Indopadilla yokdon Hoang, Phan & Vo, 2024

Indopadilla yokdon Hoang, Phan & Vo, 2024 View in CoL

Indopadilla yokdon Hoang et al., 2024 View in CoL

Materials

Type status: Other material. Occurrence: catalogNumber: TBU-ARA-SAL-002.1 to 002.2 ; individualCount: 2; sex: 1 male, 1 female; lifeStage: adult; occurrenceID: 0939735E-A8FC-508A-BCED-215AAC1FE247; Taxon: scientificName: Indopadilla yokdon ; class: Arachnida; order: Araneae ; family: Salticidae ; genus: Indopadilla ; specificEpithet: yokdon ; scientificNameAuthorship: Hoang, Phan & Vo, 2024; taxonomicStatus: accepted; Location: country: Vietnam; countryCode: VN; stateProvince: Son La; locality: Ban Mong village ; verbatimElevation: 860 m; verbatimLatitude: 21°18.223’N; verbatimLongitude: 103°51.304’E; verbatimCoordinateSystem: WGS 84; Event: eventDate: May 29, 2023; eventRemarks: collected by Vu D. T.; Record Level: language: en; collectionCode: Arachnida; basisOfRecord: PreservedSpecimen GoogleMaps

Type status: Other material. Occurrence: catalogNumber: VNMN-SAL-078 ; individualCount: 1; sex: female; lifeStage: adult; occurrenceID: CA65BF4D-C1C2-5F92-A572-A9438CA7FA7B; Taxon: scientificName: Indopadilla yokdon ; class: Arachnida; order: Araneae ; family: Salticidae ; genus: Indopadilla ; specificEpithet: yokdon ; scientificNameAuthorship: Hoang, Phan & Vo, 2024; taxonomicStatus: accepted; Location: country: Vietnam; countryCode: VN; stateProvince: Dak Nong; locality: entrance of Co cave, Dray Sap special used forest ; verbatimElevation: 379 m; verbatimLatitude: 12°31.819’N; verbatimLongitude: 107°53.387’’E; verbatimCoordinateSystem: WGS 84; Event: eventDate: May 21, 2024; eventRemarks: collected by Pham D. S.; Record Level: language: en; collectionCode: Arachnida; basisOfRecord: PreservedSpecimen

Description

Male (TBU-ARA-SAL- 002.1) (Fig. 1 View Figure 1 A-D and Fig. 2 View Figure 2 A-D).

Total length 7.09. Carapace 3.0 long, 2.28 wide. Abdomen 3.75 long, 1.48 wide. Pedicel 0.34 long. Clypeus wide 0.4. Width of eye rows: anterior eye row 1.78; anterior medial eye row 1.3; posterior lateral eye row 1.33. Eye sizes and interdistances: AME 0.62, ALE 0.21, PME 0.08, PLE 0.24, ALE-PME 0.35, ALE-PLE 0.8. Legs' measurements: I 6.19 (2.1, 0.94, 1.56, 1.04, 0.55), II 4.5 (1.43, 0.76, 0.93, 0.9, 0.48), III 4.4 (1.43, 0.68, 0.73, 0.94, 0.62), IV 5.46 (1.35, 0.77, 1.26, 1.33, 0.75).

Carapace red-brown to dark brown, with a pale pan-shaped pattern extending from behind the posterior lateral eyes (PLE) to the posterior margin, clothed with sparse white setae. Area surrounding the posterior median eyes (PME) and PLE is black. Chelicera, endite, labium, sternum red-brown. Leg I (excluding its pale yellow tarsus) is reddish-brown and appears to be the largest and darkest amongst the four legs, while the remaining three are slender and uniformly pale yellow (Fig. 1 View Figure 1 ). Femora of all legs bear a single prolateral macroseta centrally placed near the patella. Pedipalp similar in colour to leg I; cymbium yellow-brown to pale yellow. Embolus curved, unbranched, with a broad and plate-shaped base and a relatively slender distal part, extending from the mid-point of the bulbus to nearly the apex of the cymbium. Retrolateral tibial apophysis (RTA) distinctive, approximately three-quarters the length of the tibia in lateral view, pointed and curved in an S-shape (Fig. 2 View Figure 2 ). Abdomen narrow and elongate, the width smaller than that of the carapace. Dorsum dark grey with four brown spots; venter light grey with two longitudinal dotted lines extending from the book lungs to the tracheal spiracle.

Female (TBU-ARA-SAL- 002.2) (Fig. 3 View Figure 3 A-D and Fig. 4 View Figure 4 A-B).

Total length 10.62. Carapace 3.99 long, 2.98 wide. Abdomen 6.05 long, 2.15 wide. Clypeus height 0.43. Pedicel 0.58 long. Width of eye rows: anterior eye row 2.05; anterior medial eye row 1.43; posterior lateral eye row 2.41. Eye sizes and interdistances: AME 0.56, ALE 0.34, PME 0.08, PLE 0.31, ALE-PME 0.45, ALE-PLE 0.97. Legs measurements: I 7.93 (2.45, 1.48, 1.9, 1.4, 0.7), II 5.85 (1.97, 1.07, 1.14, 1.02, 0.65), III 5.79 (1.68, 1.11, 0.93, 1.22, 0.85), IV 7.36 (2.17, 0.91, 1.53, 1.93, 0.82).

Posterior eye row bordered in black. Clypeus pale. First pair of leg reddish-brown; remaining legs pale yellow. Pedipalps pale yellow. Abdomen oblong, narrower than carapace, dorsum pale grey with distinct herring-bone pattern and four small brown spots (Fig. 3 View Figure 3 A). Epigyne with large, bean-shaped copulatory ducts (Fig. 4 View Figure 4 B). The epigyne is distinctly longer than wide. The epigynal coupling pocket is deep, delicate and dorsally curved, forming a dome-shaped tunnel. Copulatory ducts are prominent, bean-shaped and accompanied posteriorly by small, short and clearly distinguishable glandular ducts. The spermathecae are complex, coiled and heavily sclerotised. Detailed descriptions of these structures are provided in Hoang et al. (2024).

Diagnosis

The male of Indopadilla yokdon can be distinguished from all other congeners by the following combination of characteristics: (1) The embolus is plate-shaped, thin, curved, unbranched and extends from the mid-point of the bulbus to near the apex of the cymbium; (2) The retrolateral tibial apophysis (RTA) is distinctive, measuring approximately three-quarters the length of the tibia in lateral view; it is pointed and curved in an S-shape.

Characters shared with the female: The carapace is reddish-brown with a yellowish-brown funnel-shaped pattern on the posterior half (Fig. 1 View Figure 1 A and Fig. 3 View Figure 3 A). The clypeus white (Fig. 1 View Figure 1 D and Fig. 3 View Figure 3 D). The chelicera bear four teeth on the promarginal row. The first pair of legs is reddish-brown, while the remaining legs are light yellow. The femora of all legs bear lateral macroseta and an additional macroseta on the dorsal surface near the patella.

Ecology

Both specimens from Son La Province and the single specimen from Dak Nong Province were found inhabiting shrub canopies within tropical forest areas.