Clubiona yueya Yu & Li 2019
- Dataset
- On further species of the spider genus Clubiona Latreille, 1804 (Araneae, Clubionidae) from Xishuangbanna Rainforest, southwestern China
- Rank
- SPECIES
- Published in
- Yu, Hao, Li, Shuqiang (2019): On further species of the spider genus Clubiona Latreille, 1804 (Araneae, Clubionidae) from Xishuangbanna Rainforest, southwestern China. Zootaxa 4679 (2): 201-230, DOI: 10.11646/zootaxa.4679.2.1
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Araneae
- family
- Clubionidae
- genus
- Clubiona
- species
- Clubiona yueya
description
Description. Male (holotype): Total length 5.42; prosoma 1.29 long, 1.63 wide; opisthosoma 3.07 long, 1.45 wide. Prosoma (Figs 12 D – E), long-oval, narrowed behind ocular area, in profile slightly raised, highest just in front fovea; integument smooth, clothed with short fine hairs. Carapace yellowish-white, darker in ocular area, with irregular reticular pattern behind posterior eyes; fovea longitudinal and red. Chelicerae dark brown, with three promarginal and two retromarginal teeth. Labium and endites ash brown, longer than wide. Sternum yellowish. Eyes: AER slightly recurved, PER wider than AER and almost straight in dorsal view. AME dark, other eyes light; with black rings. Eye sizes and interdistances: AME 0.14, ALE 0.14, PME 0.14, PLE 0.12, AME – AME 0.09, AME – ALE 0.06, PME – PME 0.24, PME – PLE 0.17, MOQL 0.24, MOQA 0.33, MOQP 0.46. Legs light yellow, without distinct color markings. Leg formula: IV, II, I, III; leg measurements: I 5.93 (1.54, 2.49, 1.19, 0.72), II 6.82 (1.86, 2.79, 1.44, 0.74), III 5.43 (1.61, 1.90, 1.41, 0.51), IV 7.73 (2.14, 2.67, 2.33, 0.63). Opisthosoma (Figs 12 D – E) lanceolate, dorsal scutum indistinct, furnished with a thick tuft of hairs anteriorly; dorsum yellowish-white, posteriorly with dark purplish coloring which is formed into three longitudinal and linear markings; venter light yellow. Spinnerets dark. Palp (Figs 11 A – E): RTA dark, small but strong, digitiform, sharply pointed; bulb nearly pyriform, slightly excavated on prolatero-apical side to accommodate embolus; sperm duct indistinct; embolus spiniform, originated at 8 – 9 o’ clock position in prolateral view, its tip slightly overpasses the genital bulb; conductor with a slightly sclerotized and beak-shaped apex, its base part membranous; tegular apophysis large and heavily sclerotized, crescent-shaped in ventral view. Female (paratype IZCAS Ar 34711): Total length 5.13; prosoma 2.30 long, 1.74 wide; opisthosoma 2.77 long, 1.45 wide. General color darker than in male (Figs 12 F – G). Eye sizes and interdistances: AME 0.10, ALE 0.13, PME 0.12, PLE 0.11, AME – AME 0.04, AME – ALE 0.07, PME – PME 0.23, PME – PLE 0.15, MOQL 0.34, MOQA 0.32, MOQP 0.47. Legs yellowish-white, without distinct color markings. Leg formula: IV, II, I, III; leg measurements: I 4.77 (1.18, 2.08, 0.96, 0.56), II 5.01 (1.20, 2.10, 1.04, 0.66), III 3.93 (1.05, 1.45, 1.02, 0.41), IV 6.22 (1.27, 2.36, 1.85, 0.74). Epigyne (Figs 12 A – C): Epigynal plate slightly wider than long, margin not rebordered; atrium large, anterior atrial margin more or less “ M ” shaped; atrium about three times wider than long, blocked by mating plug before cleaning; two copulatory openings located at basolateral atrial borders; spermathecae consisting of bean-shaped proximal part and digitiform distal part; bursae globular and translucent, surface wrinkled and ribbed.
description
Figs 11 – 12
diagnosis
Diagnosis. Males of Clubiona yueya sp. nov. can be easily distinguished from those of all other species of the C. japonica group by the crescent-shaped tegular apophysis (Fig. 11 D) and the inconspicuous sperm duct (Figs 11 A – E) (vs. tegular apophysis absent and sperm duct distinct in almost all the C. japonica group species, such as Clubiona zhanggureni sp. nov.; Figs 13 C – E).). Females of C. yueya sp. nov. are similar to C. digitata Dankittipakul, 2012 (Dankittipakul et al. 2012: 52, figs 4 – 5, 17), C. filifera Dankittipakul, 2008 (Dankittipakul et al. 2012: 57, figs 18 – 19, 23 – 24), and C. grucollaris Yu, Zhang & Chen, 2017 (Yu et al. 2017 a: 4, figs 13 – 14, 18 – 19) by the broad atrium with M-shaped anterior margin, and the globular bursae, but can be recognized by the small and bean-shaped spermathecae (Fig. 12 C) (relatively long and tubular spermathecae in the latter three species). In addition, the new species can be consistently separable by its unique habitus: dorsal opisthosoma with three longitudinal bands (Figs 12 D, F).
distribution
Distribution. Presently known only from Xishuangbanna.
etymology
Etymology. The specific name is derived from the Chinese pinyin ' yuè yá', which means ' crescent moon', referring to the crescent-shaped tegular apophysis; noun in apposition.
materials_examined
Type material. Holotype: ♂ (IZCAS Ar 34709), CHINA: Yunnan: Xishuangbanna, Mengla County, Menglun Town, Xishuangbanna Tropical Botanic Garden, 300 Acre-feet Bamboo plantation (N 21 º 53.901 ', E 101 º 16.884 ', 515 m), 7 August 2018, leg. H. Yu and Z. G. Chen (Yu _ 20180807 _ Fogging- 9). Paratypes: 1 ♂, 3 ♀ (IZCAS Ar 34710 – 34713), same data as holotype.
Name
- Homonyms
- Clubiona yueya Yu & Li 2019