Cylindridia fuscipes sp. n.

Prena, Jens, 2006, A preliminary study Cylindridia with descriptions of new species from Middle America (Coleóptera: Baridinae), Beiträge Zur Entomologie = Contributions to Entomology 56 (1), pp. 189-198 : 196

Cylindridia fuscipes sp. n.

Holotype male (dissected), Costa Rica, labeled: “COSTA RICA, Prov. San José , R. F J Rio Macho , Est. Ojo de Agua./ Alrededor de la Estación . 3000m. 27/ ABR 1997. B. Gamboa. Red de Golpe / L_S_396500_ 482050 #46760”, CRI002 565388 (INBC) .

Paratypes 26 (12 males, 14 females), Costa Rica, labeled: “COSTA RICA. Prov. San José , R.F./ Los Santos, Centro turístico Mirador de/ Quetzales , Send. Mirador de Quetzales ,/ 2755 m, 1 MAY 2002, R. González,/ Golpe, L__S_398799_479741 #69451”, INB0003484893 (INBC 1); “ COSTARICA: Prov. San José:/ R.F. Los Santos , Fea. E./ Serrano , Hwy. km 70, 2600-/ 2700 m, 9°38'N 83°51'W/ leg. J. Preña, 13.-16.5.2004” ( JPPC 5 ); “ COSTA RICA: Prov. San José :/ R.F. Los Santos , Villa Mills , La/ Georgina , Hwy. km 95, 2900-/ 3000 m, 9°34'N 83°45 'W / 3.-6.3.2005, leg. J. Preña ” (JPPC 8); “ COSTARICA, S.J.,/ 26mi.N. [on highway from] San Isidro/ del General , 10,500'/ VI-23-1974”, “ C.W. & L.B. O’Brien/ & G.B. Marshall ” (CWOB 1); “ COSTA RICA, Prov. Limón:/ P .N. La Amistad , Valle del/ Silencio , 10km NE Altamira,/ 2500 m, 9“07'N 82°58' W,/ 24.2.-26.2.2005, leg. J. Prena ” (JPPC 8); “ COSTA RICA: Prov. Heredia:/ 6km ENE Vara Blanca, 1950-/ 2050m, 10°11 'N 84°07'W/ leg. J. Prena, 21.-25.4.2004/ INBio-OET-ALAS transect” (JPPC 1); same label except line 4 “9.4.2002”, “20/M/04/064” (INBC 1); “ COSTA RICA: Heredia/ Cerro Chompipe / 10°05'20"N, 84°04'30"W/ ca. 2km. N. Monte de la/ Cruz, 2000 m, 12.VI.1997/ R. Anderson, cloud forest/ 97-012-X, on Cyperaceae “ (CMNC 1) .

Description: Fig. 2 , 16-20 , 25, 26 . Total length 3.3-4.9 mm, standard length 3.2-4.7 mm, derm dark green (occasionally bluish iridescent) with metallic luster, glabrous, rostrum and legs fuscous with metallic luster, antenna fuscous; both sexes with rostrum shorter than pronotum, curved in apical one-third (female) or throughout (male), male with angularly projecting lamellar process ventrad of antennal insertion; antennal club elongate, at least as long as distal five funicular segments combined; pronotum longer than wide, sides subparallel, constricted apically and tubulate in front; sides of aedeagus bisinuate, apex sinuate, dorsum with 2-layered proximal lobe on each side, apodemes shorter than body of aedeagus, internal sac short, basal sclerite absent, tegmen with parameres and basal apodem of subequal length, male sternite 9 with distal appendices very unequal.

Distribution: Costa Rica (with one site near Panamanian border), Cordilleras Central and Talamanca, 2000-3100 m elevation

Plant associations: I reared two specimens from Carex d o n n ell-sm ith ii and five specimens from R hynchospora ru izian a in Villa Mills. Adult weevils were collected from Carex d o n ­ n ell-sm ith ii (P r e n a 7), R hynchospora ruiziana (P r e n a 1) and unidentified Cyperaceae (A n d e r s o n 1).

Epithet: The name is a compound Latin noun referring to dark legs.

Discussion: Cylindridiafuscipes occurs together with C. rubripes, and both species can be found even on the same individual plant. In almost all cases (I noticed one exception in 230 specimens), they can be distinguished by the color of the legs as indicated by the epithets. The outer elytral stria of C. fuscipes generally is impressed near the apex, but not so in C. rubripes. Further useful character states for separating the two species are, for females, the curvature of the rostrum and, for males, the presence of an angular lamellar process below the antennal insertion.

Figures

Fig: 1-3: Dorsal habitus of 1, C. rubripes, male; 2, C.fuscipes, female; 3, Cylindridia sp. A, male.

Fig: 4-20: Male genitalia and associated structures. 4-8, C. prolixar. 4-5, aedeagus, dorsal and lateral; 6, tegmen; 7-8, sternites 8 and 9. 9-11, C. propinqua-. 9-10, aedeagus, dorsal and lateral; 11, basal sclerite. 12-15, C. rubripes-. 12-14, aedeagus, dorsal and lateral (13, high-elevation form from Villa Mills, 3000 m); 15, basal sclerite. 16-20, C.fiiscipes: 16-17, aedeagus, dorsal and lateral; 18, tegmen; 19-20, sternites 8 and 9. Scale bars 0.25 mm, 11 and 15 scaled by factor 3.

Fig: 21-28: Head and prothorax, lateral. C.propinqua-. 21, female; 22, male. C. rubripes-. 23, female; 24, male. C.fuscipes-. 25, female; 26, male. Cylindridia sp. A: 27, female; 28, male.