Celaetycheus Simon, 1897

Polotow, Daniele & Brescovit, Antonio D., 2009, Revision of the new wandering spider genus Ohvida and taxonomic remarks on Celaetycheus Simon, 1897 (Araneae: Ctenidae), Zootaxa 2115, pp. 1-20 : 13-17

publication ID	https://doi.org/ 10.5281/zenodo.187963
DOI	https://doi.org/10.5281/zenodo.6226614
persistent identifier	https://treatment.plazi.org/id/03B7D576-FFB6-FFF5-CA88-A1D4FAE3D580
treatment provided by	Plazi
scientific name	Celaetycheus Simon, 1897
status

Treatment

Celaetycheus Simon, 1897 View in CoL View at ENA

Figures 1 View FIGURE 1 C–D, 10–14, 16

Celaetycheus Simon 1897: 114 View in CoL , 115 (type species by monotypy: Celaetycheus flavostriatus Simon, 1897 View in CoL ). Lehtinen 1967: 378; Silva 2003.

Diagnosis. Males of Celaetycheus resemble those of Centroctenus Mello-Leitão, 1929 by the elongated tibiae and short cymbium (see Brescovit, 1996: figs 19–20), but can be distinguished by the presence of several small ventral spines on the endites, coxae, femora and trochanter ( Figs 12 View FIGURE 12 C, 13A–C) and the presence of a cymbial retroventral process ( Figs 11 View FIGURE 11 A–B) in the male palp. Females of Celaetycheus resemble those of Centroctenus by the smooth median plate (see Brescovit, 1996: figs 21–22), but can be distinguished by the short lateral spurs, with the tip below the median plate, and the spermathecae divided in two parts, with a round head and large and curved base in the epigyne ( Figs 11 View FIGURE 11 C–D).

Description. Small to medium sized ecribellate spiders. Total body length (males and females): 3.50–4.50 mm. Carapace piriform ( Figs 1 View FIGURE 1 C–D). Thoracic groove longitudinal, in the posterior third of the carapace ( Figs 1 View FIGURE 1 C–D). Carapace brown with radial black lines from fovea to the border of the carapace; border of carapace with white setae ( Figs 1 View FIGURE 1 C–D). Chilum divided. Clypeus with long erect black bristles. Eyes on black tubercles, with ctenoid pattern 2-4-2 ( Figs 1 View FIGURE 1 C–D). Eyes round, except oval anterior lateral eyes. Chelicerae brown with longitudinal black lines, projecting anteriorly in females; promargin with tree teeth, the median almost twice as high as the laterals ( Fig. 10 View FIGURE 10 A); retromargin with five similar sized teeth ( Fig. 10 View FIGURE 10 A); prominent basal condyle. Endites with external lateral margin excavated, distally rounded bearing dense apical scopulae ( Fig. 13 View FIGURE 13 C); subapical serrula. Labium distally rounded bearing dense apical scopula ( Fig. 13 View FIGURE 13 C). Sternum oval, not extending between legs IV ( Fig. 13 View FIGURE 13 C). Male legs more elongated and slender than those of female. Claw of the female pedipalp with four short teeth ( Fig. 10 View FIGURE 10 B). Trochanter deeply notched. Trichobothrial base with 2 transversal grooves ( Fig. 10 View FIGURE 10 C). Tarsal organ rounded and smooth, with oval aperture ( Fig. 10 View FIGURE 10 D). Abdomen oval, with numerous black setae in the anterior dorsal area. Sternum, endites, labium, legs and ventral abdomen light brown. Palp: femur elongated and sinuous; endites, coxae, femora and trochanter with several small ventral spines ( Figs 12 View FIGURE 12 C, 13A–C); tibiae elongated; short RTA and large ventral apophysis; round cymbium with retroventral process; laminar embolus with thin tip ( Fig. 11 View FIGURE 11 A); elongated and hook-shaped median apophysis ( Figs 11 View FIGURE 11 A–B); conductor with a groove to accommodate the tip of embolus ( Fig. 11 View FIGURE 11 A); retrolateral tegulum-subtegulum locking lobes ( Fig. 12 View FIGURE 12 A); subtegulum with three anelli ( Fig. 12 View FIGURE 12 A). Epigyne: elongated and smooth median field projected posteriorly; lateral field with short lateral projection ( Fig. 11 View FIGURE 11 C). Internally with short copulatory ducts; spermathecae divided in two parts, an anterior round head and a posterior large base; elongated and laminar fertilization ducts ( Fig. 11 View FIGURE 11 D). Spinnerets: anterior lateral spinneret has a pair of major ampullate gland spigots, a tartipore and about ten piriform gland spigots with elongated shafts ( Fig. 14 View FIGURE 14 A); posterior median spinneret has at least one minor ampullate gland spigots two cylindrical gland spigots and three aciniform gland spigot ( Fig. 14 View FIGURE 14 B); posterior median spinneret has approximately eight aciniform gland spigots with elongated shafts ( Fig. 14 View FIGURE 14 C).

Composition. One species: Celaetycheus flavostriatus .

Distribution. Atlantic forest, southern State of Bahia, Brazil ( Fig. 16 View FIGURE 16 A–B).

Misplaced species.

Ctenus ottleyi ( Petrunkevitch, 1930) View in CoL . Petrunkevitch 1930: 7, figs 1–3 (female holotype from Yunque, Puerto Rico, deposited in YPM 502046, examined); = Celaetycheus strenuus Bryant 1942: 8 , pl. 2, fig. 12 (female holotype from Maricao, Puerto Rico, 2–3.VI.1938, P. Darlington, deposited in MCZ 23172, examined), new synonymy.

Leptoctenus paradoxus ( F.O. Pickard-Cambridge, 1900) View in CoL . F.O. Pickard-Cambridge 1900: 115, pl. 8, fig. 13 (male holotype from Bugaba, Chiriqui, Panama, 3.III.1901, deposited in BMNH 1901.3.3.155, examined), new combination.

Ctenus delesserti ( Caporiacco, 1947) View in CoL . Caporiacco 1947: 28 (female holotype and an immature paratype from Webecari Mission, Essequibo Islands, West Demerara Region, Guyana, 3.IV.1936, and an immature paratype from Waratilla Creek, Essequibo Islands, West Demerara Region, Guyana, 29.V.1936, examined), new combination.

Celaetycheus modestus Bryant 1942: 7 View in CoL , pl. 2, fig. 19 (male holotype from El Yunque, Puerto Rico, 24–28.II.1941, C.T. Parsons, deposited in MCZ 22126, examined), incertae sedis.

Remarks. The type specimen of Celaetycheus paradoxus was examined and considered congeneric to the remaining Mexican species currently assigned to Leptoctenus such as L. byrrhus Simon, 1888 , L. gertschi Peck, 1981 and L. sonoraensis Peck, 1981 ( Peck 1981: figs 24–29) by the morphology of the male palp and the presence of three teeth on retromargin of the chelicerae ( Peck 1981: 165) rather than five teeth as occurs in Celaetycheus . The holotype of Leptoctenus , L. agalenoides L. Koch, 1878 , is from Australia and a critical review of the genus is required to evaluate the taxonomic status of the Mexican species of Leptoctenus in detail.

The type specimen of Celaetycheus delesserti was examined and is here considered a member of Ctenus species based on the presence of two projections on the median plate of the epigyne ( Brescovit & Simó, 2007: 2, figs 1–45).

The type specimen of Celaetycheus modestus was examined and considered incertae sedis in the Ctenidae . The species can not be diagnosed as member of any genus currently described in the Ctenidae .