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Insect Encyclopedia — 75 Species Directory

Encyclopedia of popular beetles and stag beetles with care guides, traits, and breeding methods.

Featured Insect

Showing 17 of 75 species

Atlas Beetle

Atlas Beetle

Atlas beetle

Beginner

Large beetle from Southeast Asia. Three horns similar to Caucasus but smaller. Relatively easy to keep.

Three hornsAccessibleSE Asian
Blue Death-Feigning Beetle

Blue Death-Feigning Beetle

Asbolus verrucosus

Beginner

Blue-white beetle from North American deserts. Named for its death-feigning defense behavior. Very hardy, long-lived, and extremely easy to keep.

DesertBeginner-friendlyLong-lived

Five-horned Beetle

Eupatorus gracilicornis

Beginner

Unique beetle with five horns on head and thorax. Southeast Asian origin. Relatively small and easy to keep.

Five hornsUniqueEntry-level

Flat Stag Beetle

Dorcus titanus

Beginner

A large stag beetle distributed throughout Japan. Characterized by powerful mandibles and flat body, popular for beetle fighting.

Flat stagLargeJapanese
Giant African Mantis

Giant African Mantis

Sphodromantis viridis

Beginner

Large mantis from Africa. Green body with thick raptorial forelegs. Hardy and voracious, ideal entry-level mantis. Relatively easy to handle.

MantisBeginner-friendlyAfrica
Gideon Beetle

Gideon Beetle

Xylotrupes gideon

Beginner

A medium beetle widely distributed in Southeast Asia. Hardy beginner species for foreign beetles.

GideonMediumHardy

Japanese Rhinoceros Beetle

Allomyrina dichotoma

Beginner

A Japanese summer icon. Popular from kids to adults. Larvae grow in leaf compost, pupating into adults in about a month. Perfect starter beetle.

Beginner-friendlyDomesticSummer classic
Kokuwa Stag Beetle

Kokuwa Stag Beetle

Dorcus rectus

Beginner

The most common small stag beetle in Japan's woodlands. Hardy, overwinters as an adult and lives for years — an ideal beginner species.

NativeBeginner-friendlyOverwinters

Papuan Golden Stag

Lamprima adolphinae

Beginner

A small stag beetle with vivid metallic sheen. Varied colors: green, blue, purple, gold.

Papuan GoldenMetallicSmall

Praying Mantis

Beginner

A popular insect catching prey with scythe-like forelegs. Many enthusiasts keep them as pets.

Praying MantisPredatorMolting

Rainbow Stag Beetle

Phalacrognathus muelleri

Beginner

The world's most beautiful stag beetle from Australia. Iridescent metallic rainbow body is its defining trait. Docile and easy to keep. Larvae thrive on both fungus bottles and substrate.

Beginner-friendlyExoticBeautiful
Rainbow Stag Beetle (Color Morphs)

Rainbow Stag Beetle (Color Morphs)

Phalacrognathus muelleri var.

Beginner

Color morphs of Rainbow Stag Beetle. Green, blue, red, purple, black — various color forms created through selective breeding. Extremely collectible.

RainbowColor morphsBeginner-friendly
Sabii Beetle

Sabii Beetle

Allomyrina pfeifferi

Beginner

A beetle from Southeast Asia whose rusty (sabi) body color is the origin of its name. Same genus as the Japanese rhinoceros beetle, sharing similar keeping methods, making it an easy-to-keep exotic beetle even for beginners. Horn shape is similar to the Japanese species.

Rhinoceros beetleExoticSoutheast Asia
Saw Stag Beetle

Saw Stag Beetle

Prosopocoilus inclinatus

Beginner

Japans most popular stag beetle. Named for saw-like mandibles. Summer icon beloved by children.

Beginner-friendlyJapanese summerSaw mandibles
Stick Insect

Stick Insect

Phasmatodea sp.

Beginner

Elongated insect mimicking twigs. Many species worldwide. Easy care — just feed plant leaves. Many species reproduce parthenogenetically. Popular for education.

CamouflageBeginner-friendlyHerbivore
Suji Stag Beetle

Suji Stag Beetle

Dorcus striatipennis

Beginner

A small stag beetle with longitudinal grooves on the elytra. Resembles the kokuwa but small males and females show clear striations. A hardy, common species from lowlands to high mountains.

NativeStriated elytraBeginner-friendly
Sun Beetle

Sun Beetle

Pachnoda marginata

Beginner

Bright yellow and black flower beetle from Africa. Small, hardy, and easy to breed. Adults eat jelly and fruit. Larvae grow in leaf litter. Perfect entry-level beetle.

Flower beetleBeginner-friendlyEasy breeding

Insect FAQ

How much do beetles cost?
Japanese rhinoceros beetles cost 300-1,000 yen, giant stag beetles 2,000-30,000 yen, and Hercules beetles 5,000-50,000+ yen depending on species and size.
Can beginners start keeping insects?
Japanese rhinoceros beetles and saw stag beetles are easy to keep and great for beginners. A basic container and beetle jelly from a 100-yen shop is all you need to start.
How long do beetles live?
Adult rhinoceros beetles live 2-3 months, saw stag beetles 3-6 months. Giant stag beetles can live 2-5 years as adults, offering years of enjoyment.
What are the benefits of raising larvae?
Larvae are cheaper than adults and you get to experience the thrill of eclosion. Raising large specimens using fungus bottles or substrate is rewarding and educational.
What should I check when buying insects?
Check that tarsi (feet) are intact, the insect is active, and there are no mites. Choose specimens with documented size and lineage information.