles). 1, T. antonini Deuve, 1997. 2, T. religiosus sp. n. 3, T. astrophilus sp. n. 4, T. budhaensis sp. n. 5, T. rarus sp. n. 6, T. yeti sp. n. 7, T. folwarcznyi Deuve, 1997. 8, T. yak yak ssp. n. 9, T. yak shogulaensis ssp. n. 10, T. tseringi sp. n. 11, T. singularis sp. n. 12, T. tsampa sp. n. 13, T. lama sp. 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 65–80. Aedeagal median lobe with sclerotized portions of internal sac in lateral view (Figs. 65–71, 77–80; Figs. 65, 68–71, 79, 80 in addition with parameres) and in dorsal view (Figs. 72–76). Figs. 65, 74, Trechus astrophilus sp. n., paratype. Fig. 66, T. lama sp. n., paratype. Fig. 67, T. singularis sp. n., holotype. Fig. 68, T. tsampa sp. n., paratype. Figs. 69, 76, T. yak yak ssp. n., paratype. Figs. 70, 73, T. religiosus sp. n., paratype. Figs. 71, 72, T. chaklaensis sp. n., paratype. Fig. 75, T. yak shogulaensis ssp. n., paratype. Fig. 77, T. antonini sp. n., non-type specimen from Lhachen La (= locus typicus). Fig. 78, T. folwarcznyi Deuve, 1997, non-type specimen from Shogu La (= locus typicus). Fig. 79, T. rarus sp. n., holotype. Fig. 80, T. tseringi sp. n., paratype.