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T-Space at The University of Toronto Libraries >
P. E. Hallett (2011) Farmed Solitary Bees & Wasps, Data Set (generations 1997-2008) >
06B Photo diaries >
06B.07 Monastery 2005 >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/31038


Title: If these nests develop overwintering dark adults (orange coated males in anterior cells) the diagnosis is Osmia coerulescens, if not it is Megachile pugnata (there are suggestions of bilaminate cross walls here; the female should have spinous cheeks).
Authors: Hallett, Peter
Keywords: Osmia
coerulescens
lignaria
Megachile
pugnata
mites
Chaetodactylus
Issue Date: 6-Jul-2005
Abstract: It is often safe to tear open a cocoon with sharp forceps, pull out an overwintering adult, and press it back again with the finger tip after inspection. However, if Osmia lignaria is in the same nest block its pollen may be teeming with aggressive mites (Chaetodactylus). Most O. lignaria immatures survive the mites but other bees do not, especially if the cells have been opened.
URI: http://hdl.handle.net/1807/31038
Appears in Collections:06B.07 Monastery 2005

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