Amblycerus dispar,

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 record, Zootaxa 4701 (2), pp. 101-148: 106

publication ID

https://doi.org/10.11646/zootaxa.4701.2.1

publication LSID

lsid:zoobank.org:pub:7BD270C5-50AA-4CC0-8101-DB46948A0C81

persistent identifier

http://treatment.plazi.org/id/285D3106-FFD0-EE04-FF07-FDECFA09D5BD

treatment provided by

Plazi

scientific name

Amblycerus dispar
status

 

Key to the species of the dispar  group based on males

1. Pronotum and elytra covered with grayish setae ( Figs 12View FIGURES 9–14, 51View FIGURES 48–53). Metepisternum with conspicuous coarse punctures ( Fig. 38View FIGURES 35–40). Hind tibia lateral spur about three times the length of the median spur. Pygidium with sparse coarse moderate punctures ( Fig. 81View FIGURES 78–83).......................................................................... A. schwarzi Kingsolver, 1980 

1’. Pronotum and elytra covered with yellowish or orange setae ( Figs 11, 13, 14View FIGURES 9–14). Metepisternum with coarse punctures of smaller size, not so conspicuous ( Fig. 37View FIGURES 35–40). Hind tibia with lateral spur about two times the length of the median spur ( Figs 35–37, 39–40View FIGURES 35–40). Pygidium with dense coarse punctures ( Figs 78–80, 82–83View FIGURES 78–83)............................................. 2

2. Pronotum with coarse punctures covering all the surface ( Figs 49, 51View FIGURES 48–53)........................................... 3

2’ Pronotum with coarse punctures covering only the lateral areas ( Figs 48, 50, 52, 53View FIGURES 48–53)................................ 4

3. Eyes approximate anteriorly (ocular index: 9.5) ( Fig. 23View FIGURES 22–27). Median lobe of male genitalia about 4.5 times as long as its greatest width at apical region ( Fig. 92View FIGURES 91–96). Apical region of internal sac without sclerites ( Fig. 92View FIGURES 91–96)............ A. dispar ( Sharp, 1885) 

3’ Eyes distant from each other anteriorly (ocular index: 3.5) ( Fig. 22View FIGURES 22–27). Median lobe of male genitalia about 3.7 times as long as its greatest width at apical region ( Fig. 91View FIGURES 91–96). Apical region of internal sac with one pair of sclerites ( Fig. 91View FIGURES 91–96)................................................................................... A. crassipunctatus Ribeiro-Costa, 1999c 

4. Pronotum with setae homogeneously distributed ( Fig. 50View FIGURES 48–53)................................. A. insuturatus ( Pic, 1902) 

4’ Pronotum with setae forming tufts ( Fig. 53View FIGURES 48–53)................................................................ 5

5. Integument dark brown ( Fig. 13View FIGURES 9–14). Male genitalia with the apical region of internal sac without sclerites ( Fig. 95View FIGURES 91–96).................................................................................. A. taeniopygus Ribeiro-Costa, 1999c 

5’ Integument light brown ( Fig. 14View FIGURES 9–14). Male genitalia with the apical region of internal sac with a pair of sclerites ( Fig. 96View FIGURES 91–96).............................................................. Amblycerus goianiensis Santos & Ribeiro-Costa  , sp. n.