Pinodytes losangeles 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 : 29-30

Pinodytes losangeles Peck & Cook , new species

( Figs. 17 , 136 , 168–175 )

Type material. Holotype: male ( USNM). UNITED STATES. California: Los Angeles Co., Feb., Collection Coquillett . Paratypes (5). UNITED STATES. California: Los Angeles Co., Van Dyke Collection , 4 ( CASC); Santa Barbara, 9.I.1946, W.S. Ross, E.S. Ross Collection, 1 ( CASC) .

Material examined. We have examined 6 specimens.

Distribution. Specimens ( Fig. 136 ) are known only from Los Angeles and Santa Barbara counties in coastal southern California.

Diagnostic description. Total length 2.00– 2.38 mm; greatest width 0.94–1.10 mm. Reddish brown; elongateoval in shape ( Fig. 17 ). Head. Moderately finely punctate, punctures separated by 2 or more diameters; shining; with substriate microsculpture laterally. Eyes absent. Antenna ( Fig. 168 ) with antennomere 3 longer than 2; antennomere 5 larger than 4 and 6; antennomeres 7 and 8 subequal; antennomeres 9 and 10 each with a single sensory vesicle indicated apically by a protruding flange. Pronotum. Moderately finely punctate, shining, with transverse substriate microsculpture. Widest in basal one-half, sides slightly rounded, narrowing to apex; apical margin emarginate, basal margin straight; apical angles rounded, basal angles rectangular. Elytra. Moderately strongly, densely punctate; punctures in longitudinal rows, some rows impressed in basal one-half; punctures joined transversely by fine strioles. Joined elytra equal to pronotum in width; sides parallel in basal one-half, narrowing to apex. Basal one-half on lateral margin weakly serrate. Legs. Protibia ( Fig. 169 ) moderately slender; spinose apically and on apical one-half of outer margin; finely spinose on apical one-half of inner margin. Mesotibia ( Fig. 170 ) moderately slender; strongly spinose on outer margin and apically. Metatibia ( Fig. 171 ) elongate, slender; spinose apically; outer margin sparsely spinose; apical one-half of inner margin finely spinose. Metafemur ( Fig. 171 ) sexually dimorphic, broad in males. Male protarsomeres not expanded, bearing elongate setae laterally and thin, broad, colorless phanerae ventrally. Mesotarsomeres without phanerae. Venter. Mesoventrite ( Fig. 175 ) carinate; longitudinal carina with triangular toothlike expansion in anterior one-half; not excavated behind transverse carina. Male genitalia. Median lobe of aedeagus ( Figs. 172, 173 ) elongate, broad, with flattened, narrow apex. Inverted internal sac ( Fig. 173 ) with a small triangular sclerite. Parameres ( Figs. 172, 173 ) elongate, broad, with thin apices, extending beyond apex of median lobe; each bearing two well separated setae before apex. Spermatheca. Elongate ( Fig. 174 ), tubular, curved.

Etymology. The name losangeles , a noun in apposition, refers to the type locality of this species in Los Angeles Co., California.

Pinodytes marinensis Peck & Cook , new species

( Figs. 18 , 176–184 )

Type material. Holotype: male ( FMNH). UNITED STATES. California: Marin Co., Tocaloma , 19.V.1952, H.S. Dybas, berlese Neotoma debris pile . Paratypes (116). UNITED STATES. California: with same data as holotype, 26 ( FMNH) ; Marin Co., 1miS Olema , 18.III.1983, D.S. Chandler, sift laurel litter, 16 ( UNHC) ; Marin Co., 1miS S.P. Taylor St. Pk., 20.XII.1959, D.D. Linsdale, J.F. Lawrence Coll., 1 ( MCZC) ; Marin Co., 1miSE Inverness , 12.XI.1961, P.D. Ashlock, Fall Coll., 2 ( MCZC) ; Marin Co., 1miW Olema , 28.II.1976, J. Doyen, Ber. litter Lithocarpus densiflorus , 13 ( EMEC) ; Marin Co., 2kmS Olema , N38°00.5’ W122°46’, 9.V–11.VI.2003, 20m, S. Peck, 03-96, mixed ravine for. litter Ber., 2 ( SBPC) ; Marin Co., 6miNE Stinson Beach , 17.X.1975, F.G. Andrews, K.S. Corwin, Ber. mixed litter, 1 ( CSCA) ; Marin Co., 6miNE Stinson Beach , 17.X.1975, Fred G. Andrews, K.S. Corwin, Ber. redwood duff, 2 ( CSCA) ; Marin Co., Inverness , 17.V.1952, H.S. Dybas, underside of pine log, 1 ( SBPC) ; Marin Co., Inverness , 16.V.1952, H.S. Dybas, 1 ( SBPC) ; Marin Co., Inverness, Tomales Bay St. Pk. , N38°07.908’ W122°53.462’, 13.VI.2003, 15m, S. Peck, 03-99, Bay laurel log-side litter Ber., 9 ( SBPC) ; Marin Co., Mill Valley , 30.V.1952, H.B. Leech, sift forest duff, 2 ( CASC) ; Marin Co., Mill Valley , 14.VI.1952, H.B. Leech, sift forest duff, 1 ( CASC) ; Marin Co., Mill Valley , 28.V.1952, H.B. Leech, sift forest duff, 2 ( CASC) ; Marin Co., Mill Valley , 16.III.1954, H.B. Leech, damp leaves, 1 ( CASC) ; Marin Co., Mt. Tamalpais, E. slope, 21.V.1952, H.S. Dybas, Ber. ground litter, open oak grove, 1 ( SBPC) ; Marin Co., Muir Woods, Mill Valley , 17.V.1908, 1 ( CASC) ; Marin Co., Point Reyes, Five Brooks Trail , N37°59.844’ W122°45.492’, 16.VI.2003, 60m, S. Peck, 03-102, Bay myrtle litter Ber., 12 ( SBPC) ; Marin Co., S.P. Taylor St. Pk., 27.III.1971, F.G. Andrews, Ber. redwood duff, 3 ( CSCA) ; Marin Co., S.P. Taylor St. Pk., 31.III.1976, F.G. Andrews, T.D. Eichlin, Ber. redwood duff, 1 ( CSCA) ; Marin Co., S.P. Taylor St. Pk., N38°03’ W122°44’, 11.VI.2003, 70m, S. Peck, 03-97, mixed forest litter Ber., 2 ( SBPC) ; Marin Co., S.P. Taylor St. Pk., 15.VII.1995, J.F. Cornell, ex. redwood litter, 3 ( JFCC) ; Marin Co., Tocaloma , 18.V.1952, H.S. Dybas, Ber. Neotoma debris pile, 4 ( SBPC) ; Marin Co., Tocaloma , 18.V.1852, H.S. Dybas, sifting Neotoma debris pile, 3 ( SBPC) ; Marin Co., Woodacre , 1.XI.1953, R.O. Schuster, 6 ( UCDC) .

Additional material examined. We examined 64 additional specimens (see Appendix) for a total of 181 specimens.

Distribution. Specimens ( Fig. 184 ) are known from Marin and San Mateo counties, on both sides of the mouth of San Francisco Bay, in the Coastal Ranges of California.

Diagnostic description. Total length 1.00– 1.08 mm; greatest width 0.54–0.58 mm. Reddish brown; oval in shape ( Fig. 18 ). Head. Finely, sparsely punctate; shining, with transverse substriate microsculpture. Eyes absent. Antenna ( Fig. 176 ) with antennomere 2 longer than 3; antennomere 5 larger than 4 and 6; antennomere 7 slightly larger than 8; antennomeres 9 and 10 each with a single sensory vesicle indicated apically by a protruding flange.

Pronotum. Finely punctate, punctures separated by 2–4 diameters; shining, with transverse substriate microsculpture. Widest at base, sides roundly narrowing to apex; apical margin weakly emarginate, basal margin nearly straight; apical angles rounded, basal angles about rectangular. Elytra. Moderately finely punctate; punctures in longitudinal rows and joined by fine transverse strioles. Joined elytra slightly wider than pronotum, widest in basal one-fourth, roundly narrowing to apex. Legs. Protibia ( Fig. 177 ) slender; spinose on outer margin and apically; densely, finely spinose on apical three-fifths of inner margin. Mesotibia ( Fig. 178 ) moderately slender, straight; strongly spinose on outer margin and apically. Metatibia ( Fig. 179 ) slender, straight; outer margin and apex spinose; small spines on apical one-third of inner margin. Metafemur ( Fig. 179 ) moderately slender. Male protarsomeres ( Fig. 177 ) weakly expanded, bearing elongate setae laterally and broad, thin, colorless phanerae ventrally. Mesotarsomeres without phanerae. Venter. Mesoventrite ( Fig. 183 ) carinate; longitudinal carina with toothlike expansion near middle; not excavated behind transverse carina. Male genitalia. Median lobe of aedeagus ( Figs. 180, 181 ) broad, moderately flat; apex flat, weakly ogival in shape with narrowly rounded tip. Inverted internal sac ( Fig. 181 ) with a pair of elongate structures. Parameres ( Figs. 180, 181 ) elongate, broad, extending beyond apex of median lobe; apices flat; each bearing one long and two short setae before apex. Spermatheca. Elongate ( Fig. 182 ), sinuate, tubular.

Etymology. The name marinensis refers to the abundance of this species in Marin Co., California.

Figures

FIGURE 136. Distributions of species in the Pinodytes pusio species group in the southwestern United States. P.fresno, closed squares in the Sierra Nevada Mountains of central California. P. gibbosus, open circles in southern California coastal ranges (Santa Monica Mountains) and the Channel Islands. P. humboldtensis, closed circles in the Coastal Ranges of northwestern California. P.idaho, open square in west central Idaho. P. klamathensis, open triangles in the Klamath mountains of northern California and Southwestern Oregon. P. losangles, closed triangles in coastal mountains of southern California.

FIGURE 184. Distributions of species in the Pinodytes pusio species group in the southwestern United States. P.marinensis, open squares in the Coastal Ranges northwest of San Francisco Bay. P. minutus, open circles in the Coast and Sierra Nevada Mountains of central California, on both sides of the Napa River Valley. P. monterey, closed circles in the coastal Santa Lucia Mountains. P. parvus, closed triangles of the Coastal Ranges of northwest California., with disjunct populations west of San Francisco Bay. P. sanjacinto, open triangles in the San Jacinto Mountains of southern California.

FIGURES 11–18. Pinodytes habitus photos. 11. P.eldorado, total length 1.28 mm. 12. P. fresno, total length 1.54 mm. 13. P. gibbosus, total length 1.68 mm. 14. P. humboldtensis, total length 1.46 mm. 15. P.idaho, total length 1.28 mm. 16. P.klamathensis, total length 1.34 mm. 17. P.losangeles, total length 2.10 mm. 18. P. marinensis, total length 1.04 mm.

FIGURES 168–175. Pinodytes losangeles. 168. Male right antenna, dorsal. 169. Male right protibia and protarsus. 170. Male right mesotibia. 171. Male right metafemur and metatibia. 172. Aedeagus, lateral. 173. Aedeagus, dorsal. 174. Spermatheca. 175. Mesoventrite, lateral. Scale bar = 0.15 mm (Fig. 174), 0.4 mm (Figs. 168–173, 175).

FIGURES 176–183. Pinodytes marinensis. 176. Male right antenna, dorsal. 177. Male right protibia and protarsus. 178. Male right mesotibia. 179. Male right metafemur and metatibia. 180. Aedeagus, lateral. 181. Aedeagus, dorsal. 182. Spermatheca. 183. Mesoventrite, lateral. Scale bar = 0.15 mm (Fig. 182), 0.3 mm (Figs. 176–181, 183).