Anthidium, Fabricius, 1804

Kasparek, Max, 2021, Revision and description of three new species of the Palaearctic subgenus Gulanthidium of the wool carder bee genus Anthidium (Apoidea: Megachilidae: Anthidiini), Zootaxa 5040 (4), pp. 482-506 : 483

Anthidium , Subgenus Gulanthidium

Pasteels (1969a) in his description of the subgenus Gulanthidium mentioned the following characters: Preoccipital margin distinctly keeled in its horizontal part in the male (but not in the female). Pronotal lobes extended by broad lamellae (equal to the width of the transparent margin of the tegulae). Scutellum slightly indented in the middle, clearly keeled on the sides. Female mandibles with 5 teeth of equal size and T3–T5 with obtuse lateral projections. Male mandibles with 3 acute teeth, the lower one longer. T3–T6 with lateral hooks. T7 either rounded-subtruncate or with a small median incision. S6 rounded posteriorly, with a smooth, impunctate area in the middle.

In an attempt to refine Pasteel’s (1969a) definition, the genus is understood here as a group of species with the following characters: clypeus flat or only very shallowly convex, scutum with a yellow band or stripe next to the middle, resulting together with an anterolateral yellow band in a reverse U-shaped pattern, T3–T6 laterally bulged or toothed in the male (mostly also in the female), T7 of the male semicircular or semicircular with a small truncation or emargination at apex and T6 of the female depressed with two dark spots.