Falbouria Dyte

Capellari, Renato Soares & Amorim, Dalton De Souza, 2012, Systematic position of the monotypic Azorean genus Falbouria Dyte with notes on the definition of Chrysotus Meigen (Diptera: Dolichopodidae), Zootaxa 3489, pp. 81-88 : 82

Genus Falbouria Dyte

Balfouria Parent, 1933: 74 . Type-species: Balfouria acorensis Parent, 1933: 75 (by monotypy). Preoccupied by Balfouria Crosse, 1884 [Mollusca].

Falbouria Dyte, 1980: 223 . Type-species: Balfouria acorensis Parent (automatic). Replacement name for Balfouria Parent, 1933 .

Diagnosis (Male). Face obliterated by contiguous eyes (MSSC); scape of antenna bare, postpedicel subtriangular, apical stylus bi-articulate near base. Acrostichals biseriate, 6 pairs of dorsocentrals. Upper part of proepisternum, in front of anterior spiracle, bare. FII and FIII with row of anterior setae near apex; claws present in all legs, pulvilli of usual normal size (not developed as MSSC). Tg6 pilose, hind margin with strong setae, longer than those on St8; Tg7 and St7 strongly reduced. Hypopygium encapsulated; surstylus as a single lobe; lateral epandrial lobe reduced; cercus short.

Comments. In spite of the rows of anterior setae at the apex of FII and III, these are not true pre-apical setae, as those seen in Sympycninae and other subfamilies of Dolichopodidae . Indeed, Falbouria shows a typical Chrysotus -like habitus and, in most respects, F. a c o re n s i s could be regarded as a Chrysotus with stronger chaetotaxy. Parent’s (1933) claim that two postverticals—“postverticaux” in Parent (1938) are paravertical setae in Cumming and Wood (2009) —were of generic value to separate his genus proved to be misleading, as also displayed by other diaphorines. Strong setae on femora and tibiae seem more useful to recognize the genus while comparing it with species of Chrysotus (but see discussion below).