Family Anobiidae – Death-Watch and Spider Beetles
Caenocara oculata – Puffball Beetle
Caenocara sp. – Puffball Beetle *
Family Buprestidae – Metalic Wood-boring Beetles
Agrilus bilineatus – Two-lined Chestnut Borer
Family Carabidae – Ground Beetles
Carabus nemoralis – European Ground Beetle
Family Cerambycidae – Longhorned Beetles
Orthosoma brunneum – Brown Prionid
Prionus californicus – California Root Borer
Family Chrysomelidae – Leaf Beetles
Agroiconota bivittata – Tortoise Beetle
Calligrapha spiraeae – Calligraphy Beetle
Cassida rubiginosa – Thistle Tortoise Beetle
Cassida rubiginosa – Thistle Tortoise Beetle
Charidotella sexpunctata – Golden Tortoise Beetle
Chrysomela aeneicollis larvae larva & pupa adult
Exema canadensis – Warty Leaf Beetle
Exema sp. – Warty Leaf Beetle
Labidomera clivicollis – Swamp Milkweed Leaf Beetle
Labidomera clivicollis – Swamp Milkweed Leaf Beetle
Leptinotarsa decemlineata – Colorado Potato Beetle
Leptinotarsa juncta – False Potato Beetle
Microrhopala vittata – Goldenrod Leaf Miner
Neochlamisus gibbosus – Warty Leaf Beetle
Neochlamisus gibbosus – Warty Leaf Beetle
Neolema cordata – Leaf Beetle
Ophraella conferta  (PDF)
Physonota calochroma floridensis – Geiger Tortoise Beetle eggs larvae adult adult
Physonota helianthi – Sunflower Tortoise Beetle
Pyrrhalta viburni – Viburnum Leaf Beetle
Family Ciidae – Minute Tree-fungus Beetles
Family Coccinellidae – Ladybird Beetles
Anatis labiculata – Fifteen-spotted Lady Beetle
Chilocorus kuwanae – Twice-stabbed Lady Beetle
Coleomegilla maculata – Spotted Lady Beetle
Cycloneda munda – Polished Lady Beetle
Cycloneda polita – Western Blood-Red Lady Beetle
Harmonia axyridis – Multicolored Asian Lady Beetle
Harmonia axyridis – Multicolored Asian Lady Beetle
Propylea quatourdecimpunctata – Fourteen-spotted Lady Beetle
Family Curculionidae – Snout and Bark Beetles
Mononychus vulpeculus – Iris Snout Weevil
Family Dermestidae – Carpet Beetles
Anthrenus verbasci – Varied Carpet Beetle
Anthrenus verbasci – Varied Carpet Beetle
Family Elateridae – Click Beetles
Family Erotylidae – Pleasing Fungus Beetles
Family Eucinetidae – Plate-thigh Beetles
Eucinetidae – Plate-thigh Beetles
Family Eucnemidae – False Click Beetles
Family Lampyridae – Fireflies
Lucidota atra – Black Firefly
Lucidota atra – Black Firefly
Pyractomena borealis – Firefly
Family Leiodidae – Round Fungus Beetles
Family Lycidae – Net-winged Beetles
Family Melyridae – Soft-winged Flower Beetles
Malachius aeneus – Scarlet Malachite Beetle
Family Mordellidae – Tumbling Flower Beetles
Family Nitidulidae – Sap-feeding Beetles
Carpophilus melanopterus  larva adult
Phenolia grossa – Sap Beetle larva adult
Family Phalacridae – Shining Flower Beetles
Phalacridae – Shining Flower Beetle
Family Phengodidae – Glowworm Beetles
Phengodes plumosa – Glowworm
Family Ptilodactylidae – Toe-winged Beetles
Family Pyrochroidae – Fire-Colored Beetles
Family Rhipiphoridae – Wedge-Shaped Beetles
Family Scarabaeidae – Scarab Beetles
Tomarus relictus – Carrot Beetle bugguide
Family Sphindidae – Cryptic Slime Mold Beetles
Sphindidae – Slime Mold Beetles
Family Staphylinidae – Rove Beetles
Family Stenotrachelidae – False Longhorn Beetles
Family Synchroidae – Synchroa Bark Beetles
Family Tenebrionidae – Darkling Beetles
Alobates pennsylvanica – False Mealworm Beetle
Androchirus erythropus – Comb-clawed Beetle
Bolitotherus cornutus – Forked Fungus Beetle
Bolitotherus cornutus – Forked Fungus Beetle
Bolitotherus cornutus – Forked Fungus Beetle
Bolitoherus cornutus – Forked Fungus Beetle
Family Trogossitidae – Bark-gnawing Beetles
* Indicates that I’ve put this lifecycle information on the info page for that species at Bugguide.net