Bald-faced hornet to laying eggs while the workers take over all other necessary housekeeping tasks. At some point, sometime before the midpoint of colony life, the colony will begin to invest energy in producing reproductives as well. This marks the transition into the reproductive stage. There is an extensive time period where both workers and reproductives are raised. Production of both castes limits the size of the work force. However, an early switching time is highly adaptive for social wasp colonies in limiting the risk of total loss. In a sampling of 50 colonies taken in Maryland in 1977, workers were produced
Bald-faced hornet C29 backbone. The major lipids and their distributions in workers were as follows: n-heptacosane(28%), 11-13-methylheptacosane (15%) 3,13-dimethylheptacosane (11%) and 13 and 15-methylnonacosane (10%). Nonacosene comprised 34% of cuticular lipids in the queen. The average chain length of identified cuticular lipids is 28.0 in queens and 27.5 in workers. In "D. maculata", queens mate with only one male which results in a worker relatedness of 0.75, whereas the relatedness between the queen and worker is only 0.5. Gynes in "D. maculata" have the ability to discriminate between fragments of natal comb and foreign comb. Recognition does not depend upon presence of