New species and records for the mayfly families Caenidae, Leptohyphidae and Coryphoridae (Ephemeroptera, Pannota) from Venezuelan Guayana’s Uplands

Abstract

We give new geographical and morphological data for the Pannota mayflies of Venezuelan Guayanan uplands. Coryphorus aquilus (Coryphoridae), Amanahyphes saguassu and Tricorythopsis yucupe (Leptohyphidae) are newly recorded for Venezuela, the adults of the last species are described for the first time. Macunahyphes pemonensis sp. nov. and Macunahyphes incognitus sp. nov. (Leptohyphidae) are described from adults from Venezuela and Brazil, respectively. Both new species of Macunahyphes are very nearly related, and are characterized among other features, by the absence of forceps, and the great development of large paired projections on the styliger plate. Caenis teipunensis sp. nov. (Caenidae) is also described from adults, its diagnostic characters include: forceps apically sharp and sclerotized, and very large apophyses of the styliger sclerite. We give new locality records for Tricorythopsis volsellus, previously known from other localities in Venezuela.

Direct analysis of vicariance in Neotropical mayflies (Ephemeroptera)

“…1a-c). SVe1 is supported by three TVes: Fittkauneuria Pescador and edmunds (1994) vs Oligoneuria, Caenis tepuiensis Molineri et al (2011) vs C. cuniana Froehlich (1969 and Spiritiops tepuiensis Nieto and Derka (2012) SVe4 (Fig. 4a-b) separates southern Mexico from Central America + northern South America in the gulf of Honduras, and is supported by two TVes: Farrodes tulija Domínguez et al (1996) vs F. flavipennis Domínguez et al (1996), and F. maya Domínguez (1999) vs F. caribbianus (Traver 1943).…”

First records of the genera Macunahyphes and Microphlebia (insect: ephemeroptera) from Colombia.

“…zagaia. Ma. australis has the widest distribution recorded for Argentina, Brazil and Guyana (BANKS, 1913;DIAS et al, 2005;MOLINERI, 2002;MOLINERI et al, 2011;SOUTO & SALLES, 2016).…”

Ephemeroptera from the Venezuelan Guayanas´s Uplands: Families Leptophlebiidae, Euthyplociidae and Oligoneuriidae

“…Recently, an important collecting effort in the Guyana´s Uplands (Gran Sabana region, Bolívar state) was carried out. As a result, new taxa and records of the families Baetidae , Caenidae, Leptohyphidae and Coryphoridae (Molineri et al, 2011) have been published, improving greatly the knowledge of the group in this interesting region, describing three new species, and recording for the first time one family, seven genera and 13 species. Previous to these two publications, only eight species, 9 genera and six families were recorded for the region (Chacón et al, 2009).…”