Commonly Observed Beetle Eggs

See also: Hemiptera Eggs • Moth Eggs • Butterfly Eggs • Things Mistaken for Eggs

Most beetles lay their eggs in hidden places where they are rarely seen by naturalists, for example, in soil or leaf litter, under water, or inside the tissues of host plants, animals, or fungi. Therefore, the guide below is heavily biased towards the few beetle groups that lay their eggs out in the open. Also keep in mind that the eggs of many beetle species look alike, and it's difficult to ID eggs just based on morphological similarity. Eggs may also change shape & color as the embryo develops inside, so a freshly laid egg will usually look different from one that's several hours or days old. For phytophagous groups it may help to know the plant on which the egg was laid, so you'll want to record the plant species whenever you can or even better make an observation for it. Other factors to note are the habitat, the part of the plant on which you found the egg(s), and whether they were laid singly or in clusters. The beetles recorded in the area and the time of year the eggs were observed may also be helpful in narrowing down an ID.

Click on an image below to go to the observation page where you can zoom in to get a better look and additional views of the specimen may be available. Click on the species name to see all iNat observation for that species that are annotated as eggs.

• Leaf Beetles (Chrysomelidae)
• Lady Beetles (Coccinellidae)
• True Weevils (Curculionidae)
• Leaf-rolling Weevils (Attelabidae)
• Straight-snouted Weevils (Brentidae)
• Ship-timber Beetles (Lymexylidae)
• Longhorn Beetles (Cerambycidae)
• Jewel Beetles (Buprestidae)
• Darkling Beetles (Tenebrionidae)
• Oil Beetles (Meloidae)
• Wedge-shaped Beetles (Ripiphoridae)
• Cicada-Parasite Beetles (Rhipiceridae)
• Water Penny Beetles (Psephenidae)
• Water Scavenger Beetles (Hydrophilidae)
• Whirligig Beetles (Gyrinidae)
• Ground Beetles (Carabidae)

Leaf Beetles (Chrysomelidae)

Cryptocephalinae

(1) Macrolenes dentipes egg case (consisting of excrement) on trees & shrubs in Southern Europe. By @aurearamon, cc-by-nc. (2) Clytra female laying an egg. She will later use excrement to cover it with a protective case. By @sascha_n, cc-by. (3) Clytrini egg case consisting of fecal platelets. By @megachile, cc-by-nc.

(1) Chlamisus (Cloaked Warty Leaf Beetles) female with a stalked egg covered in excrement. By @pimentavix, cc-by-nc. (2) Exema female in the process of covering her egg with excrement. By @whateverwatcher, cc-by-nc.

Eumolpinae

(1) Chrysochus auratus (Dogbane Leaf Beetle) on Apocynaceae (Dogbane Family) in North America. By @peterwchen, cc-by.

Cassidinae

(1) Ogdoecosta biannularis on Ipomoea murucoides (Convolvulaceae) in Mexico. By @davidtello, cc-by-nc. (2) Ogdoecosta mexicana in Mexico. By @flecksy, cc-by-nc. (3) Phytodectoidea duodecimsignata in Mexico. By @quetzalangeles, cc-by-nc.

(1) Chelymorpha cribraria on Convolvulaceae (Bindweed Family) in the Americas. By @livanescudero, cc-by-nc. (2) Chelymorpha cassidea (Argus Tortoise Beetle) on Convolvulaceae (Bindweed Family) in North America & the Caribbean. By @eridanxharahi, cc-by.

(1) Chelymorpha inflata on Convolvulaceae (Bindweed Family) in South America. By @henriqueandrades, cc-by-nc. (2) Chelymorpha varians on Convolvulaceae (Bindweed Family) in South America. By @ricardo_huenuanca, cc-by-nc.

(1) Acromis spinifex on Convolvulaceae (Bindweed Family) in South America. By @cesarfavacho, cc-by-nc. (2) Paraselenis marginipennis on Convolvulaceae (Bindweed Family) in South America. By @kathyapamela, cc-by-nc. (3) Botanochara sedecimpustulata on Convolvulaceae (Bindweed Family) in South America. By @franciele_xingu, cc-by-nc.

(1) Omaspides brunneosignata on Ipomoea syringifolia (Convolvulaceae) in Brazil. By @cesarfavacho, cc-by-nc. (2) Omaspides specularis on Convolvulaceae (Bindweed Family) in South America. By @felipecampos, cc-by-nc. (3) Omaspides bistriata on Convolvulaceae (Bindweed Family) in Central & South America. By @tomkennedy, cc-by-nc.

(1) Anacassis fuscata on Asteraceae in South America. By @mirmeleon, cc-by. (2) Anacassis cribrum on Baccharis (Asteraceae) in South America. By @mirmeleon, cc-by. (3) Cyrtonota paupertina on Asteraceae in South America. By @rob-westerduijn, cc-by-nc.

(1) Cassida rubiginosa (Thistle Tortoise Beetle) on Asteraceae (Sunflower Family) in Europe, Asia, North America & New Zealand. By @harsiparker, cc-by-nc. (2) Cassida canaliculata on Lamiaceae (Mint Family) in Europe. By @vojczech, cc-by-nc. (3) Cassida circumdata on Convolvulaceae (Bindweed Family) in South & Southeast Asia. By @chinaberryhuang, cc-by-nc.

(1) Deloyala cruciata on Convolvulaceae (Bindweed Family) in South America. By @tamiranda, cc-by-nc. (2) Gratiana pallidula (Eggplant Tortoise Beetle) on Solanum (Night Shades) in Central & North America. By @leonardohe, cc-by-nc. (3) Basipta stolida (Green Tortoise Beetle) on Brachylaena (Silver-Oaks) in Southern Africa. By @magdastlucia, cc-by-nc.

(1) Aspidimorpha miliaris (Asian Spotted Tortoise Beetle) on Convolvulaceae (Bindweed Family) in South & Southeast Asia. By @david8817, cc-by-nc. (2) Aspidimorpha furcata (Furcated Tortoise Beetle) on Convolvulaceae (Bindweed Family) in South & Southeast Asia. By @hollythefrog, cc-by-nc.

(1) Aspidimorpha puncticosta (Dune Tortoise Beetle) on Convolvulaceae (Bindweed Family) in Africa. By @magdastlucia, cc-by-nc. (2) Conchyloctenia punctata (African Spotted Tortoise Beetle) on Convolvulaceae (Bindweed Family) in Africa. By @are_el_cue, cc-by-nc.

(1) Epistictina reicheana on Stereospermum tetragonum (Bignoniaceae) in South Asia. By @prajwal_ullal, cc-by-nc. (2) Eugenysa venosa in South America. By @olivier_fortune, cc-by-nc. (3) Goniochenia haroldi in South America. By @kyukich, cc-by-nc.

(1) Eurypepla calochroma (Iridescent Tortoise Beetle) on Cordia sebestena (Scarlet Cordia, Boraginaceae) in Florida, Central America & the Caribbean. By @techgrl18, cc-by. (2) Physonota alutacea (Wild Olive Tortoise Beetle) on Cordia (Boraginaceae) in the Americas. By @heidi_eaton, cc-by-nc. (3) Hemisphaerota cyanea (Palmetto Tortoise Beetle) on Sabal (Palmettos) in North America. By @cecildomyiidae, cc-by.

(1) Odontota dorsalis (Locust Leaf-miner Beetle) female laying an egg mass which it will later cover with excrement, on Fabaceae (Legumes) in Eastern North America. By @johngarrett, cc-by-nc. (2) Microrhopala vittata (Goldenrod Leaf Miner Beetle) female covering her egg mass with excrement, on Goldenrods (Euthamia & Solidago, Asteraceae) in North America. By @mamiles, cc-by-nc-nd.

(1) Chalepus walshii egg case on Poaceae (Grasses) in North America. By @caththalictroides, cc-by-sa. (2) Sumitrosis rosea empty egg case associated with leafmine, on Fabaceae (Legumes) in North America. By @smschnerre, cc-by-nc.

(1) Dactylispa insulicola in Taiwan. By @max822, cc-by-nc. (2) Prosopodonta scutellaris in South America. By @rob-westerduijn, cc-by-nc.

Criocerinae

(1) Lilioceris lilii (Lily Leaf Beetle) on Liliaceae (Lilies) in Europe, Asia & North America. By @nicz, cc-by-nc-sa. (2) Lilioceris merdigera (Onion Beetle) on Allium (Onions), Convallaria (Lilies of the Valley), Lilium (True Lilies) & Polygonatum (Solomon's Seals) in Europe & Asia. By @alexis_orion, cc-by. (3) Lilioceris faldermanni on Liliaceae (Lilies) in Europe, the Middle East & West Asia. By @tekilay, cc-by-nc.

(1) Lilioceris cheni (Air Potato Leaf Beetle) on Dioscorea bulbifera (Air Potato) in South & Southeast Asia & North America. By @bryanjbd, cc-by-nc-nd. (2) Lilioceris egena on Dioscorea bulbifera (Air Potato) in Southeast Asia & North America. By @hollythefrog, cc-by-nc.

(1) Crioceris asparagi (Common Asparagus Beetle) on Asparagus officinalis (Asparagus) in Europe & North America. By @gillessanmartin, cc-by-sa.

(1) Lema bicincta on Dioscorea (Cinnamon Vines) in North & Central America. By @diana_rosas, cc-by-nc. (2) Lema bilineata (Tobacco Slug Beetle) on Solanaceae (Nightshade Family) in South America, Europe & Southern Africa. By @ieremiel, cc-by-nc-sa. (3) Lema apicalis on Vassobia breviflora (Solanaceae) in South America. By @henriqueandrades, cc-by-nc.

(1) Lema trivittata (Three-lined Lema Beetle) on Solanaceae (Nightshade Family) in North America. By @perelson, cc-by-nc. (2) Lema daturaphila (Three-lined Potato Beetle) on Solanaceae (Nightshade Family) in Central & North America, Australia, Southern Africa & Hawaii. By @jim_carretta, cc-by-nc.

(1) Lema decempunctata on Lycium chinense (Chinese Teaplant, Solanaceae) in East Asia. By @hakkahamushi, cc-by-nc. (2) Lema diversipes on Pueraria (Kudzus) in East Asia. By @hollythefrog, cc-by-nc.

Chrysomelinae

(1) Paropsis charybdis (Eucalyptus Tortoise Beetle) on Eucalyptus in Australia & New Zealand. By @mariannebroug, cc-by-nc. (2) Paropsis aegrota on Eucalyptus in Australia. By @gibbergavin, cc-by-nc.

(1) Paropsis aspera on Eucalypteae (Gum Trees) in Australia. By @gibbergavin, cc-by-nc. (2) Paropsis porosa on Eucalyptus in Australia. By @gibbergavin, cc-by-nc.

(1) Paropsis deboeri on Eucalyptus in Tasmania. By @corunastylis, cc-by-nc. (2) Paropsis atomaria female laying eggs on Eucalypteae (Gum Trees) in Australia, Taiwan & North America. By @habitatearth, cc-by-nc. (3) Paropsis atomaria eggs. By @debtaylor142, cc-by-nc.

(1) Paropsisterna cloelia (Eucalyptus Variegated Beetle) on Eucalyptus in Australia & New Zealand. By @natashataylor, cc-by-nc. (2) Paropsisterna sexpustulata (Eight-spotted Leaf Beetle) on Eucalypteae (Gum Trees) in Australia. By @donnamareetomkinson, cc-by-nc.

(1) Paropsisterna morio on Eucalyptus in Australia. By @tony_d, cc-by-nc. (2) Paropsisterna m-fuscum (Eucalyptus Leaf Beetle) on Eucalyptus in Australia & California. By @edoswalt, cc-by-nc.

(1) Paropsides soriculata on Pyrus (Pears) in East Asia. By @onidiras, cc-by-nc. (2) Paropsides calypso (Lilly Pilly Leaf Beetle) on Syzygium (Waterberries) in Australia. By @cobaltducks, cc-by-nc.

(1) Dicranosterna circe (White Acacia Leaf Beetle) on Acacia (Wattles) in Australia. By @tjeales, cc-by-sa. (2) Dicranosterna picea on Acacia (Wattles) in Australia. By @matilda_c, cc-by-nc.

(1) Dicranosterna selene on Acacia in Australia. By @donnamareetomkinson, cc-by-nc. (2) Dicranosterna semipunctata on Acacia in Australia & New Zealand. By @epitree, cc-by-nc.

(1) Chrysomela scripta (Cottonwood Leaf Beetle) on Salicaceae (Willow Family) in Central America & North America. By @amberenergy, cc-by. (2) Chrysomela aeneicollis (Willow Leaf Beetle) on Salicaceae (Willow Family) and Betulaceae (Birch Family) in Western North America. By @n_rank, cc-by-nc.

(1) Chrysomela populi (Poplar Leaf Beetle) on Salicaceae (Willow Family) in Europe & Asia. By @sanca13, cc-by-nc. (2) Chrysomela vigintipunctata (Spotted Willow Leaf Beetle) on Salicaceae (Willow Family) in Europe & Asia. By @onidiras, cc-by-nc.

(1) Plagiodera erythroptera on Salicaceae (Willow Family) in South America. By @ixofijmogenwalage, cc-by-nc. (2) Plagiodera arizonae on Salicaceae (Willow Family) in Western North America. By @mjplagens, cc-by-nc.

(1) Plagiodera versicolora (Imported Willow Leaf Beetle) on Salicaceae (Willow Family) in Europe, Asia & North America. By @tivanik, cc-by-nc. (2) Plagiodera septemvittata on Salicaceae (Willow Family) in East Asia. By @hollythefrog, cc-by-nc.

(1) Plagiosterna nigritarsis (Blackfoot Leaf Beetle) on Xylotheca kraussiana (African Dogrose) in South Africa. By @magdastlucia, cc-by-nc.

(1) Gastrophysa polygoni (Knotweed Leaf Beetle) on Polygonaceae (Knotweed Family) in North America, Europe & Asia. By @anita363, cc-by-nc. (2) Gastrophysa cyanea (Blue Dock Beetle) on Rumex (Docks) in North America. By @steven-cyclist, cc-by.

(1) Gastrophysa viridula (Green Dock Beetle) on Rumex (Docks) in Europe & West Asia. By @sskorpio, cc-by-nc. (2) Gastrophysa atrocyanea (Japanese Green Dock Beetle) on Polygonaceae (Knotweed Family), particularly Rumex (Docks) in East Asia. By @onidiras, cc-by-nc.

(1) Leptinotarsa juncta (False Potato Beetle) on Solanaceae (Nightshade Family) in North America. By @angelikatt, cc-by-nc. (2) Leptinotarsa decemlineata (Colorado Potato Beetle) on Solanaceae (Nightshade Family) in North America, Europe & Asia. By @apeterlongo, cc-by-nc. (3) Leptinotarsa lineolata on Ambrosia (Ragweeds) in Southwestern North America. By @leonardohe, cc-by-nc.

(1) Calligrapha serpentina (Globemallow Leaf Beetle) on Sphaeralcea (Globemallows) in Southwestern North America. By @gabinus2003, cc-by-nc. (2) Calligrapha spiraeae (Ninebark Calligrapha Beetle) on Physocarpus (Ninebarks) in Northeastern North America. By @mossman13, cc-by-nc.

(1) Labidomera clivicollis (Swamp Milkweed Leaf Beetle) on Apocynaceae (Dogbane Family) in Eastern North America. By @grebebird, cc-by. (2) Chrysolina americana (Rosemary Beetle) on Lamiaceae (Mint Family) in Europe & North Africa. By @berzou, cc-by-nc. (3) Chrysolina coerulans (Mint beetle) on Lamiaceae (Mint Family) in Europe & West Asia. By @jtdai, cc-by-nc.

Galerucinae

(1) Agelastica alni (Alder Leaf Beetle) on Alnus (Alders) in Europe & Asia. By @phygelius, cc-by-nc. (2) Agelastica coerulea on Betulaceae (Birch Family) in East Asia. By @onidiras, cc-by-nc.

(1) Galerucella pusilla (Golden Loosestrife Beetle) on Lythrum (Lythrum Loosestrifes) in Europe & North America. By @reinerjakubowski, cc-by-sa. (2) Galerucella calmariensis (Black-margined Loosestrife Beetle) oon Lythrum (Lythrum Loosestrifes) in Europe & North America. By @leoguy, cc-by-nc. (3) Galerucella lineola (Brown Willow Beetle) on Salicaceae (Willow Family) & Betulaceae (Birch Family) in Europe & West Asia. By @ilkkat, cc-by-sa.

(1) Xanthogaleruca luteola (Elm Leaf Beetle) on Ulmus (Elms) in Europe, West Asia, Australia, North & South America. By @kallut0, cc-by-nc. (2) Monocesta coryli (Larger Elm Leaf Beetle) on Ulmus (Elms) in Eastern North America. By @icopperbug, cc-by-nc. (3) Galeruca tanaceti (Black-punctured Leaf Beetle) on herbs & grasses in Europe & Asia. By @alexis_orion, cc-by.

(1) Poneridia semipullata (Figleaf Beetle) on Ficus (Figs) in Australia. By @dianneclarke, cc-by-nc. (2) Pyrrhalta viburni (Viburnum Leaf Beetle) egg cases on Viburnum in Europe, West Asia & North America. By @stevengarske, cc-by-nc. (3) Ophraella communa (Ragweed Leaf Beetle) on Heliantheae (Sunflowers and Allies), particularly Ambrosia artemisiifolia (Common Ragweed), in North America, Europe & Asia. By @davidenrique, cc-by-nc-sa.

(1) Disonycha leptolineata) on Itea virginica (Virginia Sweetspire) in North & Central America. By @markbuy, cc-by-nc. (2) Disonycha discoidea (Passionflower Flea Beetle) on Passiflora (Passionflowers) in Eastern North America. By @michellemsmith, cc-by. (3) Disonycha quinquelineata on Passiflora (Passionflowers) in North & Central America. By @techgrl18, cc-by.

(1) Podontia affinis on Spondias (Mombins) in Southeast Asia. By @johnhowes, cc-by-nc. (2) Podontia lutea on Anacardiaceae (Cashew Family) in Southeast Asia. By @hanchongchong, cc-by-nc.

(1) Agasicles hygrophila (Alligatorweed Flea Beetle) on Alternanthera philoxeroides (Alligatorweed) in the Americas, Southeast Asia, Australia & New Zealand. By @mfeaver, cc-by. (2) Altica litigata (Evening Primrose Flea Beetle) on Onagraceae (Evening Primrose Family) in North & Central America. By @mfeaver, cc-by. (3) Procalus viridis on Schinus latifolia (Chilean Pepper Tree) in Chile. By @diegoalmendras, cc-by.

Lady Beetles (Coccinellidae)

(1) Coccinella septempunctata (Seven-spotted Lady Beetle) in Europe, Asia & the Americas. By @mickelliot, cc-by-nc. (2) Adalia bipunctata (Two-spotted Lady Beetle) in Europe, Asia, Southern Africa, the Americas, Australia & New Zealand. By @v_stefan, cc-by-nc.

(1) Cycloneda sanguinea (Spotless Lady Beetle) in the Americas. By @justin_, cc-by-nc. (2) Cycloneda munda (Polished Lady Beetle) in Eastern North America. By @weecorbie, cc-by-nc. (3) Eriopis connexa in South America. By @soolquipildor, cc-by-sa.

(1) Harmonia conformis (Large Spotted Ladybird) in Australia & New Zealand. By @marin_moth, cc-by-nc. (2) Harmonia axyridis (Asian Lady Beetle) in Asia, Europe, Africa, New Zealand & the Americas. By @tmurray74, cc-by-nc. (3) Hippodamia variegata (Variegated Lady Beetle) in Europe, Africa, Asia, Australia & the Americas. By @jaunnemarelize, cc-by-nc. (4) Hippodamia convergens (Convergent Lady Beetle) in the Americas. By @bradgrimm, cc-by-nc.

(1) Calvia muiri in East Asia. By @onidiras, cc-by-nc. (2) Synonycha grandis (Giant Bamboo Ladybird) in Asia & Oceania. By @wallacechen, cc-by-nc.

(1) Illeis galbula (Fungus-eating ladybird) in Oceania. By @reiner, cc-by-nc-sa. (2) Illeis koebelei (Yellow Ladybird Beetle) in South, Southeast & East Asia. By @wallacechen, cc-by-nc.

(1) Micraspis furcifera in Australia. By @ellurasanctuary, cc-by-nc. (2) Megalocaria dilatata in Asia. By @naturalist7683, cc-by-nc.

(1) Epilachna borealis (Squash Lady Beetle) on Cucurbitaceae (Gourd Family) in Eastern North America. By @greatpurpleheron, cc-by-nc. (2) Epilachna clandestina on Cucurbitaceae (Gourd Family) in South America. By @andressa_mzerbinatti, cc-by-nc. (3) Henosepilachna argus (Bryony Ladybird) on Cucurbitaceae (Gourd Family) in Europe & the Middle East. By @axeldh, cc-by-nc.

(1) Epilachna mexicana on Solanum (Nightshades) in the Americas. By @ignacio_g_r150, cc-by-nc. (2) Henosepilachna vigintioctopunctata (Hadda Beetle) on Solanaceae (Nightshade Family) in Asia, Oceania & South America. By @jacqui-nz, cc-by. (3) Epilachna varivestis (Mexican Bean Beetle) on Fabaceae (Legumes) in North & Central America. By @dianemariesk, cc-by-nc.

(1) Scymnus rubicundus in South America. By @entomologista, cc-by-nc.

True Weevils (Curculionidae)

(1) Gonipterus (Eucalyptus Weevils) eggs covered in excrement in Oceania, Europe, Africa & the Americas. By @corunastylis, cc-by-nc.

(1) Xylosandrus compactus (Black Twig Borer) in twigs of trees of shrubs in Africa, Asia, Oceania & the Americas. By @eickwort, cc-by-nc. (2) Pityophthorus liquidambarus in branches of Liquidambar styraciflua (American Sweetgum) in Eastern North America. By @eickwort, cc-by-nc.

Leaf-rolling Weevils (Attelabidae)

(1) Homoeolabus analis (Oak Leaf Rolling Weevil) egg, (2) associated leaf roll (nidus) on Quercus (Oaks) in Eastern North America. By @victorengel, cc-by.

(1) Cycnotrachelus cyanopterus egg, (2) associated leaf roll (nidus) on Robinia pseudoacacia (Black Locust) in East Asia. By @onidiras, cc-by-nc.

(1) Tomapoderus ruficollis egg, (2) associated leaf roll (nidus) on Ulmaceae (Elm Family) in East Asia. By @onidiras, cc-by-nc.

(1) Byctiscus betulae egg, (2) associated leaf roll (nidus) on Salicaceae (Willow Family) & Betulaceae (Birch Family) in Europe & Asia. By @ilkkat, cc-by-sa.

Straight-snouted Weevils (Brentidae)

(1) Trichapion rostrum (Baptisia Seed Pod Weevil) inside seed pods of Baptisia (Wild Indigos) in North America. By @peterwchen, cc-by.

Ship-timber Beetles (Lymexylidae)

(1) Atractocerus (Ship-timber Beetles) under the bark of trees in Africa, Asia, Australia & the Americas. By @tsssss, cc0.

Longhorn Beetles (Cerambycidae)

(1) Monochamus scutellatus (White-spotted Sawyer) under the bark of conifers in North America. By @stormcatcher, cc-by-nc. (2) Anoplophora glabripennis (Asian Long-horned Beetle) under the bark of hardwood trees in Asia, Eastern North America & Europe. By @boggsosu, cc-by-nc. (3) Oncideres cingulata (Twig Girdler Beetle) under bark in twigs of hardwood trees in Eastern North America. By @laddercorn, cc-by-nc.

(1) Apriona rugicollis under bark of hardwood trees in East & Southeast Asia. By @grechan, cc-by-nc-sa. (2) Prionoplus reticularis (Huhu Beetle) in cracks in the bark of conifer logs in New Zealand. By @steven_evans, cc-by-nc. (3) Arhopalus ferus (Burnt Pine Longhorn) in cracks in the bark of dead & fire-damaged conifers in Europe, North Africa, Northern Asia & New Zealand. By @katesteeds, cc-by-nc.

Jewel Beetles (Buprestidae)

(1) Temognatha goryi on Eucalyptus in Australia. By @larissab22, cc-by-nc. (2) Agrilus viridis (Flatheaded Wood Borer) on trees in Europe & Asia. By @ruebezahl, cc-by-nc.

(1) Trachys minutus on trees, particularly Ulmus (Elms), in Europe & Asia. By @gillessanmartin, cc-by-sa. (2) Aphanisticus elongatus on Cyperaceae (Sedges) in Europe. By @gillessanmartin, cc-by-sa.

Darkling Beetles (Tenebrionidae)

(1) Bolitotherus cornutus (Forked Fungus Beetle) eggs covered in excrement on wood-decaying shelf fungi in North America. By @sam10turner, cc-by-nc. (2) Derispia in humid forests in Asia & Oceania. By @budak, cc-by-nc.

Oil Beetles (Meloidae)

(1) Tricrania stansburyi (Stansbury's Blister Beetle) near burrows of ground-nesting bees in Western North America. By @chickpeas, cc-by-nc. (2) Zonitis bilineata on Asteraceae in North America. By @whateverwatcher, cc-by-nc. (3) Stenoria analis on plants near aggregations of ground nesting bees in Europe. By @antoinekita, cc-by-nc.

(1) Megetra vittata in holes dug at the base of plants in North America. By @hyrumbaker, cc-by-nc. (2) Meloe (Oil Beetles) near burrows of ground-nesting bees in Europe, Asia, Africa & the Americas. By @lrussoutk, cc-by-nc.

Wedge-shaped Beetles (Ripiphoridae)

(1) Ripidiinae larviform female cockroach parasite laying eggs on vegetation. By @klearad, cc-by-nc.

Cicada-Parasite Beetles (Rhipiceridae)

(1) Rhipicera mystacina on trees & shrubs in Australia. By @bridgetteaussiemacro, cc-by-nc.

Water Scavenger Beetles (Hydrophilidae)

(1) Hydrophilus (Giant Water Scavenger Beetles) egg case on aquatic vegetation & floating debris in wetlands. By @johannes_s, cc-by. (2) Tropisternus affinis egg case on aquatic vegetation & floating debris in wetlands in North America. By @chalon9, cc-by-nc.

Water Penny Beetles (Psephenidae)

(1) Psephenus herricki on rocks in streams in Eastern North America. By @joseph92, cc-by-nc. (2) Psephenus texanus (Texas Water Penny Beetle) on rocks in streams in Texas & Mexico. By @mikef451, cc-by-nc.

Whirligig Beetles (Gyrinidae)

(1) Gyrinus under water, on aquatic vegetation. By @salishsealife, cc-by-nc.

Ground Beetles (Carabidae)

(1) Megadromus meritus in subterranean chambers in New Zealand. By @dave_holland, cc-by-nc. (2) Megadromus capito in subterranean chambers in New Zealand. By @mike68lusk, cc-by-nc.

(1) Megadromus guerinii in subterranean chambers in New Zealand. By @ecoman, cc-by. (1) Megadromus antarcticus (Alexander Beetle) in subterranean chambers in New Zealand. By @ecoman, cc-by.

Posted on September 11, 2023 07:32 PM by treegrow