Pinodytes punctatus 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 : 19

Pinodytes punctatus Peck & Cook , new species

( Figs. 4 , 52 , 62–69 )

Type material. Holotype: male ( FMNH). UNITED STATES. Washington: Spokane Co.: Mt. Spokane , base, 22 June 1957, H.S. Dybas leg., floor litter . Paratypes (73): same data as holotype, 12 ( FMNH) ; Spokane Co., Mt. Spokane, Bald Knob , 22.VI.1957, 4500’, H.S. Dybas, under dung, 3 ( FMNH) ; Spokane Co., Mt. Spokane, Bald Knob , 3.VI.1986, J.B. Johnson, 3 ( WFBM) ; Idaho: Benewah Co., 12miS Coeur D’Alene , 15.IV.1988, F.W. Merickel, B.F., 55 ( WFBM) .

Material examined. We have examined 74 specimens.

Distribution. Specimens ( Fig. 52 ) are known from Benewah County in northern Idaho, and Spokane County, in eastern Washington.

Diagnostic description. Total length 1.36–1.50 mm; greatest width 0.64–0.72 mm. Reddish brown; elongate oval in shape ( Fig. 4 ) Head. Finely, sparsely punctate, shining, with reticulate microsculpture posteriorly on vertex. Eyes absent. Antenna ( Fig. 62 ) with antennomere 2 longer than 3; antennomere 5 larger than 4 and 6; antennomere 7 clearly larger than 8; antennomeres 9 and 10 lack visible sensory vesicles. Pronotum. Punctures larger than on head, separated by 2–4 diameters, shining, with faint reticulate microsculpture. Widest at base, slightly narrower than elytra; sides nearly parallel in basal one-half; more rounded, converging in apical one-half; apical margin emarginate, basal margin nearly straight; apical angles subangulate, basal angles about right-angled. Elytra. With moderately coarse punctures arranged serially, becoming finer laterally and apically; shining; posterolateral punctures with erect setae. Joined elytra slightly wider than pronotum, widest at basal one-fourth, narrowing to apex.

Legs. Protibia ( Fig. 63 ) slender, straight, evenly widened to apex; outer margin with two elongate curved spines apically, shorter spines on apical one-half; apical one-half of inner margin with fine spines. Mesotibia ( Fig. 64 ) slightly wider apically than protibia; strong spines on outer margin, apical one-half of inner margin with fine spines. Metatibia ( Fig. 65 ) slender, straight; strong spines apically; apical one-half of inner margin with fine spines. Metafemur ( Fig. 65 ) slender. Male protarsomeres ( Fig. 63 ) and mesotarsomeres ( Fig. 64 ) not expanded, bearing elongate setae laterally and a double row of broad, thin, colorless phanerae ventrally. Venter. Mesoventrite ( Fig. 69 ) carinate, longitudinal carina with a small median tooth; not excavated behind transverse carina. Male genitalia. Median lobe of aedeagus ( Figs. 66, 67 ) elongate, broad, dorsoventrally flattened throughout, evenly narrowed to apex. Inverted internal sac with a transverse, curved sclerite. Parameres ( Figs. 66, 67 ) broad, flat; not reaching apex of median lobe; each bearing one subapical and one apical seta. Spermatheca. Elongate ( Fig. 68 ), cylindrical, curved.

Etymology. The name punctatus, Latin , punctate, refers to the prominently punctured pronotum and elytra of this species.

Figures

FIGURE 52. Distributions of basal and monobasic species groups of Pinodytes in western United States. P. newtoni, closed circles in Missouri, Arkansas, and Texas. P. borealis, closed circles in inset map of Alaska. P. punctatus, open squares in eastern Washington and northern Idaho. P.colorado, open circles in western Colorado. Note: in this and all following maps, small open circles represent major cities.

FIGURES 2–10. Pinodytes habitus photos. 2. P.newtoni, total length 1.38 mm. 3. P. borealis, total length 2.10 mm. 4. P. punctatus, total length 1.36 mm. 5. P.colorado, total length 1.66 mm. 6. P.pusio, total length 1.54 mm. 7. P. ovatus, total length 1.34 mm. 8. P. chandleri, total length 1.54 mm. 9. P. constrictus, total length 1.48 mm. 10. P.contortus, total length 1.16 mm.

FIGURES 62–69. Pinodytes punctatus. 62. Male right antenna, dorsal. 63. Male right protibia and protarsus. 64. Male right mesotibia and mesotarsus. 65. Male right metafemur and metatibia. 66. Aedeagus, lateral. 67. Aedeagus, dorsal. 68. Spermatheca. 69. Mesoventrite, lateral. Scale bar = 0.1 mm (Fig. 68), 0.3 mm (Figs. 62–67, 69).