Redefinition of Mesoleptobasis Sjöstedt 1918 with the inclusion of Metaleptobasis cyanolineata (Wasscher 1998) comb. nov. and description of a new species, Mesoleptobasis elongata (Odonata: Coenagrionidae)

Metaleptobasis cyanolineata es transferida a Mesoleptobasis y una nueva especie, Mesoleptobasis elongata, es descripta. El género es diagnosticado por la combinación de frente redondeada, pronoto marcadamente modificado con largos procesos al menos en machos, patrón de coloración pterotorácico sin raya medio-dorsal oscura, pretarso con diente suplementario vestigial o ausente, vena descendente del cuadrángulo formando una línea recta hasta el margen del ala, y lígula genital con un pequeño pliegue interno y con proyecciones a modo de espinas en los margenes laterales distalmente a la flexura. Se proveen ilustraciones, mapa y clave para sus especies.Metaleptobasis cyanolineata is transferred to Mesoleptobasis and a new species, Mesoleptobasis elongata, is described. The genus is diagnosed by the combination of rounded frons, highly modified pronotum with long processes at least in males, pterothoracic color pattern lacking dark mid-dorsal stripe, pretarsus with supplementary tooth vestigial or absent, vein descending from quadrangle forming an unbroken line to wing margin, and genital ligula with a small inner fold and with spine-like projections on lateral margins distal to flexure. Its species are illustrated, mapped, and keyed.Fil: Garrison, Rosser W.. California Department of Food and Agriculture; Estados UnidosFil: Von Ellenrieder, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentin

Drepanoneura gen. nov. for Epipleoneura letitia and Protoneura peruviensis, with description of eight new Protoneuridae from South America (Odonata: Protoneuridae)

A new genus, Drepanoneura (type species Drepanoneura loutoni sp. nov.), is described to include Epipleoneura letitia Donnelly, Protoneura peruviensis Fraser, and six new congeneric species from South America: D. donnellyi, D. flinti, D. janirae, D. loutoni, D. muzoni, and D. tennesseni. Drepanoneura is similar to Epipleoneura and Epipotoneura in venational characters, but differs from them in morphology of male cercus, genital ligula, female pronotum, and epiproct. A new species of Epipleoneura from Venezuela, E. demarmelsi, and a new species of Epipotoneura from Brazil, E. machadoi, are described, and diagnostic illustrations for the poorly known Epipotoneura nehalennia Williamson are also presented. A generic characterization, diagnoses, and keys for species of Drepanoneura are provided, as well as diagnostic illustrations and distribution maps for all involved species.Fil: Von Ellenrieder, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; ArgentinaFil: Garrison, Rosser W.. California Department of Food and Agriculture; Estados Unido

Oreiallagma gen. nov. with a redefinition of Cyanallagma Kennedy 1920 and Mesamphiagrion Kennedy 1920, and the description of M. dunklei sp. nov. and M. ecuatoriale sp. nov. from Ecuador (Odonata: Coenagrionidae)

In this paper we re-evaluate Cyanallagma Kennedy 1920, which currently includes 15 species, and we address another five species that share diagnostic characters with some of them but are currently placed within Leptagrion Selys 1876, Mesamphiagrion Kennedy 1920, and Telagrion Selys 1876. A new genus, Oreiallagma, is described to include five species originally placed in Acanthagrion Selys 1876, Cyanallagma, and Telagrion. These species are O. thelkterion (De Marmels 1997) (type species), O. acutum (Ris 1918), O. oreas (Ris 1918), O. prothoracicum (Kimmins 1945), and O. quadricolor (Ris 1918). The last stadium larva of O. quadricolor is described. The remaining species currently includedin Cyanallagma are allocated to two separate genera: Cyanallagma sensu stricto and Mesamphiagrion. Cyanallagma sensu stricto comprises southern South American species including the type species, Cyanallagma interruptum (Selys 1876). Mesamphiagrion Kennedy 1920 includes a cluster of species from northwestern South America that are considered congeneric with the type species Mesamphiagrion occultum (Ris 1918). Two new species from Ecuador, M. dunklei and M. ecuatoriale, are described and Argia hebdomatica Navás 1934 is found to be a junior synonym of M. ovigerum (Calvert 1909). Synonymic lists, diagnoses, illustrations, keys, and distribution maps for the three genera are provided.Fil: Von Ellenrieder, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; ArgentinaFil: Garrison, Rosser W.. California Department of Food and Agriculture; Estados Unido

Redefinition of Leptobasis Selys with the synonymy of Chrysobasis Rácenis and description of L. mauffrayi sp. nov. from Peru (Odonata: Coenagrionidae)

Chrysobasis is synonymized with Leptobasis. The latter is diagnosed by the combination of rounded frons, CuP reaching hind margin of wing, CuA relatively short, and supplementary pretarsal claw reduced to vestigial, and by the presence on the distal segment of the genital ligula of a pair of chitinized, flap-like, movable processes directed posteriorly. A new species from Peru, L. mauffrayi, is described, and illustrations, maps, and keys for all Leptobasis species are provided.Chrysobasis es sinonimizado con Leptobasis, el último es diagnosticado por la combinación de frente redondeada, CuP alcanzando el margen posterior del ala, CuA relativamente corta, y uña pretarsal suplementaria reducida a vestigial, y por la presencia de un par de procesos quitinizados, a modo de lengüetas, movibles, dirigidos posteriormente en el segmento distal de la ligula genital. Se describe una nueva especie de Perú, L. mauffrayi, y se proveen ilustraciones, mapas y claves para todas las especies de Leptobasis.Fil: Garrison, Rosser W.. California Department of Food and Agriculture; Estados UnidosFil: Von Ellenrieder, Natalia. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Argia nataliae n. sp. from Colombia (Odonata: Coenagrionidae)

Garrison, Rosser W. (2019): Argia nataliae n. sp. from Colombia (Odonata: Coenagrionidae). Zootaxa 4590 (4): 477-486, DOI: 10.11646/zootaxa.4590.4.

Review of Oxystigma Selys with the synonymy of Oxystigma williamsoni Geijskes (Odonata: Heteragrionidae)

Garrison, Rosser W. (2014): Review of Oxystigma Selys with the synonymy of Oxystigma williamsoni Geijskes (Odonata: Heteragrionidae). Zootaxa 3780 (2): 347-364, DOI: 10.11646/zootaxa.3780.2.

Preparation of preserved field collected dried damselfly specimens for character illustrations ; Imaging preserved damselflies for scientific publications

Inhalt: Preparation of preserved field collected dried damselfly specimens for character illustrations S. 1-7 Imaging preserved damselflies for scientific publications S. 9­-2