Dasumia capacii, Kunt & Özkütük, 2023

Kunt, Kadir Boğaç & Özkütük, Recep Sulhi, 2023, New data on the Harpacteinae of Turkey (Araneae, Dysderidae), Zootaxa 5375 (3), pp. 379-408 : 383-385

Dasumia capacii sp. nov.

Figs 5–13

Material examined: Holotype 1 ♂ ( ETZM), Kemer Dist. , Çaltıcak Area (36°47’6”N 30°34’9”E), asl c. 20 m, 9 Mar 2016, leg. Kadir Boğac Kunt. Paratypes 1 ♂, 2 ♀ ( ETZM), same data as holotype — 1 ♂ ( ETZM), Kemer Dist. , Between Sarısu-Beldibi (36°47’6”N 30°34’9”E), asl c. 18 m, 25 Feb 2015, leg. Kadir Boğac Kunt — 1 ♀, 2 ♂ ( ETZM), Kemer Dist. , Çıralı Road (36°25’14”N 30°27’19”E), asl c. 42 m, 04 Nov 2016 ↔ 27 Apr 2017, leg. E.A. Yağmur — 1 ♂ ( ETZM), Konyaaltı Dist. , Küçük Çaltıcak Area (36°47’37”N 30°34’23”E), asl c. 19 m, 27 Apr 2017, leg. E.A. Yağmur — 4 ♀, 2J ( ETZM), Kumluca Dist. , Çıralı Town (36°25’14”N 30°27’20”E), asl c. 54 m, 11 Mar 2016, leg. Kadir Boğac Kunt — 1 ♂ ( ETZM), Kumluca Dist. , Yazır Vill., ancient city of Olympos (36°23’17”N 30°27’33”E), asl c. 40 m, 06 Nov 2016 ↔ 27 Apr 2017, leg. E.A. Yağmur.

Etymology: The new species is named in honor of the Turkish medical doctor, naturalist, calligraphist and philosopher, Kazım Çapacı, mentor and friend of the first author.

Diagnosis: D. capacii sp. nov. resembles D. gasparoi Kunt, Özkütük & Elverici, 2011 , endemic to Turkey, and D. crassipalpis (Simon, 1882) , from the Middle East, but differs from these species by the bulb morphology. In D. capacii sp. nov. and D. crassipalpis , the length of the tegulum and distal division are almost equal, whereas in D. gasparoi the length of the distal division is longer than the tegulum. Moreover, the tip of the embolus is directed towards apophysis b in D. gasparoi and D. crassipalpis , whereas in D. capacii sp. nov. it is directed towards apophysis a ( Figs 8–10 ).

The vulva of D. capacii sp. nov. resembles that of D. gasparoi by the curved margins of the anterior margin of the anterior arcs, and D. gasparoi and D. mariandyna Brignoli, 1979 by the enlarged basal spermathecae ( Figs 11– 13 ). It differs from D. gasparoi by the spermatheca not as triangular, and from D. mariandyna by the less prominent roundishstructures on the sides of the spermatheca. In additon the the transversal bar is more prominently developed in D. capacii sp. nov. than in other species ( Figs 11–12 ).

Description: Measurements: [Holotype ♂ / Paratypes ♀] TL 5.50/3.65–7.10; AL 3.00/3.55–3.80; CL 2.50/3.10–3.30; CW 1.95/2.40–2.45; Clh 0.05/0.06–0.06; AEd 0.12/0.16–0.18; iAE 0.04/0.05–0.05; PLEd 0.12/0.14–0.14; PMEd 0.11/0.13–0.13; ChF 0.50/0.50–0.55; ChG 0.35/0.45–0.50; ChL 1.10/1.00–1.40.

[Paratype ♂] TL 7.30; AL 3.90; CL 3.40; CW 2.65; Clh 0.06; AEd 0.18; iAE 0.05; PLEd 0.14; PMEd 0.14; ChF 0.55; ChG 0.50; ChL 1.50.

Large sized harpacteine spiders. There are no differences between males and females in general morphology. Carapace brown; fovea longitudinal, distinct. Thoracic region of the carapace about 2½ times of wider than eye region ( Fig. 5 ). AE, PLE and PME arranged annularly. Sternum and gnatocoxae brown. The margins of the sternum with long blackish setae, darker than the general. Gnatocoxae ventrally with short blunt blackish setae. Labium and chelicerae darker in color ( Fig. 6 ). Cheliceral groove with four teeth. The teeth in the promarginal are in a row, strongly developed. Larger than the one following it at the base of the cheliceral groove. The first of the retromarginal teeth is smaller than the second. The distance between the two is almost four times the width of the base of the first tooth ( Fig. 7 ). Abdomen grayish, covered with grayish short setae. Legs yellowish brown. Distal and proximal parts of leg segments dark brown ( Fig. 5 ). Leg formula: IV, I, II, III. Leg spination and measurements are given in Tables 3 and 4.

Palp ( Figs 8–10 ): Palpal tarsus is almost the same length as the tibia. Tegulum cylindrical, longer than wide. Anterior margin flat, posterior margin concave.Anterior and distal margins almost perpendicular to each other. Distal appendages strongly sclerotized. Embolus black, massive; originating from a broad, triangular base posteriorly and then strongly curving dorsally and looking like a hook ( Figs 8–10 ). The conductor is large. It consists of two different apophyses that are almost fused together. There is a strong beak-shaped apophysis just ventrally to the embolar base (AP a). Another apophysis (AP b) is shaped as a large sclerotized wing in the direction opposite to embolus and AP

a

( Fig. 9 ).

Vulva ( Figs 11–13 ): Anterior arc completely sclerotized ( Figs 11–12 ). Spermatheca gladius-shaped, but with a blunt tip. Spermatechal keel is less sclerotized than other parts of the spermateca, and mostly membranous except for the midline. The central part of the spermatheca is almost twice as wide as the spermathecal keel. Roundish structures are fused with the anterior margin of the anterior arc ( Fig. 11 ). There are membranous layers between the anterior margin of the anterior arc and the transversal bar. Transversal bar almost twice as wide as the anterior margin of the anterior arc. Posterior diverticulum membranous, round and distinct ( Fig. 12 ).

Figures

FIGURES 5–7. Dasumia capacii sp. nov. 5. Male, habitus 6. Ditto, sternum, ventral view 7. Chelicera, ventral view (red dots, promarginal; white dots, retromarginal teeth).

FIGURES 8–10. Dasumia capacii sp. nov. 8. Bulb (right), retrolateral view 9. Ditto, nearly retrolateral view 10. Bulb (left), prolateral view. Abbreviations: Ap a, Apophysis a; Ap b, Apophysis b; C, conductor; E embolus.

FIGURES 11–13. Dasumia capacii sp. nov. 11–13. Vulva, dorsal, nearly dorsal and ventral view respectively. Abbreviations: AA, anterior margin of the anterior arch; AC, anterior arc; PD, posterior diverticulum; RS, roundishstructure; S, spermatheca; SK, spermathecal keel; TB, transversal bar.