The relationships of the 3 major clades of winged insects-Ephemeroptera, Odonata, and Neoptera-are still unclear. Many morphologists favor a clade Metapterygota (Odonata +Neoptera), but Chiastomyaria (Ephemeroptera + Neoptera) or Palaeoptera (Ephemeroptera +Odonata) has also been supported in some older and more recent studies. A possible explanation for the difficulties in resolving these rela...

In 2018 and 2019, quantitative aquatic macroinvertebrate samplings were carried out in the river network of Bükkösdi-víz (Mecsek Mountain). The identification 325,865 specimens originated from 40 sampling sites resulted occurrences 125 different species belonging to 12 higher taxa (Gastropoda – 9, Bivalvia 1, Hirudinea 4, Malacostraca 6, Ephemeroptera 16, Odonata 12, Plecoptera 3, Heteroptera 1...

The last stadium larva of Microgomphus thailandica is described, illustrated and compared with the larvae of congeneric species based on reared specimens collected from the Phachi headwater stream, Ratchaburi province, Thailand. The female adult of this species is described for the first time from a reared specimen from the same locality.

Dragonflies and damselflies (Odonata) are insects with an important role for biological control environmental quality indicators. Odonata scattered in various types of habitats, especially those associated freshwater ecosystems. The aim this research is to study the diversity odonata habitat Leuwiliang District, Bogor Regency. was conducted on 10 a total 1289 observation lines. In found 23 spec...

odonata fauna is poorly known in iran and most of the previous studies deal with northern parts of the country, studying adult specimens. we sampled karun river for aquatic insects in the city of ahvaz in south-west of iran during 2009–2011. as a result, 40 nymphs of one damselfly species and four dragonfly species of the order odonata comprising five genera from four families were recorded. al...

The female of Cordulegaster vanbrinkae is described and illustrated, basing on four specimens collected in Gīlān and Māzandarān Provinces, northern Iran. Their characters and variability are shown and compared with females of other Cordulegaster species.

Phaenandrogomphus safei is described from a male from the Kalabakan Forest Reserve, Sabah, Malaysian Borneo. It is the first species of Phaenandrogomphus to be recorded from Borneo. Onychogomphus treadawayi, known from Busuanga Island in the Palawan region of the Philippines, is transferred to Phaenandrogomphus. 

The Mesoamerican damselfly genus Amphipteryx includes four species: Amphipteryx agrioides (Mexico), A. chiapensis (Mexico), A. meridionalis (Honduras) and A. nataliae (Verapaz, Guatemala). We describe a fifth species, Amphipteryx jaroli, from the cloud forest in Pico Bonito National park, Honduras. Additionally we include an up to date key of all species in the genus for both sexes.

Wana Wisata Curug Cipendok merupakan wana wisata yang memiliki keanekaragaman hayati. Salah satu fauna ada di ini yaitu capung (Ordo: Odonata). Tujuan dari penelitian adalah untuk mengetahui spesies dan indeks Odonata Cipendok.Jenis deskriptif observasional dengan teknik purposive menentukan stasiun pengambilan sampel berdasarkan perbedaan habitat. Pengumpulan menggunakan accidental sampling. P...