Insects of the Bornean Rainforest Part 1: Caterpillars

If you spend ten minutes in the forests of Borneo, you might not see the thousands of insects that surround you, but you will hear them. Life bursts from every inch of this biologically rich environment, from the branches that provide highways for ants, to the sheltering cracks and crevices in the trees, to the shady undersides of leaves.

Orangutan Foundation International Ibu Evi & Howard Insects of the Forest Part 1 Caterpillars
Howard clings to OFI caregiver, Ibu Evi.

Ibu Evi, the coordinator of Pondok Dua, one of our nursery facilities, is a compassionate caregiver and a comfort for many of the young orangutans here at the Orangutan Care Center and Quarantine (OCCQ) in Pasir Panjang, Kalimantan Tengah (Central Indonesian Borneo). She also is an exceptional photographer of some of the smaller, mesmerizing creatures she comes into contact with during daily releases with the orangutans. For a number of years, while following orangutans as they explore and learn, she has captured detailed photos of the insects of Borneo.

2017-02-06_PondokDua_dwn_003_IbuEvi_wmSpotting species takes time, experience, and an intuitive understanding of forest botany. In the tropical rainforest, it is even possible to encounter a species not yet fully identified or scientifically named. Only with patience and attention to detail can one capture glimpses of an insect in the forest. With miniscule contact or breath of wind, the insect will scurry or fly away. Discover this elusive world through Ibu Evi’s eyes, as we feature her exceptional photographs of the weird and wonderful insect fauna hidden in the forest.

Part 1: Caterpillars

Caterpillars are what Ibu Evi discovers most frequently in the forest. They are eating machines and slow to move as they concentrate on eating. Leaves perforated like giant honeycombs are the souvenirs of their slow travels through the forest. The sheer mystery of their future transformation is captivating. In many traditions across the globe, this metamorphosis is seen as an icon of hope.

Their winged adult forms are vibrant and patterned, but caterpillars themselves are far from dull. The variety of size and appearance is fascinating. Because they are a rich source of protein to many animals, caterpillars have developed an extensive range of defence mechanisms. Some mechanisms include: cryptic coloration to make the caterpillar look like a fallen leaf or bird droppings, illusions to make caterpillars appear larger, venom production, or toxic breath in the case of the tobacco hornworm. Caterpillars are impressively built, putting vertebrates to shame. Caterpillars may have as many as 4,000 muscles in their bodies. Their heads alone are comprised of around 250 muscles.

In this essay, we are fortunate to share Ibu Evi’s vision of caterpillars in the Bornean rainforest.

 

Color Sergeant Butterfly Caterpillar
2017-02-06_Forest_Insects_IbuEvi_018_wmKingdom: Animalia
Phylum: Arthropoda
Class: Insect
Order: Lepidoptera
Family: Nymphalidae
Genus: Athyma
Common Name: Color Sergeant Butterfly Caterpillar
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Striped Blue Crow Butterfly Caterpillar
2017-02-06_Forest_Insects_IbuEvi_026_wm
Kingdom: Animalia
Phylum: Arthropoda
Class: Insect
Order: Lepidoptera
Family: Nymphalidae
Genus: Euploea
Common Name: Striped Blue Crow Butterfly Caterpillar
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Maplet Butterfly Caterpillar
2017-02-06_Forest_Insects_IbuEvi_037_wm
Kingdom: Animalia
Phylum: Arthropoda
Class: Insect
Order: Lepidoptera
Family: Nymphalidae
Genus: Chersonesia
Common Name: Maplet Butterfly Caterpillar
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Banded Swallowtail Butterfly Caterpillar
2017-02-06_Forest_Insects_IbuEvi_035_wm
Kingdom: Animalia
Phylum: Arthropoda
Class: Insect
Order: Lepidoptera
Family: Papilionidae
Genus: Papilio
Common Name: Banded Swallowtail Butterfly Caterpillar
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Orange Owlet Moth Caterpillar
2017-02-06_Forest_Insects_IbuEvi_059_wm
Kingdom: Animalia
Phylum: Arthropoda
Class: Insect
Order: Lepidoptera
Family: Hesperiidae
Genus: Burara
Common Name: Orange Owlet Moth Caterpillar
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Common Mime Butterfly Caterpillar
2017-02-06_Forest_Insects_IbuEvi_063_wm
Kingdom: Animalia
Phylum: Arthropoda
Class: Insect
Order: Lepidoptera
Family: Papilionidae
Genus: Chilasa
Common Name: Common Mime Butterfly Caterpillar

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