Senaspis flaviceps Macquart, 1850

Meyer, Marc De, Goergen, Georg & Jordaens, Kurt, 2020, Taxonomic revision of the Afrotropical hover fly genus Senaspis Macquart (Diptera, Syrphidae), ZooKeys 1003, pp. 83-160 : 83

publication ID

https://dx.doi.org/10.3897/zookeys.1003.56557

publication LSID

lsid:zoobank.org:pub:5D883EC6-5306-4AC3-A0D7-8CA867324596

persistent identifier

https://treatment.plazi.org/id/B16BD780-3811-5BCF-880F-BF78A84F3A06

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scientific name

Senaspis flaviceps Macquart, 1850
status

 

Senaspis flaviceps Macquart, 1850 Figs 4 View Figures 3, 4 , 24-27 View Figures 24–27 , 56 View Figures 56–59 , 72 View Figures 68–73 , 83 View Figures 80–85 , 84 View Figures 80–85 , 94 View Figures 91–96 , 105 View Figures 102–113

Senaspis flaviceps Macquart, 1850: 438.

Protylocera apophysata Bezzi, 1915: 64. Syn. nov.

Differential diagnosis.

A large brown to reddish brown species (Fig. 4 View Figures 3, 4 ) differentiated from all other Senaspis species by conspicuous yellow face and frons (Fig. 24 View Figures 24–27 ) (dark in all other species), and a bare katepimeron (pilose in all other species). The male metafemur bears a prominent basoventral tubercle (Fig. 83 View Figures 80–85 ) (absent in all other species).

Examined material.

Senaspis flaviceps Macquart: Holotype, male, "MUSEUM PARIS // MADAGASCAR // GOUDOT 1839" "86 // 39" " Senaspis // Senaspis flaviceps . ♂. // Macq. n. g., n. sp." “TYPE” "TYPE // Vockeroth ‘69” “HOLOTYPE” "MNHN, Paris // ED6772" [MNHN].

Protylocera apophysata Bezzi: Holotype, male, " Protylocera // Type // Protylocera apophysata // Bezzi." "Holo- // type" "Betsileo, // Madagascar // Revd. D. Cowan. // 82.30." " Protylocera // Protylocera apophysata // n. sp." “NHMUK010369877” [NHMUK].

Other material.

Madagascar • 1♀; Ahitsitondrona; Dec. 1949; J. Vadon leg.; KMMA • 1♀; Ambatosoratra, Sambava; Nov. 1960 • 2♀♀; Ambodivoangy; Aug. 1961; J. Vadon leg.; KMMA • 1♀; Atsimo, Atsinanana, 50 km S Farafangana; 24 Feb.-3 Mar. 2007; M.E. Irwin and R. Harin’hala leg.; CDFA • 1♀; Fampanambo; Jun. 1960; J. Vadon leg.; KMMA • 1♀; same collection data as for preceding; Jan. 1961 • 1♀; same collection data as for preceding; Mar. 1961 • 2♂♂ 1♀; same collection data as for preceding; 1962 • 1♂ 1♀; Fort Dauphin [= Taolagnara], Mandena; 14-18 Apr. 1968; K.M.G. and P.D. leg.; NHMUK • 1♀; Foulpointe [= Mahavelona]; Jan. 1995; A. Pauly leg.; KMMA • 1♂; same collection data as for preceding; May 1995 • 1♀; same collection data as for preceding; 25 Oct. 1995 • 1♂; Horombe, Vohibasia National Park, Adrefana; Atsimo; 9-15 Feb. 2013; M. Irwin and Rin’ha leg.; CDFA • 1♀; Ivolaina; Feb. 1960; Sigwalt leg.; MNHN • 1♀; same collection data as for preceding; Oct. 1961 • 1♂; Ivondro; Dec. 1938; A. Seyrig leg.; MNHN • 3♂♂; Mananara; Oct. 1963; J. Vadon leg.; KMMA • 1♀; Maroantsetra; J. Vadon leg.; MNHN • 1♀; Miarinarivo; 1919; E. Séguy leg.; MNHN • 1♂; Mus Pragense; CNC • 1♀; Oriental Forest, Moramanga; Jan.-May 1937; C. Lamberton leg.; CNC • 1♂ 1♀; same collection data as for preceding; May-Sep. 1938 • 1♀; Oubanghi-Chari, Fort Sibut; 1968; Breuning leg.; KMMA • 1♀; Ranomafana National Park; 1-10 Dec. 2009; M.E. Irwin and R. Harin’hala leg.; CDFA • 1♀; Ranomafana National Park; 13 Jan. 2014; M. Hauser leg.; CDFA • 1♀; Ranomafana National Park; Rogez leg.; CNC • 2♂♂; Ranomafana National Park; 21 Dec. 2017; Schmid-Egger leg.; CDFA • 1♀; Sorulirano; A. Seyrig leg.; MNHN • 1♂; Tsivory; 1906; Fauchère leg.; MNHN • 1♂ 1♀; no locality; 1937; A. Seyrig leg.; MNHN.

Description.

Body length: 17.5-23.8 mm. Wing length: 12.7-17.5 mm.

Male (Fig. 4 View Figures 3, 4 ). Head (Figs 24 View Figures 24–27 , 25 View Figures 24–27 ). Eye bare; holoptic, eye contiguity for distance equal to length of ocellar triangle, facets dorsally only slightly larger, at most twice as large in diameter as ventral facets. Frons yellow; weakly subshiny, largely with yellow pollinosity; dispersed yellow pile, dorsally somewhat longer. Face yellow; subshiny with yellow pollinosity, ventral part mainly yellow-orange subshiny; in parts with dispersed long pale pile; facial tubercle moderately pronounced. Gena colour and pollinosity as ventral lateral margins of face; with short to long pale pile. Occiput orange-brown, covered with orange-brown pollinosity; with dispersed pale pile except dorsally where sometimes more rufous. Antennal segments yellow; arista yellow at base, brown apically.

Thorax (Fig. 56 View Figures 56–59 ). Scutum subshiny black-brown, postpronotum and lateral margin broadly rufous, narrowly along transverse suture and anterior of scutellum also rufous; with weak grey pollinosity and short rufous pile. Scutellum near to three times as wide as long, apical margin straight, not rounded; rufous; with short rufous pile. Pleura ground colour black-brown, with grey pollinosity, covered with dispersed long dark (more rufous at dorsal margin of posterior anepisternum and anterior anepimeron) pile except katepimeron, meron, dorsomedial and posterior anepimeron, anterior part of katepisternum and anterior anepisternum.

Legs. Brown to black-brown, femora partly more reddish brown ventrally; with short black pile, along posterior margin of pro- and mesofemora with longer pile. Metaleg (Fig. 83 View Figures 80–85 ), femur distinctly thickened, with one distinct ventral tubercle in basal fourth to fifth, tubercle with distinct short dark pile; tibia thickened, distinctly bent at base, and only slightly curved, no longer pile along ventral margin.

Wing (Fig. 72 View Figures 68–73 ). Yellowish brown tinge especially in anterior half, in parts more black-brown; towards posterior margin and apex more hyaline. Calypters black with fringe of silvery white pile. Cell r1 closed, petiole at least as long as height of base of stigma. Vein R4+5 sinuate but not appendiculate.

Abdomen (Fig. 94 View Figures 91–96 ). Uniformly subshiny brown to reddish brown, terga IV and V and postabdomen often more rufous; with short dark pile, except tergum I where grey, and postabdomen where more rufous. Sterna dark; with long pale pile. Male genitalia as in Fig. 105 View Figures 102–113 .

Female. As male except for the following character states: Eye dichoptic (Figs 26 View Figures 24–27 , 27 View Figures 24–27 ), facets of equal size. Thorax pilosity darker medially. Metafemur (Fig. 84 View Figures 80–85 ) more slender, without ventral tubercle. Abdominal sterna IV-V with shorter dark pile.

Distribution.

Species described from Madagascar. Keiser (1971) also reported the species from the Comoros (Grande Comore).

Comments.

The type material of S. flaviceps and S. apophysata was compared and considered to be conspecific. Senaspis apophysata is thus considered as a junior synonym of S. flaviceps . This synonymy was already suggested ( Ssymank et al. in press, F.C. Thompson pers. comm.) but not formally published. The original description of S. flaviceps mentions the type locality as "De l’Afrique. Cap?" but the type specimen bears a label indicating “Madagascar” // "Goudot 1839". All studied material originates from Madagascar and no specimens collected on the African mainland were found. We, therefore, consider the current distribution of this species to be limited to Madagascar (and possibly Comoros; see Keiser 1971). Senaspis flaviceps differs from all other species within the genus in some aspects, such as the bare katepimeron (pilose in the rest, albeit weakly so), the presence of a basal tubercle in the male metafemur (absent in all others), the relatively longer petiole (at least as long as height of base of stigma, shorter in all others), and the larger body size (larger than 17 mm and up to 23 mm).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Senaspis

Loc

Senaspis flaviceps Macquart, 1850

Meyer, Marc De, Goergen, Georg & Jordaens, Kurt 2020
2020
Loc

Senaspis flaviceps

Macquart 1850
1850