Asian Tiger Mosquito (Aedes albopictus)
House Mosquito (Culex quinquefasciatus)
House Mosquito (Culex restuans) 
Crane fly (Tipulidae sp.) 
House Fly (Musca domestica)
Fly (  ) ?
Sarcophaga Fly (Sarcophaga sp.)
*Small Black Fly (Gabaza albiseta) ?
*Tiny Black Fly (  ) ?
*Stripe Fly (  ) ?
*Stripe Fly 2 (  ) ?
Eristalinus Syrphid Fly (Eristalinus arvorum) ?
Muscedae Fly ( ) ?
Vinegar Fly (Drosophila melanogaster)
Vinegar Fly (Drosophila hydei) ?
*Spot-wing Vinegar Fly (Leucophenga maculosa)
Black Soldier Fly (Hermetia illuscens)
*Spot-wing Soldier Fly (Evaza javanensis)
Crane Fly (Limoniaperkinsi)
*Clearwing Crane Fly (  ) ?
Mosquito Eater (Tipula oropezoides) ?
*Grey Crane Fly (  ) ?
Picture wing Fly (Euxesta annonae)
*Fly_01 (  ) ?
*White Gnat (  ) ?
Gull Midge ( ) ?
Midge (Chironomus hawaiiensis)  ?
Brown Lacewing (Hemerobius pacificus)
Green Lacewing (Chrysoperla comanche)
Green Lacewing larva (Chrysoperla comanche)
Greenhouse Whitefly (Trialeurodes vaporariorum) ?
*Humpback Fly (  ) ?
Mothmidge (Clogmia albipunctata)
Dark-winged Fungus Gnat (Sciara sp.)
*Little Green Fly ( ) ?
*Red Eye Two Stripe Fly (Lauxanidae sp.)
*Cross-stripe Fly (Anthomyia vicarians)
*Stripe-wing Fly (Euxesta stigmatias)
*Black-back Fly ( ) ?
*Fat Body Fly (Megaselia sp.)
*Grey Fly ( ) ?
Yellow Hoverfly (Allograpta obliqua)
Oriental Fruit Fly (Bactrocera dorsalis)
Wasp Mimic (Taeniaptera angulata)
Biting Midge (Dasyhelea sp.)

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

Insects: mosquitos, flies and gnats

Close-up of a mosquito on human skin.
Close-up of a mosquito with a patterned body, resting on a gray surface.
Close-up of a mosquito on a blue surface.

This is a day biting mosquito.  Hawaii was mosquito free before 1826, when the night biting mosquito arrived. The day-biting mosquitoes reached the islands around 1892-1897.

Asian Tiger Mosquito

House Mosquito (Culex quinquefasciatus)

A common mosquito in Hawaii and is bigger than the Tiger Mosquito. It's a night biter and the most effective vector of West Nile virus.
[Species identification made by Nieu Nguyen and Cyntiha Harrison of the New Orleans Mosquito Control program.]

Close-up of a mosquito feeding on a person's skin.
Close-up of a mosquito on a blue surface.

Mosquito (Culex restuans)

Body length = 3mm. Mosquito body length about 4 mm.

Close-up of a mosquito sitting on a water surface, casting a shadow.

Crane Fly

Close-up of a fly with large eyes and transparent wings, sitting on a white cotton-like object against a blue background.
A close-up of a small fly resting on a smooth surface.

House Fly

Close-up of a fly with transparent wings, six legs, large eyes, and a dark, fuzzy body.

Fly

This fly is 5 mm long.  It hovers with others in small groups.

Close-up of a housefly laying eggs.

This fly has a body length of 12mm.
ID by Frank Howarth of the Bishop Museum.

Sarcophaga Fly

Close-up of a tiny black insect with transparent wings and large eyes against a blue background.
Close-up of a small black fly with detailed eyes and wings on a plain surface.

Ventral.  Body length = 3 mm. Identification made by Dr. Norman Woodley, National Museum of Natural History.

Small Black Fly

Close-up of a small black fly with transparent wings on a gray background.

Tiny Black Fly

This fly is about 2 mm long.

A small insect, possibly a fly or bee, on a reflective surface
Close-up of a dead or resting small fly with wings on a smooth surface.

Stripe Fly

This fly is about 5 mm long.

Close-up of a tiny insect with wings, large eyes, and detailed body features.
Close-up of an insect with transparent wings and a dark body, possibly a small fly or bee, against a blue background.

Stripe Fly (type 2)

(Immediate left) Dorsal view.  Fly length = 3 mm.

Close-up of a dead bee with detailed wings and body
A close-up of a dead housefly on a green background.

Eristalinus Syrphid Fly

Ventral view.  Note protrusion from lower jaw!  Body length about 1 cm.

A close-up of a fly with a large head, clear wings, and dark body against a plain background.
Close-up of a small fly with clear wings and dark eyes

Body length = 4 mm. Identification made by Dr. Martin Hauser, California Department of Food and Agriculture.

Muscedae Fly

Close-up of a small brown insect, possibly a flea or louse, on a surface.
Two flies, one with iridescent wings, are positioned on a dark surface.

Vinegar Fly (D. melanogaster)

Close-up of a small fly with transparent, iridescent wings on a light-colored surface.

Vinegar Fly (D. hydei)

Close-up of a fly with red eyes on a light blue surface.
Close-up of a small insect with a dark, patterned body and reddish head on a blue background.

Side view. Body length = 3 mm.
Dorsal view. This is an introduced species.

Spot-wing Vinegar Fly

Close-up of a large black insect with transparent wings, resting on a light-colored surface.

This fly is about 1.5 cm long. Identification made by Dr. Martin Hauser, California Department of Food and Agriculture. The soldier fly was first seen in 1930 in the fields of the Hilo Sugar Co.; now it is found on all of the major Hawaiian islands.

Black Soldier Fly

A black and yellow insect with transparent wings on a white wall.
Close-up of a small black and tan flying insect, possibly a tiny wasp, on a white surface.

Body length is 6 mm.

Two black spots on clear wings and yellow patch on dorsal side of abdomen. This fly is a member of the Stratiomyidae family. Species identification by Norm Woodley at the USDA Systematic Entomology Laboratory.

Spot-wing Soldier Fly

Close-up of an aquatic insect with transparent wings and a striped body, swimming underwater.

Body length = 5mm; leg length = 15mm.
Per David Preston at the Bishop Museum  “It is a very common lowland crane fly species. It is an immigrant recorded from the Marquesas, Fiji, Tahiti and Samoa. The species can be recognized by the strongly arched vein R3, and broad black apices of the femora. It breeds in tree holes, leaf axils, and decaying vegetation.”

Crane Fly

Close-up of a mosquito with long legs and a slender body, flying against a blue background.

Clearwing Crane Fly

Body length = 4mm.  There are no spots on the wings.

A close-up of a crane fly resting on a surface, showing its long legs and translucent wings.

Body length = 1cm,  leg length = 4 cm.  This is a Tipulidae, possibly Tipula oropezoides.
Despite the common name “mosquito eater” adult crane flies feed on nectar or they do not feed at all; most crane fly species live only to mate and die once they become adults.

Mosquito Eater (a large Crane Fly)

Close-up of a wasp with transparent wings and a slender body.

Grey Crane Fly

Close-up of a small bee or fly with black and yellow striped abdomen against a light green background.

Body length = 1 cm, leg length = 2.5 cm.

Close-up of a tiny insect with black and white striped body on a gray background.

Fly body length = 4mm.
Bishop Museum says: the fly is Euxesta annonae (Fabricius, 1794), a picture-winged ottitid fly.

Picture Wing Fly

A close-up of a small insect with transparent wings, a striped body, and long antennae.

Fly_01

A small insect resembling a wasp or fly on a plain background.

White Gnat

Body length = 2 mm.

A tiny insect with wings, hanging from a thin thread, against a green background.

Body length about 1 mm. Identification made by Dr. Martin Hauser, California Department of Food and Agriculture.

Gull Midge

Close-up of two small insects with transparent wings on a blue surface.

Body length 2 mm.  These midges fly in small swarms.  This is probably the endemic species Chironomus hawaiiensis.

Midge

Close-up of a dragonfly with transparent wings and a brown body, resting on a surface.
Close-up of a small aquatic insect with a golden, patterned body, swimming near the water surface.
Close-up of a small insect with transparent wings and a brown body against a blue background.

Ventral view. Body length about 7 mm.  This may also called “Nesomicromus vagus” in the book by Howarth and Mull (Hawaiian Insects and their Kin) and is endemic on all major Hawaiian islands.

Brown Lacewing

Close-up of a small, transparent mayfly with delicate wings and a long, thread-like tail floating on water.
Close-up of a small green aquatic insect on water surface, with long antennae.

Green Lacewing

Side view.  Body length, 6 mm. Closer view of large eye.

Close-up of a tiny, fuzzy, gray moth resting on a surface
Close-up of a magnified insect larva, showing detailed hair-like structures and segmented body.
Close-up of a small, fuzzy insect or pest with tiny legs and antennae on a smooth blue surface.
Close-up of a small, white, fuzzy insect with long hair-like structures and antennae on a blue background.

Close-up dorsal view with fuzzy debris removed from back.

This bug collects various debris on its’ back which I presume is a method of disguise.  It looks like a small pile of fuzz and is only noticeable when it moves.

Green Lacewing larva

A tiny insect on a green surface among small rocks.
Close-up of a small green insect on a green leaf
A close-up of a small crustacean or marine life surrounded by tiny particles or debris.

Greenhouse Whitefly

Whitefly pupa with long glassy setae on the dorsal surface.

Close-up of a small insect with wings and antennae on a light green background.
Close-up of a small bee with black and yellow markings on its body, resting on a green surface.

Humpback Fly

Close-up of a tiny, winged insect with transparent wings and segmented body.

Side view.  Length = 1.5 mm.

Close-up of a tiny insect with antennae and hairy body floating in mid-air

Per Frank Howarth of the Bishop Museum: “It’s a moth fly, family Psychodidae; the species is Clogmia albipunctata (Williston, 1893). The larvae of this species are scavengers in highly polluted damp to aquatic habitats and are sometimes common in Hawaiian homes where they live in sink drains. The species has been introduced worldwide by humans. They are harmless to humans.”  Note: this specimen caught outside near a fish pot with water plant.

Mothmidge

Close-up of a black insect with wings and antennae on a light green surface.
Close-up of a dead wasp on a light-colored surface.

Dark-winged Fungus Gnat

Close-up of a small, translucent insect with long legs and antennae, on a blue background.
Close-up of a small insect with transparent wings, a yellowish body, and six legs, on a gray background.

Little Green Fly

Close-up of a small fly with iridescent wings against a solid background.

Dorsal view.  Fly is a bit over 3 mm long.

Close-up of a small fly with red eyes on a blue surface.

Dorsal view.  Body length is 2 mm. Identification made by Dr. Martin Hauser, California Department of Food and Agriculture.

Red Eye Two Stripe Fly

Close-up of a fly resting on a light-colored surface
Close-up of a black fly on a white surface.

Cross-stripe Fly

Close-up of a small black and yellow-striped insect with wings, possibly a bee or wasp, on a blue surface.
Close-up of a small black bee with transparent wings on a gray surface.

Stripe-wing Fly

This fly is 3 mm long.  It is probably a type of picture wing fly (Euxesta sp.)

Close-up of a tiny flying insect with transparent wings and a dark body on a gray surface
Close-up of a small insect with transparent wings and a dark, shiny body on a light surface.

Black-back Fly

This fly is 2 mm long.

Close-up of a small black insect on a white surface.
Close-up of a tiny insect with wings on a gray surface.

Fat Body Fly

Body is 3 mm long.

Close-up of a small insect, possibly a thrips or tiny wasp, on a light surface.
Close-up of a small insect, possibly a bee or wasp, on a pale surface.

Grey Fly

This fly is 2 mm long.

Close-up of a wasp with yellow and black striped body, transparent wings, and large eyes on a light background.
Close-up of a fly with transparent wings, yellow and black striped body, and large compound eyes.

Yellow Hoverfly (aka Syrphid Fly)

Body length is 12 mm.

Close-up of a insect with wings, black and brown body, and large eyes.
A close-up of a small insect with transparent wings, black and yellow markings, on a smooth surface.

Side view. Body length is 7 mm. Per David Preston of the Bishop Muesum “This is the oriental fruit fly Bactrocera dorsalis (Hendel) which attacks over 300 cultivated and wild fruits including Annona (cherimoya, atemoya, sugar apple), avocado, banana, bittermelon, citrus, coffee, guava, macadamia, mango, papaya, passion fruit, peppers, persimmon, and tomato. Accidentally introduced into Hawaii in 1944 or 1945 (Fullaway, 1947).”

Oriental Fruit Fly

Close-up of a small insect with elongated legs and a shiny body, possibly a wasp or bee, on a blue surface.
A close-up of a mosquito.

Per Frank Howarth of the Bishop Museum: “the animal is a true fly, order Diptera, not a wasp, but the species has evolved to fool potential predators. The species is Taeniaptera angulata (Loew, 1866), family Micropezidae, “the stilt-legged flies.” It’s a relatively recent introduction to Hawaii. The larvae live in damp rotting fleshy plant material, such as rotting sugar cane.”

Wasp Mimic

A small insect with transparent wings and long, thin legs on a gray surface

Biting Midge