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Diamphidia, or Bushman arrow-poison beetle, is an African genus of flea beetles, in the family Chrysomelidae. The larvae and pupae of Diamphidia produce a toxin used by Bushmen as an arrow poison. [1] [2] The Finnish explorer Hendrik Jacob Wikar, who travelled in Southern Africa in 1773–1779, described the larvae as "poisonous worms".
Diamphidia nigroornata or Bushman arrow-poison beetle, is an African leaf beetle species in the genus Diamphidia. The larvae and pupae of Diamphidia produce a toxin used by San people as an arrow poison. [1] [2] The Finnish explorer Hendrik Jacob Wikar, who travelled in Southern Africa in 1773–1779, described the larvae as "poisonous worms".
The probability of a beetle guarding is dependent on both the sex ratio and the size of an individual. A larger beetle is more likely to guard than a smaller beetle because smaller beetles require more energy to maintain guarding and are thus unable to compete with larger beetles, so the smaller beetles get little marginal benefit by guarding.
They grow very quickly and will have moulted twice before the end of autumn. They have a two-year life cycle. They pupate in June or July. Some adult beetles may emerge in autumn, but the main emergence is in spring, when the beetles mate. After mating, the female beetles lay their eggs in decaying organic matter and then die.
The larva is usually the principal feeding stage of the beetle life cycle. Larvae tend to feed voraciously once they emerge from their eggs. Some feed externally on plants, such as those of certain leaf beetles, while others feed within their food sources. Examples of internal feeders are most Buprestidae and longhorn beetles. The larvae of ...
Female M. melolontha Beetle. Adults appear at the end of April or in May and live for about five to seven weeks. After about two weeks, the female begins laying eggs, which she buries about 10 to 20 cm deep in the earth. She may do this several times until she has laid between 60 and 80 eggs. Most typically, the female beetle lays its eggs in ...
Meloe violaceus, the violet oil beetle, is a species of oil beetle belonging to the family Meloidae subfamily Meloinae. These beetles are present in most of Europe , in the eastern Palearctic realm , in the Near East , and in North Africa .
Cotinis nitida, commonly known as the green June beetle, June bug or June beetle, [1] is a beetle of the family Scarabaeidae. It is found in the eastern United States and Canada, where it is most abundant in the South. It is sometimes confused with the related southwestern species figeater beetle Cotinis mutabilis, which is less destructive.