Revision of the Afrotropical genus Fainia Zumpt, 1958, with notes on the morphology of Rhiniidae subfamilies (Diptera, Oestroidea) Author Thomas-Cabianca, Arianna https://orcid.org/0000-0003-2126-6222 Departamento de Ciencias Ambientales y Recursos Naturales, Universidad de Alicante, Carretera San Vicente del Raspeig s / n, Aptdo 99 E- 03080, San Vicente del Raspeig, Alicante, Spain athomasbio@gmail.com Author Martinez-Sanchez, Anabel Departamento de Ciencias Ambientales y Recursos Naturales, Universidad de Alicante, Carretera San Vicente del Raspeig s / n, Aptdo 99 E- 03080, San Vicente del Raspeig, Alicante, Spain Author Villet, Martin H. https://orcid.org/0000-0002-4335-5667 Department of Zoology & Entomology, Rhodes University, PO Box 94, Makhanda 6140, South Africa Author Rojo, Santos https://orcid.org/0000-0003-2160-9643 Departamento de Ciencias Ambientales y Recursos Naturales, Universidad de Alicante, Carretera San Vicente del Raspeig s / n, Aptdo 99 E- 03080, San Vicente del Raspeig, Alicante, Spain text ZooKeys 2021 2021-04-22 1033 127 157 http://dx.doi.org/10.3897/zookeys.1033.58539 journal article http://dx.doi.org/10.3897/zookeys.1033.58539 1313-2970-1033-127 303A0FAE2497448297AE9442BDDF71E8 2C114AF862225B9C94B030DDFCC19461 Fainia Zumpt, 1958 Figs 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 Type species. Idia albitarsis Macquart, 1846, by original designation. Diagnosis. Head . Arista dorsally pectinate, male eyes separated at narrowest point by less than width of ocellar triangle. Thorax . Anepisternum with two upper posterior setae and dense yellow microtomentum; katepisternum with or without yellow microtomentum; thoracic chaetotaxy reduced (presutural acrostichal, dorsocentral and intra-alar absent and postsutural acrostichal and dorsocentral setae restricted to prescutellars). Legs . First tarsomeres always light cream-coloured; fore tibia without submedial posteroventral setae; hind tibia with 2-3 anterodorsal setae as long as tibial diameter, but not forming a distinct row (Fig. 10I ). Male mid femur with a distal posteroventral row (ctenidium) of closely spaced spine-like setae (Fig. 5J ; this character is also found in some Stomorhina species, such as S. apta Curran, 1931 and S. malobana (Lehrer, 2007c)). Wing . Cell r4+5 always open. Male terminalia . Tergites 5 and 7+8 connected by a long retractile membrane (Fig. 5I ), tergite 6 not sclerotised, spiracle 6 present, cerci fused (Figs 2B , 6A , 7A, F , 9A , 11A , 12A ) and sternite 5 divided into three posterior lobes (Figs 3 , 6F , 7C, I , 9F , 11F , 12F ). Figure 5. Fainia albitarsis (Macquart, 1846), general body views of male (SAM DIP A015190) and female (BMSA (D) 15187) A, C, E, G, I-K male A head in frontal view C head in lateral view E abdomen in dorsal view G thorax in dorsal view I retractile membrane connecting T5 and T7+8 J mid-femur, showing posteroventral row of closely spaced spine-like setae distally K lateral habitus and labels B, D, F, H, L female B head in frontal view D head in lateral view F abdomen in dorsal view H thorax in dorsal view L lateral habitus and labels. Abbreviations: cm T5-T7+8 - connective membrane between tergite 5 and 7+8, T5 - tergite 5, T7+8 - tergite 7+8. Scale bars: 2 mm. Redescription. ♀♂ Head (Figs 5A-D , 8A-D , 10A-D , 13D-I ). Fronto-orbital plate and parafacial ground colour black, covered with silvery microtomentum; parafacial with a glossy black spot; face ground colour black-brown, covered with silvery microtomentum, facial carina protruding (narrow or broad); lower face margin visible in profile, non-rounded, strongly protruding beyond antennal insertion; pedicel and postpedicel ground colour black-brown; arista pectinate, basally yellow and distally dark brown; vibrissa short and thick, 2-4 supravibrissal setulae adjacent to vibrissa; genal dilation anteriorly glossy black and bare, posteriorly covered with dense yellow microtomentum with hairs, generally with tiny piliferous dots around insertion of each hair; occipital area behind postocular setae with a bare and shiny broad black margin. Thorax (Figs 5G, H, K, L , 8G, K, J, K , 10G, H, J, K , 13A-F ). General colouration dark olive green with 3 longitudinal dorsal dark vittae, hair insertions with small piliferous dots; pleura covered by dense yellow microtomentum (in different extension degrees); dorsal chaetotaxy reduced, presutural acrostichal, dorsocentral and intra-alar setae absent and postsutural setae reduced to prescutellars and supra-alar; 2 (outer and anterior) post-postpronotal setae present, postalar wall and suprasquamal ridge bare. Wing (Fig. 4E ). Cell r4+5 always open. Legs (Figs 5J-L , 8J, K , 10I-K ). Femora reddish-yellow; male mid-femur bearing a distal posteroventral row (ctenidium) of closely spaced setae (Fig. 5J ) that are spine-like in male but not in female; tibiae yellow to brown; first tarsomeres creamy white; first and second hind tarsomeres creamy, almost white. Abdomen (Figs 5E, F, K, L , 8E, F, J, K , 10E, F, J, K ). Longer than broad, extending to wing tip or even further; colour generally yellow-orange and sometimes partly brown. Male terminalia (Figs 1 - 3 , 6 , 7 , 9 , 11 , 12 ). Sternite 5 divided into three posterior lobes, 2 outer and 1 median. Outer lobes elongated and posteriorly slender or broad, tending to an inward curve (Figs 3 , 6F , 7C, I , 9F , 11F , 12F ), with or without abundant setae of different lengths and thickness; medial lobe forming a broad protuberance of varied shape (Figs 3 , 6F , 7C, I , 9F , 11F , 12H ). Phallus with basi- and distiphallus not fused and connected through a membrane (connection membrane) (Fig. 1A-C ); epiphallus absent; basiphallus with two anterolateral processes; ventral plate articulate; paraphallus distally globular. Figure 6. Fainia albitarsis (Macquart, 1846), male terminalia (BMSA (D) 30066) A, B epandrial complex and tergite 7+8 in dorsal ( A ) and lateral ( B ) view C-E phallus in dorsal ( C ), lateral ( D ) and ventral ( E ) view F sternite 5 in ventral view and G, H postgonite (upper) and pregonite (lower) in lateral-external ( G ) and lateral-internal view ( H ). Scale bars: 0.2 mm. Figure 7. Fainia kagerana Lehrer, 2007a nom. nud. (SMNHTAU (TAUI) 318988) and Fainia sambura Lehrer, 2008 holotype (SMNHTAU (TAUI) 318990), male terminalia A-E F. kagerana A, B epandrial complex in dorsal ( A ) and lateral ( B ) view C sternite 5 in ventral view and D, E phallus in lateral ( D ) and ventral ( E ) view F-J F. sambura F-H epandrial complex in dorsal view ( F ), details of surstylus, showing serrations along distal margin ( G ) and lateral view ( H ) and details in I sternite 5 in ventral view J phallus view. Scale bars: 0.2 mm.