Furcembolus inzaliae 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 : 15-18

publication ID

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

publication LSID

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

persistent identifier

https://treatment.plazi.org/id/743FB854-0928-BC74-B1F1-C8DBFF14FD57

treatment provided by

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

scientific name

Furcembolus inzaliae Jiang & Li
status

sp. nov.

Furcembolus inzaliae Jiang & Li , sp. nov. ( Figs 13–15 View Figure 13 View Figure 14 View Figure 15 )

Holotype. Male (IZCAS-Ar42687Fo). Late Cretaceous amber from Hukawng Valley. Syninclusion includes one beetle. Etymology. The species name is a popular Burmese girl’s name and means “prayer, offerings”; noun in apposition.

Diagnosis. This new species resembles F. crassitibia Wunderlich 2017 : (see Wunderlich, 2017: 129, fig. 78) by the absence of an embolic apophysis but can be distinguished by the presence of a tibial apophysis and the shape of the bulb. The bulb of the new species bent three times at a right angle, while that of F. crassitibia folds two times at a right angle.

Description. Male. Total length 2.59; carapace 0.88 long, 0.54 wide; opisthosoma 1.71 long, 0.91 wide. Left palp: 1.22 (0.56 + 0.18 + 0.48), left leg I: - (2.48 +0.39 + - + - + V), leg II: - (1.36 + 0.37 + - + - + -), leg III: 3.59 (1.01 + 0.21 + 1.09 + 0.87 + 0.41), leg IV: - (1.39 + 0.28 + - + 1.34 + 0.52); right palp: - (- + 0.23 + -), right leg I–IV absent. Eye sizes and interdistances: ALE 0.07, PME 0.08, PLE 0.09, PME–PME 0.06. Habitus as in Figs 14A–B View Figure 14 . Carapace ( Fig. 14A View Figure 14 ) finely granulate, margin distinctly serrate, cephalic part of carapace noticeably highest posteriorly; eyes ( Fig. 14C View Figure 14 ) ovoid, PLE> PME> ALE; labium triangular, distally obtuse; sternum granulate. Opisthosoma ( Figs 14A–B View Figure 14 ): Abdomen oval with sclerotized lateral plates, smooth, modified by tiny pits, covered with thin setae; ventral scutum rugose; three tarsal claws ( Fig. 14D View Figure 14 ), with a single pectinate row of teeth. Spinnerets not visible.

Palp ( Figs 13A–B View Figure 13 , 15 View Figure 15 ). Femur more than 3 times longer than patella; patella short, ca. 0.1; tibia swollen, about two times wider than femur, with triangular apophysis in ventral view; cymbium small and compressed; bulb long, oval, proximally slightly swollen, bent, forming three right angles; embolic apophysis originates from middle of embolus, hookshaped.

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 13. Furcembolus inzaliae Jiang & Li, sp. nov., holotype male (IZCAS-Ar42687).A. Left palp, retrolateral view; B. Right palp, dorsal view. Scale bars=0.10mm.

Gallery Image

Figure 14. Furcembolus inzaliae Jiang & Li, sp. nov., holotype male (IZCAS-Ar42687). A–B. Habitus, lateral view; C. Ocular area, dorsal view; D. Tarsus and claw, lateral view. Scale bars: A–B=0.50mm; C=0.10mm; D =0.05mm.

Gallery Image

Figure 15. Furcembolus inzaliae Jiang & Li, sp. nov., holotype male (IZCAS-Ar42687), left palp, retrolateral view. Scale bar = 0.10mm.

V

Royal British Columbia Museum - Herbarium