Abstract
SummaryA total of 9268 measurements were made on abdominal segments 4 and 5 of 271 diploid and 264 haploid drones. 109 queens and 236 workers, originating from 12 queens of Apis mellifera adansonii, Apis mellifera ligustica and some crosses. Also 518 diploid and haploid drones were weighed individually.Abdominal segments of diploid drones were larger than those of haploids. Out of 12 characters studied, 4 were smaller in the females, and as many as 8 were larger in at least one female caste, than those in the haploid drones. Therefore the size of certain abdominal parts of diploid drones showed different relations from those of haploids and females. Four segment sizes showed super-male character and out of 8 others, 4 showed caste character, 2 intersex, 1 female and 1 super-female character.The pure race diploid drones were about 25% heavier than the haploids, showing a super-male character.
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