Sicoderus medranae 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 : 323-325

publication ID 10.11646/zootaxa.4497.3.1

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Sicoderus medranae Anderson

sp. nov.

Sicoderus medranae Anderson , n. sp.

( Figures 49–50 View FIGURES 49–52 , 57 View FIGURES 57–60 . Map 5)

Description: Length male, 5.1–5.6 mm; female, 4.5–5.3 mm. Integument black, shining. Eyes closely separated by a distance equivalent to about 2 or 3 ommatidia. Rostrum 0.82–0.98x length elytra in male; 0.96–0.99x length elytra in female. Antennal insertion slightly beyond middle in male, at about middle in female. Prothorax constricted anteriorly, globose, widest at about middle; punctures dense, small and shallow on disc, slightly larger, deeper and forming weak striolae laterally on flanks; erect setae present. Elytra in dorsal view widest at about midlength, lateral margins subparallel anteriorly and posteriorly; humeri present, strongly angulate; erect setae present, long, fine. Strial punctures evident, small, shallow; striae not, to very slightly impressed throughout length. Membranous wings present. Abdominal ventrite 1 of male slightly raised in middle near posterior margin with a pair of small patches of setosity at tip; of female, uniformly convex in middle near posterior margin. Ventrite 5 of male concave medially towards apex; of female, uniformly convex. Legs with all femora with ventral margin with small to moderately large tooth (largest on front femora); tarsal claws with small basal tooth. Aedeagus (fig. 57) slightly widest at middle, internal sac with pair of elongate thick basal sclerites very slightly convergent apically, conjoined anteriorly. Female not dissected.

Material examined: 3 males, 6 females. Holotype male ( CMNC), labelled DOMINICAN REPUBLIC: Province Monsenor Nouel, La Presa de Blanco , 11–14.V.2001, M. Takizawa . Paratypes. Data as holotype (1 female; MHND). Province La Vega, Parque Nacional Armando Bermudez, Cienaga , 1020m, 19.VII–2.VIII.1995, S. Peck, 95-34, tropical evergreen forest FIT (1 female; CMNC) . Parque Nacional Armando Bermudez, 7 km SE Jarabacoa , 970m, 23.VI.2005, 19°05.092’N 70°35.864’W, L. Chamorro & A. Konstantinov (1 male; USNM) GoogleMaps . Province San Cristobal, Borbon, Cuevas Pomier , 200m, 13–28.VII.1995, S. Peck, tropical deciduous forest FIT. 95-23 (1 female; CMNC) . Province San Pedro de Macoris, 12 km W San Pedro de Macoris, 5.V.1985, E. Giesbert (1 female; CWOB). Province Santiago, Diego de Ocampo , 2000–4000’, vii.1938, P.J . Darlington Jr. (1 female, MCZC) . Distrito Nacional, Villa Mella , 1.V.1959, M.W. Sanderson, RD59-1 (1 female; CWOB). HAITI: Massif La Hotte, N.E. foothills, 2000–4000’, 10.x.1934, P.J . Darlington Jr. (1 male, MCZC).

The male from Haiti was dissected and matches other specimens from the Dominican Republic. A single female from Puerto Rico, near Guajataco, 28.iv.1959, M.W. Sanderson, PR59-21 ( INHS) may be this same species but a male is needed for confirmation.

Derivation of species name: This species is named after Sardis Medrano Cabral, of Santo Domingo in the

Dominican Republic, in recognition of her assistance in the study of various Dominican Republic weevils.

Natural History: Two adults were collected in flight intercept traps in tropical deciduous and evergreen forests (200–1020 m).

Comments: This species is similar to S. championi but differs in the fine punctation of the pronotum and the elytral humeri more strongly developed. Male genitalia are very similar in the form of the basal sclerite of the internal sac.


Smithsonian Institution, National Museum of Natural History


Illinois Natural History Survey













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