Consolidation of Aniops Casey, Psiona Casey, Preglyptobaris Bondar and Prospoliata Hustache with Chryasus Champion (Coleoptera, Curculionidae, Baridinae) and descriptions of new species Author Prena, Jens text Zootaxa 2024 2024-08-02 5492 1 1 24 http://dx.doi.org/10.11646/zootaxa.5492.1.1 journal article 10.11646/zootaxa.5492.1.1 1175-5326 13211499 35055BD1-1925-4947-91BA-5E1CC841071A Synopsis of named species Chryasus bicolor ( Bondar, 1946 ) comb. n. (from Preglyptobaris ) = Prospoliata bicolorata Hustache, 1950 syn. n. Chryasus bicuspis Prena sp. n. Chryasus bruniceps ( Bondar, 1946 ) comb. n. (from Sphenobaris , originally Amphibaris ) Chryasus carinulosus ( Casey, 1922 ) comb. n. (from Psiona ) Chryasus cavernosus Champion, 1908 Chryasus clunis Prena sp. n. Chryasus densus ( Casey, 1922 ) comb. n. (from Psiona ) = Psiona opaca Casey, 1922 syn. n. Chryasus macer Prena sp. n. Chryasus montyi Prena sp. n. Chryasus multistriatus ( Chevrolat, 1880 ) comb. n. (from Psiona , originally Baris ) Chryasus nimius Prena sp. n. Chryasus persimilis Prena sp. n. Chryasus plagiatus Champion, 1908 Chryasus pomponella Prena sp. n. Chryasus sculpturatus ( Casey, 1922 ) comb. n. (from Aniops ) Chryasus taironius Prena sp. n. Chryasus talamanca Prena sp. n. Chryasus wappesi Prena sp. n. 1 Pronotum humped, highly arched in lateral view; body length 4.3–6.4 mm ....................................... 2 - Pronotum not humped; body length 1.9–3.4 mm ............................................................ 6 2 Elytron or pronotum reddish............................................................................ 3 - Elytron and pronotum black............................................................................ 5 3 Pronotum red with subtly vermiculate disc, procoxae separated by distinctly less than their own width................................................................................................... 1. C. bicolor (Bondar) - Pronotum black with interspaces modified as pronounced ridges, procoxae separated by their own width ( Fig. 15 )........ 4 4 Elytron entirely reddish brown, pronotum less humped, male metaventrite projected anteriorly and deeply cleft by discrimen..................................................................................... 2. C. bicuspis sp. n. - Elytron reddish brown with broad yellow ochre fascia in middle, pronotum excessively humped, male metaventrite tumid and not cleft by discrimen............................................................... 3. C. pomponella sp. n. 5 Body slender, elytra almost 1.4x longer than wide; Costa Rica ................................... 4. C. nimius sp. n. - Body stout, elytra less than 1.3x longer than wide; northeastern South America..................... 5. C. wappesi sp. n. 6 Pronotal disc with punctation subsumed in narrow furrows, interspaces forming oblique vermicular ridges.............. 7 - Pronotal disc with punctation mostly separate, interspaces forming at most a few short oblique ridges................. 15 7 Body short rhomboidal, greatest width at humeri and rapidly narrowing from there; distance between procoxae subequal to distance between procoxa and anterior pronotal constriction ( Fig. 14 )............................................ 8 - Body elongate, more gently or not at all narrowing in basal third behind humeri; distance between procoxae shorter than distance between procoxa and anterior pronotal constriction ( Fig. 13 ).......................................... 10 8 Elytron black with reddish vitta on interstriae 2–6................................................ 6. C. plagiatus - Integument plain brown................................................................................ 9 9 Male with antenna inserted in distal third of rostrum; Brazil ....................................... 7. C. bruniceps - Male with antenna inserted at mid-length of rostrum......... [unassigned specimens from Costa Rica ( Fig. 33 ) and Brazil ] 10 Integument glossy, microreticulation inconspicuous; pronotum with punctation completely subsumed in longitudinal channels; elytral disc with pronounced, angularly raised interstriae..................................................... 11 - Integument matte, microreticulate; pronotum with punctation vestigial but present; elytral disc with less pronounced, often only finely ridged interstriae............................................................................... 12 11 Body slightly stouter, red and/or black, elytron with ochre median fascia; pronotum proportionately larger and wider......................................................................................... 8. C. talamanca sp. n. - Body very slender, black; pronotum notably small............................................. 9. C. macer sp. n. 12 Pronotum subconical; eyes bulging; integument red, elytron with indistinct subbasal fascia; Lesser Antilles ( Guadeloupe )....................................................................................... 10. C. multistriatus - Pronotum with sides convex; eyes flat; elytron without fascia; distribution continental............................. 13 13 Elytron reddish ochre, pronotum and ventrites darker; Colombia .............................. 11. C. taironius sp. n. - Integument plain brown; distribution different............................................................. 14 14 Integument chestnut brown; total length 2.6 mm ; Brazil ........................................ 12. C. carinulosus - Integument darker, fuscous; total length 2.9–3.3 mm ; Costa Rica ................................ 13. C. montyi sp. n. 15 Pronotal disc and elytral striae coarsely punctate........................................................... 16 - Pronotal disc and elytral striae shallowly punctate.......................................................... 17 16 Pronotal collar with deep pits separated by longitudinal ridges; Central America..................... 14. C. cavernosus - Pronotal collar without deep pits; Mato Grosso ( Brazil )............................................. 15. C. densus 17 Appendages comparatively long, rostrum almost 3x as long as eye; total length 2.1–2.8 mm ; Central America.......... 18 - Appendages shorter, rostrum 2x as long as eye; total length 1.8–2.5 mm ; Central and South America.................. 19 18 Male ventrite 5 strikingly tumid; pronotum and elytron with microscopic setae; femoral denticles developed; Cordilleras de Guanacaste and Tilarán in Costa Rica ...................................................... 16. C. clunis sp. n . - Male ventrite 5 not tumid.................. [unassigned specimens from Costa Rica and elsewhere in Central America] 19 Elytra with sides converging from basal third to apex; femoral denticles distinct; Costa Rica ....... 17. C. persimilis sp. n. - Elytra subparallel in basal half; femoral denticles obsolete; South America...................................... 20 20 Pronotum and elytron with white setae about 5–6x longer than wide; Mato Grosso , Brazil ............ 18. C. sculpturatus - Pronotum and elytron with shorter setae............ [unassigned specimens from Brazil ( Fig. 47 ) and Colombia ( Fig. 48 )]