Amblycerus dispar ( Sharp, 1885 )

Santos, Aluska Tavares Dos & Ribeiro-Costa, Cibele Stramare, 2019, 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, Zootaxa 4701 (2), pp. 101-148 : 111-117

Amblycerus dispar ( Sharp, 1885)

( Figs 1, 2 , 10 , 23 , 36 , 49 , 63, 64, 79, 92, 98, 117)

Spermophagus dispar Sharp, 1885: 494 (desc., distr.). For review of literature, see Ribeiro-Costa et al. (2018).

Types. The species was recognized through its original description and works by Ribeiro-Costa ( Ribeiro-Costa 1995; Kingsolver & Ribeiro-Costa 1997) that illustrated the male genitalia and examined the type material of A. dispar as well as of its synonyms, with the exception of Spermophagus thomasi . For the synonymical list of A. dispar , see Ribeiro-Costa et al. (2018).

Additional specimens examined. [1 male specimen]: Paraiso CZ\ Pan May 9. 11 \ E A Schwarz; Amblycerus \ dispar\ (Sharp)\ Ribeiro-Costa, C. S. det. 201 [handwritten line]; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( FSCA). [1 female specimen]: Paraiso CZ\ Pan May 9. 11 \ E A Schwarz; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( FSCA). [1 male specimen]: Curaçao ♀ [handwritten symbol]\ West Indies\ 15 MAY 1968; T. E. Rogers\ Coll.; Amblycerus \ dispar Shp. \ det. J. M. Kingsolver; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( FSCA). [1 male specimen]: Curaçao: Hato,\ 4. VIII. 1965 \ B. Malkin col; Amblycerus \ longissimus\ ( Pic, 1902)\ Ribeiro, C. S.\ det.; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 male specimen]: Curaçao: Hato,\ 4. VIII. 1965 ♀ [handwritten symbol]\ B. Malkin col; MZSP; Amblycerus \ longissimus\ ( Pic, 1902)\ Ribeiro, C. S.\ det.; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [6 specimens female]: Curaçao: Hato,\ 4. VIII. 1965 \ B. Malkin col; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 female specimen]: Curaçao: Hato,\ 4. VIII. 1965 \ B. Malkin col; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa\ det. 1993; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 male specimen]: Tabogilla Id\ Feb/6 12 Pan\ Aug. Busck ♀ [handwritten symbol]; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( FSCA). [1 female specimen]: Obidos. Pará.\ 10. 939; 4, 954\ Bondar; MNRJ; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( MNRJ). [1 male specimen]: Brasil, CE, Crateús\ Serra das Almas\ I. R. Vieira col.; Amblycerus \ dispar\ ( Sharp, 1885)\ Ribeiro-Costa, C. S. det. 2000; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 specimens females]: Brasil, CE, Crateús\ Serra das Almas\ I. R. Vieira col.; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 male specimen]: 9; Paraíba \ J. Pessoa\ VII—955\ Pe. Pereira; Amblycerus \ insuturatus\ (Pic)\ det.\ J. M. Kingsolver; Dep. Zool.\ São Paulo; A. insuturatus \ A. wolcotti\ C. S. Ribeiro-Costa det. 1993; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [2 female specimen]: PARAIBA \ Corema VI. 1557 \ Exp. Dep. Zoologia; Amblycerus \ longissimus\ ( Pic, 1902); Dep. Zool.\ São Paulo; Amblycerus \ longissimus\ ( Pic, 1902); C. S. Ribeiro-Costa det. 1993; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 female specimen]: Petrolina—PE\ 7.VIII.98 \ Nilton—leg.; p. h. Umbú\ Spondias \ tuberosa; Amblycerus \ dispar\ ( Sharp, 1885); Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [20 specimens females]: Petrolina—PE\ 7.viii.98 \ Nilton—leg.; p. h. Umbú\ Spondias \ tuberosa; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 male specimen]: Xingu\ Mato Grosso—Brasil\ XI. 1961 \ Alvarenga & Werner; Ex. coleção\ M. Alvarenga; Dep. Zool.\ São Paulo; Amblycerus \ longissimus\ (Pic)\ det. J. M. Kingsolver; Dezembro [label handwritten]; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( DZUP). [1 male specimen]: 7; Braz. Mato Grosso \ Barra do Tapi-\ rape 6. 1—63 \ B. Malkin; CAS; Amblycerus \ longissimus\ ( Pic, 1902)\ Ribeiro, C. S.\ det.; des. gen.; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 female specimen]: Braz. Mato Grosso \ Barra do Tapi-\ rape I-1- 63 \ B. Malkin; CAS; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa det. 1993; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 female specimen]: DPTº ZOOL \ UF—PARANÁ; Sobradinho—BA\ 23/IV/1987 \ Miranda, A. col; Em\ Zizyphus sp.\ Rhamnaceae ; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa\ det. 1991; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 female specimen]: Sobradinho—BA\ 23/IV/1987 \ Miranda, A. col; Em\ Zizyphus sp.\ Rhamnaceae ; Joazeiro (Zizyphus sp—Rhamnaceae\ FRUTOS COLHIDOS NO CHÃO \ Faz. Varginha—Mun. Sobradinho ( BA)\ A. Miranda col. 23 Abril 1987 \ P. Silva cri. Salvador ( BA)—Emerg 25/5/87 \ 2 exemplares; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [3 female specimen]: INST. BIOLG.\ ENTOMOLOGIA\ AGRARIA\ RIO DE JANEIRO; Spermophagus \ longissimus Pic\ Brasil; MNRJ; Amblycerus \ longissimus\ ( Pic, 1902)\ Ribeiro, C. S\ det.; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 male specimen]: INST. BIOLOG.\ ENTOMOLOGIA\ AGRICOLA\ RIO DE JANEIRO; Spermophagus \ longissimus Pic\ Brasil [label handwritten]; MNRJ; Amblycerus \ longissimus\ ( Pic, 1902); Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( MNRJ). [2 specimens males]: Paraguay Concepcion \ Concepcion, 74 msnm, 23º 24’ 23,4” S 57º 26’ 54,3“W 2-\ 3x2005, fluorescent light, B.\ Garcete Coll.; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 female specimen]: Paraguay Concepcion \ Concepcion, 74 msnm, 23º 24’ 23,4” S 57º 26’ 54,3“W 2-\ 3x2005, fluorescent light, B.\ Garcete Coll.; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 male specimen and 1 female]: Coll. Bondar\ 1208; MZSP; Amblycerus \ longissimus\ ( Pic, 1902)\ Ribeiro, C. S.\ det. 96; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [1 female specimen]: Coll. Bondar\ 1208; Spermophagus 1208 \ longissimus Pic; Amblycerus \ longissimus\ Kingsolver det. 86; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( DZUP). [2 male specimen]: CHILE. El\ Transito\ Vallenar\ III region; 5-x-1985 \ J. E. Barriga; in Geoffrea\ decorticans\ Fruits; Amblycerus \ caryoboriformis\ Pic\ det. J. M. Kingsolver; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa det. 19; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. [1 male specimen]: R. A. TUCUMAN\ 11 km. O. de\ Las Cejas\ 1. 14. x. 67 \ coll. L. Stange; Malaise; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán\ TUCUMAN-ARGENTINA; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa det. 1993; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( FML). [1 male specimen]: SGO DEL ESTERO \ 1964\ ex. Sem. Zizyphus\ mistol\? leg.; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán\ TUCUMAN- ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( FML). [1 female specimen]: ARGENTINA \ MISIONES—Geandro\ Alem—(Ext. ExpINTA)\ viii-/ ix – 1967 \ col: D. Havrylenko; ex. sem.\ Cordia trichotoma \ “Peteribi”; Amblycerus \ sp. 2\ A. L. Terán det.; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; ♀; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( FML). [1 male specimen]: R. A. TUCUMAN \ Amaicha\ del Valle\ Rev. 27. III. 67 \ coll. Terán; en sem.\ Geoffroea \ decorticans\ (Pl. nº 25); COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos, 2018. ( FML). [1 male specimen]: ARGENTINA \ Tucumán.\ Tapia\ xii-1976 \ A. Terán coll.; ex. sem.\ Geoffrea\ decorticans; Amblycerus \ caryoborifor\ mis (Pic)\ det. A. L. Terán 19....; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa det. 1993; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 male specimen]: ARGENTINA \ Tucumán.\ Tapia\ xii-1976 \ A. Terán coll.; ex. sem.\ Geoffrea\ decorticans; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTI- NA; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 male specimen]: RA. CORDOBA\ Bosque Alegre\ 25-I- 955\ Cole: F. Monrós; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; Entomofauna\ Subandina; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa det. 1993; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: ARGENTINA \ SANTIAGO DEL \ ESTERO—Que-\ bracho Coto\ XII. 1971 \ Col. Ruiz; ex sem.\ Ziziphus \ mistol; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017; ( FML). [1 female specimen]: R. A. TUCUMAN \ Amaicha del\ Valle\ 20. II. 67 \ coll. Terán; em sem.\ Geoffroea \ decorticans\ Pl. nº 25 E\ Ver. 6. XI. 67; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: AR- GENTINA\ SANTIAGO DEL \ ESTERO—Que-\ bracho Coto\ XII. 1971 \ Col. Ruiz; ex sem.\ Ziziphus \ mistol; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; ♀; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 male specimen]: ARGENTINA \ SAN- TIAGO DEL \ ESTERO—Que-\ bracho Coto\ XII. 1971 \ Col. Ruiz; ex sem.\ Ziziphus \ mistol; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa det. 1993; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 male specimen]: ARGENTINA \ SANTIAGO DEL \ ESTERO \ Les Tigres\ 11. 16. 1. 1970 \ Col. R. Golbach; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [2 female specimens]: ARGENTINA \ SAN- TIAGO DEL \ ESTERO \ Quebracho Coto\?. XII. 1971 \ Col. Ruiz; Ex. Sem.\ Ziziphus mistol \ pl. nº 13 (1971); Amblycerus \ nº2; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [2 female specimens]: ARGENTINA \ SANTIAGO DEL \ ESTERO \ Quebracho Coto\?. XII. 1971 \ Col. Ruiz; Ex. Sem.\ Ziziphus mistol \ pl. nº 13 (1971); Amblycerus \ nº2; Amblycerus \ sp. 4\ det. A. L. Terán 19....; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa det. 1993; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. TUCUMAN \ Amaicha del Valle\ 9-I-1969 \ A. Willink—A. Terán coll.; Entomofauna\ Subandina; COL- ECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. CATAMARCA \ Los Natimientos\ de Abajo; Willink, Terán\ Stange (Malaise)\ 16-31.I.1969; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; Amblycerus \ longissimus\ ( Pic, 1902)\ C. S. Ribeiro-Costa det. 1996; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [4 female specimen]: R. A. CATAMARCA \ Los Nacimientos\ de Abajo; Willink, Terán\ Stange (Malaise)\ 16-31.I.1969; Entomofauna\ subandina; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. TUCUMAN \ Amaicha del\ Valle\ Rev. 20.IV.67 \ coll. Terán; en sem.\ Geoffroea \ decorticans\ (Pl. nº 25); COL- ECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: ARGENTINA \ TUCUMAN \ Amaicha del Valle\ 20.II.1967 \ Col. A. Terán; ex sem. Geoffro-\ ea decorticans\ Pl. nº 25 (1967)\ Ver. 27.XI.1967; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [2 female specimens]: R. A. TUCUMAN \ Amaicha\ del Valle\ Rev. 20.IV.67 \ coll. Terán; en sem.\ Geoffroea \ decorticans\ (Pl. nº 25); COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A: TUCUMAN \ 25. 28. XI. 63 \ Coll. Goibach; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [6 female specimens]: REP. ARGENTINA \ TUCUMAN \ Tapia—XII/1997\ Col. A. L. Terán; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [5 female specimen]: R. A. CATAMARCA \ Los Nacimientos\ de Abajo; Willink, Terán\ Stange (Malaise)\ 16-31.I.1969; Entomofauna\ subandina; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro- Costa, 2017. ( FML). [1 female specimen]: R. A. TUCUMAN \ Amaicha\ del Valle\ Rev. 27. III. 67 \ coll. Terán; en sem.\ Geoffroea \ decorticans\ (Pl. nº 25); COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN- ARGENTINA; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. TUCUMAN \ Amaicha del\ Valle\ 20. II. 67 \ coll. Terán; en sem.\ Geoffroea \ decorticans\ (Pl. nº 25); Amblycerus \ caryoboriformis\ (Pic)\ det. J. M. Kingsolver; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. TUCUMAN \ Amaicha del\ Valle\ Rev. 5. III. 67 \ coll. Terán; en sem.\ Geoffroea \ decorticans\ (Pl. nº 22); COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-AR- GENTINA; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [2 female specimens]: R. A. TUCUMAN \ Amaicha del Valle\ Rev. 31-V-1967 \ coll. Terán; en sem.\ Geoffroea \ decorti-\cans\ (Pl. nº 25); COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. TUCU- MAN\ S. P. de cololae\ xii. 59 \ coll. Terán; ex. sem.\ Geoffroea \ decorti-\cans; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. TUCUMAN \ Amaicha\ del Valle\ Rev. 27. III. 67 \ coll. Terán; en sem.\ Geoffroea \ decorticans\ (Pl. nº 25); COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN- ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. TUCUMAN \ Amaicha del Valle\ Rev. 20. IV. 67 \ coll. Terán; en sem.\ Geoffroea \ decorticans\ (Pl. nº 25); COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [3 female specimen]: AR- GENTINA\ TUCUMAN \ Amaicha del Valle\ 20. II/1967 \ Col. A. L. Terán; en sem.\ Geoffro-\ea decorticans\ Pl. nº 25 (1967); Rev. 27. XI. 1967; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTI- NA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: RA. CATAMARCA \ Rodeo\ 8. 24. I. 1959 \ Coll. R. Golbach; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [2 female specimen]: R. A. SALTA \ Molinos\ 10 kms. S. de Rumibola\ 15-II-1969 \ Barrera-Paganini coll.; Entomofauna\ Subandina; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. CORDOBA\ Carios PAZ\ III. 1951 \ Coll. Foerster; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: R. A. SALTA \ Cachi\ 14-II-1969 \ Barrera- Paganini coll.; Entomofauna\ Subandina; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN- ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 female specimen]: 1362; Spermopha-\ gus\ J. M. Bosq det. 1946; 1362; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGENTINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML). [1 male specimen]: Villa Guilhermina [illegible word]\ [illegible words]\ 18-25 FEBR. 1946\ HAYWARD Y WILLINK; COLECCION\ Fundacion M. Lillo\ 4000 S. M. Tucumán \ TUCUMAN-ARGEN- TINA; FML; Amblycerus dispar \ ( Sharp, 1885)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2017. ( FML).

Diagnosis. Amblycerus dispar is characterized by the following combination of characters: eyes closer to each another anteriorly, ocular index: 9.5 ( Fig. 23 ); median lobe of male genitalia about 4.5 times as long as its greatest width at apical region and internal sac at the apical region without sclerites ( Fig. 92 ). It differs from A. schwarzi by the presence of a 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 the metaventrite (about half the length of the metaventrite in A. schwarzi ), last ventrite almost as long as ventrite IV (almost two times as long as ventrite IV in A. schwarzi ) and internal sac of male genitalia without a pair of sclerite at the apical region (one pair in A. schwarzi ). Amblycerus dispar can be futher separated from A. crassipunctatus by the presence of frontal carina (absent in A. crassipunctatus ), eyes closer to each other anteriorly ( Fig. 23 ) (distant in A. crassipunctatus ), and metaventrite with median sulcus longer than a half the length of metaventrite (about half the length of metaventrite in A. crassipunctatus ).

Redescription. Measurements. BL: 7.9 mm; BW: 4.0 mm.

Integument color ( Fig. 10 ). Red to dark red.

Vestiture ( Figs 10 , 36 , 49 , 79 ). Body covered with light yellow setae. Pronotum with six vaguely dense patches and a median basal line of setae. Elytra with setae uniformly distributed; pygidium with median stripe of setae.

Head ( Fig. 23 ). Eyes approximate anteriorly, ocular index: 9.5, ocular sinus 1.3 and postocular lobe about 0.4 the eye length. Frons covered with fine and moderately dense coarse punctures, with frontal carina. Antennae reaching anterior margin of hindcoxae, serrate on antennomeres 4–10; antennomere 7 about 1.5 longer than wide, last antennomere subelliptic. Frontoclypeal suture distinct. Clypeus covered with moderately coarse punctures, except near apex, where it is smooth. Labrum with few fine coarse punctures on basal margin. Prothorax ( Figs 36 , 49 ). Pronotum trapezoidal with lateral margins slightly curved, covered entirely by coarse and dense punctures ( Fig. 49 ); lateral carina almost reaching posterior margin of pronotum; cervical boss with three setae; cervical sulcus conspicuous behind eyes. Prosternal process longer than anterior coxae, gently arched between coxae and slightly constricted between coxae. Meso- and metathorax ( Figs 2 , 10 , 36 , 63, 64). Scutellum about 1.7 longer than wide, tridentate, median tooth longer than the lateral ones ( Figs 2 , 63, 64). Elytra with striae strongly impressed, at basal third striae 1–6 with punctures more isolated, 6–7 striae fused apically ( Fig. 10 ). Metepisternum without coarse punctures; metepisternal sulcus with transverse axis gently oblique or straight; the longitudinal axis about half the lenght of metepisternum. Metaventrite not prominent in lateral view, without punctures and median sulcus longer than a half the lenght of metaventrite ( Fig. 36 ). Metacoxae with coarse punctures. Hindtibia with lateral spur about 2.8 times the length of median spur. First tarsomere about 1.6 the length of the lateral spur and 4.5 times the length of median spur. Abdomen ( Figs 36 , 79 ). Ventrites with moderately coarse punctures ( Fig. 36 ); last ventrite almost as long as ventrite IV. Pygidium with apical margin rounded and with coarse and dense punctures ( Fig. 79 ).

Male genitalia ( Figs 92 , 98 ). Median lobe of male genitalia about 4.5 times as long as its greatest width at apical region ( Fig. 92 ); ventral valve with lateral margins concave and acuminate apex; dorsal valve subtriangular, with lateral margins almost straight. Internal sac in the apical region without sclerites, some small spines dispersed ( Fig. 92 ). Median region with J-shaped unpaired sclerite, two vertical lines of denticles, two groups of denticles, and two laminar hat-shaped sclerites with denticles at apex. Basal region with several small denticles close to ejaculatory duct. Tegmen with deep, rounded emargination between the enlarged lateral lobes ( Fig. 98 ). Female. Similar to male except ventrite V not emarginate.

Distribution ( Fig. 117 ). Curaçao, Honduras, Panama, Venezuela, French Guiana, Brazil (Pará, Mato Grosso, Ceará, Paraíba, Pernambuco, Bahia, Rio de Janeiro), Peru, Paraguay (new country record), Argentina and Chile.

Life History. According to Johnson et al. (2001), the larvae of A. dispar feed only on one seed during their entire development, while in other species of the genus it is common to find one larva feeding on several seeds during their development.

Host Plants ( Tab. I ). Fabaceae : Geoffroea decorticans (Gillies ex Hook. & Arn.) Burkart. Rhamnaceae : Sarcomphalus mistol (Griseb.) Havenschild (new record) Ziziphus joazeiro Mart. ; Ziziphus sp. Anacardiaceae : Spondias tuberose Arruda.

Figures

FIGURES 1–8. Amblycerus dispar: 1. dorsal; 2. scutellum. A. taeniopygus: 3. head, A. insuturatus: 4. lateral. A. alternatus: 5. detail of coarse punctures on median region of pronotum; 6. detail of coarse punctures on median region of pygidium. A. crassipunctatus: 7–8. Male genitalia: 7. Median lobe; 8. Tegmen. Scale bars = 1.0 mm (Figs 5, 7, 8) and 0.25 mm (Fig. 12).

FIGURES 9–14. Dorsal, group dispar: 9. Amblycerus crassipunctatus, 10. A. dispar, 11. A. insuturatus, 12. A. schwarzi, 13. A. taeniopygus and 14. Amblycerus goianiensis Santos & Ribeiro-Costa, sp. n. Scale bars = 1.0 mm.

FIGURES 22–27. Head, group dispar: 22. Amblycerus crassipunctatus, 23. A. dispar, 24. A. insuturatus, 25. A. schwarzi, 26. A. taeniopygus, 27. Amblycerus goianiensis Santos & Ribeiro-Costa, sp. n. Scale bars = 1.0 mm.

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 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 91–96. Male genitalia, median lobe, group dispar: 91. Amblycerus crassipunctatus, 92. A. dispar, 93. A. insuturatus, 94. A. schwarzi, 95. A. taeniopygus and 96. Amblycerus goianiensis Santos & Ribeiro-Costa, sp. n. Scale bars = 0.25 mm and 500 ʯm.

FIGURES 78–83. Pygidium, group dispar: 78. Amblycerus crassipunctatus, 79. A. dispar, 80. A. insuturatus, 81. A. schwarzi, 82. A. taeniopygus and 83. Amblycerus goianiensis Santos & Ribeiro-Costa, sp. n. Scale bars = 1.0 mm.

FIGURES 97–102. Male genitalia, tegmen, group dispar: 97. Amblycerus crassipunctatus, 98. A. dispar, 99. A. insuturatus, 100. A. schwarzi, 101. A. taeniopygus and 102. Amblycerus goianiensis Santos & Ribeiro-Costa, sp. n. Scale bars = 0.25 mm.

FIGURES 117–118. FIGURE 117. Map with the geographical distribution of A. crassipunctatus and A. dispar. Leaked symbols refer to bibliography data. FIGURE 118. Map with the geographical distribution of A. insuturatus and A. schwarzi. Leaked symbols refer to bibliography data.