Eutichurus marquesae Bonaldo, 1994

Bonaldo, Alexandre B., Lise, Arno A., Ramírez, Martín J. & Saturnino, Regiane, 2018, Revisiting the spider genus Eutichurus Simon, 1897 (Araneae, Eutichuridae): new species and complementary descriptions, Zootaxa 4382 (2), pp. 321-346 : 334-335

Eutichurus marquesae Bonaldo, 1994

Figs 27 ¯57; Map 1

Eutichurus marquesae Bonaldo, 1994: 130 , figs 80, 81. Female holotype from Colombia, Cundinamarca, Santa Fé de Bogotá, La Uvita, I.N. Maria leg. (MNRJ 152, not re-examined).

Diagnosis. Males of E. marquesae resemble those of E. paredesi n. sp. and E. madre by the MA with a long, retrolaterally directed median prong ( Figs 1 , 23 ) but can be distinguished from both species by the presence of a long embolar prolateral process inserted medially ( Figs 27 , 28). Females resemble those of E. madre (see Bonaldo 1994: fig. 79) but differ by the smaller semi-circular sclerotized area on the anterior projections, which are not projected over the posterior plates ( Fig. 52 ; Bonaldo 1994: fig. 80).

Description. Male (ICN-Ar 6474). Colour in ethanol: carapace brownish red, cephalic region darker, thoracic groove mark brown. Chelicerae dark red. Endites and labium brownish red. Sternum orange with brown margins. Legs orange. Chelicerae with 4 promarginal teeth, the third the largest, the first a denticle, and 4 retromarginal teeth, the first close to the second, others separated by their width. Abdomen pale yellow, with dense hairs. Tarsi I– IV with dense scopulae, metatarsi III–IV with sparse scopulae. Total length 14.0. Carapace 6.8 long, 5.3 wide. Eye diameters: AME 0.33, ALE 0.31, PME 0.23, PLE 0.27. Eye interdistances: AME–AME 0.40, AME–ALE 0.56, PME–PME 0.45, PME–PLE 0.70, AME–PME 0.35, ALE–PLE 0.17, clypeus AME 0.18, clypeus ALE 0 23. Leg and palp measurements: palp 6.3 (2.8, 1.1, 1.7, -, 2.3); leg I 24.2 (6.4, 2.8, 6.0, 6.4, 2.6); leg II 22.7 (5.9, 2.8, 5.5, 6.0, 2.5); leg III 18.3 (5.2, 2.5, 4.1, 4.6, 1.9); leg IV 22.9 (6.0, 2.6, 5.4, 6.5, 2.4). Leg formula I-IV-II-III. Spination: palpal femur: d 0-1-1; tibia p 1-1. Leg. I femur d 1-1-0, p 0-0-1, r 0; tibia d 0, p 0, r 0, v 2-2 -p1; metatarsus d 0, p 0, r 0, v 2 -p1-1. II—femur d 1-1-0, p 0-d1-d1, r 0; tibia d 0, p 0, r 0, v 2-2 -p1; metatarsus d 0, p 0, r 0, v 2-2 -1. IIIfemur d 1-1-0, p 0-d1-d1, r 0-d1-d2; tibia d 0, p 1-1, r 1-1, v 2-2 -2; metatarsus d p1r1-p1r1-p1r1, p 0-0-1, r 0-0-1, v 2-2 -1. IV—femur d 0-1-1, p 0-d1-d1, r 0-0-d1; tibia d 0, p 0-1, r 1-1, v 2-2 -2; metatarsus d p1r1-p1r1-p1r1, p 0-0- 1, r 0-0-1, v 2-2 -1. Spinnerets: ALS nearly conical, contiguous, with two major ampullate and numerous smaller piriform gland spigots; PMS with two minor ampullate and about 15 aciniform gland spigots; PLS with distal article very long and narrow, with at least 19 aciniform gland spigots ( Figs 42 ¯47); book lung cover pilose, without sculpture ( Fig. 48 ); abdominal vestiture of setae composed of longer plumose hairs and thin cylindrical scales with very short superficial barbs (Fig. 49); epiandrum without spigots (Fig. 50). Palp: tibia thin, almost the same length of cymbium; RTA strong, single, with large ventral, apical process. Tegular process small; MA apically placed, median prong large; conductor hyaline; embolus inserted sub-basally, with a slender, long prolateral process inserted medially ( Figs 27 ̄29).

Female. Described by Bonaldo (1994: 130). Complementary description: Tarsus I ( Fig. 30 ) with two claws with at least ten teeth, on midline of claw, claw tufts inserted on articulate plates, numerous tenent setae with moderately expanded tips (Figs 32, 33), and at least 12 trichobothria in two rows. Tarsus IV similar to I (Fig. 31); scopular setae (Fig. 33) long and slender, with simple socket and tenent surface oriented distally; bothrium (Fig. 34) with several transversal ridges on proximal hood, trichobothria shaft with basal expansion covered by small bumps; tarsal organ (Fig. 35) capsulate, with oval opening. Spinnerets ( Figs 36 ¯41): ALS as in male, PMS with two minor ampullate, about 30 aciniform, and about 4 cylindrical gland spigots with slightly thicker shafts than the aciniforms. Book lung atrium with well-formed mesh (Fig. 51). Epigynum ( Figs 52 ̄57) with bulbous posterior plates closing over median field ( Figs 52 , 53), primary spermathecae small, fertilization duct not advanced (Figs 54, 55), secondary spermatheca with long stalk and many gland pores (Figs 55, 56), internal side of epigynum lined with cuticular gland ducts (Fig. 57).

Distribution. Central Colombia (Map 1).

New Records. COLOMBIA. Bogotá : Cundinamarca [04°42’35”N 74°04’17”W], 2600 m, 1 male (ICN-Ar 6474), 2.X.1996, T . San Juan leg.; Chia [04°51’48”N 74°03’10”W], 2600 m, 3 females and 1 male (ICN-Ar 6478), 14.XII.2000, I . Pinzón leg.; Boyacá, Villa de Leyva [05°38’14”N 73°31’40”W], 2 males and 1 female (ICN-Ar 786), 7.X.2001, C . Pinzón leg.; Sáchica [05°34’59”N 73°03’34”W], 2600 m, 3 males (ICN-Ar 1716), 11.VI.2002, O . Combito leg.; same locality, 1 male (ICN-Ar 6473), 14.VI.2002 .

Figures

FIGURES 1¯3. Eutichurus paredesi new species. Male: 1 palp, ventral view; 2 embolus, prolateral view; 3 palp, retrolateral view.Abbreviations: aMA—apices of MA; apMA—apices of median prong of MA; MA—median apophysis.Scale bar = 0,25 mm.

FIGURES 23¯26. Eutichurus madre Bonaldo, 1994. Male: 23 palp, ventral view; 24 embolus, prolateral view; 25 palp, retrolateral view.Female:26 epigynum, dorsal view.Scale bar = 0,25 mm.

FIGURES 27¯29. Eutichurus marquesae Bonaldo, 1994. Male: 27 palp, ventral view; 28 embolus, prolateral view; 29 palp, retrolateral view.Scale bar = 0,25 mm.

FIGURES 30¯35. Eutichurus marquesae Bonaldo, 1994. Female: 30 claw, tarsus I, retrolateral view; 31 claw, tarsus IV, retrolateral view; 32claw tuft, tarsus I; 33 scopulae, tarsus I; 34 thricobothria, tarsus I; 35 tarsal organ, tarsus IV.

FIGURES 36¯41. Eutichurus marquesae Bonaldo, 1994. Female: 36, 37 anterior lateral spinnerets; 38, 39 posterior median spinnerets; 40 posterior lateral spinnerets; 41 spinnerets, general view. Abbreviatures: AC—aciniform gland spigot, Cycylindrical gland spigot; MaAmp—major ampullated gland spigot; MiAmp—minor ampullated gland spigot; Pi—piriform gland spigot.

FIGURES 42¯47. Eutichurus marquesae Bonaldo, 1994. Male: spinnerets: 42, 43 anterior lateral spinnerets; 44, 45 posterior median spinnerets; 46, 47 posterior lateral spinnerets. Abbreviatures: AC—aciniform gland spigot; MaAmp—major ampullatedgland spigot; MiAmp—minor ampullated gland spigot; Pi—piriform gland spigot; TP—tartipore.

FIGURES 48¯51. Eutichurus marquesae Bonaldo, 1994. Male: 48 book lung cover, 49 abdominal setae; 50 epiandrum. Female: 51 book lung atrial mesh.

FIGURES 52¯57. Eutichurus marquesae Bonaldo, 1994. Female: epigynum, 52 ventral view; 53 posterior view; 54 dorsal view; 55 dorso-lateral view; 56 dorso-anterior view; 57 cuticular glands. Abbreviatures: AP—anterior projection of lateral lobe; CD—copulatory duct; CG—cuticular gland; FD—fertilization duct; MF—median field; PP—posterior plate of lateral lobe; S1—primary spermathecae; S2—secondary spermathecae; SS2—stalk of S2.