Sennius abbreviatus

Viana, Jéssica Herzog & Ribeiro-Costa, Cibele Stramare, 2013, Review of the largest species group of the New World seed beetle genus Sennius Bridwell (Coleoptera: Chrysomelidae), with host plant associations, Zootaxa 3736 (5), pp. 501-535 : 506-507

publication ID	https://doi.org/ 10.11646/zootaxa.3736.5.5
publication LSID	lsid:zoobank.org:pub:961BBB7C-5E41-43B5-939A-F0327ED3D879
DOI	https://doi.org/10.5281/zenodo.6148082
persistent identifier	https://treatment.plazi.org/id/B22687F3-EC7A-FF8B-FF5F-FAB1FA104B22
treatment provided by	Plazi
scientific name	Sennius abbreviatus
status

Treatment

Key to the species of Sennius abbreviatus group

1 Integument of elytra completely black.................................................................... 2

- Integument of elytra red-orange to dark brown; if black, with maculae........................................... 6

2 Elytra with horizontal, wide and sparse strip of setae covering more than three quarters of anterior region ( Fig. 75 View FIGURES 75 – 82 ).............................................................................. S. rufomaculatus (Motschulsky, 1874) .

- Elytra with horizontal, narrow and dense strip of setae covering less than half of anterior region...................... 3

3 Elytra at 3rd strial interval with white setae on mesoapical region, except at extreme apex........................... 4

- Elytra at 3rd strial interval with white setae medially or absent.................................................. 5

4 Elytra with rounded patch of pale setae medially ( Fig. 9 View FIGURES 9 – 12 ).................................... S. bondari (Pic, 1929) .

- Elytra with white and gold setae forming horizontal strip medially ( Fig. 47 View FIGURES 47 – 54 )... S. leucostauros Johnson & Kingsolver, 1973 .

5 Elytra with white setae forming zig zag strip ( Fig. 55 View FIGURES 55 – 62 )...................................... S. lojaensis (Pic, 1933) .

- Elytra with white setae forming horizontal strip wider medially ( Fig. 72 View FIGURES 72 – 74 )........ S. nappi Ribeiro-Costa & Reynaud, 1998 .

6 Integument of elytra without maculae.................................................................... 7

- Integument of elytra with maculae........................................................................ 9

7 Elytra with homogeneous golden and brown setae except at 1st and 2nd interstices with white setae ( Fig. 29 View FIGURES 29 – 37 )............................................................................................. S. lawrencei Johnson, 1977 .

- Elytra with horizontal irregular or regular strip of pale setae on submedian region.................................. 8

8 Elytra with regular horizontal strip of pale setae on submedian region ( Fig. 100 View FIGURES 100 – 107 )........................ S. vivi sp. nov.

- Elytra with patches forming an irregular horizontal strip of pale setae on submedian region ( Fig. 21 View FIGURES 21 – 28 )...... S. flinte sp. nov.

9 Elytral setae evenly sparsely distributed or only dense patch at base of 3rd and 5th interstices.......................... 10

- Elytral setae unevenly distributed with strip or wide dense patch of pale setae at anterior region...................... 13

10 Base of 3rd and 5th interstices with dense patch of setae or integument with pale to dark brown maculae ( Fig. 75 View FIGURES 75 – 82 )................................................................................ S. rufomaculatus (Motschulsky, 1874) .

- Base of 3rd and 5th interstices without dense patch of setae or integument with red-orange maculae..................... 11

11 Pronotum with denser setae laterally ( Fig. 1 View FIGURES 1 – 8 )........................................... S. abbreviatus (Say, 1824) .

- Pronotum with evenly distributed setae.................................................................. 12

12 Elytra in general with vertically elongated maculae ( Fig. 13 View FIGURES 13 – 20 ). Male genitalia with hinge sclerites thin ( Fig. 19 View FIGURES 13 – 20 ).............................................................................. S. durangensis Johnson & Kingsolver, 1973 .

- Elytra with horizontally elongated maculae ( Fig. 63 View FIGURES 63 – 71 ). Male genitalia with hinge sclerites with apex broader ( Fig. 70 View FIGURES 63 – 71 )....................................................................................... S. medialis (Sharp, 1885) .

13 Elytra with vertical strip of pale setae along suture......................................................... 14

- Elytra with horizontal stripor rounded patch of pale setae on submedian region................................... 15

14 Elytron without pale setae on 3rd strial interval ( Fig. 29 View FIGURES 29 – 37 )................................. S. lawrencei Johnson, 1977 .

- Elytron with pale setae on 3rd strial interval ( Fig. 92 View FIGURES 92 – 99 )................................... S. trinotaticollis (Pic, 1930) .

15 Integument of elytra with regularly rounded red-orange maculae and patch of pale setae ( Fig. 63 View FIGURES 63 – 71 ).. S. medialis (Sharp, 1885) .

- Integument of elytra with horizontal strip or irregularly shaped red-orange to dark brown maculae with horizontal strip of pale setae.............................................................................................. 16

16 Disc of pronotum with dense patch of setae ( Fig. 38 View FIGURES 38 – 46 ).................................... S. lebasi (Fåhraeus, 1839) .

- Disc of pronotum with evenly and sparsely distributed setae................................................. 17

17 Male genitalia with hinge sclerites strongly curved and thin, but not reaching apex of mass of spicules on subapical region ( Fig. 90 View FIGURES 83 – 91 ).............................................................. S. transversesignatus (Fåhraeus, 1839) .

- Male genitalia with hinge sclerites moderately curved with apex and base broader, reaching apex of mass of spicules on sub- apical region ( Fig. 73 View FIGURES 72 – 74 )................................................ S. nappi Ribeiro-Costa & Reynaud, 1998 .