Ceriomura intaca Rubio, Baigorria & Stolar, 2023

Rubio, Gonzalo D., Baigorria, Julián E. M. & Stolar, Cristian E., 2023, Unveiling some unknown jumping spiders (Araneae: Salticidae) from Argentina: descriptions of seven new species, Peckhamia 294 (1), pp. 1-22 : 2-4

Ceriomura intaca Rubio, Baigorria & Stolar , sp. nov.

LSID urn:lsid:zoobank.org:act:23BE0EAE-2286-4635-A9F4-4D31E799A333 Figures 1-12

Type material. Male holotype (IBSI-Ar 1392) from Argentina, Misiones, Cerro Azul, INTA Experimental Station , (S27.6575°, W55.4374°, 283 m a.s.l.), 12 November 2019, C . Stolar coll . Female allotype (IBSI-Ar 1015), same locality as holotype, 20 October 2017, G . Rubio coll .

Etymology. The specific name is a noun in apposition derived from the initials of the “Instituto Nacional de Tecnología Agropecuaria (INTA), Cerro Azul (CA),” in whose crops most of the specimens were collected.

Diagnosis. Ceriomura intaca sp. nov. can be easily distinguished from other Ceriomura by having conspicuous and relatively longer RTA and vRTA; compare Figures 1-2 , 14-17 in this paper with fig. 1e in Rubio and Baigorria 2016, fig. 1c in Galvis 2017 and figs. 7, 10 in Suarez-Martinez et al. 2022. The female resembles that of C. cruenta (Peckham & Peckham, 1894) , with a similar external epigyne, with the COs medially close together ( Figure 10 ), but differs in that the CDs take a single turn versus at least two turns in C. cruenta ; compare Figures 11-12 in this paper with figs. 25-26 in Suarez-Martinez et al. 2022.

Description. Male (holotype). Carapace length 2.05, width 1.64; abdomen length 2.78. Carapace ( Figures 1, 2 ) low, dark mahogany, cephalic region with five conspicuous yellow spots contrasting; anterior median eyes encircled by tufts of yellowish orange setae, other eyes encircled by black rings; no fovea mark in the center. Clypeus brown, mahogany, low, with few translucent hairs on the lower edge. Chelicerae dark brown, vertical, with two teeth on promargin and one tooth on retromargin. Palp dark brown, tibia with conspicuous RTA and vRTA, both with long setae. RTA directed dorsally, long, broad, round-tipped; and vRTA long, thin, nail-like tip, well-sclerotized. Embolus well-sclerotized, cylindrical, long and thin, straight in its apical half and tapering towards the tip, arising on the dorsal side of the bulb between this and the cymbium, at the level of the division between the TBD and TDD when viewed prolaterally; tip of the embolus accommodated on the cymbium. Spermophore visible. Legs I and II stout (the first stoutest); I blackish brown, metatarsus and tarsus pale; femur II blackish brown, prolateral margin of patella and tibia darker. Legs III and IV pale yellow, covered with black scattered hairs. Tibia I with two pairs of bulbous setae in ventrally positioned. Abdomen cylindrical but somewhat flattened dorsoventrally, elongated ( Figure 2 ); coloration in ethanol pale, whitish, with grayish scattered spots; dorsum covered with sparse long black hairs, like small thorns; venter grayish with scattered darker spots. Spinnerets long, pale and grayish. Live specimens show a conspicuous hairiness on the posterior third of the abdomen.

Female (Allotype). Carapace length 2.59, width 1.98; abdomen length 3.70. Carapace ( Figure 9 ) low, paleyellow general integument, cephalic region and thoracic slope brown, except in the fovea and three small patches on the cephalic region, with a few sparse black hairs. Eyes encircled by black rings. Clypeus very low with abundant white hairs. Chelicerae pale yellow, vertical with four small teeth on promargin and two teeth on retromargin. Labium and endites pale yellow; sternum slightly lighter than the mouthparts. Leg I slightly stouter than the rest, all pale yellow, covered with sparse gray hairs. Legs 4312. Tibia I with two pairs of bulbous setae in 2-2-0-0 ventrally (and slightly prolateral) positioned. Abdomen oval, elongated ( Figure 9 ); gray and reddish dorsal coloration, with ten bilaterally paired white guanine spots, and abundant hairiness mainly on the posterior half; white guanine reticulum on laterals of abdomen, venter gray. Spinnerets pale-light brown, long. Live pattern as preserved specimens, except for many visible reddish scales and conspicuous grayish hairiness on the spinnerets. Epigyne with a small plate, weakly sclerotized; with two small copulatory openings, relatively close together that look like two red dots ( Figure 10 ); copulatory ducts, coiled, left course running clockwise in ventral view, connecting to a small S-shaped spermatheca ( Figures 11, 12 ). Fertilization duct anterior to spermatheca.

Figures

Figures 1-8. Male of Ceriomura intaca sp. nov. (holotype IBSI-Ar 1392). 1, Habitus dorsal. 2, Same, lateral. 3, Left palp, retrolateral view. 4, Same, ventral. 5, Same, ventral. 6, Same, retrolateral. 7, Same, dorsal. 8, Same, prolateral.

Figures 9-12. Female of Ceriomura intaca sp. nov. (allotype IBSI-Ar 1015). 9, Habitus dorsal. 10, Epigyne, ventral view. 11, Same, cleared. 12, Same, dorsal view.

Figures 13-18. Male of Ceriomura lacinia sp. nov. (holotype IBSI-Ar 1191). 13, Habitus dorsal. 14, Left palp, ventral view. 15, Same, drawn. 16, Same, photo retrolateral view. 17, Same, dorsal. 18, Same, prolateral.