littoralis were as aggressive as other oligolectic bees (e.g., Ptilothrix fructifera Holmberg [Hymenoptera: Apidae]; Oliveira & Schlindwein 2010) and megachilid
bee species (Seidelmann 1999).
However, among the megachilid
bees, Osmia lignaria was a notably early-season species, Anthidium maculosum was most abundant in the mid-season, and Megachile apicalis was a distinctly late-season species (Fig.
These bands can be used to distinguish it from all native Australian megachilid
Additional frequent visitors to blowout penstemon flowers, thought to be the common pollinators of Penstemon, include four species of megachilid
bees (Hoplitis pilosifrons Cresson, Osmia cyaneonitens Cockerell, O.
Foraging trip duration and density of megachilid
bees, eumenid wasps and pompilid wasps in tropical agroforestry systems.
This prey amounted to 22.9% of the prey as a whole and included a moth, a megachilid
bee, bombyliid flies and most caterpillars.
Other visitors contributing significant visitation were nymphalid, papilionid, and pierid butterflies, anthophorine and megachilid
solitary bees, pepsid spider wasps and two species of sunbirds (Nectarinia hunteri and N.
and anthophorid bees occurring in mediterranean Europe and in North, Central, and South America are likewise equipped with a similar structure for pollen uptake, as well as two European representatives of the honey wasps (Vespoidea, Masaridae), another group of pollen-collecting hymenopterans (Schremmer 1959, Muller, in press a).
Gregarious nesting of the mason bee Hoplitis anthocopoides and the evolution of parasitism and sociality among megachilid