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. 2011:(132):51-64.
doi: 10.3897/zookeys.66.1570. Epub 2011 Oct 3.

Two new Neotropical species of Ceracis Mellié (Coleoptera, Ciidae) and redefinition of the cucullatus group

Caio Antunes-Carvalho  1 , Cristiano Lopes-Andrade
Affiliations

Two new Neotropical species of Ceracis Mellié (Coleoptera, Ciidae) and redefinition of the cucullatus group

Caio Antunes-Carvalho et al. Zookeys. 2011.

Abstract

Two new Neotropical species of Ceracis Mellié are described: Ceracis cassumbensis Antunes-Carvalho & Lopes-Andrade, sp. n. from a single locality in northeastern Brazil and Ceracis navarretei Antunes-Carvalho & Lopes-Andrade, sp. n. from a single locality in southern Mexico. Scanning Electron Microscope images of adults and photographs of holotypes and male terminalia are provided for both species, their similarities and differences with other Ceracis are briefly discussed, and the cucullatus species-group is redefined for including the new species described herein.

Keywords: Brazil; Ciid; Ciinae; Mexico; minute tree-fungus beetle.

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Figures

Figures 1–3.
Figures 1–3.
Habitus of Ceracis cassumbensis Antunes-Carvalho & Lopes-Andrade, sp. n., holotype. 1 Dorsal view 2 Lateral view 3 Ventral view.
Figures 4–10.
Figures 4–10.
Ceracis cassumbensis Antunes-Carvalho & Lopes-Andrade, sp. n., SEM of male topotypes (4–6) and slide preparations of male terminalia of a topotype (7–10). 4 Dorsal view 5 Lateral view 6 Ventral view, showing the transversely oval sex patch at the first abdominal ventrite (arrow) 7 Aedeagus showing penis (pen) and tegmen (teg). Note the conspicuous excavation in either side of tegmen (arrows) 8 Eighth sternite with anterior margin rounded at middle (arrow) 9 Eighth tergite 10 Fused ninth and tenth tergites.
Figures 11–13.
Figures 11–13.
Habitus of Ceracis navarretei Antunes-Carvalho & Lopes-Andrade, sp. n., holotype. 11 Dorsal view 12 Lateral view 13 Ventral view.
Figures 14–20.
Figures 14–20.
Ceracis navarretei Antunes-Carvalho & Lopes-Andrade, sp. n., SEM of male topotypes (14–16) and slide preparations of male terminalia of topotypes (17–20). 14 Dorsal view 15 Lateral view 16 Ventral view, showing the circular margined sex patch at the first abdominal ventrite (arrow) 17 Above, aedeagus showing penis (pen) and tegmen (teg). Below, a tegmen alone. Arrows indicate the angulation point from which the sides of tegmen converge in straight line toward the apex 18 Eighth sternite, showing the anterior margin weakly produced at middle (arrow) 19 Eighth tergite 20 Fused ninth and tenth tergites.
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References

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