Genus: Anthidium Fabricius, 1804
Subgenus: A. (Anthidium) Fabricius, 1804
Species: Anthidium platyfrons Gonzalez and Griswold, 1879
Common name: none
Anthidium (Anthidium) platyfrons are dark brown to black, with ferruginous coloration on the inner fore and middle femora and tarsi, and yellow maculations (Gonzalez and Griswold 2013). Females have white pubescence except for some yellow hairs on the vertex, scutum, axilla, scutellum, inner tarsi, and abdomen. The clypeus, supraclypeal area, and frons are covered in apically hooked or wavy hairs. Females have a body length of 6.3 mm, and males have a body length of 8.8 mm (Gonzalez and Griswold 2013).
(modified from Gonzalez and Griswold 2013)
Female Anthidium platyfrons may be confused with A. tenuiflorae due to the absence of anterior hind tibial carina and white sternal scopa (Gonzalez and Griswold 2013). Males are also similar in the rounded lateral lobe of T7, dense median apical brush of long hairs on S4, and distinct lateral and median lobes on S6. Female A. platyfrons can be differentiated from A. tenuiflorae by their small body size and clypeus with apically wavy hairs (Gonzalez and Griswold 2013). Male A. platyfrons can be differentiated from A. tenuiflorae by the straight lateral lobe on S6 and short, broad apical process on S8 (Gonzalez and Griswold 2013).
Anthidium platyfrons adults have been recorded in flight from May to early June (Gonzalez and Griswold 2013).
Floral associations are unknown.
Nesting behavior is unknown.
Anthidium platyfrons occur in two areas southwest of Phoenix, Arizona (Gonzalez and Griswold 2013). They are found primarily in areas undergoing agricultural cultivation. They are rare in their endemic location in the Sonoran Desert (Gonzalez and Griswold 2013).