Canthonella Chapin,

Ivie, Michael A. & Philips, Keith, 2008, Three new species of Canthonella Chapin from Hispaniola, with new records and Nomenclatural changes for West Indian dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae), Zootaxa 1701, pp. 1-14: 7-8

publication ID

http://doi.org/ 10.5281/zenodo.180818

persistent identifier

http://treatment.plazi.org/id/03BC87DC-AF3B-FFB6-FF68-F8D0FA77490F

treatment provided by

Plazi

scientific name

Canthonella Chapin
status

 

Key to West Indian Canthonella Chapin 

(Modified from Matthews 1966, Ivie & Philips 1990)

1. Protibia with 3 teeth on outer margin........................................................................................................... 2

- Protibia with 2 teeth on outer margin........................................................................................................... 3

2. Elytral interstriae uneven in height, especially on declivity; protibia very narrow; Puerto Rico and the Virgin Islands............................................................................................................ Canthonella parva  Chapin

- Elytral interstriae flat, even in height; protibia widened apically; Hispaniola ............................................... ..................................................................................................... Canthonella constans  Matthews ( Fig. 22View FIGURES 19 – 22)

3. Elytral macula yellow-orange, reaching base of elytron ( Fig. 9View FIGURES 1 – 9. 1 – 3); Hispaniola.............................................. 4

- Elytral macula whitish-yellow, not reaching base of elytron, with at least a narrow black margin at base ( Figs. 7, 8View FIGURES 1 – 9. 1 – 3); Cuba and Hispaniola................................................................................................................. 5

4. Mesad edge of elytral spot reaching or nearly reaching suture; eighth elytral stria strongly punctate .......... ..................................................................................................... Canthonella isabellae  Matthews ( Fig. 23View FIGURES 23 – 25)

- Mesad edge of elytral spot reaching to 2 nd stria; eighth elytral stria impunctate............................................ ....................................................................................................... Canthonella sikesi  new species ( Fig. 21View FIGURES 19 – 22)

5. Elytral spot ending at or laterad to 3 rd stria ( Figs 7, 8View FIGURES 1 – 9. 1 – 3); labium rounded, truncate or emarginate anteriorly ( Figs. 1, 2View FIGURES 1 – 9. 1 – 3 and Ivie & Philips 1990, Fig. 1View FIGURES 1 – 9. 1 – 3); Cuba and Hispaniola................................................................ 6

- Elytral spot extending at least half-way across 2 nd interstia ( Ivie & Philips 1990, Figs. 3, 4View FIGURES 1 – 9. 1 – 3); labium obtusely produced anteriorly; Hispaniola..................................................................................................... 8

6. Labium narrow, subtruncate ( Matthews 1966, Fig. 84); Cuba..................... Canthonella pygmaea  (Harold)

- Labium broader, truncate or emarginate ( Figs. 1, 2View FIGURES 1 – 9. 1 – 3); Hispaniola................................................................. 7

7. Elytral ground color castaneous, darker pitchy around elytral spot and along suture, pronotal disc usually castaneous with pitchy base; labium truncate apically ( Fig. 1View FIGURES 1 – 9. 1 – 3)...................................................................... ................................................................................................. Canthonella jarmilae  new species ( Fig. 19View FIGURES 19 – 22)

- Elytral and pronotal ground color black; labium emarginate apically ( Fig. 2View FIGURES 1 – 9. 1 – 3)............................................... ............................................................................................... Canthonella quesqueya  new species ( Fig. 20View FIGURES 19 – 22)

8. Elytron with triangular spot at apex of interstriae 1, 2, and 3; a smaller (occasionally obsolete) macula at apex of stria 5; 3.3–4.8 mm ............................................. Canthonella baorucensis  Ivie & Philips ( Fig. 24View FIGURES 23 – 25)

- Elytron immaculate in apical ½; 2.3–3.4 mm ........................ Canthonella howdeni  Ivie & Philips ( Fig. 25View FIGURES 23 – 25)