Macunahyphes Dias, Salles & Molineri, 2005,

Paula Malaquias Souto & Frederico Falcão Salles, 2016, New species of Macunahyphes Dias, Salles & Molineri (Ephemeroptera: Leptohyphidae), with taxonomic notes, European Journal of Taxonomy 254, pp. 1-15: 2-3

publication ID

http://doi.org/ 10.5852/ejt.2016.254

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:F5CFCCC2-A1EC-4C9E-89B0-85D228F50F1C

persistent identifier

http://treatment.plazi.org/id/03C3CA39-FFD4-FFF5-FDFE-FBF64F93FC87

treatment provided by

Plazi

scientific name

Macunahyphes Dias, Salles & Molineri, 2005
status

 

Macunahyphes Dias, Salles & Molineri, 2005 

Macunahyphes Dias, Salles & Molineri, 2005: 196  (type species: Tricorythus australis ( Banks, 1913)  , by monotypy).

Diagnosis

Genus characterisation: 1) eyes undivided in both sexes; 2) fore wings with well-developed Cu-A lobe, especially in males; 3) longitudinal vein CuP poorly developed in both sexes or absent; 4) hind wings absent in both sexes; 5) membranous filaments of mesoscutellum present or absent; 6) styliger plate very slightly projected posteriorly as a columnar base for each pair of forceps (see figs 7–9 in Molineri et al. 2011); 7) basal swelling on forceps segment II present or absent. In the nymph: 1) maxillary palp reduced in size, one-segmented, with apical seta; 2) glossa and paraglossa almost completely fused, with a circular outline; 3) femora with numerous robust serrate setae; 4) tarsal claws long and slender, with 7–10 marginal denticles and a double row of 2–4 submarginal denticles; 5) gills present on abdominal segments II –VI, gill formula 3/3/3/3/2; 6) operculate gills subtriangular; 7) posterior margin of terga II –V smooth, other segments with denticles.

Comments

Due to the presence of membranous filaments on the mesoscutellum in females and males in one species, and to the presence of a basal swelling on forceps segment II in four species, we propose an expansion to the diagnosis of the genus provided by Dias et al. (2005) to include characters 5 and 7 above. As M. australis  is the only species in which nymphs have been described, the generic diagnostic features of the nymphal stage are maintained.

Distribution ( Fig. 1View Fig. 1)

Argentina, Brazil, Guyana and Venezuela.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Leptohyphidae

Loc

Macunahyphes Dias, Salles & Molineri, 2005

Paula Malaquias Souto & Frederico Falcão Salles 2016
2016
Loc

Macunahyphes

Dias, Salles & Molineri 2005: 196
2005
Loc

Tricorythus australis (

Banks 1913
1913