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Similarly, 20 Anthidium maculosum bees were collected from a single post in chamise-dominated habitat; however, given the sparseness of these data, the effect of vegetation type was not significant (permutational ANOVA, P = 0.
However, 54 Anthidium maculosum bees were collected from 11 posts and 104 Osmia lignaria were collected from seven posts.
In an analysis combining observations from all three years, Anthidium maculosum showed a significant preference for oak habitats (permutational ANOVA, P = 0.
In particular megachilid bees showed fairly distinct phenologies consistent with temporal niche separation; Osmia lignaria was collected primarily in the early-season, Anthidium maculosum was most abundant in the mid-season, and Megachile apicalis was a distinctly late-season species (Fig.
In contrast a number of taxa, including Isodontia elegans, Anthidium maculosum, and Megachile apicalis, showed more limited and aggregated spatial distributions.
One, a leaf-cutter bee in the genus Osmia, is in the same family (Megachilidae) as the Anthidium bee and has similar traits.
However, two basal ancestors within the genus Anthidium are assumed to have been oligolectic [ILLUSTRATION FOR FIGURE 3 OMITTED] inferring again a switch from oligolecty to polylecty in the precursors of the clade A.
The clypeus in the females of the following nine Anthidium species is densely covered with peculiar hairs that are thickened at their base and extended into a thin, wavy tail [ILLUSTRATION FOR FIGURES 6A,B OMITTED]: A.
The development of the specialized facial pilosity is thus assumed to have occurred only once in the evolutionary history of these Anthidium bees.
1 mm), however, the three Anthidium species are distinctly larger (average length of forewing: 7.
dalmaticum, two very closely related members of the genus Anthidium, which only slightly differ morphologically, show strikingly different host-plant preferences.
2006), bees of the genera Anthidium, Bombus, Eucera (Fig.
Orchard Year Family Genera "La 2010 Megachilidae Trachusa Concepcion" Megachile Anthidium Halictidae Augochlorella 2011 Megachilidae Trachusa Heriades Megachile Anthidium Osmia Halictidae Augochlorella Halictus Augochlora Crabronidae Crabro Apidae Xylocopa Bombus Vespidae Parancistrocerus Ancistrocerus Vespula Sphecidae Chlorion Sphex Ammophila Bicyrtes Pompilidae Pepsis Dipogon Scoliidae Triscolia "San Martin" 2010 Halictidae Augochlora Lasioglossum Megachilidae Trachusa Anthidium Crabronidae Crabro 2011 Megachilidae Trachusa Heriades Megachile Anthidium Halictidae Augochlora Vespidae Ancistrocerus Vespula Orchard Species Number of Specimens "La sp.
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- anterograde amnesia
- Anthemis arvensis
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- Antheraea polyphemus
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