Faiditus, KEYSERLING, 1884

Agnarsson, Ingi, 2004, Morphological phylogeny of cobweb spiders and their relatives (Araneae, Araneoidea, Theridiidae), Zoological Journal of the Linnean Society 141 (4), pp. 447-626 : 478-479

publication ID

https://doi.org/ 10.1111/j.1096-3642.2004.00120.x

persistent identifier

https://treatment.plazi.org/id/7E1687E1-4221-6C2A-FC6D-FB2B88B1FE92

treatment provided by

Diego

scientific name

Faiditus
status

 

FAIDITUS KEYSERLING, 1884 View in CoL View at ENA

Type – F. ecaudatus Keyserling, 1884 , designated by Petrunkevitch (1928), not examined.

Synonyms: Bellinda Keyserling, 1884 – type Theridion cancellatum Hentz, 1850 [= Bellinda cancellata ], not examined, syn. nov. Bellinda appears in the same publication as Faiditus . Usage may suggest priority of Faiditus , as Bellinda is only mentioned in Keyserling’s publication, but Petrunkevitch (1928) includes Faiditus in his Systema Aranearum.

Faiditus View in CoL is removed from synonymy of Argyrodes View in CoL , contra Levi & Levi (1962: 21). F. ecaudatus Keyserling, 1884 View in CoL , and all other species attributed to the ‘ A. cancellatus ’ and ‘ A. cordillera ’ groups of Exline & Levi (1962) and Zhu (1998) are explicitly transferred to Faiditus View in CoL and the following new combinations established:

F. acuminatus (Keyserling, 1891) View in CoL , F. affinis View in CoL (O. P.- Cambridge, 1880), F. alticeps (Keyserling, 1891) View in CoL , F. altus (Keyserling, 1891) View in CoL , F. amates ( Exline & Levi, 1962) View in CoL , F. americanus (Taczanowski, 1874) View in CoL , F. amplifrons View in CoL (O. P.-Cambridge, 1880), F. analiae ( González & Carmen, 1996) View in CoL , F. arthuri ( Exline & Levi, 1962) View in CoL , F. atopus (Chamberlin & Ivie, 1936) View in CoL , F. bryantae ( Exline & Levi, 1962) View in CoL , F. cancellatus (Hentz, 1850) , F. caudatus (Taczanowski, 1874) View in CoL , F. chickeringi ( Exline & Levi, 1962) View in CoL , F. caronae ( González & Carmen, 1996) View in CoL , F. chicaensis ( González & Carmen, 1996) View in CoL , F. cochleaformus (Exline, 1945) , F. convolutus ( Exline & Levi, 1962) View in CoL , F. cordillera (Exline, 1945) , F. cristinae ( González & Carmen, 1996) View in CoL , F. cubensis ( Exline & Levi, 1962) View in CoL , F. darlingtoni ( Exline & Levi, 1962) View in CoL , F. davisi ( Exline & Levi, 1962) View in CoL , F. dracus (Chamberlin & Ivie, 1936) View in CoL , F. duckensis ( González & Carmen, 1996) View in CoL , F. exiguus ( Exline & Levi, 1962) View in CoL , F. fulvus ( Exline & Levi, 1962) View in CoL , F. gapensis ( Exline & Levi, 1962) View in CoL , F. gertschi ( Exline & Levi, 1962) View in CoL , F. globosus (Keyserling, 1884) View in CoL , F. godmani ( Exline & Levi, 1962) View in CoL , F. iguazuensis ( González & Carmen, 1996) View in CoL , F. jamaicensis ( Exline & Levi, 1962) View in CoL , F. laraensis ( González & Carmen, 1996) View in CoL , F. leonensis ( Exline & Levi, 1962) View in CoL , F. maculosus View in CoL (O. P.-Cambridge, 1898), F. mariae ( González & Carmen, 1996) View in CoL , F. morretensis ( González & Carmen, 1996) View in CoL , F. nataliae ( González & Carmen, 1996) View in CoL , F. peruensis ( Exline & Levi, 1962) View in CoL , F. plaumanni ( Exline & Levi, 1962) View in CoL , F. proboscifer (Exline, 1945) View in CoL , F. quasiobtusus ( Exline & Levi, 1962) View in CoL , F. rigidus ( Exline & Levi, 1962) View in CoL , F. rossi ( Exline & Levi, 1962) View in CoL , F. sicki ( Exline & Levi, 1962) View in CoL , F. solidao (Levi, 1967) View in CoL , F. spinosus (Keyserling, 1884) View in CoL , F. striatus (Keyserling, 1891) View in CoL , F. subdolus View in CoL (O. P.- Cambridge, 1898), F. subflavus ( Exline & Levi, 1962) View in CoL , F. sullana (Exline, 1945) View in CoL , F. taeter ( Exline & Levi, 1962) View in CoL , F. ululans View in CoL (O. P.-Cambridge, 1880), F. vadoensis ( González & Carmen, 1996) View in CoL , F. woytkowskii ( Exline & Levi, 1962) View in CoL , F. xiphias (Thorell, 1887) View in CoL , F. yacuiensis ( González & Carmen, 1996) View in CoL , F. yutoensis ( González & Carmen, 1996) View in CoL .

Diagnosis: Faiditus here differs from other argyrodines (based on F. cf. chickeringi ) by the following putative synapomorphies: copulatory bursa anterior margin medially acute (6) a strongly hooked TTA distal tip (85, Fig. 48A, B View Figure 48 ), abdomen with paired (or multiple) humps (142, Fig. 94C View Figure 94 , also in some Neosphintharus ( Fig. 57F View Figure 57 ), E hidden by TTA ( Fig. 48B View Figure 48 ), and details of male cephalic modification (a shallow clypeal groove with a dense field of setae, Fig. 48C, D View Figure 48 ). All known Faiditus are kleptoparasitic and, as in Argyrodes , males are often larger than females ( Exline & Levi, 1962). At least details of cephalic modifications appear universal in Faiditus (see e.g. Exline & Levi, 1962; Zhu, 1998). Medially acute anterior copulatory bursa margin, hooked TTA distal tip, and E hidden by TTA were confirmed in other Faiditus examined in detail: F. americanus , F. amplifrons , F. cancellatus , F. cf. caudatus , F. spinosus and F. ululans . Abdomen humps were lacking only in F. ululans .

The synonymy of Bellinda with Faiditus was corroborated with examination of nontype specimens of the Bellinda generotype, F. cancellatus .

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Theridiidae

Loc

Faiditus

Agnarsson, Ingi 2004
2004
Loc

Faiditus

Keyserling 1884
1884
Loc

F. ecaudatus

Keyserling 1884
1884
Loc

Faiditus

Keyserling 1884
1884
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