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Serrognathus titanus is a species of beetle in the family Lucanidae. It was described by Jean Baptiste Boisduval in 1835. Huang and Chen (2013) separated Serognathus from the genus Dorcus by representing morphological characters and DNA analysis.
Others, such as the Japanese beetle, are plant-eaters, wreaking havoc on various crops and vegetation. Some of the well-known beetles from the Scarabaeidae are Japanese beetles, dung beetles, June beetles, rose chafers (Australian, European, and North American), rhinoceros beetles, Hercules beetles and Goliath beetles.
The mating season for Cylindera kaleea angulimaculata is from May to August. When mating, the male will use his mandibles to bite the edge of the female's pronotum and remain there in order to prevent other males from mating. Females lay eggs individually in holes dug in the soil. Larvae will over-winter and eventually pupate in these holes.
Hexarthrius is a genus of large stag beetles. They are also known as fork horned stag beetles for the shape for their mandibles [2] It includes the following species: [3] Hexarthrius aduncus Jordan & Rothschild, 1894 ; Hexarthrius andreasi Schenk, 2003; Hexarthrius bowringii Parry, 1862; Hexarthrius buquettii (Hope, 1843) Hexarthrius davisoni ...
Female beetles typically arrive first at a decaying coconut trunk for breeding and start preparing the trunk for egg laying by breaking up the wood into small particles, suitable for consumption by the freshly hatched first instar larvae. A male beetle often follows the female for mating and to help the female with preparation of the breeding site.
In order for a site to be considered a “breeding site,” the beach must have a width of at least 6.5 feet (2.0 m) (16–26 feet or 4.9–7.9 metres wide is preferred), length of at least 325 feet (99 m), and a population of at least 30 adults. On beaches with these conditions, it can be assumed there are larvae present.
To get the two male beetles to lock in combat, a female beetle is used, or a small noisemaker duplicating the female's mating call. Entomologist Séverin Tchibozo suggests the larvae contain much more protein (40%) than chicken (20%) and beef (approximately 18%), and they could become a protein source for a large human population .
A relatively large lucanid beetle of the genus Lucanus, the male has long, curved upper jaws, resembling a sickle. The larvae are found in the trunks of old trees, feeding on the inner wood. It is dark reddish brown with smooth, shiny elytra (“wing cases”); the femora are orange brown. Males have much larger jaws than females.