| Hister javanicus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Histeridae |
| Genus: | Hister |
| Species: | H. javanicus |
| Binomial name | |
| Hister javanicus Paykull, 1811 | |
| Synonyms | |
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Hister javanicus, is a species of clown beetle found in many Oriental countries including, Taiwan, Java, eastern India, Sri Lanka, and introduced to Africa. [1] [2] [3]
The Body length of both sexes is about 4.1 to 6.7 mm. The body is oval, and strongly convex and black in color. Their vertex is feebly depressed in the middle. The Prosternal Lobe is rounded at the apex, with complete marginal stria. The Prosternal keel is even, without carinal stria. [4] First to 4th dorsal elytral striae and pronotal marginal stria both are complete. The beetles Propygidium is feebly depressed on each lateral side, and shiny. Propygidium irregularities cover its body. Pygidium convex medially, deeply and coarsely punctate. The Protibia consists of 2 or 3 denticles on the outer margin. [5] Striation of the Elytrae is highly variable according to the geographical distribution. Anterior margin of the pronotum is deeply bisinuate. [6]
Amphizoa is a genus of aquatic beetles in the suborder Adephaga, placed in its own monogeneric family, Amphizoidae. There are five known species of Amphizoa, three in western North America and two in eastern palearctic. They are sometimes referred to by the common name troutstream beetles.
Histeridae is a family of beetles commonly known as clown beetles or Hister beetles. This very diverse group of beetles contains 3,900 species found worldwide. They can be easily identified by their shortened elytra that leaves two of the seven tergites exposed, and their geniculate (elbowed) antennae with clubbed ends. These predatory feeders are most active at night and will fake death if they feel threatened. This family of beetles will occupy almost any kind of niche throughout the world. Hister beetles have proved useful during forensic investigations to help in time of death estimation. Also, certain species are used in the control of livestock pests that infest dung and to control houseflies. Because they are predacious and will even eat other Hister beetles, they must be isolated when collected.
Copelatus taprobanicus is a species of diving beetle endemic to Sri Lanka. It is part of the genus Copelatus in the subfamily Copelatinae of the family Dytiscidae. It was described by Wewalka & Vazirani in 1985.
Margarinotus brunneus is a species of beetles belonging to the family. They Seem to be a vibrant blue colour, but when their shell is under a Microscope it appears a pastel red colour. This is due to “Delton’s colour theory of aphropods.” Histeridae.
Dipelicus bidens, is a species of dung beetle native to India and Sri Lanka.
Cercyon (Cercyon) nigriceps, is a species of water scavenger beetle with cosmopolitan distribution from Palaearctic, Nearctic, Afrotropical, Oriental and Neotropical regional countries.
Enochrus (Methydrus) esuriens, is a species of water scavenger beetle found in Indochina, Korea, China, Japan, Bhutan, Iran, Iraq, Nepal, India, Pakistan, Philippines, Sri Lanka, Vietnam, Sunda Island, Saudi Arabia and Australia.
Atholus coelestis, is a species of clown beetle found in Indo-Pacific regional countries such as Tajikistan, India, Sri Lanka, Nepal, China, Japan, Taiwan, Indochina, Java, Philippines, Indonesia, Celebes and Comores.
Chaetabraeus (Mazureus) paria, is a species of clown beetle found in Pakistan, East India, Sri Lanka, Thailand, Taiwan and Sumatra.
Hololepta elongata, is a species of clown beetle found in many Oriental countries including, India, Sri Lanka, Indonesia, New Guinea and Philippines.
Platylomalus oceanitis, is a species of clown beetle found in many Oriental countries including India, Sri Lanka, Indonesia, Philippines and Australia.
Tribalus (Eutribalus) colombius, is a species of clown beetle found in many Oriental countries including India, Sri Lanka, Myanmar, Taiwan, Vietnam, Philippines and Australia.
Trypeticus (Trypeticus) bombacis, is a species of clown beetle found in many Oriental countries including India.
Trypeticus is a genus of beetles belonging to the family Histeridae.
Bolboceras insulare, is a species of dor beetle found in India, and Sri Lanka.
Ilamelmis starmuhlneri, is a species of riffle beetle found in Sri Lanka.
Cryphalogenes euphorbiae, is a species of weevil found in Sri Lanka.
Horniolus dispar, is a species of lady beetle found in Sri Lanka.
Jauravia pallidula, is a species of lady beetle native to India, and Sri Lanka.
Novius octoguttata is a species of lady beetle native to India, Sri Lanka, Pakistan, Myanmar and China.