Typhlohnia Lin & Li, 2023

Chu, Chang, Lin, Yejie & Li, Shuqiang, 2023, New genera and new species of Hahniidae (Araneae) from China, Laos, Myanmar, and Vietnam, ZooKeys 1187, pp. 91-134 : 91

Genus Typhlohnia Lin & Li gen. nov.

Type species.

Typhlohnia rongshui sp. nov. from Guangxi, China.

Diagnosis.

Typhlohnia gen. nov. can be distinguished from Asiohahnia Ovtchinnikov, 1992 by the eyes retrograde (Fig. 28A-G ) [vs eyes normal (see Ovtchinnikov 1992: fig. 2.3)], body pale yellow to white (Fig. 29A-G ) [vs body with black patterns (see Ovtchinnikov 1992: fig. 2.4)], the length of cymbium almost 3-6 × of the length of cymbial furrow (Figs 23B , 25B ) [vs 2 × (see Ovtchinnikov 1992: figs 2.2, 3.2)], sperm duct with U-shaped curve (Figs 3D , 23A , 25A ) [vs without curved (see Ovtchinnikov 1992: figs 2.2, 2.6, 3.2)], copulatory openings anteriorly (Figs 21A , 22A , 24A , 26A , 27A ) [vs posteriorly (see Ovtchinnikov 1992: figs 3.3, 3.5, 3.7)] and epigyne with two pairs of spermathecae (Figs 21B , 22B , 24B , 26B , 27B ) [vs one pair (see Ovtchinnikov 1992: figs 3.4, 3.6, 3.8)].

Description.

Male. Total length 1.38-1.70 (n = 4). Carapace pale white to yellowish, without any pattern. 0-6 eyes, white, most species with two eyes. Fovea longitudinal, unobvious. Clypeus pale yellow, covered with several setae. Chelicerae pale yellow, with two or three promarginal and two or three retromarginal teeth, stridulatory files absent. Endites, labium pale yellow, covered with few black setae. Sternum brown, without markings. Legs pale yellow. Opisthosoma oval, pale white to brown. Spinnerets white, straight in posterior view. Tracheal spiracle long and transverse, distance of spiracle to epigastric furrow as long as to spinnerets.

Palpal femur almost 3 × longer than patella, spineless. Patella almost as long as tibia, with hook-shaped apophysis. Retrolateral tibial apophysis curved with serrations. Cymbium oval, almost 2 × longer than wide, cymbial furrow almost 1/3-1/6 × longer than cymbium. Bulb globular to oval. Sperm duct with U-shaped curve. Embolus whip-shaped, curving clockwise along tegular margin.

Female. Total length 1.30-2.07 (n = 13). Somatic characters as in male.

Epigynal plate wider than long, with a depression anteriorly. Copulatory openings located anteriorly, arc-shaped. Copulatory ducts long, in the Typhlohnia rongshui group strongly convoluted, but in the Typhlohnia sondoong group simple. The short duct connected to secondary spermathecae, the other connected to primary spermathecae. Primary spermathecae oval to bean-shaped, secondary spermathecae oval to globular. Fertilization ducts laminar, sickle-shaped.

Etymology.

The new generic name is a combination of Typhlo - (refers to the degenerated eyes) and Hahnia. The gender is feminine.

Species groups.

Two species groups: the Typhlohnia rongshui group and the Typhlohnia sondoong group. These groups can be distinguished by the males embolus originating at 3:00 o’clock position (the Typhlohnia rongshui group) or 7:30 o’clock position (the Typhlohnia sondoong group), length of embolus almost 3/4 perimeter of bulb (the Typhlohnia rongshui group) or half perimeter of bulb (the Typhlohnia sondoong group) and females have convoluted copulatory ducts (the Typhlohnia rongshui group) or simple copulatory ducts (the Typhlohnia sondoong group).

Composition.

This new genus includes five species: The Typhlohnia rongshui group: Typhlohnia kaiyang sp. nov. (♀), T. rongshui sp. nov. (♂♀) and T. suiyang sp. nov. (♀) and the Typhlohnia sondoong group: T. banlaksao sp. nov. (♀) and T. sondoong sp. nov. (♂♀).

Distribution.

Laos (Bolikhamxay), Vietnam (Quang Binh) and China (Guizhou, Guangxi) (Fig. 30 ).

Figures

Figure 3. Paratype male bulbs, ventral view A Goblinia tiane sp. nov. B Myahnia kanpetlet sp. nov. C Troglohnia qiubei sp. nov. D Typhlohnia rongshui sp. nov. Red arrows show the tegular outgrowth. Abbreviations: C = conductor, E = embolus, SD = sperm duct.

Figure 21. Typhlohnia banlaksao sp. nov., holotype female A epigyne, ventral view B vulva, dorsal view. Abbreviations: CD = copulatory duct, CO = copulatory opening, D = depression, FD = fertilization duct, GA = glandular appendage, PS = primary spermatheca, SS = secondary spermatheca.

Figure 22. Typhlohnia kaiyang sp. nov., holotype female A epigyne, ventral view B vulva, dorsal view. Abbreviations: CD = copulatory duct, CO = copulatory opening, FD = fertilization duct, PS = primary spermatheca, SS = secondary spermatheca.

Figure 23. Typhlohnia rongshui sp. nov., holotype male A ventral view B retrolateral view. Abbreviations: C = conductor, CF = cymbial furrow, E = embolus, PA = patellar apophysis, RTA = retrolateral tibial apophysis, SD = sperm duct.

Figure 24. Typhlohnia rongshui sp. nov., paratype female A epigyne, ventral view B vulva, dorsal view. Abbreviations: CD = copulatory duct, CO = copulatory opening, D = depression, FD = fertilization duct, PS = primary spermatheca, SS = secondary spermatheca.

Figure 25. Typhlohnia sondoong sp. nov., holotype male A ventral view B retrolateral view. Abbreviations: C = conductor, CF = cymbial furrow, E = embolus, PA = patellar apophysis, RTA = retrolateral tibial apophysis, SD = sperm duct.

Figure 26. Typhlohnia sondoong sp. nov., paratype female A epigyne, ventral view B vulva, dorsal view. Abbreviations: CD = copulatory duct, CO = copulatory opening, D = depression, FD = fertilization duct, GA = glandular appendage, PS = primary spermatheca, SS = secondary spermatheca.

Figure 27. Typhlohnia suiyang sp. nov., holotype female A epigyne, ventral view B vulva, dorsal view. Abbreviations: CD = copulatory duct, CO = copulatory opening, FD = fertilization duct, GA = glandular appendage, PS = primary spermatheca, SS = secondary spermatheca.

Figure 28. Cephalic regions of Typhlohnia gen. nov., dorsal view A Ty. banlaksao sp. nov., holotype female B Ty. kaiyang sp. nov., holotype female C Ty. rongshui sp. nov., holotype male D Same, paratype female E Ty. sondoong sp. nov., holotype male F same, paratype female G Ty. suiyang sp. nov., holotype female.

Figure 29. Typhlohnia gen. nov., habitus, dorsal view A Ty. banlaksao sp. nov., holotype female B Ty. kaiyang sp. nov., holotype female C Ty. rongshui sp. nov., holotype male D Same, paratype female E Ty. sondoong sp. nov., holotype male F same, paratype female G Ty. suiyang sp. nov., holotype female.

Figure 30. Distribution records of new Hahniidae species in South-east Asia 1 Goblinia tiane sp. nov. 2 Myahnia kanpetlet sp. nov. 3 Troglohnia dafang sp. nov. 4 Tr. qiubei sp. nov. 5 Tr. shidian sp. nov. 6 Tr. wuding sp. nov. 7 Typhlohnia banlaksao sp. nov. 8 Ty. kaiyang sp. nov. 9 Ty. rongshui sp. nov. 10 Ty. sondoong sp. nov. 11 Ty. suiyang sp. nov.