Drepanosticta vietnamica : Asahina 1997
- Dataset
- A review of the Drepanosticta carmichaeli-group, with the description of D. wildermuthi sp. nov. from the Central Highlands of Vietnam (Odonata: Zygoptera: Platystictidae)
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Odonata
- family
- Platystictidae
- genus
- Drepanosticta
- species
- Drepanosticta vietnamica
description
(Figure 8 a – f)
description
Notes. Drepanosticta vietnamica is a new addition to the Laotian fauna. This species was originally described from northern Vietnam by Asahina (1997) based on two male specimens with one figure of the head and thorax (in lateral view) and one figure of the anal appendages (Figs 1 – 2 in Asahina 1997). Recently Dow et al. (2018) provided figures of D. vietnamica based on the paratype male (with the same collection date and location as the holotype). The body coloration and structure of the Laotian specimens match well with the original description of D. vietnamica (Asahina 1997). This species differs from all other species in the D. carmichaeli – group by the yellowish markings dorsally on S 9 – 10 (Fig. 8 c), as opposed to these segments black or with blue markings in other members of the group. However this difference may well not be reliable since the yellow marking in dorsal S 9 – 10 of male D. vietnamica might be due to the preservation (for instance, see the case of the paratype males of D. wildermuthi sp. nov.). Within the D. carmichaeli - group the structure of the anal appendages of D. vietnamica is most similar to D. carmichaeli and D. emtrai with a distinct ventral heel on the cerci (compare Figs 3 d, 5 b) (Fig. 8 d). The female of D. vietnamica remains unknown.
distribution
Distribution. Vietnam (Lai Chau Province) & Laos (Oudomxay & Xiang Khuoang Provinces) (Fig. 13).