Pinodytes subterraneus ( Hatch, 1935 ) 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 : 39-40

Pinodytes subterraneus ( Hatch, 1935) , new combination

( Figs. 29 , 266–274 )

Catopocerus subterraneus (Hatch) 1935: 115 ; 1957: 19. Original genus: Typhloleiodes .

Type material. Type male in USNM, seen. Type label data: Seaside , Clatsop Co., Oregon ; 28.VI.1933, M. C. Lane.

Additional material examined. We examined 3 additional specimens (see Appendix)

for a total of 4 specimens.

Distribution. Specimens ( Fig. 274 ) are known only from Clatsop County, in northwestern Washington.

Diagnosis. Total length 2.56–3.72 mm; greatest width 1.16–1.64 mm. Reddish brown; elongate-oval in shape ( Fig. 29 ). Head. Moderately finely punctate, punctures separated by 2–3 diameters; with a mixture of reticulate and substriate microsculpture. Eyes absent. Antenna ( Fig. 266 ) with antennomere 3 as wide as and slightly longer than 2; antennomere 5 longer than 4 and 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; five large punctures, each bearing a short erect seta, along each lateral margin; a few large punctures subapically and subbasally, paired or randomly scattered; with reticulate microsculpture. Posterior one-half of about equal width from base to middle, then narrowing to apex; apical margin emarginate, basal margin straight; apical angles rounded, basal angles subrectangular. Elytra. Strial punctures moderately coarse, arranged in variably feebly impressed longitudinal rows; interstrial punctures mostly slightly smaller, with a few scattered larger punctures; punctures feebly or not joined by fine strioles, forming a weak imbricate pattern. Joined elytra slightly wider than pronotum; sides subparallel in basal one-half, narrowing apically. Legs. Protibia ( Fig. 267 ) broad at apex in male, more slender in female; two curved spines at apex of outer margin; apical one-half of inner margin with fine, dense spines. Mesotibia ( Fig. 268 ) evenly widened to apex; with strong spines on outer margin and apically; apical one-half of inner margin with small spines. Metatibia ( Fig. 269 ) slender basally, widened in apical two-fifths, spinose in apical one-half. Metafemur ( Fig. 269 ) moderately slender; slightly widened in apical one-half. Male protarsomeres ( Fig. 267 ) bearing elongate setae laterally and thin, colorless, broad phanerae ventrally; first protarsomere elongate. Mesotarsomeres without phanerae. Venter. Mesoventrite ( Fig. 273 ) carinate, with small median tooth; excavation behind transverse carina. Male genitalia. Median lobe of aedeagus ( Figs. 270–271 ) elongate, broad, evenly curved; angulate before short, flattened apex; angulation sinuate dorsally. Inverted internal sac ( Fig. 271 ) with curved structure bearing two small narrow lobes. Parameres ( Figs. 270, 271 ) slender, about two-thirds length of median lobe, each bearing one apical and one subapical seta. Spermatheca. Tubular ( Fig. 272 ), sharply curved near middle.

Bionomics. Specimens have been found associated with sporocarps of hypogeous fungi ( Fogel and Peck 1975).

Figures

FIGURE 274. Distributions of species in the Pinodytes cryptophagoides species group in northwestern United States. P.subterraneus, open triangles in northwestern Oregon. P. imbricatus, closed triangles in northwestern Oregon. P. newelli, closed squares widely distributed from southeastern Oregon along the Coast Ranges to central western Washington. P. cappizzi, open circles widely distributed in the Coast Ranges from southeastern Oregon to west central Washington, and east of the volcanic Cascade mountains in southeastern Oregon.

FIGURES 28–36. Pinodytes habitus photos. 28. P. cryptophagoides, total length 1.88 mm. 29. P. subterraneus, total length 3.48 mm. 30. P. imbricatus, total length 3.20 mm. 31. P. newelli, total length 2.30 mm. 32. P. capizzii, total length 1.64 mm. 33. P.rothi, total length 1.58 mm. 34. P. tibialis, total length 1.60 mm. 35. P. angulatus, total length 1.86 mm. 36. P. delnorte, total length 1.72 mm.

FIGURES 266–273. Pinodytes subterraneus. 266. Male right antenna, dorsal. 267. Male right protibia and protarsus. 268. Male right mesotibia. 269. Male right metafemur and metatibia. 270. Aedeagus, lateral. 271. Aedeagus, dorsal. 272. Spermatheca. 273. Mesoventrite, lateral. Scale bar = 0.2 mm (Fig. 272), 0.45 mm (Figs. 270, 271), 0.6 mm (Fig. 273), 0.7 mm (Figs. 266–269).