Sicoderus Vanin

Anderson, Robert S., 2018, The genus Sicoderus Vanin 1986 (Coleoptera: Curculionidae: Curculioninae: Erodiscini) in the West Indies, Zootaxa 4497 (3), pp. 301-345 : 304

Key to West Indian Species of Sicoderus Vanin

1 Elytra with alternate interstriae distinctly elevated; interstria 5 towards the base with prominent tubercle which grades posteriorly into the raised interstria (figs. 3, 4); Dominican Republic (Pedernales)......................... S. alternatus n. sp.

1’ Elytra with all interstriae uniformly flat, not raised or convex................................................... 2

2 Elytra with humeri present, weakly to strongly developed (e.g., fig. 17, 53, 67)..................................... 3

2’ Elytra with humeri absent, basal corners of elytra not at all angulate (e.g., figs. 1, 15, 51)............................ 10

3 Elytra with humeri weakly developed, greatest width of elytra at about midlength and distinctly wider than width at humeri (figs. 17, 53, 77)...................................................................................... 4

3’ Elytra with humeri strongly developed, greatest width of elytra at or near humeri, width at midlength of elytral at most only slightly wider than width at humeri (figs. 39, 49, 65, 67)....................................................... 7

4 Species from USA (Florida) and Bahamas; aedeagus as in fig. 83................................................ 5

4’ Species from Dominican Republic; aedeagus as in figs. 23, 59.................................................. 6

5 Pronotum with punctures fine, individually distinct dorsally on disc, larger and deeper laterally, forming weak lateral striolae (Florida, Bahamas [most])........................................................... S. tinamus LeConte (part)

5’ Punctures large and deep dorsally and laterally, forming distinct dorsal and lateral striolae ( Bahamas; Crooked Island)...................................................................................... S. tinamus LeConte (part)

6 Rostrum length subequal to, to slightly shorter than elytral length in male (0.94–1.02), shorter than elytral length to very slightly longer in female (0.97–1.08); male with ventrite 5 of abdomen with impression small, shallow, and confined to the posterior half of the ventrite; aedeagus as in fig. 23; Dominican Republic (Hato Mayor, La Altagracia, Samaná, San Cristobal, San Pedro de Macoris).................................................................. S. championi Vanin