On the identities of Rhinoleucophenga pallida Hendel and Rhinoleucophenga obesa (Loew) (Diptera, Drosophilidae), with description of a new sibling species from Brazil

On the identities of Neotropical Stegana species (Diptera, Drosophilidae). I. Redescription of Stegana magnifica Hendel, 1913 and Stegana fumipennis (Enderlein, 1922)

“…The habitus of the two holotypes was photomicrographed with the rear camera of a Samsung Galaxy S8 smartphone, which was attached to the right eyepiece of a Wild M3 stereomicroscope through a magnetic plate of a clothespin-shaped plastic adapter as shown in Figs. 1a-h and as described previously (Vilela and Prieto, 2018;Vilela and Bächli, 2019;Bächli and Vilela, 2020a). Objective lenses of 1.6×, and 4× were used, and the camera was set to default or optically zoomed to Figure 1 Plastic clothespin-shaped adapter used for connecting the smartphone to the stereomicroscope eyepiece, several views: a) swivel magnetic plate seen from below (blue rectangle), b) a movable metal plate placed over the magnetic plate seen from above, c) swivel magnetic plate (metal plate removed) with four circles in the center of velvet cover, oblique view, d) adapter attached to the stereomicroscope with the magnetic rectangle plate partially placed over the right eyepiece but not touching the left eyepiece, posterior view, e) idem, oblique view, f) idem, anterior view of the uncovered right eyepiece lens to where the rear camera should be positioned, g) a movable metal plate placed inside the smartphone case, h) smartphone obliquely positioned over the right eyepiece as seen by the observer.…”

On the identities of Neotropical Stegana species (Diptera, Drosophilidae). II. Stegana acutangula (Hendel) and Stegana triseta (Duda), with descriptions of three new closely related species

“…A series of pictures were taken at consecutively increasing depths of focus for each selected view. The image series were mostly stacked using the "All Methods" algorithm of the open-source software CombineZP (Hadley, 2010), yielding an in focus (Vilela and Prieto, 2018, Vilela and Bächli, 2019, 2020.…”

Checklist of the dipterofauna (Insecta) from Roraima, Brazil, with special reference to the Brazilian Ecological Station of Maracá

“…Revision of the biology and distribution of the Neotropical species has been done by Val et al (1981) and more recently by Brake & Bächli (2008), who listed 910 species in 32 genera in the region. These numbers are certainly outdated since several new species were described in the last decade (e.g., Pirani & Amorim, 2016;Carvalho-Filho et al, 2018;Poppe, et al, 2019;Vilela & Bächli, 2019). According to Tidon et al (2021), there are 305 drosophilid species in Brazil.…”