Dario tigris and Dario melanogrammus, two new species of miniature chameleon fishes from northern Myanmar (Teleostei: Badidae)
Two new species of Branchinotogluma (Polynoidae: Annelida) from chemosynthesis-based ecosystems in Japan
Hyporheic zone, a blind spot: Discovery of the larva of Kisaura (Trichoptera: Philopotamidae) from Japan
The Nazeris fauna of the Leigong Mountain, Guizhou, China (Coleoptera, Staphylinidae, Paederinae)
Two new Telebasis Selys, 1865 species (Odonata: Zygoptera: Coenagrionidae) from Western Colombia
A new species of the genus Pseudohampsonella Solovyev & Saldaitis (Lepidoptera: Limacodidae) from Xizang Autonomous Region, China
DNA barcoding of Sclerogibbidae and confirmation of the opposite sexes of Sclerogibba berlandi Benoit (Hymenoptera: Sclerogibbidae)
A new species of Megaglena Peters & Edmunds, 1970 (Ephemeroptera: Leptophlebiidae) from Tamil Nadu, India
A new diminutive subterranean eel loach species of the genus Pangio (Teleostei: Cobitidae) from Southern India
The male of Estigena wallacei Spitsyn et al., 2019 (Lepidoptera: Lasiocampidae)