Diaea mikhailovi Zhang, Song & Zhu, 2004

Guo, Chen-Hui & Zhang, Feng, 2014, First description of the male of Diaea mikhailovi (Araneae: Thomisidae), Zootaxa 3815 (3), pp. 447-450 : 447-449

publication ID

https://doi.org/ 10.11646/zootaxa.3815.3.11

publication LSID

lsid:zoobank.org:pub:6999F7D6-7644-46C7-B86D-8D68E4E19179

DOI

https://doi.org/10.5281/zenodo.6123517

persistent identifier

https://treatment.plazi.org/id/E07887BC-3142-FFDE-129B-AF7086B9F808

treatment provided by

Plazi

scientific name

Diaea mikhailovi Zhang, Song & Zhu, 2004
status

 

Diaea mikhailovi Zhang, Song & Zhu, 2004 View in CoL

( Figs 1–10 View FIGURES 1 – 6 View FIGURES 7 – 10 )

Diaea mikhailovi Zhang et al. 2004: 7 View in CoL , fig. 1 (♀).

Type material: Holotype (by original designation): female, Xiaowutai Mountains, Yu County, Hebei Province, China, 11 July 1999, Feng Zhang leg. ( MHBU, examined).

Other material examined. CHINA: Hebei Province: Yu County, Xiaowutai Mountains (N 39°58′, E 114°49′), 8♂ 13♀, Shuigou Valley, 23 August 2012, Feng Zhang leg; 10♂ 10♀, Shuigou Valley, 14 August 2013, Long Liu leg; 4♂ 4♀, Zhengjiagou Valley, 2 September 2013, Zhi-Yue Li leg.

Diagnosis. This species is similar to D. simplex Xu, Han & Li, 2008 ( Xu et al. 2008: 14, figs 1a–e) and D. gyoja Ono, 1985 ( Ono 2009: 523, figs 274–277) in having similar RTA and VTA in the males, but can be distinguished from D. simplex by the absence of an intermediate tibial apophysis, and can be distinguished from D. gyoja by the embolus with an ear-shaped base that extends about two loops along the margin of tegulum. The female can be distinguished by the epigyne with a triangular hood anteriorly, the distinct, medially situated, contiguous copulatory openings, and the long and twisted copulatory ducts.

Description. Male: Total length 3.30–4.55 (n=22). One specimen measured: body length 3.97; cephalothorax 1.88 long, 1.89 wide; abdomen 2.18 long, 1.35 wide ( Fig. 2 View FIGURES 1 – 6 ). Carapace slightly convex, two margins yellow green and medially yellowish. Clypeus 0.19 high. Both eye rows recurved. Eye sizes and interdistances: AME 0.07, ALE 0.11, PME 0.07, PLE 0.07; AME–AME 0.16, AME–ALE 0.13, PME–PME 0.22, PME–PLE 0.27. MOA 0.35 long, front 0.30 wide, back 0.36 wide. Chelicerae yellowish, without teeth. Endites and labium yellow, sternum margins yellow green, medially yellowish. Labium longer than wide. Sternum nearly as long as wide. Legs yellowish with sparse spines. Leg I, II with conspicuous red brown annuli in the distal parts of femur, patella, tibia, metatarsus and tarsus. Leg measurements: I 10.83 (3.14, 0.84, 2.97, 2.83, 1.05); II 9.83 (2.98, 0.69, 2.57, 2.41, 1.18); III 5.21 (1.68, 0.54, 1.33, 1.02, 0.64); IV 5.34 (1.76, 0.53, 1.47, 1.01, 0.57), leg formula: 1243. Abdomen ( Fig.2 View FIGURES 1 – 6 ) nearly oval, dorsally white with a circle of red brown markings at the rim, and 6 pairs of thick dark brown spots in the markings symmetrically. Cardiac pattern and muscular impressions visible. Abdomen ventrally yellowish.

Palp ( Figs 5–8 View FIGURES 1 – 6 View FIGURES 7 – 10 ). VTA short, digitiform; RTA long and wide, with a sharp tip, and with a blunt median process. Bulb flat and rounded; embolus long filiform, arising near the centre of tegulum, tapering gradually in about two loops around the tegulum, terminating on retrolateral side.

Female: Total length 3.72–4.77 (n=27). One specimen measured: body length 4.77, cephalothorax 1.84 long, 2.04 wide; abdomen 2.89 long, 2.33 wide ( Fig. 1 View FIGURES 1 – 6 ). Eye sizes and interdistances: AME 0.07, ALE 0.11, PME 0.07, PLE 0.07; AME–AME 0.22, AME–ALE 0.17, PME–PME 0.28, PME–PLE 0.29. MOA 0.39 long, front 0.37 wide, back 0.42 wide. Clypeus 0.21 high. Leg measurements: I 7.95 (2.39, 0.93, 2.01, 1.69, 0.93); II 7.81 (2.43, 0.84, 2.03, 1.60, 0.91); III 4.31 (1.44, 0.47, 1.12, 0.70, 0.58); IV 4.48 (1.47, 0.53, 1.15, 0.80, 0.53), leg formula: 1243. Abdomen ( Fig. 1 View FIGURES 1 – 6 ) nearly round, sides white, medially greyish with symmetrical white markings. Other characters as in male.

Epigyne/vulva ( Figs 3–4 View FIGURES 1 – 6 , 9–10 View FIGURES 7 – 10 ). Epigyne slightly sclerotized, anteriorly with a triangular hood. Atrium transparent and slightly deepened. Septum narrow. Copulatory openings in the midline of atrium. Copulatory ducts twisted about 2.5 coils; spermathecae kidney-shaped.

Distribution. China (Hebei).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Thomisidae

Genus

Diaea

Loc

Diaea mikhailovi Zhang, Song & Zhu, 2004

Guo, Chen-Hui & Zhang, Feng 2014
2014
Loc

Diaea mikhailovi Zhang et al. 2004 : 7

Zhang 2004: 7
2004
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