Stypommisa aripuana Fairchild & Wilkerson, 1986

Oliveira, Lia Pereira, Henriques, Augusto Loureiro & Krolow, Tiago Kütter, 2023, New records, descriptions, and redescriptions of male horse flies (Diptera: Tabanidae) in Brazil, EntomoBrasilis (e 1033) 16, pp. 1-7 : 3

Stypommisa aripuana Fairchild & Wilkerson, 1986

( Figure 4 )

Description (♂)

Head ( Figures 4 A-C): Eyes contiguous, glabrous, ommatidia of the same size. Ocellar triangle dark brown, not prominent. Subcallus covered by yellowish pruinosity and yellowish setulae. Gena and parafacial with gray pruinosity and black setulae. Clypeus orange, with gray pruinosity and some yellow setulae. Palpus porrect, yellow, with pale setulae and some sparse black setulae. Antenna orange, with black style. Scape and pedicel with black setulae. Proboscis orange-brown with short black setulae on the prementum and slightly longer on the labellum.

Thorax ( Figures 4 A-B): Dark brown with black and yellow setulae, notopleuron lighter than scutum and densely setulose. Two inconspicuous longitudinal bands of yellowish pruinosity on scutum. Scutellum concolor to the thorax with yellow setulae. Legs yellowish orange, femora with yellowish setulae, tibiae and tarsi with black setulae, hind tibiae more setulose than the remainder. Wing hyaline with yellowish pterostigma.

Abdomen ( Figures 4 A-B): Abdomen yellowish with numerous black setulae. Tergite 1 slightly darker. Tergites 2 to 5 with a dark brown median integumentary band. Tergites 6 and 7 brown.

Terminalia ( Figures 4 D-G): Epandrium with anterior region glabrous, posterior region with sparse black setulae. Cercus almost as wide as the epandrium, with quite long black setulae on the dorsal face and shorter black setulae on the ventral face. Hypoproct covered by cerci. Hypandrium + gonocoxite robust, longer than wide. Gonocoxite with a small projection at the apex. Gonocoxal apodemes slightly longer than the aedeagus.

Material examined: BRAZIL • 2 males; Tocantins, Palmas, TaquaruÇu, Faz.[enda] Encantada , Cach [oeira] Raizama ; 10°14′45.21′′S, 48°7′24.07′′W; 26-31.viii.2017 ; Malaise G &G; Krolow, T.K. & equipe leg . / BRAZIL • 1 male; Tocantins, SÃo Valério da Natividade , BR 242 ; 08-17.vii.2010; BraganÇa, M.A. leg.

Distribution: Brazil (Maranhão, Mato Grosso, Pará, Rondônia, Tocantins) ( HENRIQUES & GORAYEB 1993; COSCARÓN & PAPAVERO 2009; LIMA et al. 2015).

Comments: FAIRCHILD & WILKERSON (1986) reviewed the genus Stypommisa and the males of 11 of the 28 known species are still unknown. Tergite 2 in one of the specimens presents a very evident dark brown median triangle and tergites 3 and 4 are completely yellowish. These variations in the coloration of the abdomen are also observed in females. One of the gonocoxal apodemes was broken during the dissection.

Figures

Figure 4. Male of Stypommisa aripuana Fairchild & Wilkerson, 1986.A. Habitus, dorsal view;B. Habitus, lateral view;C. Head, anterior view;D-E. Epandrium, cercus and hypoproct (dorsal and ventral views, respectively); F-G. Hypandrium, gonocoxite, gonostylus and aedeagus (dorsal and ventral views respectively). Source: authors.