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Serrognathus
''Serrognathus'' is a genus of beetles in the stag beetle family (biology), family Lucanidae. Species of the genus are found in the Indo-Australian region. Taxonomy In 2011, the genus ''Serrognathus'' was reclassified and merged into the genus ''Dorcus''. Previously, specimens with serriform teeth on the mandibles and sable pigment were separated from specimens with a singular or multiple bulky notches on the mandibles and lustrous sable pigmentation which were placed in the genus ''Dorcus''. Latterly, the genus has been resurrected and is once again accepted as valid. Species The following species are recognised in the genus ''Serrognathus'': *''Serrognathus alcides'' *''Serrognathus bucephalus'' *''Serrognathus cofaisi'' *''Serrognathus consentaneus'' *''Serrognathus costatus'' *''Serrognathus damoiseaui'' *''Serrognathus eurycephalus'' *''Serrognathus kyanrauensis'' *''Serrognathus miwai'' (Benesh, 1936) *''Serrognathus platymelus'' (Saunders, 1854) *''Serrognathus re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serrognathus Titanus
''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. Description Males measure including mandibles; females . It has an elongated, somewhat flat body dull black with blackish antennae and legs. Male's antler-like jaws have small teeth along inner edge and a pair of big teeth toward the bottom, and are forked at end. The head of a large male reaches nearly the length of its prothorax and abdomen combined. Life cycle Adults can be seen from May to August. They feed on tree juice, especially of ''Quercus'' species. Females lay eggs on the underground part of fallen oaks. The eggs hatch in about a month and the larvae feed on rotten wood. The larval period lasts about one year. The complete life cycle can last approximately from 1 to 2 years. Distribution This species is widely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
