Ormiophasia morardi ( Séguy, 1926b ),

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: 43-46

publication ID

https://doi.org/10.11646/zootaxa.4643.1.1

publication LSID

lsid:zoobank.org:pub:518ACC5F-A320-4EBD-B750-50006F40B054

DOI

http://doi.org/10.5281/zenodo.4333262

persistent identifier

http://treatment.plazi.org/id/03E98795-FFB9-1153-FF53-FBA1FC47C0E8

treatment provided by

Felipe

scientific name

Ormiophasia morardi ( Séguy, 1926b )
status

 

Ormiophasia morardi ( Séguy, 1926b) 

( Figs 5GView FIGURE 5, 7GView FIGURE 7, 9GView FIGURE 9, 11GView FIGURE 11, 13GView FIGURE 13, 28–29View FIGURE 28View FIGURE 29, 40AView FIGURE 40)

Pseudoneoptera morardi Séguy, 1926b: 19  (description of female). Holotype female (MNHN), examined. Type locality: French Guiana.

Pseudoneoptera morardi: Séguy (1927a: 424  ; catalog).

Ormiophasia morardi: Townsend (1931: 82  ; placement of P. morardi  in Ormiophasia  ); Townsend (1938: 236; catalog); Sa- brosky (1953: 182; catalog); Tavares (1964: 38; comments on synonymy), Guimarães (1971: 22; catalog).

Type material examined. HOLOTYPE ♀ ( Fig. 29View FIGURE 29): “934”/ “ Guyane Françse [Française]/ Noveau Chautier”/ “Mu- seum Paris/ Guyane Française/ Coll. E. Séguy 1919”/ “Type”/ “aile preparation, no 1291 [handwriting]”/ “ Pseudoneoptera morardi Seguy  / Genotype/ E. Seguy det. 19”/ “Type” [red label]/ “ P. morandi  [misspelling], 112” ( MNHN). 

Additional material examined. Brazil: 1 ♀, Amapá, Amapari River , 29.vi.1959, I. Lane leg. ( CEIOC)  ; 1 ♂, 1 ♀, Amazon River , [no date], H.W. Bates leg. ( NHMUK)  ; 1 ♀, Amazonas, Castanho-Careiro, AM 359 [highway] Km 39, 3º43’59”S 60º20’09”W, 6–7.xi.2010, J.A. Rafael et al. leg. ( INPA)GoogleMaps  ; 1 ♀, Amazonas, Manaus, Reserva Ducke , vi.1976, L. Albuquerque leg. ( INPA)  ; 1 ♀, Amazonas, Manaus, Km 14, 40 m, 2º35’21”S 60º06’55”W, 26.x.2003, J.A. Rafael et al. leg. ( INPA)GoogleMaps  ; 1 ♂ [photographed] ( Figs 5GView FIGURE 5, 9GView FIGURE 9, 11GView FIGURE 11, 28A, C, E, GView FIGURE 28), 1 ♀ [photographed] ( Figs 7GView FIGURE 7, 13GView FIGURE 13, 28B, D, FView FIGURE 28), Amazonas, Manaus, Km 14, 40 m, 2º35’21”S 60º06’55”W, 21–24.i.2004, C.S. Mota 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, Manaus, Km 14, 40 m, 2º35’21”S 60º06’55”W, 16–19.iv.2004, J.A. Rafael et al. leg. ( INPA)GoogleMaps  ; 3 ♀♀ [one dissected], Amazonas, Manaus, Km 14, 40 m, 2º35’21”S 60º06’55”W, 13–16.viii.2004, J.A. Rafael et al. leg. ( INPA)GoogleMaps  ; 1 ♀, Pará, Altamira, Xingu River , 3º39’S 52º22’W, 13–21.x.1986, P. Spangler & O. Flint leg. ( USNM)GoogleMaps  ; 1 ♀, Pará, Cachimbo , 6–14.vi.1956, Travasso & Adão leg. ( CEIOC)  ; 1 ♀, Pará, Jambuaçú, Mojú , vii.1967, E.P.D.Z. & M.G. leg. ( MPEG)  . French Guiana: 1 ♀, Cuyuni-Mazaruni, Saut-Maripa, Oyapock , 26.xi.1969, Balachowsky & Gruner leg. ( MNHN)  .

Distribution. Brazil (states of Amapá, Amazonas and Pará) and French Guiana (region of Cuyuni-Mazaruni).

Diagnosis. Ormiophasia morardi  can be distinguished from other species of Ormiophasia  by head with silver pruinosity ( Figs 5GView FIGURE 5, 7GView FIGURE 7); clypeus darker than frontoclypeal membrane; thorax and abdomen dark brown ( Figs 9GView FIGURE 9, 11GView FIGURE 11, 13GView FIGURE 13); wing with strong infuscation around veins R 1 and R 2+3 and weak infuscation around veins M 1 and dm-cu ( Fig. 28GView FIGURE 28); and apex of male cerci about 1/3 length of cerci ( Fig. 40AView FIGURE 40), subquadrate in posterior view and 1/3 width of cerci, gradually constricted. Ormiophasia morardi  is very similar to O. buoculus  sp. nov., from which it is distinguishable only in the male sex. Males of O. morardi  have ocellar triangle visible in profile ( Fig. 28AView FIGURE 28) and ocelli 1.5 times the size of the dorsal ommatidia ( Fig. 5GView FIGURE 5), whereas males of O. buoculus  sp. nov. have a very constricted ocellar triangle, not visible in profile ( Fig. 37AView FIGURE 37), and ocelli smaller than the dorsal ommatidia ( Fig. 6GView FIGURE 6).

Description of male. Body length 6.33–8.91 mm (mean = 7.14 mm); wing length 6.85–8.60 mm (7.34 mm) (n = 4).

Coloration. Head silver-pruinose ( Fig. 5GView FIGURE 5). Frontal vitta dark brown. Ocellar triangle black. Fronto-orbital plate gray. Lunule yellowish-gray. Antenna yellowish-orange to brownish-orange. Parafacial gray. Gena, facial ridge and face brownish-gray. Mouthparts brown except clypeus (dark brown). Occiput dark brown in upper area, becoming light brown in lower area. Thorax silver-pruinose ( Figs 9GView FIGURE 9, 11GView FIGURE 11). Scutum dark brown; presutural scutum with three silver-pruinose stripes merged posteriorly after suture. Postpronotal lobe and lateral surface of thorax dark brown to brown. Scutellum and subscutellum dark brown. Wing with strong brown infuscation around veins R 1 and R 2+3 and weak brown infuscation around veins M 1 and dm-cu ( Fig. 28GView FIGURE 28). Tegula dark brown. Basicosta light brown. Veins and halter light brown. Calypteres brown. Legs dark brown. Abdomen entirely dark brown with silver pruinosity.

Head ( Figs 5GView FIGURE 5, 28A, CView FIGURE 28). Elliptic in frontal view; ratio of head height/head width 0.40. Ocelli 1.5 times the diameter of dorsal ommatidia. Postocellar setae 2. Frontal vitta entirely obliterated. Frontal setae 7–9, convergent, posterior ones shorter and weaker. Arista weakly plumose. First flagellomere 2.1 times longer than pedicel. Face 1.5 times wider than facial ridge. Facial ridge 2.6 times wider than parafacial.

Thorax. Basisternum 0.66 times as high as wide ( Fig. 28EView FIGURE 28); median upper margin rounded and long, subtriangular. Prosternal tympanal membrane 0.67 times as high as wide. Proepimeral setae 2, upcurved. Anterodorsal corner of anepisternum with 1 weak seta, about 1/2 length of first notopleural seta; posterior row with 7–8 setae. Meral setae 6–9. Wing. Subequal to body length, three times longer than wide. Basicosta subequal in width to tegula. Base of vein R 4+5 with 2–4 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 14–17 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 12–14 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. 40AView FIGURE 40). Sternite 5 subtrapezoidal; lateral distal lobes pronounced. Anteroventral epandrial process continuous with ventral epandrial margin. Dorsal surface of epandrium short, posterior margin higher than anterior margin; lateral ventral margin slightly curved; posterior area articulated to surstylus with closed, 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 with distinct median projection; apex about 1/3 length of cerci, subquadrate in posterior view, narrow and tapered in lateral view; apex 1/3 width of cerci in posterior view, gradually constricted; apex with anterior surface V-shaped. Postgonite slightly curved, apex tapered in lateral view.

Redescription of female. Differs from male as follows. Body length 6.12–6.97 mm (mean = 6.66 mm); wing length 6.11–8.29 mm (mean = 7.25 mm) (n = 10). Head ( Figs 7GView FIGURE 7, 28B, DView FIGURE 28). Frontal vitta 1.5 times width of frontoorbital plate. Frontal setae 8–9, from lunule to posterior orbital proclinate seta; second or third anteriormost frontal seta stronger and subequal to subvibrissal setae. First flagellomere 2.8 times as long as pedicel. Thorax. Basisternum 0.53 times as high as wide ( Fig. 28FView FIGURE 28); median upper margin rounded and long, subtriangular. Prosternal tympanal membrane elliptic, 0.78 times as high as wide. Wing 2.7 times longer than wide.

Remarks. The males were associated with the females both by being from the same locality and through body color and infuscation of wing. In the original description, Séguy (1926b) mentioned the distinct infuscation of the wing ( Fig. 29GView FIGURE 29): “Ailes fortement rembrunies le long du bord costal—une ombre plus pâle le long des nervures, surtout des deux grandes transverses”. Neither Townsend nor Tavares referenced this character in their studies. Séguy also assigned to O. morardi  microscopic ocelli, which is a clear characteristic of the male of O. buoculus  sp. nov. ( Fig. 37CView FIGURE 37). However, it is not possible to know if this character is also present in females of O. buoculus  sp. nov., since the female of this species remains unknown. Additionally, the holotype female of O. morardi  does not present microscopic ocelli ( Fig. 29B, DView FIGURE 29), showing no conspicuous difference in ocelli size when compared to any other female of Ormiophasia  . As already detailed above in the diagnosis, the distinction between O. morardi  and O. buoculus  sp. nov. is based only on male characters. Since there were no male specimens from French Guiana available for this study and it was not possible to associate any female to the males described as O. buoculus  sp. nov., the association between males and females of O. morardi  should be considered provisional. The male and female specimens described here as O. morardi  were associated with each other because this was the only series with female specimens available for comparison with the holotype. Therefore, the association between this series and this nominal species was justified. However, due to the lack of complementary information regarding French Guiana specimens and females of O. buoculus  sp. nov., this issue could not be solved in the present study. A similar situation occurred with O. seguyi  sp. nov. and O. townsendi  sp. nov., as discussed in their respective descriptions. Ormiophasia morardi  seems to be restricted to the Amazon rainforest.

MNHN

Museum National d'Histoire Naturelle

NHMUK

Natural History Museum, London

INPA

Instituto Nacional de Pesquisas da Amazonia

USNM

Smithsonian Institution, National Museum of Natural History

MPEG

Museu Paraense Emilio Goeldi

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Tachinidae

Genus

Ormiophasia

Loc

Ormiophasia morardi ( Séguy, 1926b )

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

Pseudoneoptera morardi Séguy, 1926b: 19

Seguy, E. 1926: 19
1926