Sicoderus turnbowi 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 : 337

Sicoderus turnbowi Anderson , n. sp.

( Figures 85–86 , 91 . Map 6)

http://zoobank.org/urn:lsid:zoobank.org:act:D8B66897-61DB-4A32-9DC6-A0848F8B7D3A

Description: Length male, 3.3–4.3 mm; female, 2.8–4.4 mm. Integument black, shining. Eyes rather narrowly separated by a distance about one-fourth width rostrum at midlength. Rostrum 0.94–1.00x length elytra in male; 0.93–1.00x length elytra in female. Antennal insertion at about apical 1/ 3 in male, at about midlength in female. Prothorax constricted anteriorly, globose, widest at about middle; punctures widely spaced, small, shallow on disc, larger and deeper, forming vague striolae laterally on flanks; scattered erect setae present, especially along anterior margin. Elytra in dorsal view widest at about midlength, lateral margins convergent both anteriorly and posteriorly; humeri fully reduced, not at all angulate; a few long, fine setae present. Strial punctures evident, small, shallow; striae not impressed. Membranous wings absent. Abdominal ventrite 1 of male with conical tubercle at middle near posterior margin with a small patch of setosity at tip; of female, uniformly convex in middle near posterior margin. Ventrite 5 flattened at middle in male, uniformly convex in female, not setose in either sex. Legs with front femora with small, blunt tooth on inner margin, middle and hind femora simple, lacking tooth; tarsal claws with small basal tooth. Aedeagus (fig. 91) subparallel-sided but slightly widened at apex, internal sac with pair of elongate basal sclerites straight, strongly convergent and separate, each lacking basal extension but with base wider than apex. Female not dissected.

Material examined: 6 males, 8 females. Holotype male ( CMNC), labelled DOMINICAN REPUBLIC: Province Barahona, Upper Paraiso Valley , 600–800m, 29.III.1978, L. Masner . Paratypes. Province Barahona, nr. Filipinas, Larimar Mine , 20–26.VI.1992, R.E. Woodruff & P.E. Skelley, at night (1 male, 2 females; CMNC, FSCA) . Filipinas, 18 07.339’N, 71 07.152’W. 625m, Blacklight /night beating, 7 July 2004, S.W. Lingafelter (1 female, USNM). 4.5 km. S . Barahona, 9.VII.1996, R. Turnbow (1 female; CMNC). 7 km N.W. Paraiso , 200m, rainforest, 27.XI.–4.XII.1991, FIT, Masner & Peck, 91–341 (1 male; CMNC). Mountains south of Barahona , 500m, 13.VII.1993, D. Sikes & R. Rosenfeld (1 male; WIBF). Province Pedernales, 24 km N. Cabo Rojo, 610m, 21.VIII.1988, wet forest at light and night beating, M. Ivie, K. Phillips, K. Johnson (1 male, 2 females; CMNC, WIBF). 24 km N . Cabo Rojo, 535m, 1.VII.1996, M.C. Thomas (1 female; CWOB). 24 km N . Cabo Rojo, 3.XII.1991, L. Masner, sweep (1 male, 1 female; CMNC).

Derivation of species name: This species is named after Robert H. Turnbow, Jr., of Fort Rucker, Alabama in recognition of his collections of numerous species of weevils in the West Indies and elsewhere.

Natural History: Specimens were collected in flight intercept traps and beating at elevations ranging from 200– 800m.

Comments: The holotype of this species was included by Vanin (1986) as Sicoderus ramosi , a very closely related and similar species. Along with S. ramosi , this species is also very similar to S. guanyangi and S. bautistai , but can be distinguished by the shape of the basal sclerite in the male aedeagus (compare figs. 69 and 91), the presence of a small, blunt front femoral tooth and the conical tubercle of abdominal ventrite 1 of males.

Figures

FIGURES 85–88. Species of Sicoderus. 85. Sicoderus turnbowi, dorsal habitus. 86. Sicoderus turnbowi, lateral habitus. 87. Sicoderus vanini, dorsal habitus. 88. Sicoderus vanini, lateral habitus.

FIGURES 91–93. Species of Sicoderus. 91. Sicoderus turnbowi, aedeagus, dorsal view. 92. Sicoderus woodruffi, aedeagus, dorsal view.