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

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Ormiophasia inflata ( Séguy, 1927b )


Ormiophasia inflata ( Séguy, 1927b) 

( Figs 3BView FIGURE 3, 5EView FIGURE 5, 7EView FIGURE 7, 9EView FIGURE 9, 11EView FIGURE 11, 13EView FIGURE 13, 23–25View FIGURE 23View FIGURE 24View FIGURE 25, 39BView FIGURE 39)

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. 24View FIGURE 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. 25View FIGURE 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)GoogleMaps  ; 2 ♀♀, Amazonas, Manaus, Km 14, 40 m, 2º35’21”S 60º06’55”W, 18–21.ii.2004, J.A. Rafael et al. leg. ( INPA)GoogleMaps  ; 1 ♂, Amazonas, Novo Airão , 2º38’39”S 60º56’07”W, 28.viii.2011, J.A. Rafael et al. leg. ( INPA)GoogleMaps  ; 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)GoogleMaps  ; 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 7EView FIGURE 7, 13EView FIGURE 13, 23B, D, FView FIGURE 23), 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 5EView FIGURE 5, 9EView FIGURE 9, 11EView FIGURE 11, 23A, C, E, GView FIGURE 23), 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 5EView FIGURE 5, 7EView FIGURE 7); body brownish-yellow ( Figs 9EView FIGURE 9, 11EView FIGURE 11, 13EView FIGURE 13); wing hyaline ( Fig. 23GView FIGURE 23); and apex of male cerci about 2/5 length of cerci ( Fig. 39BView FIGURE 39), 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 9CView FIGURE 9, 11CView FIGURE 11, 13CView FIGURE 13). Additionally, the female head of O. inflata  is usually subtrapezoidal ( Fig. 7EView FIGURE 7) rather than elliptic ( Fig. 7CView FIGURE 7).

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. 5EView FIGURE 5). 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 9EView FIGURE 9, 11EView FIGURE 11). 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. 23GView FIGURE 23). 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 5EView FIGURE 5, 23A, CView FIGURE 23). 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. 23EView FIGURE 23); 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. 39BView FIGURE 39). 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 7EView FIGURE 7, 23B, DView FIGURE 23). 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. 23FView FIGURE 23); 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, FView FIGURE 24), ocelli well developed ( Fig. 24DView FIGURE 24) and abdomen entirely brownish-yellow ( Fig. 24A, CView FIGURE 24), 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 13EView FIGURE 13, 24A, CView FIGURE 24) and the subtrapezoidal shape of the head ( Figs 7EView FIGURE 7, 24BView FIGURE 24). Some males were associated with these females and the male terminalia ( Fig. 39BView FIGURE 39) 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. 24HView FIGURE 24), 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.


Museum National d'Histoire Naturelle


Natural History Museum, London


Instituto Nacional de Pesquisas da Amazonia


Museu Paraense Emilio Goeldi


Smithsonian Institution, National Museum of Natural History


Museo del Instituto de Zoologia Agricola Francisco Fernandez Yepez














Ormiophasia inflata ( Séguy, 1927b )

Gudin, Filipe M. & Nihei, Silvio S. 2019

Ormiophasia inflata: Guimarães (1971: 22

Guimaraes, J. H. 1971: 22

Ormiophasia travassosi Tavares, 1964: 49

Tavares, O. 1964: 49

Ormiophasia travassosi: Tavares (1964: 39

Guimaraes, J. H. 1971: 22
Tavares, O. 1964: 39

Ormiophasia busckii: Townsend (1931: 82

Tavares, O. 1964: 38
Townsend, C. H. T. 1938: 236
Townsend, C. H. T. 1931: 82

Pseudormia inflata, Séguy 1927a: 424

Seguy, E. 1927: 424

Pseudormia inflata Séguy, 1927b: 262

Seguy, E. 1927: 262

Pseudormia inflata, Séguy 1926a: 5

Seguy, E. 1926: 5