Pinodytes tuolumne Peck & Cook, 2011

Peck, Stewart B. & Cook, Joyce, 2011, Systematics, distributions and bionomics of the Catopocerini (eyeless soil fungivore beetles) of North America (Coleoptera: Leiodidae: Catopocerinae) 3077, Zootaxa 3077 (1), pp. 1-118 : 37-38

Pinodytes tuolumne Peck & Cook , new species

( Figs. 27 , 224 , 249–256 )

Type material. Holotype: male ( SBPC). UNITED STATES. California: Tuolumne Co., Harden Flat , 37°48.71’N 119°56.6’W, 3780’ elev., 14-JUL-2005, A.R. Cline collr., ex. Berleseate . Paratypes (5). UNITED STATES. California: Tuolumne Co., Yosemite NP, Tioga Rd. , 9.0miE Crane Flat, 18.V.1976, 7100’, A. Newton. M. Thayer, Ber. squirrel middens & litter, fir forest, 5 ( FMNH) .

Material examined. We have examined 6 specimens.

Distribution. Specimens ( Fig. 224 ) are known only from Tuolumne County, California, on the western slope of the Sierra Nevada Mountains, in and near Yosemite National Park.

Diagnostic description. Total length 1.64 mm; greatest width 0.88 mm. Reddish brown; oval in shape ( Fig. 27 ).

Head. Finely, sparsely punctate; a pair of larger punctures on vertex; shining, with microsculpture of transverse lines on vertex. Eyes absent. Antenna ( Fig. 249 ) with antennomeres 2 and 3 subequal in length, 2 wider than 3; antennomere 5 larger than 4 and 6; antennomere 7 longer but not wider than 8; antennomeres 9 and 10 each with a single sensory vesicle indicated apically by a protruding flange. Pronotum. With scattered fine punctures, a few larger punctures at base and apex; shining; completely covered with substriate microsculpture. Widest at base, sides slightly rounded and narrowing to apex; apical margin emarginate; basal margin broadly, weakly emarginate; apical angles rounded, basal angles more narrowly rounded. Elytra. Punctation fine, serially arranged but not impressed; punctures joined by fine transverse strioles. Joined elytra slightly wider than pronotum; widest at base; nearly parallel in basal one-half, narrowing to apex; weakly serrate laterally. Legs. Protibia ( Fig. 250 ) slender; with spines apically and near base of outer margin; apical one-half of inner margin finely, densely spinose. Mesotibia ( Fig. 251 ) slender, weakly curved; strongly spinose apically, on outer margin, and apical one-third of inner margin. Metatibia ( Fig. 252 ) moderately elongate, curved in male, widened in apical three-fifths; spinose apically, two spines on ventral face; apical one-half of inner margin with widely spaced fine spines. Metafemur ( Fig. 252 ) moderately slender. Male protarsomeres ( Fig. 250 ) expanded, bearing elongate setae laterally and thin, broad, colorless phanerae ventrally. Mesotarsomeres without phanerae. Venter. Mesoventrite ( Fig. 256 ) carinate; longitudinal carina depressed at middle; with toothlike expansion in anterior one-half; not excavated, but with a small depression behind transverse carina. Male genitalia. Median lobe of aedeagus ( Figs. 253, 254 ) broad, with narrow, flattened apex. Inverted internal sac ( Fig. 254 ) with cluster of spines. Parameres ( Figs. 253, 254 ) elongate, broad, extending beyone apex of median lobe; with a small flange on inner margin before apex; each bearing two well separated setae before apex. Spermatheca. Elongate ( Fig. 255 ), bulbous at apex.

Etymology. The name tuolumne , a noun in apposition, refers to the type locality of this species in Tuolumne Co., California.

Figures

FIGURE 224. Distributions of species in the Pinodytes pusio species group in the southwestern United States. P. sequoia, open triangles in the southern Sierra Nevada of central California. P.shasta, closed triangles in Trinity Alps mountains in north western California. P.spinus, solid square, in western foothills of the Sierra Nevada Mountains in northern California. P. tehama, open circles at the northern end of the Central Valley and on both sides of the Sacramento River, California. P. tuolumne, closed circles on the western slope of the Sierra Nevada mountains, Yosemite National Park.

FIGURES 19–27. Pinodytes habitus photos. 19. P.minutus, total length 1.08 mm. 20. P. monterey, total length 1.52 mm. 21. P. parvus, total length 1.22 mm. 22. P. sanjacinto, total length 1.60 mm. 23. P. sequoia, total length 2.92 mm. 24. P.shasta, total

FIGURES 249–256. Pinodytes tuolumne. 249. Male right antenna, dorsal. 250. Male right protibia and protarsus. 251. Male right mesotibia. 252. Male right metafemur and metatibia. 253. Aedeagus, lateral. 254. Aedeagus, dorsal. 255. Spermatheca. 256. Mesoventrite, lateral. Scale bar = 0.1 mm (Fig. 255), 0.3 mm (Figs. 249, 253, 254, 256), 0.4 mm (Figs. 250–252).