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Sunday, October 14, 2012

Beetles

Order Coleoptera

Beetles are the most diverse order of insects. They are characterized by the hard forewings. Fireflies, weevils are all beetles1,2,3,4.


Central Catchment. Chestnut Area ©Eddy Lee


Upper Peirce ©Eddy Lee

Rove Beetles, Scarabs, Fireflies, Longhorn, Leaf and Snout Beetles (Suborder Polyphaga)


Scarabs, Stag Beetles, etc (Infraorder Scarabaeoidea)



Mandai. Rifle Range ©Eddy Lee


East Coast ©Sylvia Chua

Rhino Beetles (Subfamily Dynastinae) are among the largest of the beetles and belong to the scarab beetle family (Family Scarabaeidae). They are so called due to the horns on the males. Females do not have the horns.


Seletar West ©Lau JS

Fireflies, Fan-horned Beetles, etc (Infraorder Elateriformia)


Fireflies (Family Lampyridae) are beetles in which the abdomen can give off light. Fan-horned Beetle (Family Rhipiceridae) has unusual fan-shaped feeler.


Fan-horned Beetle at Rifle Range and Dairy Farm ©Eddy Lee


Firefly at Chestnut Trail ©Eddy Lee

Longhorn, Leaf and Snout Beetles (Infraorder Cucujiformia)


There are 6 superfamilies in this infraorder. Superfamily Chrysomeloidea contains the leaf and long-horned beetles.

Leaf Beetles (Family Chrysomelidae) are the most commonly encountered beetles.


Choa Chu Kang. NTU ©Eddy Lee


©Eddy Lee


Chestnut Area ©Eddy Lee


Left: Altica cyanea. Right: Lema diversa at Chestnut Area ©Eddy Lee


Left: Colasposoma auripenne. Right: Trichochrysea hirta. Chestnut Area ©Eddy Lee

Tortoise Beetles (Subfamily Hispinae) look like ladybirds, but are grouped with the Leaf Beetles (Family Chrysomelidae). They are so called because of the outer shell that covers the whole body.


Aspidomorpha miliaris at Chestnut Area ©Eddy Lee


Left: Chiridopsis scalaris at Chestnut Area. Right: A Tortoise Beetle larva ©Eddy Lee


Laccoptera nepalensis at Chestnut Area ©Eddy Lee


Unid. Cassida circumdata ©Eddy Lee

Long-horned Beetles (Family Cerambycidae) are so called because of the long antennae, which can be longer than the body length. 234 species have been recorded in Singapore[5].


Rifle Range ©Eddy Lee


Phoenix Walk ©Eddy Lee


Epepeotes luscus at Rifle Range ©Eddy Lee

The Superfamily Cucujoidea contains the ladybirds and fungus beetles.


Fungus Beetle (Family Endomychidae): Rifle Range. Chestnut Area ©Eddy Lee


Eumorphus marginatus (Family Endomychidae) at Upper Peirce ©Eddy Lee


Micrencaustes lunulata (Family Erotylidae), Languria mozardi (Family Languriidae) at Rifle Range ©Eddy Lee

Ladybirds (Family Coccinellidae) are easily recognisable from the dome-shaped body.


Chestnut Trail ©Eddy Lee


Illeis koebelei at Phoenix Walk ©Eddy Lee


Adult. Larva ©Eddy Lee

Weevils (Superfamily Curculionoidea) are sometimes also called snout beetles.


Fungus Weevils: Xylinada sp. at Rifle Range. Eucorynus crassicornis at Dairy Farm ©Eddy Lee


Rifle Range ©Eddy Lee


Mandai. NTU ©Eddy Lee

Tumbling Flower Beetles (Family Mordellidae, Superfamily Tenebrionoidea) are beetles with a sharp abdomen end.


Glipa malaccana ©Eddy Lee

Darkling Beetles (Family Tenebrionidae, Superfamily Tenebrionoidea) are so called as they are thought to be dark dwellers, but there are many while are not.


Amarygmus sp. at Lower Peirce ©Eddy Lee


Darkling Beetle sp. at Dairy Farm ©Eddy Lee

 
Rifle Range. Dairy Farm ©Eddy Lee

Ground, Tiger, Diving and Whirligig Beetles (Suborder Adephaga)


Tiger Beetles (Subfamily Cicindelinae) are grouped with Ground Beetles (Family Carabidae). They are predatory beetles and they have large bulging eyes and long legs. They are amongst the fastest insects in the world.


UnID ©Eddy Lee


Rifle Range ©Eddy Lee


Bronze Tiger Beetle at Rifle Range. Tricondyla sp. at Upper Peirce ©Eddy Lee


Cylindera discreta. Golden-spotted Tiger Beetle (Cicindela aurulenta). Both at Rifle Range ©Eddy Lee


Therates dimidiatus. Turquoise Tiger Beetle. Both at Rifle Range ©Eddy Lee

References

1. http://www.beetle-diversity.com/
2. http://www.natureloveyou.sg/Minibeast-Beetle/Home_All.html
3. http://davidmoh1313.wix.com/beetlesg
4. http://sgmacro.blogspot.sg/
5. http://www.singaporeinsects.com/

1 comment:

  1. Hi,
    For reference [3], please note that I have moved my website to

    http://davidmoh1313.wix.com/beetlesg

    Thanx.

    David Moh

    ReplyDelete