American Cockroach (Periplaneta americana)
German Cockroach (Blattella germanica)
Unknown Cockroach (Periplaneta sp)?
Burrowing Cockroach (Pycnoscelus indicus)
Brown Banded Cockroach (Supella longipalpa)
Pacific Beetle Roach Mimic (Diploptera punctata)
Unidentified Tenebrionidae Beetle ( )
Blister Beetle (Thelyphassa apicata)
False Blister Beetle (Ananca kanack) ?
Eucalyptus Long-horned Beetle (Phoracantha semipunctata)
*Small Beetle (Psammoechus insularis)
Powder-post Beetle [Bostrichidae]
Elaterid Click Beetle (Anchastus swezeyi)
Bark Beetle (Xylossandrus sp)
Bark Beetle type 2 (Xylossandrus sp.)
Gonocephalum Darkling Beetle (Gonocephalum adpressiforme) ?
*7mm Beetle (  ) ?
Rove Beetle (Thyreocephalus albertisi)
Tenebrionid Beetle (Uloma bonzica)
Chinese Rose Beetle (Adoretus sinicus)
Lyctid Beetle (Minthea sp.)
*Rhipidius Beetle (Rhipidius pectinicornis)
Giant Click Beetle (Chalcolepidius erythroloma)
*Burrowing Beetle (Geotomus pygmaeus)
*Black Beetle (Dactylosternum hydrophiloides)
*Phenolia Beetle (Lasiodactylus sp.) (probably Lasiodactylus tibialis)
Ceresium Long-horned Beetle (Ceresium unicolor)
Curtomerus Long-horned Beetle (Curtomerus flavus)
Plumeria Borer (Lagocheirus undatus)
Monkeypod Roundheaded Borer (Xystrocera globosa)
Cuban Laurel Thrip (Gynaikothrips ficorum)
Notiobia Ground Beetle (Stenolophus sp.)
Burrowing Bug (Rhytidoporus indentatus)
Cigarette Beetle (Lasioderma serricorne)
Mango Flower Beetle (Protaetia fusca)
Kiawe Bruchid (Algarobius bottimeri) ?
Unknown Seed Beetle (unknown bruchidae) ?
Steel-blue Ladybird Beetle (Halmus chalybeus)
Squash Lady Beetle (Epilachna borealis)

Flour Weevil ( ) ?

Names preceded by an asterisk indicate common names that I have made up.

Insects: roaches and beetles

Three cockroaches of varying sizes positioned side by side on a flat surface, with the smallest on the left and the largest on the right, all facing forward.

American Cockroach

Accidentally introduced before 1882, probably from North America.

Close-up of a brown mosquito with long legs and wings, perched on a light-colored surface.
Close-up of a cockroach on a white surface.

This butterfly naturally occurs in Asia and was first recorded in Hawaii in 1971.  It is commonly seen on or near citrus trees which are its host plant.

German Cockroach

Close-up of an insect with a dark head, yellow and black striped thorax, and yellow abdomen with black bands, lying next to a centimeter ruler displaying 4.5 centimeters.

Unknown Cockroach

Accidentally introduced before 1882, probably from North America.

Close-up of a small brown and black cockroach on a white surface.

Burrowing Cockroach

Dorsal view. Cockroach is 2 cm long.

Close-up of a small, brown termite on a smooth, blue surface.

Brown Banded Cockroach

Person holding a small black insect, possibly a pill bug or wood louse, on their thumb in an outdoor setting with green plants and soil in the background.

Pacific Beetle Roach Mimic

Close-up of a small black beetle with segmented body and fine ridges on its back on a white surface.
Close-up of a black beetle on a blue fabric background.

Unidentified Tenebrionidae Beetle

This beetle is 1.2 cm long.

Close-up of a black beetle with elongated body and six legs on a light blue surface.
Close-up of a small, metallic insect with elongated antennae, dark eyes, and a shiny, brown body on a blue surface.

Blister Beetle

Side view. Body length is 10mm.

A small brown insect with six legs and antennae on a light blue surface.
Close-up of a small brown preserved insect on a blue surface, with a water droplet on its tail.

False Blister Beetle

Body length 10 mm.

Close-up of a large beetle with long antennae next to a ruler for scale.

Eucalyptus Long-horned Beetle

This is a non-native species, established in Hawaii since 1965.

Close-up of a tiny, reddish-brown insect with an oval-shaped body and long, thin antennae on a plain background.

This beetle is about 3 mm long.  Identification made by Bishop Museum.  Introduced species.

Small Beetle

A shiny, dark brown, oval-shaped gem or stone with tiny specks on its surface, resting on a blue background.
Close-up of a dark brown beetle with a glossy, shiny shell on a blue surface.

Ventral closed.  Beetle is 3 mm long. Ventral fully opened. The larva of these beetles eat wood. Specimens are about 2.5 mm long.

Powder-post Beetle

Close-up of a dark brown beetle on a blue background.
Close-up of two dark brown beetles on a blue background, one with wings closed and the other with wings open, revealing its body and legs.

Beetle on the left (dorsal view) shows wing on the right half.  Beetle is approximately 10 mm long.

Elaterid Click Beetle

Close-up of a tiny insect, possibly a wasp or bee, with a shiny, metallic body against a blurred green background.
Close-up of a small, brown fly with transparent wings on a green background.
Two tiny insects, possibly fruit flies, are seen with their reflections on a shiny surface.

Dorsal view.  Wing extending from under carapace. Two specimens, both with wings showing.  The body of this small beetle is only about 2 mm in length.

Bark Beetle

Close-up of a small brown beetle on a dark surface.
Close-up of a small, dark brown insect, possibly a beetle or cockroach, on a gray surface.

Bark Beetle type 2

Ventral view.  Body length = 2mm.

Close-up of a dark-colored insect, possibly a beetle, on a white surface with a shadow cast to the right.
A dark brown or black insect or beetle with a rounded body, lying on a light-colored surface.

Dorsal view.  Note bilateral blackish spots. Ventral view. Beetle is 4 mm long.

Gonocephalum Darkling Beetle

Close-up of a small, brown, beetle-like insect on a light green background.
Close-up of a small beetle with dark, shiny, and patterned shell, walking on a green surface.

7 mm Beetle

Side view.

Close-up of a small black and brown insect with antennae on a green background.
Close-up of a tiny, black, and iridescent insect with wings, legs, and antennae, on a green surface.
Close-up of a tiny black-head tick with long, pointed legs.

Beetle length = 1.3 cm.  Per Frank Howarth of the Bishop Museum this “is a rove beetle, family Staphylinidae. From the color pattern, size, and what I can see of its form, it is probably Thyreocephalus albertisi (Fauvel, 1877) which was purposefully introduced as a generalist predator of agricultural pests. Rove beetles are mostly predators but also scavenge on rotting animal remains.”

Rove Beetle

A small black beetle with a segmented body, antennae, and shiny exoskeleton on a beige surface.
Close-up of a beetle with dark, shiny body and segmented wings on a plain surface.
Close-up of a small, dark-colored insect on a green surface, viewed from above.

This beetle is 9 mm long.  Found in rotting log.  Per David Preston of the Bishop Museum “This appears to be the Tenebrionid beetle Uloma bonzica Marseul 1876. They are associated with decaying plant material and the species was first collected by Al Getmann in the mid-eighties from rotting banana stumps.”

Tenebrionid Beetle

Close-up of a small, dark-colored beetle with a shiny, textured exoskeleton on a plain background.
A close-up of a tiny, black and brown beetle with a textured, patterned exoskeleton on a light green surface.
Close-up of a bee on a green background, showing details of its head, eyes, antennae, and part of its thorax.
Close-up of a small insect with detailed textures and markings on its body, positioned on a green background.

Close-up of ventral side of head. This beetle is 1 cm long.
This species was accidentally introduced sometime before 1896.  It is native to Japan and Taiwan.

Chinese Rose Beetle

Close-up of a small, dark brown beetle with shiny and textured exoskeleton on a light-colored surface.

Lyctid Beetle

Close-up of a small brown wasp with long antennae on a plain surface.

Rhipidius Beetle

A close-up of a preserved beetle specimen placed on a white surface with a black ruler below for size comparison. The beetle is elongated, dark, with visible wings and body segments.

This beetle is about 2.8 mm long.

A striped beetle placed on a white surface above a ruler, showing a length of approximately 13 centimeters.

Giant Click Beetle

Per Frank Howarth of the Bishop Museum “This is a giant click beetle, accidentally introduced from Central America.  The name is Chalcolepidius erythroloma Candeze, 1857, family Elateridae. The larvae are predators and scavengers in rotting wood, and the adults feed on fruits and considered minor pests. The adults make good pets as they are long-lived and have such a spectacular jumping ability.”This beetle is about 2.8 mm long.

Close-up of a small black insect with six legs, compound eyes, and antennae, standing on a pale surface.
Close-up of a small black insect on a green surface
Close-up of a small, shiny black insect with spiny legs, lying on its back with its underside visible.

Burrowing Beetle

Dorsal view. This beetle is 5 mm long.

A small metallic beetle with a shiny, speckled black and gold appearance on a plain surface.

Black Beetle

This beetle is 6 mm long. ID by David Preston of the Bishop Museum.

Close-up of a small brown beetle on a textured black surface.
Close-up of a tiny, brown, beetle-like insect on a smooth, gray surface.
Top view of a coffee bean with visible roasted surface and interior.

Phenolia Beetle

This beetle is 7 mm long.  ID by David Preston of the Bishop Museum.

Close-up of a small, brown, elongated insect with six legs on a blue background.

Ceresium Long-horned Beetle

Body length is 13 mm.

Close-up image of a small brown insect with long antennae on a white surface, with part of text visible on the left side reading 'Designed by Apple'.

Curtomerus Long-horned Beetle

This introduced species is common in Hawaii and attacks a wide range of woody tree and shrub species. Body length is 8 mm. Species identification by Frank Howarth of the Bishop Museum.

A close-up image of a lone beetle with long antennae on a plain white background.

Plumeria Borer

Body length is 1.5 cm. Identification by Forest and Kim Starr of the Hawaiian Ecosystems at Risk project (HEAR).

Close-up of a brown longhorn beetle on a light blue surface.

Monkeypod Roundheaded Borer

Body length is 2.5 cm.

Close-up of a black beetle with iridescent wings on a gray surface.

Cuban Laurel Thrip

This strange little bug is 2 mm long. ID by David Preston of the Bishop Museum.

Close-up of a small beetle with a shiny black and iridescent body and long antennae against a blue surface.

Notiobia Ground Beetle

Body length of this beetle is 6 mm. ID by David Preston of the Bishop Museum.

A close-up view of a small, shiny, black insect with six legs and antennae, on a flat surface.
Close-up of a black beetle on a grey surface.

Burrowing Bug

This beetle is about 6 mm long.

Close-up of a brown beetle with shiny body on a blue surface.
Close-up of a small, brown, speckled seed or nut with a slit cut into it, placed on a smooth, light blue surface.

Cigarette Beetle

Per Frank Howarth of the Bishop Museum: “This tiny beetle is in the family Anobiidae, which includes many stored product pests and powder-post beetles. Hawaii has many (about 100 species) native wood borers in this group, but your specimen appears to be either the cigarette beetle (Lasioderma serricorne) or the herbaium beetle (Tricorynus herbarium), both of which feed on a variety of dried household products (yes even tobacco!).”

Close-up of a black and brown beetle on a white background.
Close-up of a beetle with black and gold patterned shell on a white background.

Mango Flower Beetle

This type of scarab beetle was first found in Hawaii in 1949.

Close-up image of a small brown beetle with antennae on a plain, light-colored background.

Kiawe Bruchid (Kiawe Seed Beetle)

This seed beetle (bruchidae) is about 6 mm long and is not native to Hawaii.

Close-up of a small, brown, curled-up insect, possibly a seed or seed-like organism, on a smooth gray surface.
Close-up of a small, brown insect or seed on a dark surface.

Unknown Seed Beetle

This seed beetle (bruchidae) is about 3 mm long.

Close-up image of a small, shiny, iridescent, blue-green gem or bead on a white background.
A small, round, black ladybug with orange markings on a white background.

Native to Eastern Australia. Introduced to Western Australia, California, Hawaii and New Zealand as a biological control agent.

Steel-blue Ladybird Beetle

A close-up of a small ladybug on a person's fingertip.

This ladybug beetle is one of the few that feed on plants rather than as a predator of insects. It is a minor pest of squash family plants.

Squash Lady Beetle

Two small insects on a dark surface, one with a light brown body and the other darker with a reddish head, likely fleas or similar insects.

Flour Weevil

Found in a bag of flour. Length about 1 mm.