Cymatopus thaicus, Grootaert & Meuffels, 2001

Samoh, Abdulloh, Satasook, Chutamas & Grootaert, Patrick, 2018, New data on the marine genera Cymatopus Kertèsz and Thambemyia Oldroyd (Insecta, Diptera, Dolichopodidae) from rocky shores in southern Thailand with the description of a new species, Raffles Bulletin of Zoology 66, pp. 258-267 : 259

The thaicus -group

The thaicus -group was informally proposed by Grootaert & Meuffels (2001) based on the smaller size of the specimens, the unmodified shape of the wings and the absence of fields of microtrichia on the wing membrane. The apparent lack of a confident morphological synapomorphy raises doubts about the monophyly of this group. Additionally, it is genetically not supported either, as can be seen on a neighbour joining tree based on the COI gene ( Fig. 10 ). Yet, the group-name is provisionally still applied. It is represented by two species in Thailand: C. thaicus and C. mayakunae , new species.

Figures

Fig. 10. Evolutionary relationships of taxa of Cymatopus based on NGS bacodes (Meier et al., 2016).