Checkered beetles are infrequently encountered in large numbers, perhaps a manifestation of their biologic ties with floral periodicity, prey population density, or climatic factors. What is published about Cleridae biology deals mostly with adult emergence from woody plants and predatory activity of immatures on lignicolous insects. Very little is known about plant foraging behavior of these beetles. They are known to visit flowers to aggregate for mating, secure pollen, or to feed on entomophagous insects. Field and laboratory observations that involve the speciose Australian genus Eleale indicate that E. aspera (Newman) visits flowers to mate, to fortuitously gather pollen for food, and to utilize the flower of Pyracantha crenulata (Roxb. Roemer) as a “watering hole.” Eleale aspera beetles and relatives immerse their forebodies deeply into the corolla of the flower to reach nectaries which provide essential moisture when water is at a premium during the Australian dry season.
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1 June 2002
Flower Foraging Behavior of the Australian Species Eleale aspera (Newman) (Coleoptera: Cleridae: Clerinae)
Weston Opitz
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