Allomedmassa matertera

Jin, Chi, Zhang, Hongli & Zhang, Feng, 2019, First records of the corinnid genera Allomedmassa Dankittipakul & Singtripop, 2014 and Medmassa Simon, 1887 from China, with the description of a new genus (Araneae: Corinnidae), Zootaxa 4585 (3), pp. 459-477: 467

publication ID

https://doi.org/10.11646/zootaxa.4585.3.3

publication LSID

lsid:zoobank.org:pub:1BA367F9-0A0D-4CC6-9D94-D947459723BA

persistent identifier

http://treatment.plazi.org/id/03D287C6-FF9F-743F-87B9-FC12FD0C4A34

treatment provided by

Plazi

scientific name

Allomedmassa matertera
status

sp. nov.

Allomedmassa matertera  sp. nov. (Řǖflđ)

Figs 6View FIGURE 6, 7View FIGURE 7

Type material. Holotype:GoogleMaps  ♀, CHINA: Hunan Province: Gongshan County, Dulongjiang Township, Gaoligong Moutain   GoogleMaps (27°40.7214′N, 98°18.4578′E), 1433 m a.s.l., Malaise trap, 16 August 2016, leg. M.J. Luo.

Etymology. The specific name is a Latin noun meaning "aunt". It refers to the resemblance of the new species to A. mae  , whose name mae  means "mother".

Diagnosis. The new species can be distinguished from A. mae  by: 1) the anterior part of copulatory ducts, which are narrower ( Figs 6FView FIGURE 6, 7BView FIGURE 7) than those of A. mae  ( Dankittipakul & Singtripop 2014: figs 12, 19); 2) accessory glands shorter ( Fig. 7BView FIGURE 7) than those of A. mae  ( Dankittipakul & Singtripop 2014: fig. 19); 3) chelicerae with six retromarginal teeth, whereas with only three in A. mae  . Male unknown.

Description. Female ( Figs 6View FIGURE 6, 8View FIGURE 8 A–B). Holotype: body 15.20 long; carapace 6.69 long, 5.18 wide, width/length = 0.77; abdomen 8.51 long, 5.73 wide. Body colouration as in genus description. Diameters of eyes: AME 0.39, ALE 0.29, PME 0.32, PLE 0.30. Eye interdistances: AME–AME 0.25, AME–ALE 0.19, ALE–ALE 1.39, PME– PME 0.39, PME–PLE 0.48, PLE–PLE 1.96, ALE–PLE 0.17. OAW 2.24, CRW 3.34, OAW/CRW = 0.67. CRW/ carapace width = 0.64. MOA 0.78 long, front width 1.01, back width 0.98. Clypeus height 0.35, 0.90 times of AME diameter. Chelicerae with three promarginal teeth, six retromarginal teeth. Labium 1.17 long, 0.98 wide. Sternum 3.17 long, 2.60 wide. Measurements of legs: I 19.33 (5.61 + 2.59 + 4.68 + 4.18 + 2.27), II 18.80 (5.50 + 2.41 + 4.44 + 4.23 + 2.22), III 15.98 (4.68 + 2.16 + 3.59 + 3.66 + 1.86), IV 20.66 (5.63 + 2.27 + 4.95 + 5.87 + 1.94). Leg formula: 4123. Leg spination: femora I pl 1 do 2, II pl 1–2 do 2, III–IV pl 1 do 3 rl 1; tibiae I–II plv 4 rlv 4, III pl 2 rl 2 plv 2 rlv 2, IV pl 2 rl 2 plv 2 rlv 1; metatarsi I–II plv 2 rlv 2, III–IV plv 2 rlv 2 vt 3.

Epigyne ( Figs 6View FIGURE 6 E–F, 7A): epigynal region heavily sclerotized; copulatory openings large and oval, with inverted V-shaped arrangement. Vulva ( Figs 6GView FIGURE 6, 7BView FIGURE 7): copulatory ducts thick, anterior part slightly narrower than width of copulatory openings; accessory glands small and short; spermathecae reniform, almost transverse; fixed sclerites not fused posteriorly.

Distribution. China (Yunnan) ( Fig. 12View FIGURE 12).