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Goliath beetles are among the largest insects on Earth, if measured in terms of size, bulk and weight. [1] [2] They are members of subfamily Cetoniinae, within the family Scarabaeidae. [1] Goliath beetles can be found in many of Africa's tropical forests, [1] where they feed primarily on tree sap and fruit.
Goliathus goliatus is one of the largest species in the genus Goliathus, males having a body length of 50–110 millimetres (2.0–4.3 in) and females having a body length of 54–80 millimetres (2.1–3.1 in).
Goliathus albosignatus is a species of beetle of the family Scarabaeidae, described by Carl Henrik Boheman in 1857. It is one of several species of Goliath beetles that inhabit Africa, but it is the only one exclusively found in subtropical sections of the continent. [1]
The highest confirmed weight of an adult insect is 71 g (2.5 oz) for a gravid female giant weta, Deinacrida heteracantha, [2] although it is likely one of the elephant beetles, Megasoma elephas and Megasoma actaeon, or goliath beetles, both of which can commonly exceed 50 g (1.8 oz) and 10 cm (3.9 in), can reach a greater weight. [2]
The head bears a black Y-shaped horn in males, used in battles with other males. Legs are long, powerful, black. Despite its large body, these beetles fly well. They have a large and membranous secondary pair of wings. When not in use, these wings are kept completely folded beneath the elytra. These beetles feed primarily on tree sap and fruits ...
The heaviest beetle, indeed the heaviest insect stage, is the larva of the goliath beetle, Goliathus goliatus, which can attain a mass of at least 115 g (4.1 oz) and a length of 11.5 cm (4.5 in). Adult male goliath beetles are the heaviest beetle in its adult stage, weighing 70–100 g (2.5–3.5 oz) and measuring up to 11 cm (4.3 in). [23]
Goliathus regius is very similar to Goliathus goliatus in both structure and colour characters. [4] It is one of the largest species of the genus Goliathus, with a body length of 50–115 millimetres (2.0–4.5 in) in males and of 56–82 millimetres (2.2–3.2 in) in females.
Amphibians and reptiles are also found in Kakamega Forest. Insects are abundant and some are quite spectacular, such as Goliath beetles, pink and green flower mantis, and numerous colorful butterflies (489 species). Particularly well represented groups are ants (Formicidae), Lepidopterans, Orthopterans, and beetles.