Rove Beetles, Scarabs, Fireflies, Longhorn, Leaf and Snout Beetles (Suborder Polyphaga)
Scarabs, Stag Beetles, etc (Infraorder Scarabaeoidea)
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.
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.
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.
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.
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.
The Superfamily Cucujoidea contains the ladybirds and fungus beetles.
Left: Micrencaustes lunulata (Family Erotylidae). Right: Languria mozardi (Family Languriidae). Rifle Range ©Eddy Lee
Ladybirds (Family Coccinellidae) are easily recognisable from the dome-shaped body.
Weevils (Superfamily Curculionoidea) are sometimes also called snout beetles.
Fungus Weevils. Left: Xylinada sp. at Rifle Range. Right: Eucorynus crassicornis at Dairy Farm ©Eddy Lee
Tumbling Flower Beetles (Family Mordellidae, Superfamily Tenebrionoidea) are beetles with a sharp abdomen end.
Darkling Beetles (Family Tenebrionidae, Superfamily Tenebrionoidea) are so called as they are thought to be dark dwellers, but there are many while are not.
Left: Rifle Range. Right: 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.
Cylindera discreta. Golden-spotted Tiger Beetle (Cicindela aurulenta). Both at Rifle Range ©Eddy Lee