Rearrangements in some species groups of Amblycerus Thunberg, 1815 (Coleoptera: Chrysomelidae: Bruchinae) including keys, description of a new species, new host plant and distributional records Author Santos, Aluska Tavares Dos Author Ribeiro-Costa, Cibele Stramare text Zootaxa 2019 2019-11-27 4701 2 101 148 journal article 24790 10.11646/zootaxa.4701.2.1 bc19d052-353e-4e68-ab95-41e4eaaeac02 1175-5326 3557871 7BD270C5-50AA-4CC0-8101-DB46948A0C81 Amblycerus schwarzi Kingsolver, 1970 ( Figs 12 , 25 , 38 , 51 , 67, 68, 81, 94, 100, 118) Amblycerus schwarzi Kingsolver, 1970: 477 (desc., type , distr., key, host); Johnson & Kingsolver, 1981: 410 (distr.); Udayagiri & Wadhi, 1989:14 (cat., distr., host.); Johnson & Siemens, 1991: 165 (bio.); Romero et al . 1996: 86 , 87, 158 (distr., host., key); Marin & Kingsolver, 1997 (host., new record distr.); Romero et al . 2002 (phyl.). Types examined . Paratype deposited in DZUP, 1 male , with labels: 17.iv—26. viii ,\ 1938. Oxf. Um.\ CAYMAN IS.\ Bio. Exped. coll. by C. B. Lewis, G. H. Thompson.; 13.v.1938 .\ Grand\ Cayman,\ East end of. East End.\ Light trap A.; PARATYPE [label with blue border]\ Amblycerus \ schwarzi\ Kingsolver; DZUP\ 130646 ; Amblycerus schwarzi \ Kingsolver, 1970 \ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018 . Paratype deposited in DZUP, 1 female , with labels: Cayamas\ [illegible] Cuba ; E A Schwarz\ Collector; ♀ ; PARATYPE [label with a blue border]\ Ambly- cerus\ schwarzi\ Kingsolver‘70; DZUP\ 130645 ; Amblycerus schwarzi \ Kingsolver, 1970 \ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018 . Paratype deposited in DZUP, 1 male , with labels: Randia mitis\ Sauri Finca\ Ponce, P. R \ Coll. 8 Aug 31 \ R. G. Oakley; Randis mitis\ Flower, 88. 33\ Ponce PR.\ RG Oakley\ S. J. 4515; PARATYPE [label with blue border]\ Amblycerus \ schwarzi\ Kingsolver; DZUP\ 130644 ; Amblycerus schwarzi \ Kingsolver, 1970 \ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018 ; Depository: DZUP. FIGURES 35–40. Lateral. group dispar : 35. Amblycerus crassipunctatus , 36. A. dispar , 37. A. insuturatus , 38. A. schwarzi , 39. A. taeniopygus and 40. Amblycerus goianiensis Santos & Ribeiro-Costa , sp. n. Scale bars = 1.0 mm. FIGURES 41–44. Lateral, group spondiae : 41. A. alternatus , 42. A. cuernavacensis , 43. A. spondiae and 44. A. vitis . Scale bars = 1.0 mm. FIGURES 45–47. Lateral, species reallocated: 45. A. eustrophoides , 46. A. serieguttatus and 47. A. simulator . Scale bars = 1.0 mm. Additional specimens examined . [ 1 male specimen]: USA : FLA: Monroe Co.\ N. Big Pine Key\ Wastson’s Hammock\ 29.VIII.95 , Manchineel\ nuts, S. Peck, 95-64; Amblycerus schwarzi \ Kingsolver, 1970 \ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018 . ( FSCA ). [ 1 female specimen]: USA : FLA: Monroe Co.\ N. Big Pine Key\ Wastson’s Hammock\ 29. VIII. 95 , Manchineel\ nuts, S. Peck, 95-64; First Record [label with green border]\ North American\ Amblycerus \ schwarzi Kingsolver \ det. JMK 95; Amblycerus schwarzi \ Kingsolver, 1970 \ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018 . ( FSCA ). [ 1 female specimen]: BAHAMAS : Great Inagua \ South Bay road; blacklight\ trap in Coccothrinax forest\ 10-VII-2007 ; [same label] colls. Thomas,\ Turnbow & Smith; Amblycerus schwarzi \ Kingsolver, 1970 \ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018 . ( FSCA ). [ 1 female specimen]: CUBA La Vene-\ ciana, Guanabo\ C. Habana xii.95 \ col. JA. Genaio (?); Emerged from\ Tropical almond\ Terminalia ; Terminalia \ catappa L.; Amblycerus \ schwarzi\ det. Kingsolver\ J. M. Kingsolver; Amblycerus schwarzi \ Kingsolver, 1970 \ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018 . ( FSCA ). [ 1 female specimen]: DOMINICAN REPUBLIC :\ Prov. Pedernales ,\ Cabo Rojo, Alcoa\ 3-VII-98 R. Woodruff\ & R. Baranowski\ blacklight trap; Amblycerus schwarzi \ Kingsolver, 1970 \ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018 . ( FSCA ). FIGURES 48–53. Pronotum, group dispar : 48. Amblycerus crassipunctatus . 49. A. dispar . 50. A. insuturatus . 51. A. schwarzi . 52. A. taeniopygus and 53. Amblycerus goianiensis Santos & Ribeiro-Costa , sp. n. Scale bars = 1.0 mm. FIGURES 54–57. Pronotum, group spondiae : 54. A. alternatus , 55. A. cuernavacensis , 56. A. spondiae and 57. A. vitis . Scale bars = 1.0 mm. FIGURES 58–60. Pronotum, species reallocated: 58. A. eustrophoides . 59. A. serieguttatus and 60. A. simulator . Scale bars = 1.0 mm. Measurements . BL: 7.8 mm; BW: 4.0 mm. Diagnosis ( Figs 81 , 94 , 100 ) . Amblycerus schwarzi is characterized by the following combination of characters: eyes strongly prominent laterally, closer to each other anteriorly, ocular index: 10.0; pronotum and elytra covered with grayish setae; metepisternum with coarse, conspicuous punctures; hind tibia with lateral spur about 3.0 longer than median spur, tarsomere I about 4.8 times the length of median spur; pygidium with coarse and sparse punctures ( Fig. 81 ); male genitalia, internal sac in the apical region with one pair of subcylindrical sclerites ( Fig. 94 ). Amblycerus schwarzi is very similar externally and in relation to the genitalia to A. dispar , as both have eyes close anteriorly ( Figs 23, 25 ) and median lobe with dorsal valve ( Figs 92, 94 ) subtriangular and internal sac with unpaired “J sclerites. Amblycerus dispar differs from A. schwarzi by the presence of frontal carina (absent in A. schwarzi ), cervical boss with three setae (two setae in A. schwarzi ), metaventrite with median sulcus longer than a half the length of metaventrite (about half the length of metaventrite in A. schwarzi ), ventrite V almost as long as ventrite IV (almost twice as long as the ventrite IV in A. schwarzi ) and internal sac of male genitalia without pair of sclerite in the apical region (one pair in A. schwarzi ). Distribution ( Fig. 118 ) . United States , Virgin Islands , Grand Cayman Island, Bahamas ( new country record ), Puerto Rico , Cuba , Dominican Republic ( new country record ), Jamaica , Curaçao and Saint Croix . Life History . According to Kingsolver (1970) , the wide distribution and host diversity of A. schwarzi indicates a high degree of adaptability and probably a high rate of anthropic introduction. One noteworthy fact is that among the genera of plants consumed by A. schwarzi , the seeds of Hippomane and Ricinus are poisonous to warm-blooded animals. Host Plants ( Tab. I ) . Combretaceae : Terminalia catappa L. Euphorbiaceae : Hippomane mancinella L., Ricinus communis L. Verbenaceae : Tectona grandis L. Rubiaceae : Guettarda sp., Randia aculeata var. aculeata .