Trechus wrzecionkoi Deuve, 1996

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 : 22

Trechus wrzecionkoi Deuve, 1996

( Fig. 24 )

Catalogue: Trechus wrzecionkoi Deuve, 1996: 70 . Locus typicus: South Central Tibet, Medro Gonggar County, Gyama Valley, “Hepu-Sugala”, altitude 5200 m.

Type material: Holotype male, with label data “ HOLOTYPE ”, “ Tibet 5200 m Hepu – Suga La”, “ Trechus wrzecionkoi n. sp. Holotype Th. Deuve det. 1996” ( MNHN).

Additional material: CHINA: South Central Tibet: 1 male, Gyama Valley, ca. 60 km E Lhasa, north west ascent of Chungenpo Shong side valley, 4900–5230 m, ca. 29°40’36N 91°35’33E, 21.VII.07 ( CSCHM) .

Identification: See key above. Within the original description Deuve (1996) noted that the copulatory piece is completely reduced. However, as shown in Fig. 24 , a well sclerotized portion of aedeagal internal sac is developed in the specimen from Chungenpo Shong side valley, and it could also be verified in the holotype specimen, when the aedeagus was cleared in lactic acid.

Relationships: At present species relationships within the T. wrzecionkoi group are unknown.

Distribution: Fig. 99 . Transhimalaya east of Lhasa: Higher mountains around Gyama Valley of Medro Gonggar County, South Central Tibet.

Habitat: Higher alpine zone; vertical distribution approximately 5100–5230 m.

Figures

FIGURE 99. Map of Southern Central Tibet showing distribution of species of the Trechus wrzecionkoi group (white circles), of the Trechus dacatraianus group (white squares), of the Trechus solhoeyi group (black circle), and of the Trechus chaklaensis group (black square). 1, T. wrzecionkoi Deuve, 1996. 2, T. martinae sp. n. 3, T. korae sp. n. 4, T. damchungensis Deuve, 1997. 5, T. hodeberti Deuve, 1997. 6, T. bastropi sp. n. 7, T. mieheorum sp. n. 8, T. solhoeyi sp. n. 9, T. chaklaensis sp. n.

FIGURES 12–27. Aedeagal median lobe with sclerotized portions of internal sac in lateral view (Figs. 12–18, 23–26; Figs. 14, 17, 23, 26 in addition with parameres) and in dorsal view (Fig. 27); apical portion of the longer copulatory piece (Figs. 19–22). Fig. 12, Trechus thorongiensis Schmidt, 1994, paratype, the arrow pointed to the prolongated basal portion of the shorter copulatory piece. Fig. 13, T. eutrechoides eutrechoides Deuve, 1992, non-type specimen from Rongshar Valley. Fig. 14, T. eutrechoides mondaensis Deuve, 1997, paratype. Figs. 15, 19, T. thibetanus Jeannel, 1928, holotype. Figs. 16, 20, T. thibetanus Jeannel, 1928, non-type specimen from Kampa La. Figs. 17, 21, T. dongulaensis sp. n., paratype. Figs. 18, 22, T. namtsoensis sp. n., paratype. Fig. 23, T. glabratus sp. n., paratype. Fig. 24, T. wrzecionkoi Deuve, 1996, non-type specimen from Gyama, Chungenpo Chong side valley. Fig. 25, T. korae sp. n., paratype. Figs. 26, 27, T. martinae sp. n., paratype.