Serrognathus titanus

Last updated

Serrognathus titanus
Dorcus titanus titanus Boisduval, 1835 male (3990618600).jpg
From Sumatra, Indonesia
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Lucanidae
Genus: Serrognathus
Species:
S. titanus
Binomial name
Serrognathus titanus
(Boisduval, 1835)
Synonyms [1]
  • Dorcus titanus(Boisduval, 1835)
  • Lucanus titanusBoisduval, 1835
  • Lucanus titanus briareusHope & Westwood, 1845

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.

Contents

Description

Males measure 32.0–111.3 millimetres (1.26–4.38 in) including mandibles; females 36.5–54 millimetres (1.44–2.13 in). 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. [2]

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. [2]

Distribution

This species is widely distributed in Indonesia, the Philippines, Malaysia, Thailand, Vietnam, Laos, Myanmar, India, Japan, China, Taiwan and Korea. [1] [3]

Habitat

It mainly inhabits tropical rainforests and temperate forests from lowland to mountains. [2]

Human uses

This beetle has some commercial value and export from some regions is criminalized. There are some Asian cultures that assign aphrodisiac properties to this insect.[ citation needed ] However, most are imported for sport, decorative show, or to be kept as an exotic pet. This stag beetle is also popular pet in Asia and Europe.

Subspecies

Hiroshi Fujita, a Japanese collector from the Mushi-sha insect shop, described over 20 new subspecies of S. titanus in his book "The Lucanid Beetles of the World". His subspecies included 11 subspecies in Japan alone. He also further divided S. titanus titanus specimens found in the Malay Archipelago into S. titanus yasuokai, S. titanus typhon, S. titanus nobuyukii and others.

Currently 24 named subspecies are extant with a further 15 undescribed subspecies identified by DNA analysis: [4]

S. titanus platymelus Dorcus titanus platymelus sjh.jpg
S. titanus platymelus

Related Research Articles

<i>Harmonia</i> (beetle) Genus of beetles

Harmonia is a genus of lady beetles belonging to the subfamily Coccinellinae.

<i>Gasteracantha</i> Genus of spiders

Gasteracantha is a genus of orb-weaver spiders first named by Carl Jakob Sundevall in 1833. Species of the genus are known as spiny-backed orb-weavers, spiny orb-weavers, or spiny spiders. The females of most species are brightly colored with six prominent spines on their broad, hardened, shell-like abdomens. The name Gasteracantha is derived from the Greek gaster (γαστήρ), meaning "belly, abdomen", and akantha (άκανθα), meaning "thorn, spine". Spiny-backed orb-weavers are sometimes colloquially called "crab spiders" because of their shape, but they are not closely related to the true crab spiders. Other colloquial names for certain species include thorn spider, star spider, kite spider, or jewel spider.

<i>Prosopocoilus giraffa</i> Species of beetle

Prosopocoilus giraffa, the giraffe stag beetle, is the world's largest stag beetle and is a member of the family Lucanidae within the order Coleoptera. They have very long, toothed and notched mandibles that protrude about half the size of their body. They tend to be aggressive and are fierce and powerful. Males fight each other using these strong and enlarged jaws to lift and throw rivals to win a mate. They can grow up to 119 millimetres in length. Several distinctive populations (subspecies) are found in moist forested region areas of Asia, ranging from India to Indonesia. Prosopocoilus giraffa keisukei can measure up to 12 centimeters. Prosopocoilus giraffa daisukei have the brightest elytra of all subspecies and Prosopocoilus giraffa giraffa is the smallest subspecies.

<span class="mw-page-title-main">Insect fighting</span>

Insect fighting is a range of competitive sporting activity, commonly associated with gambling, in which insects are pitted against each other.

<span class="mw-page-title-main">Russet sparrow</span> Small passerine bird found in Asia

The russet sparrow, also called the cinnamon or cinnamon tree sparrow, is a passerine bird of the sparrow family Passeridae. A chunky little seed-eating bird with a thick bill, it has a body length of 14 to 15 cm (5.5–5.9 in). Its plumage is mainly warm rufous above and grey below. It exhibits sexual dimorphism, with the plumage of both sexes patterned similarly to that of the corresponding sex of house sparrow. Its vocalisations are sweet and musical chirps, which when strung together form a song.

<i>Dorcus</i> Genus of beetles

Dorcus is a genus of beetles in the stag beetle family Lucanidae. Of the over 100 species, most occur in Asia and India; two are found in southern Europe, and two species are from North America. Previously, specimens with serriform teeth on the mandibles and sable pigment were called Serrognathus whereas specimens with but a singular or multiple bulky notches on the mandibles and lustrous sable pigmentation were called Dorcus.

<i>Lucanus cervus</i> Species of beetle

Lucanus cervus, known as the European stag beetle, or the greater stag beetle, is one of the best-known species of stag beetle in Western Europe, and is the eponymous example of the genus. L. cervus is listed as Near Threatened by the IUCN Red List.

<i>Theretra silhetensis</i> Species of moth

Theretra silhetensis, the brown-banded hunter hawkmoth, is a moth of the family Sphingidae described by Francis Walker in 1856. It lives in Indo-Australia, India, Sri Lanka, Papua New Guinea, East Australia, Solomon Islands, Fiji Islands, Vanuatu Islands.

<i>Odontolabis cuvera</i> Species of beetle

Odontolabis cuvera, the golden stag beetle, is a beetle of the family Lucanidae, stag beetles.

<span class="mw-page-title-main">Ryukyu flying fox</span> Species of bat

The Ryukyu flying fox or Ryukyu fruit bat is a species of megabat in the family Pteropodidae. It is found in Japan, Taiwan, and the Batanes and Babuyan Islands of the Philippines. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical swamps. It is threatened by habitat loss and by hunting for food and the IUCN classify it as "Vulnerable".

<i>Lethocerus deyrollei</i> Species of true bug

Lethocerus deyrollei is a species of giant water bug that traditionally is included in the genus Lethocerus, although recent authorities place it in the monotypic Kirkaldyia. They are large, predatory and nocturnal insects. They are one of the best known giant water bugs and are found in Japan, Korea, east China, east Indochina and the Amur region of Russia. They are very common in much of their range, but have declined drastically in some regions and are considered threatened in Japan and Korea. They live in still waters with vegetation, hatching in the summer months and then overwintering half a year later as adults. They primarily feed on small fish, amphibians and aquatic insects, but have also been recorded taking water snakes and young turtles.

The Lucanidae are a family of beetles that include the stag beetles. The family can be further subdivided in a taxonomy. The classification presented here follows Smith (2006), with the exception of the tribal classification within the Lucaninae.

<i>Batocera</i> Genus of beetles

Batocera is a genus of the family Cerambycidae, subfamily Lamiinae, close to the genus Rosenbergia.

<i>Serrognathus</i> Genus of beetles

Serrognathus is a genus of beetles in the stag beetle family Lucanidae. Species of the genus are found in the Indo-Australian region.

<i>Cyclommatus</i> Genus of beetles

Cyclommatus is a genus of the family Lucanidae, also known as the stag beetle. The majority of the species from the genus Cyclommatus are located in Southeast Asia, though some species are found in China and Taiwan as well. The genus Cyclommatus also consists of three subgenera: Cyclommatus, Cyclommatinus and Cyclommatellus. Each subgenera contains 80, 24 and 3 species respectively. In total, the genus Cyclommatus consists of a total of 134 species, though more are still being discovered to this day.

<i>Odontolabis</i> Genus of beetles

Odontolabis is a genus of beetles belonging to the family Lucanidae.

<i>Tenodera aridifolia</i> Species of praying mantis

Tenodera aridifolia, the Japanese giant mantis, is a species of mantis in the subfamily Mantinae. The Chinese mantis, T. sinensis, was once considered to be a subspecies of T. aridifolia, but the species can be distinguished by the shape of male genitalia.

<i>Pristionchus</i> Genus of roundworms

Pristionchus is a genus of nematodes (roundworms) in the family Diplogastridae that currently includes more than 50 described species. They are known mainly as non-parasitic associates of insects, especially beetles, while others have been reported from soil, organic matter, or rotting wood. The genus includes P. pacificus, a satellite model organism to the well-studied nematode Caenorhabditis elegans.

<i>Aegus</i> (beetle) Genus of beetles

Aegus is a genus of stag beetles in the family Lucanidae. Comprising about 260 species in the genus, they are placed in the largest subfamily Lucaninae. They are distributed in South Asia, Southeast Asia and the Pacific countries, but introduced accidentally to many parts of the islands.

References

  1. 1 2 "BioLib.cz". Archived from the original on 2017-02-28. Retrieved 2018-03-21.
  2. 1 2 3 "The Breeding/Rearing of Dorcus titanus palawanicus by Kay - Ben's Beetle Breeding Pages". Archived from the original on 2021-04-11. Retrieved 2021-07-16.
  3. "Serrognathus titanus titanus - Coleoptera-Atlas.com". www.coleoptera-atlas.com. Archived from the original on 2015-09-23. Retrieved 2021-07-16.
  4. "Serrognathus titanus (Boisduval, 1835)". www.gbif.org. Retrieved 2024-05-20.