Ariadna caerulea Keyserling, 1877

Giroti, André Marsola & Brescovit, Antonio Domingos, 2018, The taxonomy of the American Ariadna Audouin (Araneae: Synspermiata: Segestriidae), Zootaxa 4400 (1), pp. 1-114 : 41-44

publication ID	https://doi.org/ 10.11646/zootaxa.4400.1.1
publication LSID	lsid:zoobank.org:pub:59CC08B8-5B13-42EC-943E-C930D7D0DD7F
DOI	https://doi.org/10.5281/zenodo.5987872
persistent identifier	https://treatment.plazi.org/id/039B87D1-FFCC-B131-169B-FA64C471FC9D
treatment provided by	Plazi
scientific name	Ariadna caerulea Keyserling, 1877
status

Treatment

Ariadna caerulea Keyserling, 1877 View in CoL

Figures 24‒25 View FIGURE 24 View FIGURE 25 , 68 View FIGURE68

Ariadne caerulea Keyserling, 1877: 227 (Immature lectotype and lectoparatype from Bogotá [04°35'53"N; 74°04'33"W], Cundinamarca, Colombia, deposited in NHM 90.7.1.478.9, designated by Beatty (1970), examined). Ariadna View in CoL caerulea— Petrunkevitch (1911: 131).— Bonnet (1955: 732).— Beatty (1970: 465, figs 44‒45, 49).— World Spider Catalog (2018).

Ariadna coerulea — Mello-Leitão (1943: 233).

Additional material examined. COLOMBIA: Magdalena Department: S side of Sierra Nevada de Santa Marta [10°51'59"N; 73°42'59"W], 8‒11,000ft., 1♂, IV.1938, T.D. Cabot leg. ( MCZ 46061) GoogleMaps ; Cundinamarca Department: Suesca [05°06'N; 73°48'W], Vivenda Santa Rosa , 2600m, 1♂, 31.III.2010, L. Sánches leg. (ICN-AR 4762) GoogleMaps ; Bogotá [04°35'53"N; 74°04'33"W], 1♀ ( MNHNP-AR) GoogleMaps .

Diagnosis. Males of Ariadna caerulea are similar to A. ubajara n. sp. due to the morphology of the palps ( Figs 25A‒B View FIGURE 25 , 59F‒G View FIGURE59 ) and metatarsi I ( Figs 24C‒E View FIGURE 24 , 59C‒E View FIGURE59 ), but differ by the presence of males with the mid-portion strongly bent forwards and a more tapered embolus tip ( Fig. 24C‒E View FIGURE 24 ); females are similar to A. boliviana , A. isthmica and A. gaucha n. sp. due to the macrosetae pattern of tibiae I‒II, but differ from these species, except A.

isthmica , by the presence of anterior receptaculum with the ventral lobe shorter than the dorsal one; it differs from A. isthmica by the presence of a ventral lobe longer and more sinuous ( Fig. 25C‒D View FIGURE 25 ).

Description. Male (ICN-Ar 4762). Carapace and chelicerae reddish brown ( Fig. 24A View FIGURE 24 ). Endites brownish orange; labium dark brownish orange. Sternum brownish orange with darker margins, and three pairs of dark marginal areas ( Fig. 24B View FIGURE 24 ). Palps light brownish orange ( Fig. 25A‒B View FIGURE 25 ). Legs brownish orange, with pairs I‒II darker ( Fig. 24C‒E View FIGURE 24 ). Abdomen grey, lighter ventrally ( Fig. 24A‒B View FIGURE 24 ). Total length 8.2; carapace 3.8 long, 2.6 wide. Palps: tibia incrassated, with the dorso-ventral diameter similar to the bulb; bulb sub-rectangular, mid-portion shorter than the embolus and abruptly curved forwards; embolus tapered and with a tubular tip; ( Fig. 25A‒B View FIGURE 25 ). Legs: slender and coated with setae ( Fig. 24C‒E View FIGURE 24 ); tarsal brush of putative chemosensory setae present in legs I‒IV, reduced in pair I, and extending to the distal region of metatarsi III‒IV. Leg formula: I-II-IV-III. Leg measurements: I, femur 3.64, patella 1.32, tibia 2.8, metatarsus 3.0, tarsus 0.84, total 11.6; II, 3.4, 1.36, 2.84, 3.0, 0.84, 11.44; III, 2.44, 1.08, 1.84, 1.84, 0.76, 7.96; IV, 2.84, 1.32, 2.2, 1.92, 0.8, 9.08. Macrosetae: I, femur D0-0-1-0-0-2-0, P0-0-0-0-0-1-0; patella P1, R1-1; tibia D0-0-0-1-0-0-0, P0-1-0-1-0-1-0, vr2-0-0-0-0-0/1-1, R1-1-1-0/1-1-0; metatarsus vp1-0-0-0- 0-0-0, vr0-0-0-0-0-0-1 ( Fig. 24C‒E View FIGURE 24 ); II, femur D0-1-1-0/1-0-2-0, P0-0-0-0-1/0-1-0; patella P0/1, R1; tibia P0-1-0- 1-0-1-0, vp0-0-0-0-0-0-1, vr2-0-1-0-1-1-1, R1-0-0/1-1-0-1-0; metatarsus vp1-0-0-0-0-0-0, vr1-0-0-0-0-0-1; IV, femur D1-1-1-1-1-1-1-1-0-2-0; tibia r0-0-0-0-0-1-0; metatarsus vp0-0-0-0-0-0-1/2, vr metatarsal comb with 3-4 macrosetae, r0-0-1/0-0-0-0-0.

Female (MNHNP-AR 25233). Carapace brownish orange. Chelicerae reddish orange, darker than the carapace ( Fig. 24F View FIGURE 24 ). Endites brownish orange; labium dark brownish orange. Sternum brownish orange with darker margins ( Fig. 24G View FIGURE 24 ). Palps reddish orange, darkening gradually in distal direction. Legs orange, with pairs I‒II darker ( Fig. 24H‒I View FIGURE 24 ). Abdomen as in male ( Fig. 24F‒G View FIGURE 24 ). Total length 10.64; carapace 4.96 long, 2.84 wide. Carapace with wavy margins ( Fig. 24F View FIGURE 24 ). Legs: robust and coated with setae; legs I‒II with ventro-prolateral and ventro-retrolateral tibial macrosetae of similar size, and metatarsal macrosetae of different sizes ( Fig. 24H‒I View FIGURE 24 ). Leg formula: I-II-IV-III. Leg measurements: I, femur 3.68, patella 1.76, tibia 3.08, metatarsus 2.92, tarsus 0.84, total 12.28; II, 3.44, 1.68, 2.92, 2.8, 0.84, 11.68; III, 2.68, 1.4, 1.88, 2.0, 0.8, 8.76; IV, 3.48, 1.76, 2.8, 2.32, 0.8, 11.16. Macrosetae: I, femur d0-0-0-0-0/1-2/1-0, p0-0-0-0-2-0-0; tibia p1-0-1-0-1-0, vp1-0-1-0-1-0-1-0, vr1-0-1-0-1-0-1- 0, r0-1-0-0-1-0; metatarsus vp1-1-1-1-1-1-1-1-1-1-1-1, vr1-1-1-1-1-1-0-1-1-1-1, ( Fig. 24H‒I View FIGURE 24 ); II, femur d0-0-0-0- 1-1-0, P0-0-0-0-1-1-0; tibia P0-0-1-0-1-0, vp1-0-0/1-0-1-0-1-0, vr1-0-1-0-1-0-1-0, R0-1-0-0-1-0; metatarsus vp1- 1-1-1-1-1-1-1-1-1-1, vr1-1-1-1-0-1-1-0/1-1-1-1; IV, metatarsus vp0-0-0-0-0-0-1, vr metatarsal comb with 4 macrosetae. Internal genitalia: anterior receptaculum with the glandular ducts plate extending to the proximal region of the dorsal lobe ( Fig. 25C‒D View FIGURE 25 ).