''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