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394 PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES<br />
Series 4, Volume 63, No. 12<br />
Mentum with medial tooth broad and apically truncate, about one-half the length of the lateral<br />
lobes. Submentum with six setae anteriorly. Gula wide. Genae with a single seta ventrally on each<br />
side. Antennae short, extended posteriorly to basal one-sixth of elytra, with about 2 or 3 antennomeres<br />
extended posteriorly beyond basal pronotal margin; antennomeres 2 and 3 about equal in<br />
length, antennomere 4 slightly shorter.<br />
Pronotum. Transverse (ratio Pw/PL = 1.44), narrowed posteriorly, greatest width near anterior<br />
one-fourth; lateral margins markedly rounded, with a short sinuation just anterior to basal angles,<br />
the latter small, rectangular and sharp. Disc convex, smooth and glabrous, median longitudinal<br />
impression finely impressed, but continuous between anterior and posterior margins; basal foveae<br />
distinct, circular; median basal area faintly rugulose, delimited laterally by short, oblique furrows.<br />
Basal margin nearly rectilinear, slightly projected medially. Lateral borders of pronotum moderately<br />
slender, regular, narrowly and regularly reflexed, lateral grooves narrow but distinctly<br />
impressed. Single midlateral setae on each side inserted slightly anterior to middle; single basolateral<br />
seta on each side, inserted at basal angle.<br />
Elytra. Ovoid, humeri distinct but rounded. Disc convex and smooth. Striae finely punctate,<br />
intervals faintly convex; striae 1 to 4 deeply impressed but attenuated apically, stria 5 more faintly<br />
impressed, striae 6 to 8 effaced or nearly so. Parascutellar striole present. Recurrent stria terminated<br />
anteriorly by a slight convexity at the presumed location of stria 7 apically. Basal setiferous<br />
pore present at common origin of striae 1 and 2. Two discal setae present and inserted next to stria<br />
3, one at anterior one-fourth and one near middle of elytra. Preapical seta present and inserted in a<br />
discal position on interval 3, next to either stria 2 or 3 in forward position at apical one-fourth of<br />
elytra in most specimens; in a few specimens two preapical setae present, one inserted farther forward<br />
next to stria 3, as a third discal seta, the second inserted less far forward and next to stria 2.<br />
Umbilicate setal series with setae of humeral group equidistance from each other and setae of median<br />
group inserted slightly posterior to middle.<br />
Legs. Medium proportions, slightly short, protibiae with longitudinal furrow. Male protarsomeres<br />
1 and 2 dilated and apicomedially toothed.<br />
Abdomen. Abdominal ventrites glabrous, except for a single paramedial seta on each side, and<br />
ventrite VII of males apically with one pair of paramedial setae, of females with two pairs.<br />
Male aedeagus. Median lobe (Fig. 20b) large and robust, with a moderate-sized sagittal<br />
aileron; shaft subapically bent ventrally; apical lamella sinuate and reflexed dorsally, bluntly pointed<br />
apically; endophallus with a more heavily sclerotized voluminous lobe or scaly fold.<br />
HABITAT DISTRIBUTION.— Members of this species have been found at elevations ranging<br />
from 2775 to 3750 m in a variety of habitats. At the lowest elevation (2775 m), specimens were<br />
collected by sifting meager leaf litter and mosses on the forest floor and on rotting logs (Fig. 42a).<br />
This area had abundant conifers (Abies, Thuja, and Picea species) that formed a partly open<br />
canopy. Litter and mosses were moist and substrate underneath was composed of crumbling<br />
granitic sand. Specimens of Trechepaphiopsis monochaeta sp. nov. were also collected in the same<br />
litter samples at this site. At higher elevations (above 3300 m), specimens were found under stones<br />
in meadows, talus slopes, in low Rhododendron thickets, and on heath-covered tundra slopes (Fig.<br />
37b). In such areas, T.qiqiensis specimens were found syntopic with those of Queinnectrechus<br />
(Gaoligongtrechus) balli and Queinnectrechus (s.str.) griswoldi,and at highest elevation (3750 m)<br />
also with members of Trechus gongshanensis sp. nov.<br />
GEOGRAPHICAL DISTRIBUTION WITHIN THE GAOLIGONG SHAN.— Fig. 20c. we examined a<br />
total of 12 specimens (5 males and 7 females), all from Bingzhiongluo and Cikai Townships in<br />
Gongshan County on the crest and eastern slope of the northern part of the Gaoligong Shan (see<br />
Type material above for exact collection data). These localities are all in Core Area 2.
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