Vietnobates

Pešic, V. & Smit, H., 2016, New records of water mites from Southeast Asia (Acari: Hydrachnidia) with the description of two new genera and 12 new species, Acarologia 56 (3), pp. 393-433 : 407

publication ID

https://doi.org/ 10.1051/acarologia/20162251

persistent identifier

https://treatment.plazi.org/id/591B87EF-9908-2B39-BD71-FAC6FC7BFC4D

treatment provided by

Marcus

scientific name

Vietnobates
status

 

Genus Vietnobates n. gen

Diagnosis — Character states of family Hygrobatidae (see Cook 1974). Dorsum and posterior venter without sclerotized muscle attachment plates. Coxae in four groups; Cx-I separated medially. Gnathosoma with a posterior anchoral process extending beyond posterior end of Cx-I+II. Glandular opening on Cx-IV near suture line of Cx-III/IV. Cx- IV posteromedial margin with short posterior projections, apodemes extending anteriorly from these projections not extending to Cxgl-IV. Genital field with three pairs of acetabula. P-2 without a ventral projection and ventral margin without denticles; P- 4 lacking a medial sword seta and a dense dorsodistal setation, P-4 ventral setae at the same level, in distal third of segment. I-L-5 at distal end with a pair of thickened, pointed setae, I-L-6 not curved.

Type species — Vietnobates oryzae n. sp.

Etymology — The genus name is derived from the country of the type locality.

Remarks — The new genus resembles a number of Australiobates -like genera from Australia in the elongated anchoral process, e.g., Australiobates Lundblad, 1941 , Coaustraliobates Cook, 1974 , Pseudoaustraliobates Smit, 2009 . Not any of these genera are known from the Oriental region. The combination of the following characters 1) gnathosoma with a posterior anchoral process exceeding posterior end of Cx-I+II, 2) Cx-IV posteromedial margin with short projections, apodemes extending anteriorly from these projections not extending to Cxgl- 4, 3) P-4 ventral setae at the same level, in distal third, medial sword seta absent, and 4) I-L-5 at distal end with a pair of thickened, pointed setae, separates the new genus from all other Australiobates - like mites.