Sernokorba betyar, Gallé-Szpisjak & Gallé & Szűts, 2023

Galle-Szpisjak, Nikolett, Galle, Robert & Szűts, Tamas, 2023, A review of the genus Sernokorba Kamura, 1992 (Araneae, Gnaphosidae), Zoosystematics and Evolution 99 (2), pp. 325-335 : 325

Sernokorba betyar sp. nov.

Figs 6-8 , 10 , 11 , 14 , 15 , 17-19 , 21 , 22 , 25-28 , 31 , 32 , 37 , 38 , 40 , 41 , 51 , 52

Type material.

Holotype: Hungary: Fülöpháza: male (46°51'55.00"N, 19°24'27.18"E) forest edge, pitfall trap, 1-10. June 2014, R. Gallé & N. Gallé-Szpisjak leg. (HNHM Araneae -9230).

Paratypes: Hungary: Tázlár: 1 male, 46°30'27.62"N, 19°30'2.22"E, forest edge, pitfall trap, 1-10. June 2014, R. Gallé & N. Gallé-Szpisjak leg. (HNHM Araneae -9229); Hungary: Fülöpháza: 1 female 46°52'47.57"N, 19°24'17.36"E, forest edge, pitfall trap, 1-10. June 2014, R. Gallé & N. Gallé-Szpisjak leg. (HNHM Araneae -9228); Hungary: Fülöpháza: 2 male, 46°52'46.93"N, 19°24'43.59"E, forest edge, pitfall trap, 18-25. May 2014 R. Gallé & N. Gallé-Szpisjak leg. (HNHM Araneae -9231); Hungary: Fülöpháza: 1 female 46°53'13.61"N, 19°24'33.89"E, forest edge, pitfall trap, 18-25. May 2014 R. Gallé & N. Gallé-Szpisjak leg. (HNHM Araneae -9241); Hungary: Fülöpháza: 1 male, 46°52'9.10"N, 19°24'56.25"E, forest edge, pitfall trap, 18-25. May 2014 R. Gallé & N. Gallé-Szpisjak leg. (HNHM Araneae -9238).

Other material examined.

Hungary: Tázlár: 1 male, 1 female, 46°31'7.83"N, 19°31'10.80"E, forest edge, pitfall trap 1-10. June 2014 R. Gallé & N. Gallé-Szpisjak leg. ; Hungary: Fülöpháza: 1 male, 1 female, 46°52'15.25"N, 19°24'29.06"E, forest edge, pitfall trap, 18-25. May 2014 R. Gallé & N. Gallé-Szpisjak leg. (HNHM Araneae -9208).

Diagnosis.

The male can be identified by the finger-like extensions on the tip of the conductor (Figs 37 , 38 ), and by the almost straight spermophore as seen from the retrolateral side (Fig. 25 , 32 ). Also, the male has an apical ectal depression on the gnathocoxae (Fig. 8 ), similar to that of S. tescorum . The female can be distinguished by the edge of the spermathecae: the lateral edge is more or less straight (vs. rounded in S. tescorum ) and the posterior edge is concave (vs. convex in S. tescorum ). Also, it can be distinguished by the deep atrial pockets (Figs 27 , 28 , 40 , 41 ) opposed to the shallow atrial pokets of the S. tescorum .

Description.

Male (Holotype; HNHM Araneae -9230). Colour. Carapace light brown with pale brown radiating stripes, covered with white fine setae (Fig. 7 ); thoracic groove dark brown (Fig. 7 ). Chelicerae pale brown (Fig. 7 ). Gnathocoxae brown with a dark brown outline; terminal part in ventral view pale yellow. Labium brown (Fig. 8 ). Sternum brown with radial light brown spots, posterior end dark brown. Trochanter I brown, all other trochanters pale yellow. All femora dark brown; all other leg segments pale yellow. Abdomen dark greyish brown with a reddish scutum; an anterior transverse line and two pairs of whitish spots present in the area of the scutum; anterior pair of spots placed closer to the midline, posterior pair situated laterally. Venter light greyish yellow, with two thin longitudinal stripes starting at epigastric furrow and extending towards spinnerets. Epigastric area yellowish-brown. Sides of abdomen dark brown. Spinnerets’ proximal segments dark brown/black, distal part pale yellow.

Carapace suboval, cephalic region much narrower (about 40% of maximal width), posterior region truncated (Fig. 7 ) and elevated, about twice as high as in front. Chelicerae thin, with one tooth on promargin and two teeth on retromargin. Gnathocoxae with an oblique depression on the lateral margin (Fig. 8 ). Sternum longer than wide. Labium as long as wide (Fig. 8 ), triangular. Clypeus low, about the diameter of AME high. Abdomen ovoid, longer than wide, truncated in front, with scutum covering 60% of the dorsum (Fig. 5 ). Total length, not including spinnerets, 4.32. Carapace 1.35 long, 0.98 wide, 0.41 high, highest at coxae III, widest at coxae II. Abdomen 2.72 long, 0.87 wide, with large bristles on proximal margin. Clypeus low, 0.10.

Leg measurements: I 3.05 (1.01, 0.42, 0.65, 0.51, 0.46); II 3.00 (0.99, 0.43, 0.63, 0.48, 0.47); III 2.89 (0.94, 0.39, 0.63, 0.47, 0.46); IV 3.99 (1.07, 0.57, 0.82, 1.0, 0.53). Leg formula IV-I-II-III.

Leg spination: I: femur d 1-1-1, p 0-0-1; tibia v 0-1-1. II: femur d 1-1-1, p 0-0-1; tibia v 0-1-1. III: femur d 1-1-1, p 0-0-1, r 0-0-1; patella p1, r1; tibia p 0-1-1 v 0-1-1, r 0-1-1; metatarsus p 0-1-2, r 0-0-2, v 0-0-1. IV: femur d 1-1-1, p 0-0-1, r 0-0-1; tibia d 0-1-0, p 1-1-1, v 1-1-1, r 0-1-1; metatarsus p 1-2-2, v 1-0-0, r 1-1-2.

Palp: Tibia longer than wide, RTA about 70% at cymbium’s length (Figs 10 , 11 , 21 , 22 , 25 ), thin, bent in its middle and with an apical hook (Figs 14 , 15 , 32 ); spermophore U-shaped, proximal part of tegulum is tight (Figs 10 , 11 , 21 , 22 ) (vs. loose in that of S. tescorum , as shown in Figs 9 , 20 ). Spermophore bent slightly in retrolateral view (Figs 15 , 25 ). Conductor membranous, with finger-like extensions (Figs 17-19 , 31 , 32 , 37 , 38 ).

Female (Paratype; HNHM 9241). Coloration as in male, except carapace and abdomen lighter (Fig. 6 ). Epigastric area yellowish-dark grey. Shape of carapace and abdomen (Fig. 6 ) as in males, except for absence of abdominal scutum. Total length, not including spinnerets, 4.04. Carapace 1.98 long, 1.50 wide, 0.57 high. Abdomen 3.58 long, 2.03 wide, 1.19.

Leg measurements: I 4.19 (1.45, 0.58, 0.82, 0.74, 0.60); II 4.13 (1.43, 0.57, 0.80, 0.75, 0.58); III 4.11 (1.30, 0.54, 0.81, 0.89, 0.57); IV 5.67 (1.65, 0.63, 1.21, 1.45, 0.73). Leg formula. IV-I-II-III.

Leg spination: I: femur d 1-1-1, p 0-0-1; tibia v 0-1-1. II: femur d 1-1-1, p 0-0-1; tibia v 0-1-1. III: femur d 1-1-1, p 0-0-1, r 0-0-1; patella p1, r1; tibia d 1-0-0, p 1-1-1 v 1-1-1, r 0-1-1; metatarsus d 0-1-1, p 0-1-1, r 0-1-1, v 1-0-1. IV: femur d 1-1-1, p 0-0-1, r 0-0-1; tibia d 1-0-0, p 1-1-1, v 1-1-2, r 0-1-1; metatarsus p 1-2-2, v 1-1-1, r 1-2-2.

Epigyne: copulatory openings positioned medially on anterior part; copulatory ducts short; spermathecae robust and pear-shaped.

Etymology.

The specific name is a Hungarian noun in apposition and refers to the outlaws “betyár” found in hiding places on the Hungarian Great Plain, just as this species has been avoiding its discovery so far.

Distribution.

Bács-Kiskun county, Forest steppes, Hungary.

Figures

Figures 5 - 8. European Sernokorba species; 5. Sernokorba tescorum, male habitus, dorsal view; 6 - 8. Sernokorba betyar sp. nov.; 6. Female habitus, dorsal view; 7. Male habitus, dorsal view; 8. Male, gnathocoxae, ventral view. Scale bars: 1.0 mm.

Figures 9 - 19. Palp comparison of the Sernokorba species; 9, 13. Sernokorba tescorum 9. Ventral view; 13. Retrolateral view; 10, 11, 14, 15, 17 - 19. Sernokorba betyar sp. nov. 10. Ventral view; 11. Proventral view; 14, 15. Retrolateral view; 17. Partially expanded palp, showing the conductor details, retrolateral view; 18. Conductor closeup, retrolateral view; 19. Slightly different angle; 12, 16. Sernokorba pallidipatellis; 12. Ventral view; 16. Retrolateral view. Scale bar: 0.25 mm.

Figures 20 - 28. Cleared copulatory organs; 20, 24. Sernokorba tescorum; 20. Ventral view; 24. Retrolateral view; 21, 22, 25 - 28. Sernokorba betyar sp. nov.; 21, 22. Ventral view; 25. Retrolateral view; 26. Prolateral view; 27. Epigyne, ventral view; 28. Vulva, dorsal view; 23. Sernokorba pallidipatellis, ventral view. Scale bar: 0.25 mm.

Figures 29 - 39. Illustrations of the male copulatory organs; 29, 30, 35, 36. Sernokorba tescorum; 29. Male copulatory organ ventral view; 30. Male copulatory organ, retrolateral view; 35. Conductor ventral view; 36. Conductor retrolateral view; 31, 32, 37, 38. Sernokorba betyar sp. nov.; 31. Male copulatory organ ventral view; 32. Male copulatory organ retrolateral view; 37. Conductor ventral view; 38. Conductor retrolateral view; 33, 34, 39. Sernokorba pallidipatellis; 33. Male copulatory organ ventral view; 34. Male copulatory organ retrolateral view; 39. Conductor ventral view.

Figures 40 - 47. Illustrations of the female genitalia; 40, 41 Sernokorba betyar sp. nov.; 40. Dorsal view; 41. Ventral view; 42, 43. Sernokorba tescorum; 42. Dorsal view; 43. Ventral view; 44, 45. Sernokorba pallidipatellis; 44. Dorsal view; 45. Ventral view; 46, 47. Sernokorba fanjing; 46. Dorsal view; 47. Ventral view.

Figures 48 - 52. Male chelicerae; 48 - 50. Sernokorba pallidipatellis; 51, 52. Sernokorba betyar sp. nov.