''Bertrana'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of Central and

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

n orb-weaver spiders first described by

Eugen von Keyserling Eugen von Keyserling (22 March 1833 in Pockroy, Lithuania – 4 April 1889 in Dzierżoniów, Silesia Silesia (see names #Etymology, below) is a historical region of Central Europe that lies mostly within Poland, with small parts in the Czec ...

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'' (Keyserling, 1879) – Colombia *'' Bertrana arena'' Levi, 1989 – Costa Rica *'' Bertrana benuta'' Levi, 1994 – Colombia *'' Bertrana elinguis'' (Keyserling, 1883) – Ecuador, Peru, Brazil, French Guiana *'' Bertrana laselva'' Levi, 1989 – Costa Rica *'' Bertrana nancho'' Levi, 1989 – Peru *'' Bertrana planada'' Levi, 1989 – Colombia, Ecuador *'' Bertrana poa'' Levi, 1994 – Ecuador *'' Bertrana rufostriata'' Simon, 1893 – Venezuela, Brazil *'' Bertrana striolata'' Keyserling, 1884 – Costa Rica to Argentina *'' Bertrana urahua'' Levi, 1994 – Ecuador *'' Bertrana vella'' Levi, 1989 – Panama, Colombia

References

Araneidae genera Spiders of Central America Spiders of South America Taxa named by Eugen von Keyserling {{Araneidae-stub