Cossonine weevils in Dominican amber (Coleoptera: Curculionidae) Author Davis, S. R. Author Engel, M. S. text Linzer biologische Beiträge 2007 2007-12-18 39 2 803 820 journal article 10.5281/zenodo.13135896 0253-116X 13135896 Caulophilus swensoni nov.sp. ( Figs 13-17 , 23-24 ) H o l o t y p e: USNM 502877 (= Woodruff #5660), amber, Dominican Republic , Early Miocene (Burdigalian). P a r a t y p e: USNM 502666 (= Woodruff #5439), amber, Dominican Republic , Early Miocene (Burdigalian). D i a g n o s i s:Rostrummoreorlessequalinlengthtolengthofpronotum ( Figs 23- 24 ). Procoxae situated from posterior margin of prosternum by slightly less than coxal diameter and from each other by one length of a coxa ( Fig. 17 ). Elytra with approximately 10-11 striae. Sparse, elongate setae on apical end of elytra ( Fig. 23 ). D e s c r i p t i o n: Total body length (including rostrum) ca. 3.77 mm ; maximal width ca. 0.75 mm ; elytral length ca. 1.69 mm . Integument dark brown to black (as preserved). Compound eyes subcircular, length approximately equal to width; interocular distance approximately equal to width of rostrum in dorsal view. Rostrum densely punctate, punctures minute, separated by distance 1-2✕ puncture diameter; rostrum more or less subequal to length of pronotum; ventral margin broadly and uniformly curved along entire length in lateral view ( Figs 13-14 ); rostrum width subequal along length, widened slightly apically in dorsal view; rostrum bearing two long setae on inner apical surface. Antenna inserted immediately after mid-length of rostrum; scrobe long, extending just before compound eye; scape just reaching anterior margin of compound eye; scape slightly more than one-half length of rostrum; funicle narrow ( Fig. 15 ), enlarging to a distinct, setose club. Vertex crenulate and punticulate. Pronotum glabrous, length approximately 1.2✕ width; anterior portion narrower than posterior portion; small, shallow punctures present, punctures separated by distance 1-2✕ puncture diameter; lateral margins broadly rounded. Prosternum with shallow depression between procoxae; small, shallow punctures present, punctures separated by distance 1-2✕ puncture diameter. Scutellum loosely triangular with corners rounded, small, length subequal to anterior basal width. Elytra each with approximately 10-11 striae; punctures of elytral striae small and shallow, separated by distance approximately 0.5-1✕ puncture diameter; humeri 807 subquadrate; a sparse covering of long setae at posterior quarter of elytra, setae approximately one-third to nearly one-half length of antennal scape. Metasternum and abdominal ventrites puncticulate. Femora widest at mid-length and puncticulate; profemora enlarged ( Fig. 16 ); tibiae laterally expanded apically; apical tibial unci at outer angle large, approximately equal to length of tarsomere IV; a small denticle present on opposite side of uncus on inner angle, length equal to or slightly less than pretarsal claw length. E t y m o l o g y: The specific epithet is a matronymic honoring Ms. Stephanie J. Swenson, distinguished coleopterist. C o m m e n t s: This species is very similar to C . falini in overall body form, the elongate rostrum, and the presence of long setae apically on the elytra. Caulophilus swensoni can be differentiated from C . falini , however, by its larger body size, the longer scape length, the greater length of the pronotum in relation to the width of the pronotum, and the greater number of elytral striae.