Pseudoanthidium (Pseudoanthidium) circinatum (Wu, 2004)

Niu, Ze-Qing, Luo, A-Rong, Griswold, Terry & Zhu, Chao-Dong, 2021, Review of the bee genus Pseudoanthidium Friese, 1898 (Hymenoptera: Apoidea Megachilidae: Anthidiini) of China with descriptions of three new species, Zootaxa 4996 (1), pp. 133-152 : 135

Pseudoanthidium (Pseudoanthidium) circinatum (Wu, 2004)

( Figs 2a–h )

Bathanthidium (s. str.) circinatum Wu, 2004a: 541 . Holotype: ♀, China, Xinjiang, Yanqi, 6–7.VII.1958, leg. Chang-Qin LI, IZCAS, examined; Wu, 2006: 130, ♀, Fig. 63.

Bathanthidium (Stenanthidiellum) circinatum Wu : Niu et al., 2012: 60 (list), 61, ♀, (key), 64, figs. 13–20.

Pseudoanthidium (Pseudoanthidium) circinatum (Wu, 2004) : Niu et al., 2019: 115 .

Diagnosis: The species in only known in the female. Body length 7.0 mm ( Fig. 2a ); clypeus yellow except for an oval black marking at center ( Fig. 2b ); paraocular area yellow to level of antennal sockets ( Fig. 2b ), vertex with pair of lateral yellow stripes ( Fig. 2c ); pronotal lobe ( Fig. 2c ), scutum anterolaterally, axillae, and scutellum posteriorly yellow ( Fig. 2d ); the propodeum without a fovea behind the spiracle ( Fig. 2f ).

Material examined: Xinjiang, Yanqi (41º00′N, 86º30′E), 1 ♀, 6–7.VIII.1958, leg. Chang-Qing LI (holo- type) .

Distribution: China (Xinjiang).

Figures

FIGURE 2. Pseudoanthidium (Pseudoanthidium) circinatum (Wu, 2004), female, holotype. a: Body in lateral view; b: Head in frontal view; c: Head in lateral view; d: Mesosoma in dorsal view; e: Metasoma in dorsal view; f: Propodeum in dorsolateral view, showing the propodeal spiracle; g: Mandible in lateral view; h: Claw in frontal view. Scale bar: a, b, c, d, e, f, 1 mm; g, h, 0.5 mm.