Ormiophasia inflata ( Séguy, 1927b )

Gudin, Filipe M. & Nihei, Silvio S., 2019, Taxonomic revision of the Neotropical genus Ormiophasia Townsend, 1919 (Diptera: Tachinidae), with the description of eight new species, Zootaxa 4643 (1), pp. 1-74 : 36-40

Ormiophasia inflata ( Séguy, 1927b)

( Figs 3B , 5E , 7E , 9E , 11E , 13E , 23–25 , 39B )

Pseudormia inflata, Séguy 1926a: 5 ; comparison to Ormia , nomen nudum.

Pseudormia inflata, Séguy 1927a: 424 ; catalog, nomen nudum.

Pseudormia inflata Séguy, 1927b: 262 (description of female). Holotype female (MNHN), examined. Type locality: French Guiana, Kourou River .

Ormiophasia busckii: Townsend (1931: 82 ; synonymy of P. inflata with O. busckii ); Townsend (1938: 236; catalog); Sabrosky (1953:182; catalog); Tavares (1964: 38; comments on synonymy).

Ormiophasia inflata: Guimarães (1971: 22 ; catalog).

Ormiophasia travassosi Tavares, 1964: 49 (description of male). Holotype male (CEIOC), examined. Type locality: Brazil, Pará , Serra do Cachimbo. Syn. nov.

Ormiophasia travassosi: Tavares (1964: 39 ; key to species, 50; illustrations of head, abdomen, wing and terminalia, 52; comparison to O. costalimai ); Guimarães (1971: 22; catalog).

Type material examined. HOLOTYPE ♀ of P. inflata ( Fig. 24 ): “Museum Paris/ Guyane Française/ Riv. de Kourou [handwriting]”/ “Type” [red label]/ “ Ormia [sic] inflata Seguy , Type/ E. Séguy det. 1925”/ “ P. inflata , 111” ( MNHN).

HOLOTYPE ♂ of O. travassosi ( Fig. 25 ): “ Pará [PA, state of Brazil]/ Cachimbo [ridge located South the state of Pará, comprising some municipalities of Pará]/ “ abril 1955 [1955.04]/ Medeiros [leg.]”/ “ Ormiophasia travassosi / O. Tavares det.”/ “ Holotipo ” [red label]/ “N. 13.192/ DIPTERA / Inst. Oswaldo Cruz” ( CEIOC).

PARATYPES of O. travassosi : Brazil: 1 ♂: “ Ormiophasia travassosi / O. Tavares det.”/ “ Cachimbo [ridge located South the state of Pará , comprising some municipalities of Pará ], Estado do Pará [PA, state of Brazil]/ Alt 400m, 14/21–IX–955 [1955.09.14 –21]/ L. Travassos & S. Oliveira col.”/ “ Paratypus [pink label]”/ “N. 13.193/ DIPTERA / Inst. Oswaldo Cruz” ( CEIOC); 1 ♂: “Cachimbo [ridge located South the state of Pará, comprising some municipalities of Pará], Estado do Pará [PA, state of Brazil]/ Alt 400m, 12/18–I–956 [1956.01.12 –18]/ L. Travassos & S. Oliveira col.”/ “ Paratypus [pink label]”/ “ Ormiophasia travassosi / O. Tavares det.” ( CEIOC) .

Additional material examined. Brazil: 1 ♀, Amazon River , [no date], H.W. Bates leg. ( NHMUK) ; 1 ♂ [dis- sected], Amazonas, Itapiranga, AM 363 [highway] Km 111, 2º42’57”S 58º00’46”W, 7.x.2010, A. Agudelo et al. leg. ( INPA) ; 2 ♀♀, Amazonas, Manaus, Km 14, 40 m, 2º35’21”S 60º06’55”W, 18–21.ii.2004, J.A. Rafael et al. leg. ( INPA) ; 1 ♂, Amazonas, Novo Airão , 2º38’39”S 60º56’07”W, 28.viii.2011, J.A. Rafael et al. leg. ( INPA) ; 1 ♀, Amazonas , Urubu River, BR 174 [highway], 22.v.1982, I.S. Gorayeb leg. ( MPEG) ; 1 ♂, Maranhão, Caxias, Inhamum [Ecological Station], 535 m, 4º54’39”S 43º25’16”W, 17.v.2007, J.A. Rafael et al. leg. ( INPA) ; 1 ♀, Pará, Belém Instituto Agronômico do Norte , xi.1959, L. Trav. et al. leg. ( CEIOC) ; 1 ♀, Pará, São Félix do Xingu , 29–30.ix.1975, M. Boulard et al. leg. ( MNHN) ; 1 ♂ [dissected], 2 ♀♀ [one dissected, one photographed] ( Figs 7E , 13E , 23B, D, F ), Pará, Serra Norte , 22.x.1984 [no collector], MPEG DIP 12183742 ( MPEG) . French Guiana: 1 ♀, Saint-Laurent-du-Maroni, Sain-Jean du Maroni , 12.i.1980, J. Boudinot leg. ( MNHN) . Trinidad and Tobago: 1 ♀, Port of Spain, 26.ii.1960, T.H.G. Hitken leg. ( USNM) . Venezuela: 1 ♂ [photographed] ( Figs 5E , 9E , 11E , 23A, C, E, G ), Amazonas, Puerto Ayacucho , 22–23.vi.1984, L.J. Joly & T.J. Demarmels leg. ( MIZA) ; 1 ♀, Carabobo, San Esteban , 1–6.i.1940, P. Anduze leg. ( USNM) ; 1 ♂ [dissected], 1 ♀, Monagas, Jusepin , 4.x.1965, F. Fernandez et al. leg. ( MIZA) ; 1 ♂ [dissected], 1 ♀, Monagas, Jusepin , 18.x.1965, F. Fernandez et al. leg. ( MIZA) .

Distribution. Brazil (states of Amazonas, Maranhão and Pará), French Guiana (commune of Saint-Laurent-du- Maroni), Trinidad and Tobago (region of Port of Spain) and Venezuela (states of Amazonas, Carabobo, Monagas and San Esteban).

Diagnosis. Ormiophasia inflata can be distinguished from other species of Ormiophasia by head with yellow pruinosity ( Figs 5E , 7E ); body brownish-yellow ( Figs 9E , 11E , 13E ); wing hyaline ( Fig. 23G ); and apex of male cerci about 2/5 length of cerci ( Fig. 39B ), rounded in posterior view and 3/5 width of cerci, gradually constricted. Ormiophasia inflata is externally very similar to O. costalimai , but male cerci and surstylus are very different. Usually, O. inflata is stouter than O. costalimai ( Figs 9C , 11C , 13C ). Additionally, the female head of O. inflata is usually subtrapezoidal ( Fig. 7E ) rather than elliptic ( Fig. 7C ).

Redescription of male. Body length 7.63–9.09 mm (mean = 8.47 mm); wing length 7.20–9.23 mm (8.35 mm) (n = 7).

Coloration. Head yellow-pruinose ( Fig. 5E ). Frontal vitta light brown to brown. Ocellar triangle dark brown. Fronto-orbital plate and lunule brownish-yellow. Antenna yellowish-orange. Parafacial, gena, facial ridge, face and mouthparts brownish-yellow. Occiput brown in upper area, becoming brownish-yellow in lower area. Thorax silver-pruinose ( Figs 9E , 11E ). Scutum brownish-yellow to light brown; presutural scutum with three silver-pruinose stripes merged posteriorly after suture. Postpronotal lobe and lateral surface of thorax brownish-yellow. Scutellum and subscutellum brownish-yellow. Wing hyaline ( Fig. 23G ). Tegula, basicosta, veins, halter and calypteres brownish-yellow. Legs brownish-yellow. Abdomen brownish-yellow at base, becoming brown after tergite three; with silver pruinosity.

Head ( Figs 5E , 23A, C ). Elliptic in frontal view; ratio of head height/head width 0.80. Ocelli subequal to dorsal ommatidia. Postocellar setae 2–3. Frontal vitta entirely or partially obliterated, subequal in width to ocellar triangle. Frontal setae 7–9, convergent, posterior ones shorter and weaker. Arista weakly plumose. First flagellomere 2.4 times longer than pedicel. Face 1.2 times wider than facial ridge. Facial ridge 2.3 times wider than parafacial.

Thorax. Basisternum 0.40 times as high as wide ( Fig. 23E ); median upper margin rounded and long, subrectangular. Prosternal tympanal membrane 0.74 times as high as wide. Proepimeral setae 2–3, upcurved. Anterodorsal corner of anepisternum with 1 weak seta, about 1/2 length of first notopleural seta; posterior row with 8–9 setae. Meral setae 8–10. Wing. Subequal to body length, three times longer than wide. Basicosta subequal in width to tegula. Base of vein R 4+5 with 3–4 dorsal and 3–4 ventral setae. Section of vein M between crossvein dm-cu and M 1 straight. Legs. Fore femur with row of 13–15 dorsal setae from base to apex and row of 15–20 posteroventral setae from base to apex. Fore tibia with row of 4–5 equally-spaced anterodorsal setae and 1 preapical seta. Mid femur with 2–3 posteroventral basal setae. Hind femur with row of 17–19 anterodorsal setae from base to apex and 3–4 anteroventral basal setae. Hind tibia with 2–3 posterodorsal median setae and 1 preapical seta.

Terminalia ( Fig. 39B ). Sternite 5 subtrapezoidal; lateral distal lobes weakly pronounced. Anteroventral epandrial process extending beyond ventral epandrial margin. Dorsal surface of epandrium short, posterior margin higher than anterior margin; lateral ventral margin sharply curved; posterior area articulated to surstylus with open, rounded arch. Surstylus stout, thicker than apex of cerci in lateral view; posterior outer surface covered with strong setae in upper two-thirds; posterior inner surface with few strong setae medially. Cerci: basal margin slightly curved; apex about 2/5 length of cerci, rounded in posterior view, thick and tapered in lateral view; apex 3/5 width of cerci in posterior view, gradually constricted; apex with anterior surface U-shaped. Postgonite slightly curved, apex rounded in lateral view.

Redescription of female. Differs from male as follows. Body length 6.92–8.37 mm (mean = 7.80 mm); wing length 7.82–9.72 mm (mean = 8.97 mm) (n = 10). Head ( Figs 7E , 23B, D ). Frontal vitta twice width of fronto-orbital plate. Frontal setae 6–8, from lunule to posterior orbital proclinate seta; second or third anteriormost frontal seta stronger and subequal to subvibrissal setae. First flagellomere 2.6 times as long as pedicel. Thorax. Basisternum 0.42 times as high as wide ( Fig. 23F ); median upper margin rounded, subtriangular, with broad base. Prosternal tympanal membrane elliptic, 0.67 times as high as wide.

Remarks. The males were associated with the females by being from the same locality. Tavares (1964) considered that O. inflata might be a species from a distinct genus related to Ormiophasia , due to characters present in the original description of Séguy such as the longer first flagellomere, four times as long of pedicel, the small ocelli and abdomen with one yellow dorsal median line ( Tavares 1964: 38). However, the holotype of O. inflata has the first flagellomere three times as long as the pedicel ( Fig. 24B, F ), ocelli well developed ( Fig. 24D ) and abdomen entirely brownish-yellow ( Fig. 24A, C ), which is also the case for the additional material examined. Furthermore, Tavares (1964) did not examine the holotype female of O. inflata and described O. travassosi based only on males. When examining the additional material, it was possible to identify female specimens through direct comparison with the holotype of O. inflata , due to the stoutness of the body ( Figs 13E , 24A, C ) and the subtrapezoidal shape of the head ( Figs 7E , 24B ). Some males were associated with these females and the male terminalia ( Fig. 39B ) were compared to those of the type material of O. travassosi , which is how the correlation between these two taxa was established. We therefore propose the following synonymy: Ormiophasia travassosi Tavares, 1964 syn. nov. of Ormiophasia inflata ( Séguy, 1927b) . The name “ Ormia inflata ”, which is written on the original label of P. inflata ( Fig. 24H ), may be a previous and incorrect identification by Séguy, since it dates from 1925 and the original publication of P. inflata is posterior to this date. More comments on Tavares’s key relative to O. travassosi , and comparisons between O. inflata and O. costalimai , can be found in the Remarks under O. costalimai . Ormiophasia inflata seems to be restricted to the Amazon rainforest.

Figures

FIGURE 3. Schematic drawings of terminalia of Ormiophasia spp. A. Ormiophasia busckii Townsend, male terminalia in lateral view. B. Ormiophasia inflata (Séguy), female terminalia in ventral view. Scale bar: 0.5 mm. Abbreviations: av epand proc = anteroventral epandrial process; bac scl = bacilliform sclerite; basph = basiphallus; epand = epandrium; cerc = cercus; distph = distiphallus; ej apod = ejaculatory apodeme; hyp = hypoproct; hypd = hypandrium; pgt = postgonite; phapod = phallapodeme; pregt = pregonite; st = sternite; sur = surstylus; tg = tergite.

FIGURE 5. Ormiophasia spp., male heads in frontal view. A. Ormiophasia busckii Townsend (specimen from Panama, Barro Colorado Island, USNM). B. Ormiophasia causeyi Tavares (specimen from Brazil, Amazonas, INPA). C. Ormiophasia costalimai Tavares (specimen from Brazil, Amazonas, INPA). D. Ormiophasia cruzi Tavares (specimen from Brazil, São Paulo, MZSP). E. Ormiophasia inflata (Séguy) (specimen from Venezuela, Amazonas, MIZA). F. Ormiophasia lanei Tavares (specimen from Brazil, São Paulo, MZSP). G. Ormiophasia morardi (Séguy) (specimen from Brazil, Amazonas, INPA). H. Ormiophasia obscura (Séguy) (holotype, MNHN). Scale bars: 1 mm.

FIGURE 7. Ormiophasia spp., female heads in frontal view. A. Ormiophasia busckii Townsend (specimen from Panama, Barro Colorado Island, USNM). B. Ormiophasia causeyi Tavares (specimen from Brazil, Amazonas, INPA). C. Ormiophasia costalimai Tavares (specimen from Brazil, Amazonas, INPA). D. Ormiophasia cruzi Tavares (specimen from Brazil, Rio de Janeiro, CEIOC). E. Ormiophasia inflata (Séguy) (specimen from Brazil, Pará, MPEG). F. Ormiophasia lanei Tavares (specimen from Brazil, São Paulo, MZSP). G. Ormiophasia morardi (Séguy) (specimen from Brazil, Amazonas, INPA). H. Ormiophasia guimaraesi sp. nov. (paratype from Costa Rica, Limón, MNCR). Scale bars: 1 mm.

FIGURE 9. Ormiophasia spp., male habitus in dorsal view. A. Ormiophasia busckii Townsend (specimen from Panama, Barro Colorado Island, USNM). B. Ormiophasia causeyi Tavares (specimen from Brazil, Amazonas, INPA). C. Ormiophasia costalimai Tavares (specimen from Brazil, Amazonas, INPA). D. Ormiophasia cruzi Tavares (specimen from Brazil, São Paulo, MZSP). E. Ormiophasia inflata (Séguy) (specimen from Venezuela, Amazonas, MIZA). F. Ormiophasia lanei Tavares (specimen from Brazil, São Paulo, MZSP). G. Ormiophasia morardi (Séguy) (specimen from Brazil, Amazonas, INPA). H. Ormiophasia obscura (holotype, MNHN). Scale bars: 1 mm.

FIGURE 11. Ormiophasia spp., male habitus in lateral view. A. Ormiophasia busckii Townsend (specimen from Panama, Barro Colorado Island, USNM). B. Ormiophasia causeyi Tavares (specimen from Brazil, Amazonas, INPA). C. Ormiophasia costalimai Tavares (specimen from Brazil, Amazonas, INPA). D. Ormiophasia cruzi Tavares (specimen from Brazil, São Paulo, MZSP). E. Ormiophasia inflata (Séguy) (specimen from Venezuela, Amazonas, MIZA). F. Ormiophasia lanei Tavares (specimen from Brazil, São Paulo, MZSP). G. Ormiophasia morardi (Séguy) (specimen from Brazil, Amazonas, INPA). H. Ormiophasia obscura (Séguy) (holotype, MNHN). Scale bars: 1 mm.

FIGURE 13. Ormiophasia spp., female habitus in dorsal view. A. Ormiophasia busckii Townsend (specimen from Panama, Barro Colorado Island, USNM). B. Ormiophasia causeyi Tavares (specimen from Brazil, Amazonas, INPA). C. Ormiophasia costalimai Tavares (specimen from Brazil, Amazonas, INPA). D. Ormiophasia cruzi Tavares (specimen from Brazil, Rio de Janeiro, CEIOC). E. Ormiophasia inflata (Séguy) (specimen from Brazil, Pará, MPEG). F. Ormiophasia lanei Tavares (specimen from Brazil, São Paulo, MZSP). G. Ormiophasia morardi (Séguy) (specimen from Brazil, Amazonas, INPA). H. Ormiophasia guimaraesi sp. nov. (paratype from Costa Rica, Limón, MNCR). Scale bars: 1 mm.

FIGURE 23. Ormiophasia inflata (Séguy) (male from Venezuela, Amazonas, MIZA and female from Brazil, Pará, MPEG). A. Male head, lateral view. B. Female head, lateral view. C. Male head, dorsal view. D. Female head, dorsal view. E. Male prothorax. F. Female prothorax. G. Male right wing, dorsal view. Scale bars: 1 mm.

FIGURE 24. Pseudormia inflata Séguy, holotype ♀ (MNHN). A. Dorsal habitus. B. Head, frontal view. C. Lateral habitus. D. Head, dorsal view. E. Prothorax. F. Head, lateral view. G. Right wing, dorsal view. H. Labels. Scale bars: 1 mm.

FIGURE 25. Ormiophasia travassosi Tavares, holotype ♂ (CEIOC). A. Lateral habitus. B. Head, frontal view. C. Left wing, dorsal view (image flipped). D. Head, lateral view. E. Labels. Scale bars: 1 mm.

FIGURE 39. Male terminalia of Ormiophasia spp. From left to right: epandrium, surstyli and cerci in posterior view; epandrium, surstylus and cerci in lateral view; hypandrium, aedeagus, phallapodeme, pregonite and postgonite in lateral view. A. Ormiophasia cruzi Tavares. B. Ormiophasia inflata (Séguy). C. Ormiophasia lanei Tavares. Scale bars: 0.5 mm.