Glabellula Bezzi, 1902

Platygaster Zetterstedt, 1838: 574 . Type species: Platygaster arcticus Zetterstedt, 1838, by monotypy. [Preoccupied by Latreille, 1809.]

Sphaerogaster Zetterstedt, 1842: 232 (new replacement name for Platygaster Zetterstedt). Type species: Platygaster arcticus Zetterstedt, 1838, automatic. [Preoccupied by Sturm, 1826.]

Glabella Loew, 1873: 210 . Type species Glabellula femorata Loew, 1873, by monotypy. [Preoccupied by Swainson, 1840.]

Glabellula Bezzi, 1902: 191 (new replacement name for “ Platygaster . und Sphaerogaster . und Glabella ”). Type species: Platygaster arcticus Zetterstedt, 1838, by subsequent designation (I.C.Z.N., 1989: 148 [Opinion 1545]).

Pachyneres Greene, 1924: 62 . Type species: Pachyneres crassicornis Greene, 1924, by monotypy.

Proglabellula Hennig, 1966: 15 . Type species: Proglabellula electrica Hennig, 1966, by monotypy.

Remarks on synonymy of Glabellula . In preparing the world catalog of Mythicomyiidae (Evenhuis, 2002b), I was informed by Dr. Miguel Alonso-Zarazaga that Sphaerogaster Sturm, 1826 was a nomen nudum; and Sphaerogaster Zetterstedt, 1842 was thus not preoccupied. Being a senior synonym of Glabellula Bezzi, 1902, its existence thus potentially threatened the stability of the usage of the name Glabellula . Using the procedures for Reversal of Precedence, Evenhuis (2002b: 28) deemed Sphaerogaster Zetterstedt, 1842 to be a nomen oblitum and Glabellula Bezzi, 1902 to be a nomen protectum.

Subsequent to the publication of Evenhuis (2002b), I was informed by Dr. F.C. Thompson that Sphaerogaster Sturm, 1826 was not a nomen nudum and the action of Reversal of Precedence was unnecessary. A check of Sturm (1826: 34) during this study corroborates Thompson’s claim. Although brief, the statement by Sturm: “Von der Aehnlichkeit mit einer schwarzen Spinne” [From the resemblance to a black spider]” is enough wording of “characters to differentiate” to make the genus-group name available in that work.