Journal of Apicultural Science

Individual development of the red mason bee (Osmia rufa L., Megachilidae) under natural and laboratory conditions

Journal of Apicultural Science. Volume 46, Issue 1, Pages 51-57, ISSN (Print) 1643-4439
The objective of the study was to determine the duration of successive stages of the individual development of the solitary bee the red mason bee (Osmia rufa L.) under natural and laboratory conditions and to examine the possibilities to shorten the development of that bee.
The average duration under natural conditions of the egg stage was 7.6 days, of the feeding male larvae - 31.6 days, of the feeding female larva - 35.5 days. Under laboratory conditions at 28°C and at 70% relative humidity the respective durations of those stages were 3.1 days, 15.3 days and 17 days. The spinning larva stage was 3.7 days for males and 3.6 days for females under natural conditions and 2.9 days for males and 2.7 days for females under laboratory conditions. The successive instars of pre-pupa and pupa lasted jointly 52.6 days for males and 54.2 days for females under natural conditions. Under laboratory conditions the respective instars were shorter: 46.4 days and 47.2 days.
Under laboratory conditions the shortening of the development stages of the red mason bee resulted in the complete development time being shorter: in males by 28 and in females by 30 days as compared to the average development under natural conditions.
Osmia rufa L, development
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