Sicoderus guanyangi Anderson, 2018

Anderson, Robert S., 2018, The genus Sicoderus Vanin 1986 (Coleoptera: Curculionidae: Curculioninae: Erodiscini) in the West Indies, Zootaxa 4497 (3), pp. 301-345 : 317-319

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Sicoderus guanyangi Anderson

n. sp.

Sicoderus guanyangi Anderson , n. sp.

( Figures 31–32 View FIGURES 29–32 , 36 View FIGURES 33–36 . Map 4)

Description: Length male, 2.8–3.9 mm; female, 2.5–3.8 mm. Integument black, shining. Eyes rather widely separated by a distance about two-thirds width rostrum at midlength. Rostrum 1.24–1.50x length elytra in male; 1.35–1.61x length elytra in female. Antennal insertion at about apical 2/ 5 in male, slightly before midlength in female. Prothorax constricted anteriorly, globose, widest at about middle; punctures widely spaced, very small, very shallow on disc, larger and deeper, forming striolae laterally on flanks; scattered erect setae present, especially along anterior margin. Elytra in dorsal view widest at midlength, lateral margins convergent both anteriorly and posteriorly; humeri fully reduced, not at all angulate; a few long, fine setae present. Strial punctures evident, very small, very shallow; striae not impressed. Membranous wings absent. Abdominal ventrite 1 of male with conical tubercle near posterior margin with a small patch of setosity at tip; of female, uniformly convex in middle near posterior margin. Ventrite 5 slightly impressed at middle with sparse setae laterally around impression, uniformly convex in female, not setose. Legs with all femora simple, ventral margin lacking tooth; tarsal claws with small basal tooth. Aedeagus (fig. 36) subequal in width throughout length, internal sac with pair of elongate basal sclerites convergent apically, but separate, each with elongate subparallel basal extension. Female not dissected.

Material examined: 16 males, 11 females. Holotype male ( CMNC), labelled DOMINICAN REPUBLIC: Province Monsenor Nouel, 25 km E El Rio (La Vega), 945m, 1.IX.1988, M.A. Ivie, T.K. Phillips & E.A. Johnson . Paratypes: Data as holotype (1 female, WIBF). Province Independencia, Sierra de Neiba , 1515m, 18°39.680’N, 71°46.418’W, 25.VII.1999, cloud forest, M. Ivie & K GoogleMaps . Guerrero (1 female, WIBF) . Province La Vega, Parque Nacional Armando Bermudez, La Cienaga , 1000m, 19.VII–2.VIII.1995, S. Peck, 95-32, tropical evergreen forest FIT (2 females; CMNC) . Parque Nacional Armando Bermudez, La Cienaga, Rio Yaque N., 19°04.07N, 70°52W, 1100m, 4.IV.1992, M.A. Ivie, D. Sikes, W. Lanier (1 female; CMNC) . Parque Nacional Armando Bermudez, trail west of La Cienaga , 900–1300m, 22.VI.2005, 19°03.988’N 70°51.764’W, L. Chamorro & A. Konstantinov (1 male; USNM) GoogleMaps . Parque Nacional Armando Bermudez, La Cienega de Manabao, trail to Los Tablones , 19 03’41”N, 70 51’53”W, 1150m, 13.VI.2008, N. Franz (6 males, ASUHIC, BMNH, CMNC, FSCA) . 20 km SW Piedra Blanca , 29.V.1978, C.W. & L.B. O’Brien, G.B. Marshall (1 male; ASUHIC: 1 male, 1 female; CWOB) . 18 km SE Constanza , 4.VIII.1979, C.W. O’Brien (1 male; CWOB) . 15 km S El Rio , 5.IX.1997, P.W. Kovarik (1 female; CWOB) . 10 km W Jima , 27.V.1992, R. Turnbow (1 male, 1 female; CMNC) . Distrito Nacional, Santo Domingo , 14.VII.1974, J. & S. Klapperich (2 females; CWOB) . Province Elías Piña, La Estrella, 8 km E Hondo Valle , 7.VIII.1979, L.B. O'Brien (1 male; CWOB) . Province Monsenor Nouel, Casabito, Cordillera Central, 5.VI.1974, J. & S. Klapperich (1 male, 1 female; CWOB). Province Santiago, Diego de Ocampo , 2000–4000’, vii.1938, P.J . Darlington Jr. (2 males, MCZC).

Derivation of species name: This species is named after Guanyang Zhang, presently at the Florida Museum of Natural History, University of Florida, formerly at Arizona State University, Tempe, Arizona where he studied weevils of the subfamily Entiminae (and Heteroptera). He was also a field companion on the 2013 Cuba field trip.

Natural History: This species has been collected in tropical evergreen forest (1000–1100 m) and in cloud forest (1515 m).

Comments: This species is very similar to S. turnbowi , S. ramosi and S. bautistai , but can be distinguished by the shape of the basal sclerite in the male aedeagus, the lack of femoral teeth and the conical tubercle of abdominal ventrite 1 of males.


West Indian Beetle Fauna Project Collection


Smithsonian Institution, National Museum of Natural History


Florida State Collection of Arthropods, The Museum of Entomology













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