374 PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES Series 4, Volume 63, No. 12 FIGURE 14. Queinnectrechus (Gaoligongtrechus) balli sp. nov.; a. Dorsal habitus (CASENT1001935). b. Median lobe of aedeagus of male (CASENT1001935), left lateral aspect. c. Map of locality records (red circles) for Q. balli in the Gaoligong Shan region. Scale lines a, b = 0.5 mm, c = 100 km.
DEUVE ET AL.: CARABID BEETLE FAUNA OF THE GAOLIGONG MOUNTAINS 375 DERIVATION OF SPECIES NAME.— The species epithet, balli, is the Latinized form (in the genitive <strong>case</strong>) of the surname of George Eugene Ball, Professor Emeritus at the University of Alberta, Edmonton, Alberta, Canada — our mentor, dear friend, and one of the world’s most accomplished and inspirational systematists. we are pleased to name this extraordinary species in his honor. DIAGNOSIS.— Adults of this species (Fig. 14a) can be distinguished from those of all other trechine species in the region by the combination of character states noted in the diagnosis for this genus. DESCRIPTION.— Size moderate, BL = 4.3 to 4.8 mm. Color of dorsum dark, forebody dark reddish brown, elytra piceous to black, antennae and legs reddish brown, palpi slightly paler, reddish tan; surface smooth and markedly shiny. Head. Slightly elongate, with eyes small but convex, their diameter less than length of tempora. Tempora not or only slightly convex, glabrous, and joined to neck region at a markedly obtuse (ca. 150°) angle. Frons with deep frontal furrow that delimit three (two lateral and medial) very convex areas, however furrows abruptly interrupted or less impressed posteriorly; two pairs of supraorbital seta present, the anterior pair inserted near middle of eyes, the posterior pair inserted dorsally on the tempora near the postocular furrow. Clypeus with four setae. Labrum with six setae, anterior margin distinctly concave. Right mandible tridentate, with the middle tooth reduced, obtuse, left mandible with premolar tooth fused with retinaculum to form a small caniniform process with a sharp tip. Mentum and submentum fused. Mentum with medial tooth broad, truncate, about half as long as lateral lobes, the latter apically pointed. Submentum with six setae anteriorly. Genae with a single ventral seta on each side. Antennae pubescent from apical half of scape distally, extended posteriorly to basal one-third of elytra, with four antennomeres posterior to the pronotal base, antennomere 3 slightly longer than antennomere 4. Pronotum. Narrowly cordate, not transverse, about as long as wide (Pw/PL = 1.0), markedly narrowed posteriorly, the lateral margins distinctly sinuate anterior to basal angles, the latter acute, projected, but without digitiform extensions. Disc markedly convex, globose, glabrous; median longitudinal impression faintly impressed; basal foveae formed as small, deep, circular pits, median basal area smooth, faintly delimited, basal margin dilated medially as a broad, round projection. Lateral margination narrow, evident only in anterior one-third, effaced in posterior two-thirds. Two or three anteromedial setae and a single basal seta present on each side, the latter inserted slightly but distinctly anterior to basal angle. Elytra. Elytral silhouette tear-shaped, narrower anteriorly than posteriorly, widest distinctly posterior to middle, humeri effaced, basal part of lateral explanation not visible from above. Disc markedly convex and smooth, with basal part abruptly and truncate, concave, fitted to convex base of pronotum, without distinct discal striae, except recurrent stria short but evidently impressed. Parascutellar setiferous pore present. Four to six discal setae present and aligned near presumed location of stria 3. Preapical seta present, inserted slightly more medially than the row of discal setae. Umbilicate setal series with setae of humeral group aggregated with distance between first and second setae less than between second and third and third and fourth, setae of median group distinctly posterior to middle. Legs. Moderately long but slender; protibiae with longitudinal furrow, sparely pubescent apically on anterior surface. Male protarsomeres 1 and 2 dilated and apicomedially toothed. Abdomen. Abdominal ventrites glabrous, except for a single paramedial seta on each side and ventrite VII of females with two setae on each side. Male aedeagus. Median lobe (Fig. 14b) slender, bent basally about 90° to shaft, basal bulb with a large sagittal aileron, apex short and slightly narrowed, blunt; endophallus with a pair of slender sclerites tapered to points on both ends.
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