Panurgus subgenus Pachycephalopanurgus Patiny, 1999

Wood, Thomas J., Patiny, Sebastien & Bossert, Silas, 2022, An unexpected new genus of panurgine bees (Hymenoptera, Andrenidae) from Europe discovered after phylogenomic analysis, Journal of Hymenoptera Research 89, pp. 183-210 : 183

Panurgus subgenus Pachycephalopanurgus Patiny, 1999 stat. rev.

Panurgus (Pachycephalopanurgus) Patiny, 1999c: 316. Type species: Panurgus rungsii Benoist, 1937, by original designation.

Panurgus (Stenostylus) Patiny, 1999c: 317. [not Stenostylus Pilsbury, 1898]. Type species: Panurgus ovatulus Warncke, 1972, by original designation syn. nov.

Panurgus (Micropanurgus) Patiny, in Ascher and Patiny 2002: 140. Replacement name for Stenostylus Patiny. Type species: Panurgus ovatulus Warncke, 1972, autobasic and by original designation syn. nov.

Diagnosis.

The subgenus can be separated from Panurgus s. str. by the shape of the male S7 which has the lateral corners strongly produced into long, apical projections, these bearing a short tuft of hairs laterally (Figs 19 , 47-48 ). S7 therefore appears to be deeply excavated. Genital capsule with gonostyli slender, the majority of species (7 out of 10) with a clear lamelliform projection that diverges at the midpoint of each gonostylus (Figs 39-42 , 44 ). However, in the former group Micropanurgus (three species), this lamelliform projection is greatly reduced and inconspicuous (Fig. 43 ). Gonocoxae always with strongly projecting points. Female Pachycephalopanurgus specimens cannot be consistently separated from Panurgus s. str.

Included species.

All Panurgus species previously placed in Pachycephalopanurgus and Micropanurgus ( Patiny 1999c; Ascher and Patiny 2002; Patiny 2002); the 10 species are detailed in Table 2 .

Figures

Figures 12 - 19. Panurgine male sternum seven 12 Halopanurgus baldocki 13 Avpanurgus flavofasciatus 14 Camptopoeum (Epimethea) variegatum 15 Flavipanurgus flavus 16 Flavipanurgus kastiliensis 17 Panurgus (Panurgus) calcaratus 18 Panurgus (Panurgus) dentipes 19 Panurgus (Pachycephalopanurgus) farinosus.

Figures 45 - 48. Sternum 7 for members of the former four subgenera of Panurgus 45 Panurgus (Panurgus) cephalotes 46 Panurgus (Euryvalvus) banksianus 47 Panurgus (Pachycephalopanurgus) canescens 48 Panurgus (Micropanurgus) ovatulus.

Figures 39 - 44. Panurgus (Pachycephalopanurgus) male genitalia 39 Panurgus calceatus 40 Panurgus canescens 41 Panurgus convergens 42 Panurgus farinosus 43 Panurgus minor 44 Panurgus rungsii.