Pinodytes delnorte 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 : 44-45

Pinodytes delnorte Peck & Cook , new species

( Figs. 36 , 310 , 327–334 )

Type material. Holotype: male ( SBPC). UNITED STATES. California: Del Norte Co., Jed Smith Redw. St. Pk., 10 km E Crescent City, N41°46’ W124°05’, mixed forest litter Ber., 40m, 30.V.03, S. Peck, 03-87 . Paratypes (76). UNITED STATES. California, same data as holotype, 5 ( SBPC) ; Del Norte Co., Jed Smith Redw. St. Pk. , N41°48’ W124°07’, 4.Vi.2003, 65m, S. Peck, 03-92, redwood for. litter Ber., 1 ( SBPC) ; Del Norte Co., Myrtle Ck. Botanical Res., 18kmNE Crescent City , N41°48’ W124°03’, 31.V.2003, 30m, S. Peck, 03-88, mixed for. litter, 9 ( SBPC) ; Del Norte Co., Del Norte Redw. St. Pk., 10kmS Crescent City , N41°42’ W124°08’, 2.VI. 2003, 300m, S. Peck, 03-91, redwood for. litter Ber., 2 ( SBPC) ; Del Norte Co., nr. Fort Dick , 21.V.1957, redwood floor, 1 ( SBPC) ; Del Norte Co., Crescent City , 19.IX.1978, T.R. Haig, Ber. redwood duff, 25 ( CSCA) ; Del Norte Co., Jeddiah Smith State Pk., 25.XI.1981, F. W. Merickel, Sequoia leaf litter Ber., 25 ( WFBM) ; Del Norte Co., 2miN Fort Dick , 21.XI.1953, V.D. Roth, 4 ( EMEC) ; Del Norte Co., Fort Dick , 2.XII.1966, C.W. O’Brien, Ber. shore debris, 4 ( FSCA) .

Additional material examined. We examined an additional 137 specimens (see Appendix) for a total of 214 specimens.

Distribution. Specimens ( Fig. 310 ) are known only from Del Norte and Humboldt counties, in northwestern California.

Diagnostic description. Total length 1.58–1.84 mm; total width 0.80–0.90 mm. Dark reddish brown; elongateoval in shape ( Fig. 36 ). Head. Finely punctate, shining, with reticulate microsculpture. Eyes absent. Antenna ( Fig. 327 ) with antennomere 2 slightly 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. Finely punctate, punctures separated by 2– 4 diameters; with a few larger punctures bearing short setae; with reticulate microsculpture. Widest at posterior one-third; slightly narrower than elytra; sides weakly rounded, narrowing in apical two-thirds; apical margin weakly emarginate, basal margin nearly straight; anterior angles broadly rounded, basal angles weakly obtuse, narrowly rounded. Elytra. Moderately densely, coarsely punctate; punctures finer near apex; punctures joined by fine strioles forming an imbricate pattern; subbasally with impressed transverse striole joining a row of punctures. Slightly wider than pronotum; sides about parallel in basal one-third, then narrowing to apex. Legs. Protibia ( Fig. 328 ) narrow at base, broad apically in both sexes; 2 curved spines near apex of outer margin; apical one-half of inner margin with fine, dense spines. Mesotibia ( Fig. 329 ) narrower than protibia in both sexes; with strong spines on outer margin, apical two-fifths of inner margin, and apically. Metatibia ( Fig. 330 ) slender, with swollen apex in male, unmodified in female; with slender spines in apical one-half, spinose apically. Metafemur ( Fig. 330 ) slender. Male protarsomeres ( Fig. 328 ) not or weakly expanded; protarsomere 1 as long as 2 and 3 combined; bearing elongate setae laterally and thin, broad, colorless phanerae ventrally. Mesotarsomeres without phanerae. Venter. Mesoventrite ( Fig. 334 ) carinate; longitudinal carina with median tooth; broad and smooth anterior to tooth; excavated behind transverse carina; patches of dense, white setae lateral to longitudinal carina. Male genitalia. Median lobe of aedeagus ( Figs. 331, 332 ) elongate, moderately slender, dorsoventrally curved, with elongate, narrow apex. Inverted internal sac ( Fig. 332 ) with a small sclerotized structure and numerous short, broad spines. Parameres ( Figs. 331, 332 ) slender, shorter than median lobe, each with two apical setae. Spermatheca. Elongate ( Fig. 333 ), curved, tubular.

Etymology. The name delnorte , a noun in apposition, refers to the occurrence of this species in Del Norte Co., California.

Figures

FIGURE 310. Distributions of species in the Pinodytes cryptophagoides species group in northwestern United States. P.rothi, open circles in northwestern Oregon down Coast Mountains to northern coastal California. P. tibialis, closed circles in southwestern Oregon. P. angulatus, open triangles in northwestern Oregon. P. delnorte, closed squares in northwestern California. P. garibaldi, closed triangle in northwestern 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 327–334. Pinodytes delnorte. 327. Male right antenna, dorsal. 328. Male right protibia and protarsus. 329. Male right mesotibia. 330. Male right metafemur and metatibia. 331. Aedeagus, lateral. 332. Aedeagus, dorsal. 333. Spermatheca. 334. Mesoventrite, lateral; dotted line indicates area of setal patch. Scale bar = 0.1 mm (Fig. 333), 0.3 mm (Figs. 331, 332, 334), 0.4 mm (Figs. 327–330).