Palpalpaculla phyui Jiang & Li, 2022

Xin, Yafei, Jiang, Tongyao, Yao, Zhiyuan & Li, Shuqiang, 2022, Twenty new spider species (Arachnida: Araneae) from Late Cretaceous Kachin amber (Myanmar), Zoological Systematics 47 (1), pp. 1-65 : 52-54

publication ID

https://doi.org/ 10.11865/zs.2022101

publication LSID

lsid:zoobank.org:pub:1C62670D-1CEB-4A0C-8A12-D8824F6B61DA

DOI

https://doi.org/10.5281/zenodo.7172614

persistent identifier

https://treatment.plazi.org/id/743FB854-0915-BC50-B1F1-CC4BFBFBFD81

treatment provided by

Felipe (2022-10-09 06:16:45, last updated by Plazi 2023-11-07 18:26:35)

scientific name

Palpalpaculla phyui Jiang & Li
status

sp. nov.

Palpalpaculla phyui Jiang & Li , sp. nov. ( Figs 49–51 View Figure 49 View Figure 50 View Figure 51 )

Holotype. Male (IZCAS-Ar42701Fo). Late Cretaceous amber from Hukawng Valley. Syninclusions include two dipterans.

Etymology. The species name is a popular Burmese boy’s name and means “white”; noun in apposition.

Diagnosis. The new species resembles P. pulcher (see Wunderlich, 2017: 135, figs 89–91, photos 66–67) by the bulb shape but can be distinguished by the embolus shape ( Figs 49A–B View Figure 49 , 51 View Figure 51 ). The embolus is tuber-shaped and straight in P. pulcher and the new species, but the embolus of the new species is more complex distally.

Description. Male. Total length 1.96; carapace 0.81 long, 0.52 wide; opisthosoma 1.15 long, 0.65 wide. Left palp: 0.46 (0.16 + 0.09 + 0.21), left leg I: - (- + - + - + 0.42 + 0.32), leg II: - (- + - + - + 0.33 + 0.28), leg III: - (- + - + - + 0.32+ 0.21), leg IV: - (- + - + - + 0.43 + 0.31); right palp: 0.43 (0.15 + 0.09 + 0.19), right leg I: - (0.72 + - + - + 0.41 + 0.33), leg II: - (0.46 + - + - + 0.35 + 0.33), leg III: - (0.41 + - + - + 0.33 + 0.30), leg IV: - (0.54 + - + - + 0.45 + 0.34). Eye sizes: ALE 0.06, AME 0.06, PLE 0.06, eyes interdistances not visible. Habitus as in Figs 50A–B View Figure 50 . Carapace ( Fig. 50A View Figure 50 ) sclerotized, reticulated, brown; cephalic part moderately raised; six eyes ( Fig. 50A View Figure 50 ) almost ovoid, AME = ALE = PLE, ALE and PLE adjacent; clypeus brown; clypeus vertical anteriorly; labium triangular, distally obtuse; sternum marginally rugose, posterior corner protruded. Opisthosoma ( Figs 50A–B View Figure 50 ): oval with sclerotized lateral plates, smooth, modified by tiny pits, covered with thin setae; ventral scutum rugose.

Palp ( Figs 49A–B View Figure 49 , 51 View Figure 51 ). Femur and patella with apophysis; cymbium small; bulb long, strongly swollen distally, bent once; embolus originates from apex of oval palpal bulb; embolus sclerotized, thickened.

Wunderlich, J. 2017. New and rare fossil spiders (Araneae) in Mid Cretaceous amber from Myanmar (Burma), including the description of new extinct families of the suborders Mesothelae and Opisthothelae as well as notes on the taxonomy, the evolution and the biogeography of the Mesothelae. In: Wunderlich, J. (ed.), Beitrage zur Araneologie, Vol. 10. Hirschberg, Germany. pp. 72 - 279.

Gallery Image

Figure 49. Palpalpaculla phyui Jiang & Li, sp. nov., holotype male (IZCAS-Ar42701Fo). A. Left palp, dorsal view; B. Right palp, dorsal view. Scale bars=0.05mm.

Gallery Image

Figure 50. Palpalpaculla phyui Jiang & Li, sp. nov., holotype male (IZCAS-Ar42701Fo), habitus. A. Dorsal view; B. Ventral view. Scale bars=0.50mm.

Gallery Image

Figure 51. Palpalpaculla phyui Jiang & Li, sp. nov., holotype male (IZCAS-Ar42701Fo), left palp, dorsal view. Scale bar=0.05mm.