Tachytes flavocinereus Arnold

Pulawski, Wojciech J., 2019, A Review of the Wasp Genus Tachytes Panzer, 1806 of Madagascar (Hymenoptera: Crabronidae), Proceedings of the California Academy of Sciences 66 (7), pp. 117-135 : 123-124

Tachytes flavocinereus Arnold

Figures 12 –17.

Tachytes flavocinereus Arnold, 1945:112 , ♀, ♂ (as flavocinerea, incorrect original termination). Lectotype: ♂, Madagascar:, Bekily (MNHN), present designation. – Leclercq, 1961:112 ( Madagascar: locality records). – As Tachytes flavocinereus : R. Bohart and Menke, 1976:265 (in checklist of world Sphecidae ); Leclercq, 1990:118 ( Madagascar: locality records); Pulawski, 2003:798 (in checklist of Malagasy Sphecidae ); Madl, 2014:986 (in catalog of Ampulicidae , Crabronidae , and Sphecidae of Madagascar, with synonymy and locality records).

LECTOTYPE SELECTION.— Madame Claire Villemant of the MNHN kindly sent me, in 2009,

a pair of Arnold’s syntypes of Tachytes flavocinereus , both collected at Bekily , Madagascar. I have selected the male as the lectotype , and the female as a paralectotype.

RECOGNITION.— Among the species with the galea shorter than the scape, the female of T. flavocinereus can be recognized by the non-emarginate clypeal lamella ( Fig. 12 ). Subsidiary recognition features are: apical depressions of terga I-IV with silvery setal fasciae; galea slightly longer than wide ( Fig. 13 ); admedian scutal line not concealed by vestiture; scutal punctures not excessively fine ( Fig. 15 ); setae of the pygidial plate cupreous. In the other such species, the clypeal lamella is emarginate mesally, although the emargination is inconspicuous in some

Figures

FIGURES 12–16. Tachytes flavocinereus Arnold. (12) Female clypeus; (13) Female galea; (14) Anterodorsal part of thorax showing patch of appressed, silvery setae; (15) Scutal punctures of female; (16) Male genitalia in dorsal view (arrow shows apex of volsella).