Bertrana is a genus of Central and South American orb-weaver spiders first described by Eugen von Keyserling in 1884. It includes some of the smallest known araneid orb-weavers. Bertrana striolata females are 4.5 mm long or less. The eight eyes are in two rows. The abdomen is white on top and on the sides, with multiple hieroglyphic-like lines and bars of many different shapes and length. In females, these are red, in males, black.
Species
it contains twelve species:
- Bertrana abbreviata <small>(Keyserling, 1879)</small> â Colombia
- Bertrana arena <small>Levi, 1989</small> â Costa Rica
- Bertrana benuta <small>Levi, 1994</small> â Colombia
- Bertrana elinguis <small>(Keyserling, 1883)</small> â Ecuador, Peru, Brazil, French Guiana
- Bertrana laselva <small>Levi, 1989</small> â Costa Rica
- Bertrana nancho <small>Levi, 1989</small> â Peru
- Bertrana planada <small>Levi, 1989</small> â Colombia, Ecuador
- Bertrana poa <small>Levi, 1994</small> â Ecuador
- Bertrana rufostriata <small>Simon, 1893</small> â Venezuela, Brazil
- Bertrana striolata <small>Keyserling, 1884</small> â Costa Rica to Argentina
- Bertrana urahua <small>Levi, 1994</small> â Ecuador
- Bertrana vella <small>Levi, 1989</small> â Panama, Colombia
References