Pinodytes sinuatus 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 : 49-50

Pinodytes sinuatus Peck & Cook , new species

( Figs. 43 , 359 , 384–391 )

Type material. Holotype: male ( SBPC). UNITED STATES. Oregon: Jackson Co.: Soda Mt. Rd. , 7miS 13miE Ashland, 4900’, 15.X.72, big leaf maple duff and rotted wood, E.M. Benedict, EB-958 . Paratypes (13). UNITED STATES. Oregon: same data as holotype except: big leaf maple duff, EB-957, 3 ( SBPC) ; Jackson Co.: Soda Mt Rd, 8miS 13miE Ashland , 5400’, 15.X.72, white fir duff, E.M. Benedict, EB-942, 1 ( SBPC) ; same data except: oak duff litter, EB-949, 5 ( SBPC) ; same data except: ponderosa pine duff, EB-952, 3 ( SBPC) ; same data except: white oak duff, EB-953, 1 ( SBPC) .

Material examined. We have examined 14 specimens.

Distribution. Specimens ( Fig. 359 ) are known only from Jackson County, in southwestern Oregon.

Diagnostic description. Total length 1.92–2.44 mm; greatest width 0.84–0.92 mm. Reddish brown; elongate in shape ( Fig. 43 ). Head. Moderately finely, irregularly punctate; with a mixture of reticulate and substriate microsculpture. Eyes absent. Antenna ( Fig. 384 ) with antennomeres 2 and 3 subequal in length; antennomere 5 larger than 4, longer than 6; antennomere 7 clearly larger than 8; antennomeres 9 and 10 lack visible sensory vesicles. Pronotum. Moderately finely punctate; punctures separated by 2–3 diameters; disc with three pairs of larger punctures, positioned subapically, posteromedially and subbasally; with reticulate microsculpture. Slightly wider near middle than at base, narrowing apically; apical margin emarginate, basal margin straight; apical angles rounded, basal angles weakly obtuse. Elytra. Moderately coarse, irregular strial punctures; interstrial punctures fine; punctures joined by fine transverse strioles. Slightly wider than pronotum; sides subparallel in basal one-half, narrowing to apex. Legs. Male protibia ( Fig. 385 ) evenly widened from narrow base to broad apex; apex narrower in female; two curved spines at apex of outer margin; apical one-half of inner margin with fine, dense spines. Mesotibia ( Fig. 386 ) in male with basal two-thirds narrow, sinuate; apical one-third strongly widened; unmodified in female; strong spines on outer margin in both sexes. Metatibia ( Fig. 387 ) elongate, narrow, nearly straight in both sexes. Metafemur ( Fig. 387 ) slender. Male protarsomeres 1–3 ( Fig. 385 ) weakly widened, bearing elongate setae laterally and multiple broad, thin, colorless phanerae ventrally; protarsomere 1 longer than 2 and 3 combined. Mesotarsomeres without phanerae. Venter. Mesoventrite ( Fig. 391 ) carinate; longitudinal carina with a small median tooth; excavation behind transverse carina. Male genitalia. Median lobe of aedeagus ( Figs. 388, 389 ) cylindrical, sinuate laterally and dorsoventrally; with broad, flattened apex. Inverted internal sac ( Fig. 389 ) with a large curved sclerite and two small sclerites. Parameres ( Figs. 388, 389 ) narrow, reaching constriction at base of flattened apex of median lobe; each bearing one apical and one slightly subapical seta. Spermatheca, Tubular ( Fig. 390 ), curved.

Etymology. The name sinuatus, Latin , sinuate, refers to the shape of the median lobe of the aedeagus of this species.

Figures

FIGURE 359. Distributions of species in the Pinodytes cryptophagoides species group in northwestern United States. P. isabella, open triangle in northern Idaho. P.orca, closed square in southwestern Oregon. P.setosus, closed triangles in southwestern Oregon and northwestern California. P. shoshone, closed circles in northern Idaho. P. sinuatus, open squares in southwestern Oregon.

FIGURES 37–43. Pinodytes habitus photos. 37. P.garibaldi, total length 2.80 mm. 38. P. haidagwaii, total length 3.04 mm. 39. P. isabella, total length 2.18 mm. 40. P.orca, total length 4.20 mm. 41. P.setosus, total length 1.96 mm. 42. P. shoshone, total length 2.18 mm. 43. P. sinuatus, total length 2.28 mm.

FIGURES 384–391. Pinodytes sinuatus. 384. Male right antenna, dorsal. 385. Male right protibia and protarsus. 386. Male right mesotibia. 387. Male right metafemur and metatibia. 388. Aedeagus, lateral. 389. Aedeagus, dorsal. 390. Spermatheca. 391. Mesoventrite, lateral. Scale bar = 0.1 mm (Fig. 390), 0.3 mm (Fig. 391), 0.4 mm (Figs. 384–389).