Results 101 to 110 of about 7,934 (242)

Commentary on \u3ci\u3eAmetropus\u3c/i\u3e Species (Ephemeroptera: Ametropodidae) in North America [PDF]

open access: yes, 2018
Ametropus albrighti is shown to be a junior subjective synonym of A. neavei, n. syn. Ametropus neavei sensu lato demonstrates stable structural characteristics with respect to male genitalia and larval morphology, whereas degree of maculation and ...
McCafferty, W. P
core   +2 more sources

Sobre el hallazgo de una Ginandromorfo del género Dactylobaetis (Ephemeroptera, Baetidae) en Uruguay

open access: yesActa Zoológica Lilloana, 1984
Revisando la colección de Ephemeroptera de la Facultad de Humanidades y Ciencias de la Universidad de la República de Uruguay, se halló un ejemplar del género Dactylobaetis que presentaba tanto caracteres masculinos como femeninos.
Eduardo Domínguez
doaj  

Redescription of Papuanatula Lugo-Ortiz & McCafferty (Ephemeroptera, Baetidae), with description of a new subgenus and 20 new species [PDF]

open access: yesZooKeys
Material from the type localities of most described species of Papuanatula and rich material newly collected across New Guinea and on the island Sulawesi form the bases for this comprehensive study of the genus, including the description of a new ...
Thomas Kaltenbach   +2 more
doaj   +3 more sources

Ephemeroptera from West Africa : the genus Pseudopannota (Baetidae) [PDF]

open access: yes, 1990
Les auteurs décrivent les adultes du genre #Pseudopannota$ dont seules les formes larvaires étaient connues jusqu'alors. Une nouvelle espèce, #Pseudopannota (Pseudopannota) muganinami$, est décrite des rivières d'Afrique de l'Ouest. Un nouveau sous-genre,
Elouard, Jean-Marc   +2 more
core  

The development of a toxicity database using freshwater macroinvertebrates, and its application to the protection of South African water resources [PDF]

open access: yes, 2004
There is a growing international trend towards the protection of freshwater resources from pollution by imposing instream guidelines and specified waste-discharge conditions. Current methods for devising freshwater quality guidelines are based on species
Davies-Coleman, H D   +6 more
core   +1 more source

Global diversity of mayflies (Ephemeroptera, Insecta) in freshwater [PDF]

open access: yes, 2007
The extant global Ephemeroptera fauna is represented by over 3,000 described species in 42 families and more than 400 genera. The highest generic diversity occurs in the Neotropics, with a correspondingly high species diversity, while the Palaearctic has
Barber-James, Helen Margaret   +3 more
core   +2 more sources

The nymph ofCallibaetis domingueziGillies (Ephemeroptera: Baetidae)

open access: yesStudies on Neotropical Fauna and Environment, 2013
Callibaetis dominguezi Gillies was described based on male and female imagines from the northwest of Argentina. Herein the nymph of this species is described for the first time. It can be distinguished from other species in the genus mainly by (1) distal margin of labrum with deep median emargination; (2) maxillary palp almost two times the length of ...
Nieto, Carolina, Cruz, Paulo Vilela
openaire   +3 more sources

Occurrence of Rhithrocloeon (Baetidae : Ephemeroptera) in west Africa [PDF]

open access: yes, 1989
#Rhithrocloeon$ n'était connu auparavant que des torrents de l'Afrique de l'Est. L'imago male d'une nouvelle espèce, #Rhithrocloeon elouardi$, est décrite de Côte d'Ivoire.
Gillies, M.T.
core  

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