Ocampo FC (2010), A revision of the Argentinean endemic genus Euc...

ECB-ART-41893

J Insect Sci 2010 Jan 01;10:205. doi: 10.1673/031.010.20501.

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A revision of the Argentinean endemic genus Eucranium Brullé (Coleoptera: Scarabaeidae: Scarabaeinae) with description of one new species and new synonymies.

Ocampo FC .

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The South American genus Eucranium Brullé has been revised and now includes six species: E. arachnoides Brullé, E. belenae Ocampo new species, E. cyclosoma Burmeister, E. dentifrons Guérin-Méneville, E. planicolle Burmeister, and E. simplicifrons Fairmaire. Eucranium pulvinatum Burmeister is a new junior synonym of Eucranium arachnoides Brullé, and Eucranium lepidum Burmeister is a new junior synonym of E. dentifrons Guérin-Méneville. The following lectotypes and neotypes are designated: Eucranium pulvinatum Burmeister, lectotype; Eucranium planicolle Burmeister, lectotype; Psammotrupes dentifrons Guérin-Méneville, neotype; and Eucranium lepidum Burmeister, neotype. Description of the genus and new species, diagnosis and illustrations, and distribution maps are provided for all species. A key to the species of this genus is provided, and the biology and conservation status of the species are discussed.

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References [+] :

Keller, Recent habitat fragmentation due to roads can lead to significant genetic differentiation in an abundant flightless ground beetle. 2004, Pubmed

	Figure 1. . Eucranium arachnoides, male, dorsal view.
	Figure 2. . Eucranium arachnoides, elytron dorsolateral view. High quality figures are available online.
	Figure 3. . Distribution map of E. arachnoides (circles) and E. simplicifrons (squares). High quality figures are available online.
	Figure 4. . Eucranium belenae, male dorsal view.
	Figure 5. . Eucranium belenae, female, dorsal view.
	Figure 6. . Eucranium belenae, male head, dorsal view.
	Figure 7. . Eucranium belenae, female head, dorsal view. High quality figures are available online.
	Figure 8. . Eucranium belenae, tibial apex and mesotarsus.
	Figure 9. . Eucranium belenae, mouthparts; 9A: labrum ventral view; 9B: labium ventral view; 9C, 9D: left maxilla, 9C: dorsal, 9D: ventral views; 9E: left mandible; 9F: right mandible (line scale = 1.0 mm).
	Figure 10. . Eucranium belenae, elytron dorsolateral view.
	Figure 11. . Eucranium belenae, male genitalia. High quality figures are available online.
	Figure 12. . Distribution map of E. belenae (circles) and E. dentifrons (squares). High quality figures are available online.
	Video 1. . Eucranium belenae carrying a goat dung pellet over a sand dune in Telteca, Mendoza province, Argentina. .
	Figure 13. . Habitat of E. belenae in Reserva Provincial Telteca, Mendoza, Argentina. High quality figures are available online.
	Figure 14. . Eucranium cyclosoma, male dorsal view.
	Figure 15. . Eucranium cyclosoma, elytron dorsolateral view.
	Figure 16. . Eucranium cyclosoma, tibial apex and mesotarsus. High quality figures are available online.
	Figure 17. . Distribution map of E. cyclosoma (circles) and E. planicolle (squares). High quality figures are available online.
	Video 2. . Eucranium cyclosoma carrying a piece of horse dung over a sand dune in Catamarca province, Argentina. .
	Figure 18. . Habitat of E. cyclosoma close to Capillitas in Catamarca, Argentina.
	Figure 19. . Eucranium dentifrons, male dorsal view.
	Figure 20. . Eucranium dentifrons, elytron dorsolateral view.
	Figure 21. . Habitat of Eucranium dentifrons in Peníínsula Valdes, Chubut, Argentina. High quality figures are available online.
	Figure 22. . Eucranium planicolle, male dorsal view.
	Figure 23. . Eucranium planicolle, elytron dorsolateral view. High quality figures are available online.
	Figure 24. . Eucranium simplicifrons, male dorsal view.
	Figure 25. . Eucranium simplicifrons, elytron dorsolateral view.
	Figure 26. . Eucranium simplicifrons, tibial apex and mesotarsus. High quality figures are available online.