Trechus qiqiensis, Deuve & Kavanaugh & Liang, 2016

Deuve, Thierry, Kavanaugh, David H. & Liang, Hongbin, 2016, Inventory of the Carabid Beetle Fauna of the Gaoligong Mountains, Western Yunnan Province, China: Species of the Tribe Trechini (Coleoptera: Caraboidea), with Descriptions of Four New Genera, One New Subgenus and 19 New Species., Proceedings of the California Academy of Sciences 63 (12), pp. 341-455 : 381-382

Trechus qiqiensis Group:

2. Elytra with recurrent stria in line anteriorly with stria 5, preapical seta inserted near stria 2; size moderately large for group (BL = 4.0 to 4.2 mm) (Fugong County).. T. shiyueliang sp. nov. Elytra with recurrent stria in line anteriorly with stria 7, preapical seta inserted in interval 3, either near stria 2 or stria 3; size varied........................................ 3

3. Size larger, BL at least 4.0 mm................................................ 4 Size smaller, BL less than 4.0 mm.............................................. 6

4. Size larger (BL = 4.5-4.7 mm); pronotum less transverse (ratio PW/PL = 1.40), with anterior transverse impression indistinct; elytra broad, disc slightly flattened (Tengchong County)....................................................... T. mingguangensis sp. nov. Size smaller (BL = 4.0 to 4.2 mm); pronotum more transverse (ratio PW/PL = 1.44 to 1.46), with anterior transverse impression distinct; elytra ovoid, disc convex, not at all flattened. 5

5. Elytra with discal striae very distinctly punctate and slight attenuated toward elytral apex; pronotum with basal foveae deep, distinct (Gongshan County)........ T. qiqiensis sp. nov. Elytra with discal striae only faintly punctate and not attenuated toward elytral apex; pronotum with basal foveae shallow, less well defined (Fugong County)......................................................................... T. pseudoqiqiensis sp. nov.

6. Size larger (BL = 3.7-3.8 mm), elytra with lateral discal striae more shallowly impressed but still clearly evident (Lushui County) ......................... T. luzhangensis sp. nov. Size smaller (BL = 3.3-3.5 mm); elytra with discal striae 6 and 7 effaced, faintly or not at all evident................................................................... 7

7. Tempora only slightly convex (Gongshan County) ( Fig. 23a ).... T. gongshanensis sp. nov. Tempora markedly convex (Fugong County) ( Fig. 24a )............ T. shibalicus sp. nov.

Figures

FIGURE 23. Trechus gongshanensis sp. nov.; a. Dorsal habitus (CASENT1001929). b. Median lobe of aedeagus of male (CASENT1001929, left lateral aspect. c. Map of locality record s(red circles) for T. gongshanensis in the Gaoligong Shan region. Scale lines a, b = 0.5 mm, c = 100 km.

FIGURE 24. Trechus shibalicus sp. nov.; a. Dorsal habitus (CASENT1017532). b. Median lobe of aedeagus of male (CASENT1017532), left lateral aspect. c. Map of locality records (red circles) for T. shibalicus in the Gaoligong Shan region. Scale lines a, b = 0.5 mm, c = 100 km.