Coddingtonia erhuan
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Ordo: Araneae
Familia: Theridiosomatidae
Genus: Coddingtonia
Name
Coddingtonia erhuan Feng & Lin, 2019 sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
Holotype ♀, paratypes 5♀ and 1♂ juv. (NHMSU) CHINA: Yunnan Province, Gaoligongshan, the west of Nujiang River, Shibali Village, 27°08.28'N, 98°49.34'E, ca. 1850 m, 19 Aug. 2018, Y. Lin et al. leg.; Two paratypes 1♂ juv. and 1♀ used for sequencing, same data as preceding, GenBank: MN211319 and MN211318.
Other material examined
2♀ (NHMSU) CHINA: Yunnan Province, Gongshan County, Sijitong Village, on the banks of Nujiang River, 8°03.27'N, 98°35.76'E, ca. 1620 m, 12 Aug. 2018; 1♀ (NHMSU) CHINA: Yunnan Province, Longling County, Mangkuan Town, Baihualing Village, Zaotang River, subtropical broadleaf forest, 25°18.27'N, 98°48.04'E, ca. 1640 m, 21 Aug. 2018; 2♀ (NHMSU) CHINA: Yunnan Province, Longling County, Longjiang Town, Xiaoheishan Nature Reserve, Gucheng Hill, broadleaved deciduous forest, in surface leaf litter, 24°49.73'N, 98°45.55'E, ca. 2010 m, 22 Aug. 2018; 2♀ (NHMSU) CHINA: Yunnan Province, Gongshan County, the road of from Bingzhongluo Town to Puhuasi Temple, broadleaved deciduous forest litter, 28°01.42'N, 98°36.13'E, ca. 1870 m, 12 Aug. 2018, Y. Lin et al. leg.; 1♀ (NHMSU) CHINA: Yunnan Province, Fugong County, Shangpa Village, broadleaves deciduous forest, 26°53.66'N, 98°51.16'E, ca. 1470 m, 2 Jul. 2016, Y. Li leg.
Etymology
Formed from the Chinese words for two (èr 二) and circle (huán 环), referring to the paired loops of copulatory ducts (Fig. 4E); noun.
Diagnosis
This new species can be distinguished from other congeners by the 2 coils of the unilateral copulatory ducts around the spermathecae (Fig. 4E–F).By having a posterior tubercle on the abdomen (Fig. 4A–C) it differs from C. huifengi sp. nov. (Fig. 2A–D), C. anaktakun and C. discobulbus (Labarque and Griswold 2014[1]: figs 5A–C, 6A–C, 7A–C).
Description
Female (holotype): Carapace pear-shaped, black. Sternum tan. Legs dark brown. Abdomen obovate with posterior tubercle, dark black, ventrally darker than dorsally, covers sparse setae (Fig. 4A–C). Measurements: Total length 1.66. Carapace 0.62 long, 0.60 wide. Clypeus 0.14 high. Sternum 0.37 long, 0.38 wide. Abdomen 1.21 long, 1.04 wide. Length of legs: I 2.03 (0.65, 0.25, 0.43, 0.39, 0.31); II 1.80 (0.55, 0.23, 0.38, 0.34, 0.30); III 1.39 (0.42, 0.18, 0.26, 0.28, 0.25); IV 1.78 (0.55, 0.23, 0.40, 0.34, 0.26).
Epigyne (Fig. 4D–F): plate weakly sclerotized, nearly rectangular, with an indistinct central pit and pair of posterolateral pockets. Spermathecae barely visible through the integument; lateral wings well developed, with sclerotized glandular ducts in the dorso-medial; spermathecae globose, closely spaced and almost adjacent; copulatory ducts form a half loop in the ventral later wings, followed by 2 complete loops surround the spermathecae, and finally connect to the spermathecae (Fig. 4E); fertilization ducts short and twisty, arise from the dorsal side of spermathecae (Fig. 4F).
Male. unknown.
Distribution
Known only from the type locality (Fig. 6).
Original Description
- Feng, C; Lin, Y; 2019: Three new species of the genus Coddingtonia from Asia (Araneae, Theridiosomatidae) ZooKeys, 886: 113-126. doi
Images
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Other References
- ↑ Labarque F, Griswold C (2014) New ray spiders from Southeast Asia: the new Philippine genus Tagalogonia gen. nov. and continental genus Coddingtonia Miller, Griswold and Yin, 2009 (Araneae: Theridiosomatidae), with comments on their intergeneric relationships. In: Williams G Gosliner T (Eds) The Coral Triangle: The 2011 Hearst Philippine Biodiversity Expedition.California Academy of Sciences, San Francisco, 407–425.
