Peradon fenestratus (Hull)

Reemer, Menno, Skevington, Jeffrey H. & Kelso, Scott, 2019, Revision of the Neotropical hoverfly genus Peradon Reemer (Diptera, Syrphidae, Microdontinae), ZooKeys 896, pp. 1-93 : 1

Peradon fenestratus (Hull) Figs 16 , 99 , 194-198 , 256

Microdon fenestratus Hull, 1943: 712. Holotype ♂: Amazon (NHMUK) [examined]; Thompson et al. 1976.

Peradon fenestratus (Hull): Reemer and Ståhls 2013a: 146.

Studied type specimens.

Amazon Region • 1 ♂, holotype of Microdon fenestratus Hull; NHMUK.

Label 1 (small, round, red-bordered): "Holo- / type"; label 2: "Amazon / 66 53"; label 3 (red): "Holotype / Microdon / fenestratus / Hull".

Additional specimens.

Brazil • Amazonas: 3 ♀; Barcelos, Rio Demeni Pirico; 01°19'30"S, 62°47'21"W; Aug. 2008; A. Silva & R. Machado leg.; INPA • 1 ♀; Barcelos, Rio Demeni Alubiá; 00°16'07"S, 62°44'45"W; Aug. 2008; A. Silva & R. Machado leg.; INPA • 1 ♀; Barcelos, Serrinha; 00°25'05"N, 63°23'05"W; Jul. - Aug. 2007; A.S. Filho & T. Krolow leg.; INPA. French Guiana • 1 ♂; St-Laurent du Maroni; 1909; E. Le Moult leg.; MNHN.

Diagnosis.

Body length: male 17 mm, female 17-19 mm. The triangle of golden pile on the mesoscutum place this species in a group with P. aureoscutus , P. aureus , P. trilinea and P. trivittatus . Peradon fenestratus differs from all four of those by the erect (instead of appressed) pile on the scutellum ( Fig. 16 ).

Notes.

Label information of the studied Brazilian specimens in the INPA collection states that these were collected in "terra firme" (non-flooded) forest and at a small stream ( “igarapé”).

Distribution.

Known from the Brazilian Amazon region and from French Guiana.

Figures

Figures 13 - 18. 13 - 15 Mesoscutum: 13 Peradon aureoscutus male holotype 14 P. aureus male Ecuador CNC 15 P. trivittatus male French Guiana RMNH 16 Peradon fenestratus, scutellum lateral 17, 18 Tergites 2 and 3: 17 Peradon trilinea male holotype 18 P. aureus male holotype.

Figures 97 - 104. Dorsal habitus of Peradon species (trivittatus group) 97 P. trivittatus ♂ Suriname RMNH 98 P. trivittatus ♀ Suriname RMNH 99 P. fenestratus ♀ Brazil INPA 100 P. trilinea ♂ holotype 101 P. trilinea ♀ Peru NHMUK 102 P. aureus ♀ holotype 103 P. aureus ♂ Ecuador CNC 104 P. aureoscutus ♂ holotype. Scale bar: 10 mm.

Figures 194 - 198. Peradon fenestratus male, holotype 194 habitus dorsal 195 habitus lateral 196 head frontal 197 head lateral 198 wing.

Figures 256 - 261. Male genitalia of Peradon species 256 P. fenestratus French Guyana MNHN 257 P. aureoscutus holotype 258 P. aureus Ecuador CNC 259 P. trilinea holotype 260 P. trivittatus Suriname RMNH 261 P. hermetia holotype.