Afraflacilla

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Afraflacilla
Afraflacilla-sp-nov-whyte-A-Field-Guide-to-Spiders-of-Australia.jpg
An undescribed Afraflacilla species, Tennant Creek NT Australia
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Salticidae
Subfamily: Salticinae
Genus: Afraflacilla
Berland & Millot, 1941
Type species
Afraflacilla bamakoi
Berland & Millot, 1941
Species

42, see text

Afraflacilla grayorum from Kiwirrkurra Indigenous Protected Area in the Gibson Desert, Western Australia Afraflacilla-grayorum-whyte-A Field Guide to Spiders of Australia.jpg
Afraflacilla grayorum from Kiwirrkurra Indigenous Protected Area in the Gibson Desert, Western Australia

Afraflacilla is a genus of the spider family Salticidae (jumping spiders). [1] [2] [3] Most species are distributed in Eastern to Northern Africa (including the Middle East) and Australia, with two species (A. epiblemoides and A. tarajalis) found in Europe. This genus was for a time included in the genus Pseudicius , and the boundaries between both genera are disputed. In 2016 Jerzy Prószyński erected the genus Psenuc for some borderline species. [1] [4] The name Afraflacilla is combined from Africa, where most earlier described species were found, and FlacillaSimon, 1901, an obsolete salticid genus now called Flacillula Strand, 1932. This genus name is in turn derived from Aelia Flaccilla, wife of Roman Emperor Theodosius I. Afraflacilla, Pseudicius , Festucula and Marchena are close relatives and form a monophyletic group.

Contents

Afraflacilla species have tubercles and bristles (on the sides of the carapace near the eyes and on their legs) which they rub together to make sounds used in courtship and possibly defence. The line of small tubercles (sharp knobs) under the eyes on the side of the carapace are usually visible to the naked eye. [5]

Afraflacilla in Australia

Afraflacilla species in Australia include A. grayorum, A. gunbar, A.huntorum, A.milledgei, A.stridulator, A.vestjensi and A.yeni. In Australia they occupy tree trunks in deserts, savanna woodland and in open sclerophyll forests from south west Western Australia to Cape York Queensland, mostly in warmer regions. There are many undescribed Australian species. Afraflacilla grayorum Grays' stridulating jumping spider, found in northern Australian deserts, was named in honour of Michael and Greta Gray. [6]

The male palpal organ of many Australian Afraflacilla species has a large, circling embolus (inseminating sclerite) and retro-lateral tibial apophysis (side spike). Some undescribed Australian Afraflacilla species have greatly enlarged segments of the first pair of legs, and sometimes massive spurs coming from underneath the tibia and metatarsus (third and second last leg segments). Enlarged leg-one segments are also a feature of Pseudicius , a genus widespread outside Australia. [6]

Species

Palpal organs of two species of undescribed Australian Afraflacilla showing the obviously different places on the imaginary clock face at which the embolus arises. These are diagnostic for species, in combination with other characters. Afraflacilla-palps-whyte-A-Field-Guide-to-Spiders-of-Australia.jpg
Palpal organs of two species of undescribed Australian Afraflacilla showing the obviously different places on the imaginary clock face at which the embolus arises. These are diagnostic for species, in combination with other characters.

As of April 2022, the World Spider Catalog accepted the following species: [1]

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References

  1. 1 2 3 Bern, Natural History Museum. "Gen. Afraflacilla Berland & Millot, 1941". World Spider Catalog. Retrieved 7 April 2022.
  2. Żabka, Marek (1993). "Salticidae (Arachnida: Araneae) of the Oriental, Australian and Pacific Regions. IX.* Genera Afrajlacilla Berland & Millot 1941 and Evarcha Simon 1902". Invertebrate Taxonomy. 7 (2): 279–295. doi:10.1071/it9930279.
  3. Żabka, Marek (2002). "Salticidae (Arachnida: Araneae) from Oriental, Australian and Pacific regions, XVI. New species of Grayenulla and Afraflacilla". Records of the Australian Museum. 54 (3): 269–274. doi: 10.3853/j.0067-1975.54.2002.1366 .
  4. Prószyński, Jerzy (2016). "Delimitation and description of 19 new genera, a subgenus and a species of Salticidae (Araneae) of the world". Ecologica Montenegrina. 7: 4–32. doi: 10.37828/em.2016.7.1 .
  5. Whyte, Robert (2017). A Field Guide to Spiders of Australia CSIRO. Australia: CSIRO Publishing. ISBN   9780643107076.
  6. 1 2 "ARACHNE.ORG.AU". www.arachne.org.au. Retrieved 2017-05-24.