Acacesia

Acacesia is a genus of orb-weaver spiders first described by Eugène Simon in 1895.[2] It contains six species with a mostly neotropical distribution, ranging from South America to Mexico. One species, A. hamata, is found in the US as well.

Acacesia
Acacesia tenella
Acacesia hamata
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Araneidae
Genus: Acacesia
Simon, 1895[1]
Type species
Epeira hamata
(Hentz, 1847)
Species

6, see text

Description

The backs of spiders in this genus are marked with a dagger shape, outlined in black and surrounded by a triangular folium. On each side of the dagger there are parallel rows of orange-brown dots. Body length of females ranges from 4.3 to 8 millimetres (0.17 to 0.31 in), of males from 3.6 to 6.5 millimetres (0.14 to 0.26 in)[3]

Behavior

As the other species are only known from museum specimens, only the natural history A. hamata is known in any detail.[3][4]

Relationships

Ocrepeira and Cyclosa are close relatives of this genus.[3]

Species

As of April 2019 it contains six species:[1]

  • Acacesia benigna Glueck, 1994 – Peru, Bolivia, Brazil
  • Acacesia graciosa Lise & Braul, 1996 – Brazil
  • Acacesia hamata (Hentz, 1847) – USA to Argentina
  • Acacesia tenella (L. Koch, 1871) – Mexico to Brazil, French Guiana, Guyana
  • Acacesia villalobosi Glueck, 1994 – Brazil
  • Acacesia yacuiensis Glueck, 1994 – Brazil, Argentina

References
  1. "Gen. Acacesia Simon, 1895". World Spider Catalog. Natural History Museum Bern. Retrieved 2019-05-10.
  2. Simon, E. (1895). Histoire naturelle des araignées. doi:10.5962/bhl.title.51973.
  3. Glueck, Susan (1994). "A Taxonomic Revision of the Orb Weaver Genus Acacesia (Araneae: Araneidae)". Psyche. 101 (1–2): 59–84. doi:10.1155/1994/34645.
  4. Levi, Herbert W. (1976). "The Orb-weaver Genera Verrucosa, Acanthepeira, Wagneriana, Acacesia, Wixia, Scoloderus and Alpaida North of Mexico (Araneae: Araneidae)". Bulletin of the Museum of Comparative Zoology. 147 (8): 351–391.


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