A new species of Forcepsioneura Lencioni, 1999 in honor to Queen Elizabeth II (Odonata: Protoneuridae)
Metaleptobasis daiglei sp. nov. from Panama (Odonata: Coenagrionidae)
Psaironeura jeronimoi (Odonata: Zygoptera: Coenagrionidae) sp. nov. from the Brazilian Amazon rainforest, with a key for species of tenuissima group, and discussion on the significance of the genital ligula to the taxonomy of the group
Dragonflies of Cusuco National Park, Honduras; checklist, new country records and the description of a new species of Palaemnema Selys, 1860 (Odonata: Platystictidae)
Description of the final larval stadium of Miocora aurea (Ris, 1918) (Odonata: Polythoridae)
Revealing the Odonatofauna of Northeastern Brazil: new Heteragrion Selys, 1862 (Odonata: Heteragrionidae) species from Bahia state
A new species of Gomphoides Selys, 1854 (Odonata: Gomphidae) from the Environmental Protection Area of the Uberaba River, Brazil
Two new Telebasis Selys, 1865 species (Odonata: Zygoptera: Coenagrionidae) from Western Colombia
Description of the larva of Indocnemis orang (Förster in Laidlaw, 1907) (Odonata: Platycnemididae: Calicnemiinae) from Thailand, with larval key to the known genera of the family Platycnemididae in Asia
First description of the larva of Archineura incarnata (Karsch, 1891) with notes on the biology (Odonata: Calopterygidae)
Descriptions of the larvae of Huosoma Guan, Dumont, Yu, Han & Vierstraete, 2013 from China (Odonata: Coenagrionidae)
Burmagomphus chaukulensis, a new species of dragonfly (Odonata: Anisoptera: Gomphidae) from the Western Ghats, Maharashtra, India
The Oracle of Delphi—a molecular phylogenetic approach to Greek Cordulegaster Leach in Brewster, 1815 (Odonata: Anisoptera: Cordulegastridae)
Paracordulia calcarulata, new species from Ecuador and notes on the genus Paracordulia Martin, 1907 (Odonata: Anisoptera: Corduliidae s. str.)
The rediscovery of Machadagrion garbei (Santos, 1961) (Odonata: Coenagrionidae) with notes on the hitherto unknown female
Heteragrion calafatiensis (Odonata: Heteragrionidae) sp. nov. from Northern Brazil
A new species of Progomphus Selys, 1854 (Odonata: Anisoptera: Gomphidae) from Minas Gerais state, Southeastern Brazil
Ischnura elegans malikovae subspecies nova (Odonata, Coenagrionidae) from the Far East of Eurasia, with discussion of other possible subspecies
The damselfly genus Megaloprepus (Odonata: Pseudostigmatidae): Revalidation and delimitation of species-level taxa including the description of one new species
Analysis of male Leptagrion Selys, 1876 sensu lato (Odonata: Coenagrionidae) with description of four new genera and a new species
Danowhetaksa gen. nov. with two species from the early Eocene Ølst Formation from Denmark, the first Palearctic Whetwhetaksidae (Odonata: Cephalozygoptera)
Kishenehna prima, a new genus and species of darner dragonfly (Odonata, Aeshnidae, Gomphaeschninae) from the early middle Eocene Kishenehn Formation of Montana, USA
Untangling the waterfall damsels: a review of the Mesoamerican genus Paraphlebia Selys in Hagen, 1861 (Odonata: Thaumatoneuridae) with descriptions of 11 new species
Ischnura praematura sp. nov. (Odonata: Zygoptera: Coenagrionidae): a species from Yunnan (China) whose females mate in the teneral state
Nesobasis rito sp. nov. (Zygoptera: Coenagrionidae), a new species of forest damselfly from Vanua Levu, Fiji
Drepanosticta hansruedii Phan, 2021, a new replacement name for Drepanosticta wildermuthi Phan, 2021 (Odonata: Zygoptera: Platystictidae)
Variation in Fukienogomphus prometheus (Lieftinck, 1939) reveals Stylurus takashii (Asahina, 1966) as a junior synonym, with discussion on the status of F. choifongae Wilson & Tam, 2006 (Odonata: Gomphidae)
Leptagrion jeromei (Odonata: Coenagrionidae) spec. nov. from Brazil, with notes on L. andromache Hagen in Selys, 1876
A new Idioneura Selys, 1860 for the Brazilian fauna with analysis of the other species (Odonata: Protoneuridae)
A review of the Drepanosticta carmichaeli-group, with the description of D. wildermuthi sp. nov. from the Central Highlands of Vietnam (Odonata: Zygoptera: Platystictidae)
The genus Ophiogomphus Lieftinck, 1964 in Vietnam, with descriptions of the female of O. minimus Karube, 2014 and O. phantoani sp. nov. (Odonata: Gomphidae)
Morphological description of the final instar larvae of Argia reclusa Selys, 1865 and Tigriagrion aurantinigrum Calvert, 1909 from Southeastern Brazil (Odonata: Coenagrionidae)
Description of the larva of Argia cuprea (Hagen, 1861) with notes on its phylogenetic affinities (Odonata: Coenagrionidae)
The head of Cephalozygoptera (Odonata)
The genus Planaeschna McLachlan, 1895 and its subgroupings in Vietnam, with descriptions of three new species (Odonata: Aeshnidae)
DENNIS R. PAULSON & MILEN MARINOV (2021) Zootaxa 20th Anniversary Celebration: Odonata section. Zootaxa, 4979: 218–221.
