Opacifrons ghesquierei VANSCHUYTBROECK, 1951

Papp, L., 2012, Five New Afrotropical Species Of Opacifrons (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 58 (2), pp. 121-143 : 124

Opacifrons ghesquierei VANSCHUYTBROECK, 1951

Opacifrons ghesquièrei VANSCHUYTBROECK, 1951: 10 .

Material studied. Holotype male ( IRSN): Congo belge, Eala- 6-II–1935, J. Guesquière, 179 – R. Mus. Hist. Nat., Belg. I. G. 10.482 – P. VANSCHUYTBROECK det. Opacifrons quesquièréi Vansch. [pencil] “ Opacifrons quesquièrei” –[red] Type – cf. Bull. Inst. Sc. Nat. Belg. “ T. XXVIII, no 41, 1951, p. 10. – “ Bifronsina bifrons (Stenh.) det. L. PAPP 2009.

Paratypes: 11 males 12 females ( IRSN) , 1 male and 1 female ( HNHM, through an exchange in the ‘70ties) : 4 males 6 females: same as for holotypes; 6 males 6 females: ibid., Flandria IV. 1935 ; 1 male: ibid., Eala-II–1935 .

Having studied the holotype, 11 male and 12 female paratypes in the IRSN, as well as a pair of paratypes preserved in the HNHM, incl. identifying males through genitalia preparation, I can state convincingly that they all belong to Bifronsina bifrons (STENHAMMAR) . That is, Opacifrons ghesquierei VANSCHUYT- BROECK, 1951 is a junior subjective synonym of Bifronsina bifrons ( STENHAM- MAR, 1855), syn. n.