First descriptions of the females of Cyclogomphus heterostylus Selys, 1854 and Ictinogomphus distinctus Ram, 1985 from India, with comments on the status of Cyclogomphus wilkinsi Fraser, 1926 (Odonata: Gomphidae).

The present paper deals with the first descriptions of the females of two endemic Gomphid dragonflies of India, namely Cyclogomphus heterostylus Selys, 1854 and Ictinogomphus distinctus Ram, 1985, based on the specimens collected from Maharashtra, India. Additionally present status of Cyclogomphus wilkinsi Fraser, 1926 in India is also discussed.

New record of Megalestes gyalsey Gyeltshen, Kalkman amp; Orr, 2017 (Zygoptera: Synlestidae) from India, with first description of female and larva.

Megalestes gyalsey Gyeltshen, Kalkman Orr, 2017 is recorded for the first time from India, extending the known geographic range of the species. This report is based on the collection of 5 individuals (4 males, 1 female) from Jang waterfall, Tawang, Arunachal Pradesh and 2 males from Neora Valley National Park, Kalimpong district, West Bengal. The female of M. gyalsey is described for the first time with notes on the variation in the male. A probable larva of the species is also described and illustrated.

First record of Indolestes cyaneus (Selys, 1862) from Vietnam and notes on its color variation (Odonata: Zygoptera: Lestidae).

First record of Indolestes cyaneus (Selys, 1862) from Vietnam with providing illustrations of its detailed structures, as well as notes on the coloration of the populations from Taiwan, Nepal and India.

A new species of freshwater crab of the genus Teretamon Yeo Ng, 2007 (Decapoda: Brachyura: Potamidae) from Arunachal Pradesh, northeastern India.

A new species of potamid crab of the genus Teretamon Yeo Ng, 2007, is described from Namdapha Tiger Reserve in Changlang district of Arunachal Pradesh, India. The new species, T. kempi n. sp., can be distinguished from its congeners by a distinct combination of carapace and gonopod characters: a relatively high carapace with a bilobed frontal margin; subquadrate sixth abdominal somite with nearly parallel lateral margins; and a relatively small G1 terminal segment with a semicircular to bluntly triangular dorsal flap. All known Teretamon species are compared with the new species, and a key for this genus is provided.