Anthidium cockerelli Schwarz, 1928
Biology:
In the low deserts this species flies from late March to early May (Hurd & Linsley, 1975) and from May to early June in the Colorado Plateau.
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Anthidium cockerelli Schwarz, 1928
Anthidium cockerelli Schwarz, 1928
Biology:Asteraceae: Ambrosia dumosa; Baileya multiradiata, B. multiradiata var. pleniradiata; Bebbia juncea; Chaenactis carphoclinia, C. fremontii, C. stevioides; Cirsium sp.; Coreopsis sp.; Encelia farinosa, E. virginensis; Enceliopsis sp.; Geraea canescens; Malacothrix sp.; Palafoxia linearis; Pluchea sericea; Stephanomeria tenuifolia. Boraginaceae: Phacelia crenulata, P. distans, P. integrifolia, P. rafaelensis. Brassicaceae: Stanleya pinnata. Cactaceae: Opuntia sp. Fabaceae: Astragalus sp.; Cercidium floridum; Dalea californica, D. emoryi, D. formosa; Lotus haydonii; Lupinus agardhianus, L. argenteus var. argentatus, L. sparsiflorus; Melilotus sp.; Prosopis juliflora; Psoralea sp.; Psorothamnus arborescens, P. fremontii, P. polydenius, P. schottii, P. spinosus, P. thompsoniae; Trifolium sp. Grossulariaceae: Ribes aureum. Krameriaceae: Krameria sp. Lamiaceae: Poliomintha incana; Salazaria mexicana; Salvia dorrii. Loasaceae: Mentzelia tricuspis. Malvaceae: Sphaeralcea sp. Nyctaginaceae: Abronia villosa. Onagraceae: Oenothera clavaeformis var. aurantiaca. Papaveraceae: Arctomecon californica; Eschscholzia sp. Plantaginaceae: Penstemon palmeri. Polygonaceae: Eriogonum fasciculatum, E. inflatum. Ranunculaceae: Delphinium sp. Tamaricaceae: Tamarix sp. Zygophyllaceae: Larrea divaricata, L. tridentata.
Diagnostic description:The female can be recognized by the following combination of characters: tibial carina absent; outer surface of basitarsi densely covered with white tomentum (integument not visible among hairs); sternal scopa whitish, at least laterally; terga finely and sparsely punctate; T6 without distinct lateral spine, with depressed apical rim visible along three-fourths of pointed distal margin. The male can be recognized by the lateral lobe of T7 with narrowly rounded apex; S6 without lateral lobe, with small, weakly sclerotized median lobe, sometimes apically notched; S8 with pointed apical process.
Distribution:This is a desert species found in the hot deserts (Mojave, Sonoran and Chihuahuan Deserts) of the southwestern USA and northern Mexico and the Colorado Plateau of northern Arizona and Utah.