Ormiophasia busckii Townsend, 1919,

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: 12-25

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.4333256

persistent identifier

http://treatment.plazi.org/id/03E98795-FF98-1166-FF53-FDFDFBBEC370

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scientific name

Ormiophasia busckii Townsend, 1919
status

 

Ormiophasia busckii Townsend, 1919 

( Figs 3AView FIGURE 3, 4AView FIGURE 4, 5AView FIGURE 5, 7AView FIGURE 7, 9AView FIGURE 9, 11AView FIGURE 11, 13AView FIGURE 13, 15–16View FIGURE 15View FIGURE 16, 38AView FIGURE 38)

Ormiophasia busckii Townsend, 1919: 165  (description of female). Holotype female (USNM), examined. Type locality: Panama, Cabima.

Ormia busckii: Malloch (1929: 279  ; as Ormia  , comments about validity of Ormiophasia  , record from San José, Costa Rica); Curran (1934: 495; key to species of Ormia  , record from Kartabo [ Guyana]).

Ormiophasia busckii: Townsend (1931: 82  ; synonymy of inflata  and obscura  with busckii  ); Townsend (1938: 236; catalog, description); Sabrosky (1953: 182; catalog, record from Venezuela); Grégoire (1959: 13, 15, 18; as bushkii, misspelling, pattern of hemolymph coagulation in insects); Tavares (1964: 38, catalog; 39, key to species of Ormiophasia  ; 41, comparison to O. lanei  ; 44, comparison to O. causeyi  ; 47, comparison to O. costalimai  ; 49, comparison to O. cruzi  ); Guimarães (1971: 22; catalog); Evenhuis et al. (2015: 197; catalog of Townsend’s genera); Nihei (2016: 914 View Cited Treatment ; catalog of Diptera  of Colombia, discussion of record in Colombia).

Type material examined. HOLOTYPE ♀ ( Fig. 16View FIGURE 16): “ Cabima , Pan [ Panama]/ May 24.11 [1911]/ August Busck [leg.]”/ “TD 4418 [handwriting]”/ “ Type / No. [blank]/ U.S.N.M.” [red label]/ “ Ormiophasia busckii  T./ ♀ / Det CHTT” ( USNM). 

Additional material examined. Panama: 1 ♀, Arraijan , 24.vi.1952, F.S. Blanton leg. ( USNM)  ; 1 ♀, Canal Zone , Barro Colorado Island, 10.v.1926, C.T. Greene leg. ( NHMUK)  ; 1 ♀, Canal Zone , Barro Colorado Island, 31.vii.1940 [no collector] ( CEIOC)  ; 1 ♀, Canal Zone , Barro Colorado Island, 1.i.1941, Cooper leg. ( USNM)  ; 1 ♀, Canal Zone , Barro Colorado Island, 2.v.1941, Jas Zetek leg., No. 4784 ( USNM)  ; 1 ♀, Canal Zone , Barro Colorado Island, 2.v.1941, Jas Zetek leg., No. 4784 ( CEIOC)  ; 1 ♀, Canal Zone , Barro Colorado Island, x.1942, Jas Zetek leg. ( USNM)  ; 1 ♀, Canal Zone , Barro Colorado Island, 16.vi.1956, Carl W. & Marian E. Rettenmeyer leg. ( USNM)  ; 1 ♀, Canal Zone , Barro Colorado Island, 30.vi.1956, Carl W. & Marian E. Rettenmeyer leg. ( USNM)  ; 1 ♂, 9 ♀♀, Canal Zone , Barro Colorado Island, 1–9.v.1964, W.D. & S.S. Duckworth leg. ( USNM)  ; 1 ♂, 1 ♀, Canal Zone , Barro Colorado Island, 10–17.v.1964, W.D. & S.S. Duckworth leg. ( USNM)  ; 1 ♂ [dissected], 4 ♀♀ [one dissected], Canal Zone , Barro Colorado Island, 5–10.iv.1965, S.S. & W.D. Duckworth leg. ( USNM)  ; 18 ♀♀ [one dissected], Canal Zone , Barro Colorado Island, 10–20.iv.1965, S.S. & W.D. Duckworth leg. ( USNM)  ; 1 ♂ [photographed] ( Figs 5AView FIGURE 5, 9AView FIGURE 9, 11AView FIGURE 11, 15A, C, E, GView FIGURE 15), Canal Zone , Barro Colorado Island, 12–14.iii.1975, R. Silberglied leg. ( USNM)  ; 1 ♀, Ca- nal Zone , Barro Colorado Island, 17.iii.1976, Silberglied & Aiello leg. ( USNM)  ; 1 ♀ [photographed] ( Figs 7AView FIGURE 7, 13AView FIGURE 13, 15B, D, FView FIGURE 15), Canal Zone , Barro Colorado Island, 31.iii.1978, Silberglied & Aiello leg. ( USNM)  ; 1 ♂ [dissected], Canal Zone , Barro Colorado Island, 17.iii.1978, Silberglied & Aiello leg. ( USNM)  ; 1 ♀, Canal Zone , Barro Colo- rado Island, 22.iv.1978, Silberglied & Aiello leg. ( USNM)  ; 1 ♀, Canal Zone , Barro Colorado Island, 21.vi.1978, N.E. Woodley leg. ( USNM)  ; 2 ♀♀, Canal Zone , Navy Res., Nr. Gamboa, 29.iii.1965, S.S. & W.D. Duckworth leg. ( USNM)  ; 2 ♀♀, Cerro Campana , Nr. chica, 2–5.iv.1965, S.S. & W.D. Duckworth leg. ( USNM)  ; 1 ♀, Potrerillos , 27.i.1934, D.V. Brown leg. ( USNM)  .

Distribution. Panama (provinces of Chiriqui, Panama and Panama Oeste).

Diagnosis. Ormiophasia busckii  can be distinguished from other species of Ormiophasia  by ocellar triangle bare, without setulae ( Fig. 15View FIGURE 15 C–D); head with yellow pruinosity ( Figs 5AView FIGURE 5, 7AView FIGURE 7); body entirely brown with base of abdomen brownish-yellow ( Figs 9AView FIGURE 9, 11AView FIGURE 11, 13AView FIGURE 13); wing hyaline ( Fig. 15GView FIGURE 15); dorsal surface of epandrium broad with posterior margin inclined posteriorly, higher than anterior margin ( Fig. 38AView FIGURE 38); and apex of male cerci about 1/2 length of cerci, rounded in posterior view, and little more than 1/3 of cerci width, abruptly constricted. The shape of the male cerci of O. busckii  is similar to that in O. tavaresi  sp. nov. ( Fig. 41CView FIGURE 41), but this last species can be easily distinguished by the darker body color ( Figs 6EView FIGURE 6, 8DView FIGURE 8, 10EView FIGURE 10, 14DView FIGURE 14), silver pruinosity on the head, clypeus darker than frontoclypeal membrane, and anteroventral epandrial process extending well beyond ventral epandrial margin. The body color of O. obscura  ( Figs 9HView FIGURE 9, 11HView FIGURE 11) is similar to that of O. busckii  , but O. obscura  has a setulose ocellar triangle and head with silver pruinosity ( Fig. 5HView FIGURE 5).

Description of male. Body length 7.68–8.41 mm (mean = 7.94 mm); wing length 7.63–8.49 mm (mean = 8 mm) (n = 6).

Coloration. Head yellow-pruinose ( Fig. 5AView FIGURE 5). Frontal vitta brown. Ocellar triangle 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 9AView FIGURE 9, 11AView FIGURE 11). Scutum brown; presutural scutum with three silver-pruinose stripes merged posteriorly after suture. Postpronotal lobe brownish-yellow. Lateral surface of thorax brownish-yellow. Scutellum brown. Subscutellum brownish-yellow. Wing hyaline ( Fig. 15GView FIGURE 15). Tegula, basicosta, veins, halter and calypteres brownish-yellow. Legs brownish-yellow. Abdomen brownish-yellow at base, becoming brown after tergite three; with silver pruinosity. Sternites brownish-yellow.

Head ( Figs 5AView FIGURE 5, 15A, CView FIGURE 15). Elliptic in frontal view; ratio of head height/head width 0.80. Ocelli twice the diameter of dorsal ommatidia. Postocellar setae 3. Frontal vitta obliterated. Frontal setae 7–8, convergent, posterior ones shorter and weaker. Arista bare. First flagellomere twice length of pedicel. Face 1.5 times wider than facial ridge. Facial ridge 2.5 times wider than parafacial.

Thorax. Basisternum 0.62 times as high as wide ( Fig. 15EView FIGURE 15); median upper margin rounded, subtriangular. Prosternal tympanal membrane 0.79 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 6–9 setae. Meral setae 6–8. Wing. Subequal to body length, three times longer than wide. Basicosta subequal in width to tegula. Base of vein R 4+5 with 2 dorsal and 2–4 ventral setae. Section of vein M between crossvein dm-cu and M 1 straight. Legs. Fore femur with row of 10–11 dorsal setae and row of 12–15 posteroventral setae, distributed from base to apex. Fore tibia with row of 4 equally-spaced anterodorsal setae and 1 preapical seta. Mid femur with 2–3 basal posteroventral setae. Hind femur with row of 11–12 anterodorsal setae distributed from base to apex and 3–4 anteroventral basal setae. Hind tibia with 2–3 median posterodorsal setae and 1 preapical seta.

Terminalia ( Fig. 38AView FIGURE 38). Sternite 5 subtrapezoidal; lateral distal lobes pronounced. Anteroventral epandrial process continuous with ventral epandrial margin. Dorsal surface of epandrium broad, posterior margin inclined posteriorly, higher than anterior margin; lateral ventral margin slightly curved; posterior area articulated to surstylus with closed, rounded arch. Surstylus stout, as thick as apex of cerci in lateral view; posterior outer surface covered with strong setae in upper two-thirds. Cerci: basal margin slightly curved, without a distinct median projection; apex about 1/2 total length of cerci, rounded in posterior view, thick and rounded in lateral view; apex a little more than 1/3 width of cerci in posterior view, abruptly constricted; apex with anterior surface V-shaped. Postgonite slightly curved, of same thickness over its entire length; apex rounded in lateral view.

Redescription of female. Differs from male as follows. Body length 7.54–8.43 mm (mean = 8.07 mm); wing length 8.16–9.21 mm (mean = 8.82 mm) (n = 10). Head ( Figs 7AView FIGURE 7, 15B, DView FIGURE 15). Frontal vitta subequal in width to frontoorbital plate. Frontal setae 6–8, from lunule to posterior orbital proclinate seta; second or third anteriormost frontal seta stronger and subequal to subvibrissal setae. Thorax. Basisternum 0.60 times as high as wide ( Fig. 15FView FIGURE 15); median upper margin rounded, subtriangular, with broad base. Prosternal tympanal membrane elliptic, 0.84 times as high as wide.

Remarks. The males were associated with the females both by being from the same locality and through body color and ocellar triangle bare. The male of O. busckii  is described for the first time in the present study. In the original description, Townsend referred to O. busckii  with “ocellar bristles absent” ( Townsend 1919: 165). The term bristle, however, is dubious and can be associated both with setae or setulae. This confusion probably led Tavares to consider O. busckii  as lacking ocellar setae in his key ( Tavares 1964: 39). All Ormiophasia  species have ocellar setae, but O. busckii  is clearly distinguished by its bare ocellar triangle, i.e., without setulae, which can also be verified in the holotype ( Fig. 16AView FIGURE 16). Regarding its distribution, Malloch (1929) recorded O. busckii  in Costa Rica (San José), Curran (1934) in Guyana (Kartabo) and Sabrosky (1953) in Panama, Costa Rica and Venezuela. This information led Nihei (2016) to infer the presence of O. busckii  also in Colombia. However, Ormiophasia  specimens from all these localities were examined and O. busckii  seems to be restricted only to Panama. About Townsend’s synonymies ( Townsend 1931), O. obscura  is distinct from O. busckii  , as already mentioned above, and the male terminalia of O. inflata  are strikingly different ( Fig. 39BView FIGURE 39), which invalidates these nomenclatural acts.

USNM

Smithsonian Institution, National Museum of Natural History

NHMUK

Natural History Museum, London

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Tachinidae

Genus

Ormiophasia

Loc

Ormiophasia busckii Townsend, 1919

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

Ormiophasia busckii: Townsend (1931: 82

Nihei, S. S. 2016: 914
Evenhuis, N. L. & Pont, A. C. & Whitmore, D. 2015: 197
Guimaraes, J. H. 1971: 22
Tavares, O. 1964: 38
Gregoire, C. 1959: 13
Sabrosky, C. W. 1953: 182
Townsend, C. H. T. 1938: 236
Townsend, C. H. T. 1931: 82
1931
Loc

Ormia busckii:

Curran, C. H. 1934: 495
Malloch, J. R. 1929: 279
1929
Loc

Ormiophasia busckii

Townsend, C. H. T. 1919: 165
1919