Tachyancistrocerus Giordani Soika, 1952

Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), Zootaxa 5105 (3), pp. 401-420 : 416-417

Genus Tachyancistrocerus Giordani Soika, 1952

Tachyancistrocerus Giordani Soika, 1952: 37 , replacement name for Subancistrocerus sensu Blüthgen, 1938b .

Type species Odynerus rhodensis de Saussure, 1855 , by original designation.

Subancistrocerus Blüthgen, 1938b: 441 , 460. Non Subancistrocerus de Saussure, 1855 .

Diagnosis. Apical margin of clypeus narrow and almost truncate or at most shallowly emarginated; pretegular keel present and developed on the pronotum; tegula impunctate ( Fig. 86 ), posteriorly not reaching posterior margin of parategula; male A13 hooked, not rolled; metanotum depressed medially ( Fig. 87 ); T1 ( Fig. 88 ) basally with transverse carina lying below horizontal surface of this tergum, an obliquely sloping surface behind the transverse carina and occupied only by a few coarse punctures; punctures on visible part of T3 much coarser than those at the base of T2 ( Fig. 89 ).

Distribution. Palaearctic and Ethiopian.

Figures

FIGURES 81–89. Tachyancistrocerus schmidti, 81, 83, 85–89, ♀; 82, 84, ♂. 81–82. Habitus, dorsal view; 83–84. Head, frontal view; 85. Vertex and pronotum, lateral view; 86. Tegula; 87. Propodeum, dorsal view; 88. T1, dorsal view; 89. T2–T6, ventral view.