Plumolepilius andersoni Barrios-Izás, 2020

Plumolepilius andersoni Barrios-Izás , new species

( Figs. 1–12 View FIGURES 1–6 View FIGURES 7–12 , 165 View FIGURE 165 )

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Diagnosis: Male. Length ( 1.63–1.94 mm). Width ( 1.06–1.25 mm). As for P. hectori but cuticle brown, rostrum and legs orange, antenna yellow; rostral scales almost reaching antennal insertions, frons less sunken between eyes, humeri produced, hind femoral spine inconspicuous. Pedon elongate, subparallel, slightly wider at apex; temones large and thin; 1.8x longer than pedon, anterior genital sclerite Y-shape, bilobed, posterior genital sclerite curved plate.

Female. Length ( 1.56–1.88 mm). Width ( 0.94–1.25 mm). As for the male except differs by the rounded humeri and bare rostrum.

Geographic Distribution. Costa Rica ( San José and Puntarenas) and Panamá ( Chiriquí).

Derivation of the specific name. Patronym, after Robert S. Anderson, a weevil systematist at the Canadian Museum of Nature, Ottawa, Canada.

Material examined: 16♂♂, 10♀♀ ( ASUCOB, BMNH, CMNC, MNCR, USNM). Holotype ♂ ( MNCR): COSTA RICA: Puntarenas, Valle de Silencio, Bajando Cerro Hoffman, 2307m, 82°56’36” W 09°04’41” N, 26-27.II.2005, R. Anderson, mixed oak forest litter / Holotype ♂ Plumolepilius andersoni Barrios-Izás sp. nov. Aedeagus extracted. Paratypes: Same data as holotype ( 2♀♀, CMNC). Same data except for Bajando Cerro Quemado, 2202m, 82°59’01” W 09°03’43” N, 27.II.2005 ( 1♂ 1♀, CMNC). COSTA RICA: San Jose, km 117 Pan-Am Hwy, 19km.N.San Isidro 09°28’N 83°42’20”W, 1800m, 20.VI.1997, R.S. Anderson, cloud for. litter 97-021 ( 1♂, CMNC). Same data except for 25.VI.1997, 97-035C ( 1♀, MNCR). COSTA RICA: Puntarenas, Est. Biol. Las Alturas. 8°57’N 82°52’W. 1550m forest litter, 27-29 March 2002. A. Cline ( 1♀, CMNC). COSTA RICA: Puntarenas, Est. Biol. Las Alturas, 2km.N.E. Alturas, 1520m, 08°56’56”N 82°50’01”W, 20.vi.1998, R. Anderson, upper montane/cloud forest trans. litter 98-104H ( 1♀, CMNC). Same data except for 10.VII.1999, 99-126D ( 1♀, BMNH). PANAMA: Chiriqui, 5.6km.N.Boquete, La Culebra Trail, 1450m, 15-19.VI.1996, J.Ashe & R.Brooks, FIT,#176 ( 1♂, CMNC). PANAMA: Chiriqui, 12km.N.E. Santa Clara Cerro Pando, 8°54.74’N 82°43.29’W, 1850m, 96-139B, 18.VI.1996, R.Anderson oak forest litter ( 1♂, CMNC). PANAMA: Chiriqui, P. Nac. Volcan Baru, 11.0km W. Boquete, 2150m, 18.VI.1995 -33H, R.S. Anderson, mixed oak for. litt. ( 1♂, CMNC). PANAMA: Chiriqui, 30.7 km W. Volcan, Hartmann’s Finca, 1800m, 16.VI.1995 -28F, R.S.Anderson, mixed oak for. litt. ( 1♂ 1♀), CMNC. Same data except for 1450m, 14.VI.1995 -24E, wet mont trop.for. litt. ( 1♂, ASUCOB). PANAMA: Chiriqui, 5.6km.N. Boquete La Culebra Trail, 1450m, 19.VI.1996, R.Anderson, 96- 141B oak forest litter ( 1♂, USNM). COSTA RICA. Puntarenas, Zona Protectora Las Tablas, 0.5 km. N. Las Alturas, 1500-2000m, 8°56’N, 82°50’W, 27.v.2007, M.G. Branstetter, MGB-528, primary premonate rain forest leaf litter / WWD0128599 ( 1♂, CMNC), WWD0128486 ( 1♂, CMNC). COSTA RICA. Puntarenas, La Amistad International Park, nr. Casa Coca, 4 km N.E. Altamira Biological Station, 9°04’N, 83°00’W, 1900m, 31.v.2007, M.G. Branstetter, MGB-582, primary premonate forest leaf litter / WWD0128160 ( 1♂, CMNC). COSTA RICA: Puntarenas, Altamira Biological Station, Sendero de los Gigantes de Bosque, 9°02’N 83°01’W, 1400m, 1.vi.2007, M.G. Branstetter, MGB- 588, primary premontane rain forest litter / WWD0122656 ( 1♂, CMNC), WWD0122651 ( 1♂, CMNC), WWD0128012 ( 1♂, CMNC), WWD0122678 ( 1♂, BMNH), WWD0128041 ( 1♀, ASUCOB), WWD 0127881 ( 1♀, USNM).