Micropotamia, gen.n. of neotropical muscidae (Diptera, Azeliinae), with comments on allied azeliini genera

Abstract

A new genus, Micropotamia, is erected for Phaonia minuscula Albuquerque, 1955 [type-species of the genus], Phaonia cilitibia Albuquerque, 1955 and Azelia amazonica Albuquerque & Lopes, 1982. A key to these three species is given. The female of Micropotamia amazonica is described for the first time, from Roraima. Some character-states of phylogenetic importance and affinities with world Azeliini genera are discussed. Megophyra Emden, 1965 and Potamia Robineau-Desvoidy, 1830 are considered to be most closely related to Micropotamia, gen.n

Revision and cladistics of the Neotropical genus Pseudoptilolepis Snyder (Diptera, Muscidae)

“…The family Muscidae is a large family with probably more than 4000 extant species of a world-wide distribution (MICHELSEN 1991) in about 173 genera (CARVALHO et al 1993) representing about 3% of the total diversity in Diptera. Phylogenetic works in its family are still scarce (CARVALHO 1989b).…”

“…Pseudoptilolepis is considered as genus of Cyrtoneurininae (SNYDER 1954, HENNIG 1965, PONT 1972, LOPES & CARVALHO 1985, LOPES & COURI 1989, CARVALHO et al 1993, COURI & CARVALHO 2002, recently recognised as a poliphyletic muscid subfamily (COURI & CARVALHO 1998). Several genera of this subfamily were transferred to other subfamilies (CARVALHO et al 1993).…”

“…Several genera of this subfamily were transferred to other subfamilies (CARVALHO et al 1993). No phylogenetic study to date resolves the position of the genus inside the family.…”

“…This relationship hypothesis is based on the upwardly curved setae on genae (CARVALHO 1993) and on the aedeagus with juxta spinulose (CARVALHO 1993, COURI & LAMAS 1993. CARVALHO (1993) presented this configuration of the distifallus (with juxta spinulose) as the most striking evidence of the Azeliini monophyly. …”

“…The upwardly curved setae on genae was presented by MICHELSEN (1978) and CARVALHO (1993) as a character present on most of the Azeliini genera. Both characters lead us to positioned Pseudoptilolepis and Chaetagenia in Azeliini.…”