Troglohnia dafang 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

publication ID	https://dx.doi.org/10.3897/zookeys.1187.112936
publication LSID	lsid:zoobank.org:pub:A09B6A51-1026-4375-A4EA-0EFC676479F1
persistent identifier	https://treatment.plazi.org/id/5D13FD4B-1068-464F-8E04-6373ACEEB637
taxon LSID	lsid:zoobank.org:act:5D13FD4B-1068-464F-8E04-6373ACEEB637
treatment provided by	ZooKeys by Pensoft
scientific name	Troglohnia dafang Lin & Li
status	sp. nov.

Treatment

Troglohnia dafang Lin & Li sp. nov.

Figs 10A, B View Figure 10 , 11A, B View Figure 11 , 17A View Figure 17 , 18A View Figure 18 , 19A View Figure 19 , 20A, B View Figure 20 , 30 View Figure 30

Type material.

Holotype: ♂ (IZCAS-Ar44666), China, Guizhou: Dafang County, Sanhe Villiage, Yelaoda Cave, 27.1817°N, 105.4713°E, ca 1438 m, 03.V.2007, Y. Li and J. Liu leg. Paratypes: 1♂ 4♀ (IZCAS-Ar44667-Ar44671), same data as holotype.

Diagnosis.

Troglohnia dafang sp. nov. can be distinguished from T. qiubei sp. nov. by the tip of patellar apophysis pointed to 9:30 o’clock position (Fig. 17A View Figure 17 ) [vs 10:30 o’clock position (Fig. 17B View Figure 17 )], ventral retrolateral tibial apophysis almost as long as dorsal retrolateral tibial apophysis (Fig. 10B View Figure 10 ) [vs 1:2 (Fig. 12B View Figure 12 )], conductor stalk makes up 1/3 of total conductor length (Fig. 10A View Figure 10 ) [vs 1/2 (Fig. 12A View Figure 12 )], process on tegulum absent (Fig. 10A View Figure 10 ) [vs present (arrowed in Fig. 12A View Figure 12 )], copulatory openings touching each other (Fig. 11A View Figure 11 ) [vs facing each other (Fig. 13A View Figure 13 )], diameter of primary spermathecae ~ 2 × diameters of secondary spermathecae (Fig. 11B View Figure 11 ) [vs 1.5 × (Fig. 13B View Figure 13 )], distance between primary spermathecae and secondary spermathecae ~ 2 × diameters of secondary spermathecae (Fig. 11B View Figure 11 ) [vs 1 × (Fig. 13B View Figure 13 )], secondary spermathecae separated by ~ 4 × diameters (Fig. 11B View Figure 11 ) [vs 1.5 × (Fig. 13B View Figure 13 )], and fertilization ducts pointing to 9:00 o’clock position (Fig. 11B View Figure 11 ) [vs 7:30 o’clock position (Fig. 13B View Figure 13 )]. Females of T. dafang sp. nov. can be distinguished from those of T. shidian sp. nov. by the ratio of diameter of secondary spermathecae to length of branched shorter copulatory ducts almost 1:2 (Fig. 11B View Figure 11 ) [vs 1:1 (Fig. 14B View Figure 14 )], primary spermathecae elongate bean-shaped, separated by less than one diameter (Fig. 11B View Figure 11 ) [vs oval, separated by more than 2 × diameters (Fig. 14B View Figure 14 )], diameter of primary spermathecae ~ 2 × diameters of secondary spermathecae (Fig. 11B View Figure 11 ) [vs 1.2 × (Fig. 14B View Figure 14 )], distance between primary spermathecae and secondary spermathecae ~ 2 × diameters of secondary spermathecae (Fig. 11B View Figure 11 ) [vs 1 × (Fig. 14B View Figure 14 )] and secondary spermathecae separated by ~ 4 × diameters (Fig. 11B View Figure 11 ) [vs 3 × (Fig. 14B View Figure 14 )].

Description.

Male (holotype; Figs 10A, B View Figure 10 , 17A View Figure 17 , 20A View Figure 20 ). Total body length 2.47. Carapace 1.18 long, 0.97 wide; opisthosoma 1.29 long, 0.94 wide. Eye sizes and interdistances: AME 0.05, ALE 0.08, PME 0.07, PLE 0.06; AME-AME 0.03, AME-ALE 0.02, PME-PME 0.09, PME-PLE 0.04, ALE-PLE 0.03. MOA 0.16 long, front width 0.10, back width 0.19. Clypeus 0.18 high. Chelicerae with three promarginal and four retromarginal teeth. Leg measurements: I 4.09 (1.18, 0.41, 0.96, 0.86, 0.68); II 3.88 (1.11, 0.41, 0.86, 0.83, 0.67); III 3.44 (0.93, 0.33, 0.75, 0.81, 0.62); IV 4.35 (1.15, 0.39, 1.02, 1.08, 0.71). Leg spination: patella III d1; tibiae III p1 d1 v1, IV p1 d1 r1 v1.

Coloration (Fig. 20A View Figure 20 ). Carapace yellowish, middle region with indistinct brown band, margin with brown pattern. Fovea reddish-brown. Chelicerae, labium, gnathocoxae, and sternum yellowish. Sternum with dark marking. Legs yellowish. Opisthosoma oval, grey, middle of anteriorly and laterally with rod-shaped brown patterns, middle of posteriorly with inverted V-shaped brown patterns; venter with brown patterns and brown ring around spinnerets. Spinnerets base brown and tip white.

Palp (Figs 10A, B View Figure 10 , 17A View Figure 17 ). Patellar apophysis with wide base and narrowed tip, the narrowed tip shorter than the wide base. Ventral retrolateral tibial apophysis curved, almost as long as dorsal retrolateral tibial apophysis, but wider. Cymbium 1.5 × longer than wide. Cymbial furrow almost as long as cymbium. Bulb almost oval. Medium of tegulum with globular membranous area. Length of stalk of conductor almost 1/3 of total conductor length. Embolic tooth terminal flat. Embolus slender and whip-shaped.

Female (paratype IZCAS-Ar44671; Figs 11A, B View Figure 11 , 18A View Figure 18 , 19A View Figure 19 , 20B View Figure 20 ). Total body length 2.41. Carapace 0.92 long, 0.69 wide; opisthosoma 1.50 long, 1.16 wide. Eye sizes and interdistances: AME 0.03, ALE 0.09, PME 0.08, PLE 0.09; AME-AME 0.01, AME-ALE 0.02, PME-PME 0.09, PME-PLE 0.04, ALE-PLE 0.01. MOA 0.18 long, front width 0.10, back width 0.21. Clypeus 0.17 high. Chelicerae with three promarginal and three retromarginal teeth. Leg measurements: I 3.35 (0.99, 0.37, 0.75, 0.70, 0.54); II 3.17 (0.91, 0.36, 0.69, 0.68, 0.53); III 3.04 (0.89, 0.34, 0.63, 0.70, 0.48); IV 3.85 (1.07, 0.37, 0.93, 0.91, 0.57). Leg spination: femora I-III d1; patellae III-IV d1; tibiae III p1 d1 v1, IV p1 d1 r1 v2; metatarsi III d1 v2, IV p1 v2.

Coloration (Fig. 20B View Figure 20 ). As in male but body yellow.

Epigyne (Figs 11A, B View Figure 11 , 18A View Figure 18 , 19A View Figure 19 ). Epigynal plate 1.3 × wider than long. Hoods 3 × deeper than wide. The posterior edge of copulatory openings touching, slightly curved. The width of thick copulatory ducts base 2 × wider than the thinner part. The branched shorter copulatory ducts connected to the secondary spermathecae, the other connected to the primary spermathecae. Primary spermathecae elongate bean-shaped, 2 × wider than the secondary spermathecae. Fertilization ducts directed at 9:00 o’clock position from spermathecae.

Variation.

Male: total body length 2.33, carapace 1.15 long, 0.93 wide, opisthosoma 1.18 long, 0.92 wide. Females (n = 3): total body length 2.25-2.88, carapace 1.00-1.14 long, 0.73-0.88 wide, opisthosoma 1.23-1.74 long, 0.86-1.30 wide.

Etymology.

The specific epithet refers to the type locality; noun in apposition.

Distribution.

Known only from the type locality (Fig. 30 View Figure 30 ).