Ommatius normus Curran

Scarbrough, Aubrey G., 2008, New Ommatius Wiedemann from the Americas with two new species groups, keys, and taxonomic notes (Diptera: Asilidae), Insecta Mundi 2008 (32), pp. 1-14 : 7-8

Ommatius normus Curran

Fig. 3, 24-32

Ommatius norma Curran, 1928: 2 . Holotype f, type

locality British Guiana [ Guyana]; Hull 1962:

435; Martin and Papavero 1970: 59.

Type material examined. GUYANA: (holotype

f, AMNH). Paratypes: Kartoabo / Bartica District

/ British Guiana / 17.viii.1922 (2 f, AMNH), same

location except 17.viii.1922 (1 f, AMNH); same lo-

cation except 19.vii.1922 (1 f, AMNH); same data

except 17.v.1924 (1 f, AMNH); same data except

1921 (3 f, AMNH); same data except 20.v.1924 (1 f,

AMNH); 19.v.1924 (1 f, AMNH); Bartica B.G ./

29.v.1901 (allotype m, ANSP); same location except

22.v.1901 / R. C. Crews (1 f, ANSP); same location

except 18-19.v.1901 (2 f, ANSP) .

Figure 15-21. Male terminalia of Ommatius neotropicus Additional specimens. BRAZIL: Amazonas / Curran. 15-17) Lateral, dorsal and ventral views. 18) Manaus x.1957 / Elias and Roppa ( NMNH); BRA- Left gonostylus. 19-20) Aedeagus, dorsal and lateral

views. 21) Left side of the ventral lamella, ventral view. ZIL: Lr. Amazonia / 1.iii.1896 / E.E. Austen (1 m,

BMNH); Manaus - AM / Brazil vi.59 / C. Elias (4 m,

DZUP). Goiás / Campinas / ii.1936 / Spitz ( NMNH); Brasilia, Nova Teutonia / 5.xi.1936 / Fritz Plaumann (1 m, BMNH). Maracaju / Mato Grosso / Brasil ~ v. / 1937 ~ Servico Febre / Amerela / M.E.S. Bras. (1 m, OSUC); West border / Mato Grosso / Brazil v.31 ~ R.C. Shannon (1 m, 2 f, NMNH). Benevides, / Para, Brazil / S.M. Klages / CM Acc.6174 (1 f, CMNH); Rondonia / Fazenda Rancho Grande / 62 km S. Ariquemes / 165 m S 10, 32 W 62, 48 [10 o 32’S 62 o 48’W] / 12-22.xi.1991 E.M. Fisher (3 m, 10 f, EMFC); RO / 160-350 m / vic. Caucalandia / 10 o 32’S 62 o 48’W / 1.x.1991 / J. MacDonald (1 f, MEMC); same data except 10 o 32’S 62 o 48’W / 14.x.1991 (1 m, 1 f, MEMC); Villa Americana / [São Paulo] Brazil, ii.1924 ~ F.X. Williams (1 f, NMNH); FN-153esula / Mogi Guaçu [São Paulo] / Faz Campininha / 22-28.x.70 / J.W. Boyes ( CNCI). CAYENNE: Mana River / French Guiana / iii.1917 / Acc 6008 (1 m, CMNH). GUYANA: Kalakoon / Baratica District / British Guiana 1.vii.1924 ~ collected by Stanton Crawford (1 m, CMNH); same data except 12.vii.1924 (1 f, CMNH); same data except 14.vii.1924 (1 f, CMNH); same data except (1 f, CMNH); same data except 28.vii.1924 (1 f, CMNH); Baratica, BG / 13.vi.1901 / C.W. Johnson (1 f, MCZC); same data except 12.vi.1901 (1 f, MCZC); same data except 28.vi.1901 (1 f, MCZC); Baratica, Br. Guinea / 20.v.1901 ~ H.S. Parish (1 f, OSUC); same data except 14.v.1901 ~ H.S. Parish (1 f, OSUC); Br. Guiana / v.1901 / Parish (1 f, NMNH); Br. Guiana / Parish ~ JMAldrich (1 f, NMNH); Wismar / Brit. Guiana / 13.viii.1934 (1 f, NMNH); British Guiana / Kartabo / vi.1922 / M.D. Haviland (1 m, 1 f, BMNH); Mazaruni / Teak Plantation / 24.viii.1937 / British Guiana Richards and Smart (1 m, 2 f, BMNH). PARAGUAY: Inst. Agr. Nao. / Caacupá, Paraguay / Depto. Cordillera / 10.x.1980 ~ RD Cave / colr (1 m, NMNH). SURINAME: Marowijne River / vii.1965 E.A.M. Gale / Cambridge Exped. B.M 1965 - 516 (1 m, 1 f, BMNH); Zanderij i. / 15.xii.1950 / D. Piet (1 m, ZMAN); Kabel Station / 6.i.1951 / D. Piet (1 m, ZMAN); Paramaribo / Bot. Gard. / 25.i.1940 (1 f, AMNH). VENEZUELA: T.F. / San Carlos del Rio / Negro / 1 o 56’N 67 o 3’W / 6-12.xii.1984 / R.L. Brown (1 f, MEMC); T.F. Amazonas / Samariapon 30 km / Caño Paju / v.1979 / H. Martinez (1 m, 2 f, JMAL); Boli- / var m. ~ Rio Surukum, / Carretera Stn. / Elena Icabaru / 850 m 19-3.i.85 ~ F. Fernandez Y / Anibal

Chacon / Jurg Demarmels (2 f, JMAL); Bolivar /

Rio Guaniamo / 160 m, 25-29.v.79 / J. Clavijo, A.

Chacon, G. Yepez (1 m, MIZA); Canaima, Edo.

Bolivar / 14.ii.1972 / J.M. Ayala - Sra (1 f, JMAL) ;

Edo Bolivar / El Manteco / 18.v.1983 / R. Mattei (1

m, JMAL); El Manteco Bol. / iv.1983 (1 f, JMAL) .

Distribution. Brazil, Cayenne, Guyana, Para-

guay, Suriname, and Venezuela. Flight season,

January-December.

Remarks. In addition to the characters in the key,

O. normus is further distinguished from similar Figure 22-23. Spermatheca and ventral view of the female congeners by the combined characters of the terminalia of Ommatius neotropicus Curran.

terminalia (Fig. 24-26). In females, the apical mar-

gin of sternite 8 is only slightly produced whereas it is usually strongly produced in congeners; the apical 1/3 of spermathecae is wider than the basal 2/3, with the two areas separated by a strong constriction (Fig. 31). In addition, the radial cells in the wing of males are often brownish medially. Curran (1928) stated that the dark metatarsus of the middle tarsi and the several brown anteroventral setae on the middle femora distinguish females from congeners. These characters work well in dark specimens but are unreliable for distinguishing the paler, more common, Brazilian specimens in collections. In these, the basal tarsomere of the middle tarsi is yellow and the femora are largely yellow with mostly or entirely yellow anteroventral setae. Lastly, the shapes of sternite 8 and spermathecae are also useful in distinguishing the paler females from Brazil.