Bug of the Week has been a regular feature since the beginning of the Growing With Science blog. This is an archive of all the posts organized by order or taxonomic group.
Hemiptera – the true bugs
Assassin bug adult
Assassin bug nymph
Assassin bug nymph (close)
Bee assassin bug
Bordered plant bug
Boxelder bug
Cactus bug
Giant mesquite bug
Lace bug
Large milkweed bug
Leaf-footed bug nymph
Leaf-footed bug
Striped milkweed bug
Small milkweed bug, Lygaeus kalmaii
Seed bug, Oncopeltus sanguiniolentus
Another photo of same species
Squash bug
Stink or shield bug
Shield bug
Water strider
Homoptera – cicadas, aphids, scales, leafhoppers
Aphids
Aphids on fava beans
Oleander aphids
Rose aphids
Sunflower aphids 
Cochineal scale
Cicadas
Cicada nymph
Cicada nymph 2
Older post about cicadas
Leafhoppers
Flatid planthopper
Sharpshooter
Smoke Tree Sharpshooter
Cixiid planthopper
Rosemary spittle bugs
Whiteflies
Dermaptera – earwigs
Earwig life cycle
Earwigs
Thysanoptera – thrips
Thrips
Isoptera – termites
Desert encrusting termites
Termites
Orthoptera – grasshoppers, katydids and crickets
Crickets singing
Indian house crickets
Field crickets
Tree crickets
General life cycle of a grasshopper
Can you see me? grasshopper
Lubber grasshoppers
Pallid-winged grasshopper
Overwintering grasshopper
Katydids
Katydid nymph
Odonata -dragonflies and damselflies
What is the difference between a dragonfly and a damselfly?
Amberwing dragonfly
Dragonfly laying eggs
Damselfly
Same damselfly
Mantodea – mantids
Praying mantis
Praying mantis life stages
Praying mantis nymph
Another praying mantis with another egg case
Pscoptera- book lice, bark lice
Bark lice or tree cattle
Psocoptera- bark louse
Neuroptera- lacewings
Ant lions
Lacewing larva – covered
Lacewing larva- small
Green lacewing
Green lacewing – full life cycle including cocoon
Brown lacewing
Embioptera – webspinners
Webspinners
Coleoptera -beetles
Ashy-gray lady beetle
Carpet beetle larva
Click beetle adult and larva (wireworm)
Click beetle
Desert headstanding beetle
Elegant blister beetle
Fireflies or lightning bugs (beetles)
Firefly Question
Green June beetle
Ground beetles
Jewel beetles
Lady beetle science
Leaf beetle larva
Multicolored Asian lady beetle life stages
Twelve-spotted lady beetle
Twice-stabbed lady beetle
Palo verde beetle
Sap beetles
Scarab beetle
Seed beetle adults and eggs
Seed beetles
Western spotted cucumber beetle
Lepidoptera – butterflies and moths
Arizona fall butterflies
Arizona fall butterflies and the plants that feed them
Northern Arizona butterflies
Blue butterfly
Butterflies sunning
California sister butterfly
Caterpillars
Chrysalises
Giant swallowtail
Orange dog (giant swallowtail caterpillar)
Another orange dog
Gulf fritillary butterfly
Hackberry butterfly
Queen butterfly caterpillar
Queen adult laying eggs
Queen butterfly eggs
Queen chrysalis and emerged butterfly
Mexican yellow caterpillar
Migrating red admiral butterflies
Monarch butterfly laying eggs
Monarch butterfly
Painted lady migration
Skipper
Swallowtail butterflies
Raising caterpillars
Butterfly gardening
moths:
Armyworm
Budworm
Cabbage looper eggs
Cabbage looper caterpillar
Cabbage looper moth
Cutworm caterpillar
First instar caterpillar
Moth eggs it came from
Genista caterpillar
Hornworm caterpillar
Tobacco hornworm
Rustic sphinx caterpillar
Banded woolly bear caterpillar
Snapdragon caterpillar
Sunflower moth caterpillar
Gardening for moths
Looper caterpillar
Moth life cycle
Silkworm eggs
Silkworm caterpillars and moths
Silkworm history
White-lined sphinx caterpillars (and what they eat)
White-line sphinx caterpillars crossing the road
Diptera – flies
Bee fly (Geron)
Another bee fly
Black soldier fly
Crane flies
Crane flies and larva (older post)
Flies
Flower fly adult 1, 2, 3
Flower fly larva
Fruit flies
Fruit flies again
New kind of fruit fly
Flies resting on leaves
Green bottle fly
Thick-headed fly
Hymenoptera – bees, wasps and ants
Sawflies
Ants
Ants on nectaries
Ant cocoons
See more about ants at our sister blog, Wild About Ants
Bees:
Bees
Buzz Pollination by bees
Carpenter bee
Carpenter bee in flight (video)
Dandelion and honey bee
Solitary bees
Another solitary bee 
Solitary bees of spring
Very first Bug of the Week, a solitary bee from April 7, 2008
Digger bees
Bumble bee
Long-horned bees
Green sweat bee
Tiny sweat bees
Honey bee science
Honey bees drinking
Sunflower bees
Wasps:
Chalcid wasp
Chalcid wasp (older)
Cicada wasp
Mud dauber wasp
Paper wasp
Parasitic wasp
Tarantula hawk
White-faced hornet
Arachnids
Harvestman
Scorpions
Desert scorpion
Sunspiders
Red mites
Spiders:
Black widow egg case and hatchlings
Cellar spider
Crab spider with egg case
Garden spider
Giant crab spider (Popular post)
Jumping spider
Jumping spiders
Feather-legged orb weaver
Marbled cellar spider
Orb spider
Spider webs
Spider
Yellow crab spider
Another crab spider
Wolf spider
Other Arthropods
Millipedes
Water fleas
Group posts
Pollinators
Characteristics of Arthropod groups
Characteristics of five major orders of insects
Favorite photos from 2011
Singing insects
Hollyhock insects
Insect mouthparts
Hi every buddy what are you doing today????
Bey every boddy!!!!
Thank you for the very nice review, Balefire Labs.