Anthidium (Gulanthidium)


Family: Megachilidae
Subfamily: Megachilinae
Tribe: Anthidiini
Genus: Anthidium Fabricius, 1804
Subgenus: Gulanthidium Pasteels, 1969
Common name: none


Anthidium (Gulanthidium) are robust, elongate bees which may have black and yellow markings or be predominantly yellow (Michener 2007). They range in body length from 8.5–12 mm.

Diagnostic characteristics

(modified from Michener 2007)

May be confused with

Anthidium (Gulanthidium) may be confused with bees within the subgenus A. (Severanthidium) due to the carinate omaulus, scutellum, hind tibia, and hind basitarsus (Michener 2007). However, A. (Gulanthidium) can be differentiated from A. (Severanthidium) by the shape of the posterior margin of the scutellum. Further, the eyes of A. (Severanthidium) converge strongly below, which differs from A. (Gulanthidium), whose eyes only slightly converge below (Michener 2007).

Host associations

Anthidium anguliventre are specialists on Cardueae (Müller 1996); however, they have also been observed visiting Centaurea sp. (Asteraceae) and Vitex agnus-castus (Lamiaceae) (Falamarzi et al. 2017). Floral associations for A. eremicum and A. rotundum are not known.

Nesting behavior

Nesting behavior is unknown.


Anthidium (Gulanthidium) consists of three species: A. anguliventre, A. eremicum, and A. rotundum (Michener 2007; Discover Life 2018). None are known to occur in the U.S. or Canada.

Known invasives

There are no known invasives.


Anthidium (Gulanthidium) occur from Israel to Turkey, Iran, Oman, and Pakistan (Michener 2007).

​Distribution map generated by Discover Life -- click on map for details, credits, and terms of use.

<p>Fig 1, <em>Anthidium (Gulanthidium)</em> sp. female face, photo: Chelsey Ritner</p>
Fig 1, Anthidium (Gulanthidium) sp. female face, photo: Chelsey Ritner
<p>Fig 2, <em>Anthidium (Gulanthidium)</em> sp. female lateral habitus, photo: Chelsey Ritner</p>
Fig 2, Anthidium (Gulanthidium) sp. female lateral habitus, photo: Chelsey Ritner
<p>Fig 3, <em>Anthidium (Gulanthidium)</em> sp. female abdomen, photo: Chelsey Ritner</p>
Fig 3, Anthidium (Gulanthidium) sp. female abdomen, photo: Chelsey Ritner