Sierra’s Bug Book

The collection

Every tiny encounter.

Photographs, working identifications, and field notes from all 112 observations.

Showing 112 of 112 observations

Luna Moth
Lepidoptera

Luna Moth

Actias luna

Oceanport, New Jersey Aug 10, 2026
Spotted Lanternfly
Hemiptera

Spotted Lanternfly

Lycorma delicatula

Long Branch, New Jersey Aug 7, 2026
Red-Shouldered Stink Bug Nymph
Hemiptera

Red-Shouldered Stink Bug Nymph

Thyanta custator

Mountain View, California Aug 3, 2026
Boxelder Bug
Hemiptera

Boxelder Bug

Boisea trivittata

Big Sur, California Jul 14, 2026
Sharp Tailed Darkling Beetle
Coleoptera

Sharp Tailed Darkling Beetle

Eleodes acuticauda

Los Angeles, California Jun 25, 2026
Honey Bee
Hymenoptera

Honey Bee

Apis mellifera

Los Angeles, California Jun 25, 2026
Diabolical Ironclad Beetle
Coleoptera

Diabolical Ironclad Beetle

Phloeodes diabolicus

Los Angeles, California Jun 25, 2026
Diabolical Ironclad Beetle
Coleoptera

Diabolical Ironclad Beetle

Phloeodes diabolicus

Los Angeles, California Jun 25, 2026
Horsefly
Diptera

Horsefly

Tabanus

Los Angeles, California Jun 23, 2026
Green Lacewing Larva
Neuroptera

Green Lacewing Larva

Chrysoperla carnea

Dresden, Germany Jun 1, 2026
Green Immigrant Leaf Weevil
Coleoptera

Green Immigrant Leaf Weevil

Polydrusus formosus

Berlin, Germany May 31, 2026
European Firebug
Hemiptera

European Firebug

Pyrrhocoris apterus

Zaandijk, Netherlands May 27, 2026
Green Devil Dung Beetle
Coleoptera

Green Devil Dung Beetle

Oxysternon conspicillatum

Rurrenabaque, Bolivia May 17, 2026
Bullet Ant
Hymenoptera

Bullet Ant

Paraponera clavata

Rurrenabaque, Bolivia May 17, 2026
Flesh Fly
Diptera

Flesh Fly

Sarcophaga

Rurrenabaque, Bolivia May 17, 2026
Burchell's Army Ants
Hymenoptera

Burchell's Army Ants

Eciton burchellii

Rurrenabaque, Bolivia May 17, 2026
Mosquito
Diptera

Mosquito

Identification in progress

Rurrenabaque, Bolivia May 16, 2026
Wood Cockroach Nymph
Blattodea

Wood Cockroach Nymph

Identification in progress

Rurrenabaque, Bolivia May 15, 2026
Hidden Snout Weevil
Coleoptera

Hidden Snout Weevil

Cryptorhynchinae

Rurrenabaque, Bolivia May 15, 2026
Masked Chafers
Coleoptera

Masked Chafers

Cyclocephala

Rurrenabaque, Bolivia May 9, 2026
Sootywing
Lepidoptera

Sootywing

Staphylus

Machu Picchu, Peru Apr 15, 2026
BEETLE
Coleoptera

BEETLE

Identification in progress

Machu Picchu, Peru Apr 15, 2026
Stick Bug
Phasmatodea

Stick Bug

Identification in progress

Machu Picchu, Peru Apr 15, 2026
CATERPILLAR
Lepidoptera

CATERPILLAR

Identification in progress

Machu Picchu, Peru Apr 15, 2026
CHRYSALIS
Lepidoptera

CHRYSALIS

Identification in progress

Machu Picchu, Peru Apr 15, 2026
WASP (consuming bug)
Hymenoptera

WASP (consuming bug)

Identification in progress

Machu Picchu, Peru Apr 15, 2026
Wasp
Hymenoptera

Wasp

Identification in progress

Machu Picchu, Peru Apr 15, 2026
Planthopper
Hemiptera

Planthopper

Identification in progress

Machu Picchu, Peru Apr 15, 2026
Moth Caterpillar
Lepidoptera

Moth Caterpillar

Identification in progress

Machu Picchu, Peru Apr 15, 2026
Harvestman
Opiliones

Harvestman

Neopucroliella sp.

Machu Picchu, Peru Apr 15, 2026
Jumping Spider
Araneae

Jumping Spider

Frigga cf. kessleri

Machu Picchu, Peru Apr 15, 2026
Sharpshooter leafhopper
Hemiptera

Sharpshooter leafhopper

Erythrogonia sp.

Machu Picchu, Peru Apr 15, 2026
Dark Winged Fungus Gnat
Diptera

Dark Winged Fungus Gnat

Identification in progress

Machu Picchu, Peru Apr 15, 2026
Hedgehog Fly
Diptera

Hedgehog Fly

Identification in progress

Machu Picchu, Peru Apr 15, 2026
Leaf Beetle
Coleoptera

Leaf Beetle

Galerucinae

Machu Picchu, Peru Apr 15, 2026
Broad-Nosed Weevil
Coleoptera

Broad-Nosed Weevil

Entiminae

Machu Picchu, Peru Apr 14, 2026
Green Stink Bug Nymph
Hemiptera

Green Stink Bug Nymph

Chinavia cf. runaspis

Machu Picchu, Peru Apr 14, 2026
Postman Butterfly
Lepidoptera

Postman Butterfly

Heliconius melpomene

Machu Picchu, Peru Apr 14, 2026
Giant Owl Butterfly
Lepidoptera

Giant Owl Butterfly

Caligo eurilochus

Machu Picchu, Peru Apr 14, 2026
Giant Owl Butterfly Caterpillars
Lepidoptera

Giant Owl Butterfly Caterpillars

Caligo eurilochus

Machu Picchu, Peru Apr 14, 2026
Monarch Butterfly
Lepidoptera

Monarch Butterfly

Danaus plexippus

Machu Picchu, Peru Apr 14, 2026
Blue Morpho Butterfly
Lepidoptera

Blue Morpho Butterfly

Morpho menelaus

Machu Picchu, Peru Apr 14, 2026
Banded King Shoemaker
Lepidoptera

Banded King Shoemaker

Prepona demophon

Machu Picchu, Peru Apr 14, 2026
Caterpillar
Lepidoptera

Caterpillar

Identification in progress

Machu Picchu, Peru Apr 14, 2026
Hawk Moth Caterpillar???
Lepidoptera

Hawk Moth Caterpillar???

Identification in progress

Machu Picchu, Peru Apr 14, 2026
Treehopper Nymph
Hemiptera

Treehopper Nymph

Ceresa?

Coracora, Peru Apr 8, 2026
Carpenter Moth Caterpillar
Lepidoptera

Carpenter Moth Caterpillar

Macrocossus toluminus

Coracora, Peru Apr 8, 2026
Moth Caterpillar
Lepidoptera

Moth Caterpillar

Lobeza medina

Río Verde, Ecuador Mar 23, 2026
Central American Montane Tiger Beetle
Coleoptera

Central American Montane Tiger Beetle

Pseudoxycheila tarsalis

Río Verde, Ecuador Mar 23, 2026
Spotless Ladybug
Coleoptera

Spotless Ladybug

Cycloneda cf. sanguinea

Bartolomé Island, Ecuador Mar 15, 2026
Orb Weaver Spider
Araneae

Orb Weaver Spider

Neoscona sp.

Genovesa Island, Ecuador Mar 14, 2026
Broad-Nosed Weevil
Coleoptera

Broad-Nosed Weevil

Entiminae

Santa Rosa, Ecuador Mar 9, 2026
Broad-Nosed Weevil
Coleoptera

Broad-Nosed Weevil

Entiminae

Santa Rosa, Ecuador Mar 5, 2026
Galapagos Giant Long-Horned Beetle
Coleoptera

Galapagos Giant Long-Horned Beetle

Mallodon chevrolatii galapagoensis

Santa Rosa, Ecuador Mar 1, 2026
Conehead Katydid
Orthoptera

Conehead Katydid

Copiphora cf. brevicauda

Santa Rosa, Ecuador Feb 28, 2026
Praying Mantis
Mantodea

Praying Mantis

Galapagia solitaria

Santa Rosa, Ecuador Feb 28, 2026
Flat-Faced Longhorn Beetle
Coleoptera

Flat-Faced Longhorn Beetle

Acanthoderes sp.

Santa Rosa, Ecuador Feb 27, 2026
Chinchorro (Caterpillar Hunter)
Coleoptera

Chinchorro (Caterpillar Hunter)

Calosoma granatense

Santa Rosa, Ecuador Feb 23, 2026
Galapagos Carpenter Bee
Hymenoptera

Galapagos Carpenter Bee

Xylocopa darwini

Bella Vista, Ecuador Feb 23, 2026
Geometer Moth
Lepidoptera

Geometer Moth

Identification in progress

Santa Rosa, Ecuador Feb 22, 2026
Tarantula Hawk Wasp
Hymenoptera

Tarantula Hawk Wasp

Pepsis sp.

Machachi, Ecuador Feb 6, 2026
Owlet Moth
Lepidoptera

Owlet Moth

Identification in progress

Machachi, Ecuador Feb 3, 2026
Shag-Carpet Caterpillar
Lepidoptera

Shag-Carpet Caterpillar

Prothysana cf. felderi

Mindo, Ecuador Jan 28, 2026
Flat Backed Millipede
Polydesmida

Flat Backed Millipede

Identification in progress

Mindo, Ecuador Jan 28, 2026
Sharpshooter Leafhopper
Hemiptera

Sharpshooter Leafhopper

Tettisama quinquemaculata

Mindo, Ecuador Jan 28, 2026
Pine Processionary Moth Caterpillar (in procession)
Lepidoptera

Pine Processionary Moth Caterpillar (in procession)

Thaumetopoea pityocampa

Barcelona, Spain Dec 13, 2025
Pine Processionary Moth Caterpillar
Lepidoptera

Pine Processionary Moth Caterpillar

Thaumetopoea pityocampa

Barcelona, Spain Dec 13, 2025
European Black Slug
Stylommatophora

European Black Slug

Arion cf. ater

Portugal Dec 10, 2025
Earwig
Dermaptera

Earwig

Identification in progress

Portugal Dec 10, 2025
Asian Hornet
Hymenoptera

Asian Hornet

Vespa velutina

Nazaré, Portugal Dec 8, 2025
Bloody-Nosed Beetle
Coleoptera

Bloody-Nosed Beetle

Timarcha tenebricosa

Nazaré, Portugal Dec 8, 2025
Shield-Backed Katydid
Orthoptera

Shield-Backed Katydid

Thyreonotus sp.

Gibraltar Dec 3, 2025
Bloody-Nosed Beetles
Coleoptera

Bloody-Nosed Beetles

Timarcha tenebricosa

La Spezia, Italy Nov 17, 2025
Bloody-Nosed Beetles
Coleoptera

Bloody-Nosed Beetles

Timarcha tenebricosa

La Spezia, Italy Nov 17, 2025
Bloody-Nosed Beetles
Coleoptera

Bloody-Nosed Beetles

Timarcha tenebricosa

La Spezia, Italy Nov 17, 2025
Bronze Beetle
Coleoptera

Bronze Beetle

Chrysolina bankii

Pompeii, Italy Nov 11, 2025
German Yellowjacket
Hymenoptera

German Yellowjacket

Vespula germanica

Pompeii, Italy Nov 11, 2025
Firefly Larva
Coleoptera

Firefly Larva

Lampyris sp.

Pompeii, Italy Nov 11, 2025
Leaf Beetle
Coleoptera

Leaf Beetle

Chrysolina sp.

Mount Vesuvius, Italy Nov 10, 2025
Bloody-Nosed Beetles
Coleoptera

Bloody-Nosed Beetles

Timarcha tenebricosa

Assisi, Italy Nov 8, 2025
Brown Marmorated Stink Bug
Hemiptera

Brown Marmorated Stink Bug

Halyomorpha halys

Bled, Slovenia Oct 29, 2025
Asian Lady Beetle
Coleoptera

Asian Lady Beetle

Harmonia axyridis

Bled, Slovenia Oct 29, 2025
Tansy Leaf Beetle
Coleoptera

Tansy Leaf Beetle

Galeruca tanaceti

Bled, Slovenia Oct 29, 2025
Fox Moth Caterpillar
Lepidoptera

Fox Moth Caterpillar

Macrothylacia rubi

Zagreb, Croatia Oct 25, 2025
Woodland Dor Beetle
Coleoptera

Woodland Dor Beetle

Anoplotrupes stercorosus

Zagreb, Croatia Oct 25, 2025
Poplar Leaf Beetle
Coleoptera

Poplar Leaf Beetle

Chrysomela populi

Kotor, Montenegro Oct 18, 2025
White Margined Burrower Bug Nymph
Hemiptera

White Margined Burrower Bug Nymph

Identification in progress

Kotor, Montenegro Oct 18, 2025
Dead-Nettle Leaf Beetle
Coleoptera

Dead-Nettle Leaf Beetle

Chrysolina fastuosa

Kotor, Montenegro Oct 18, 2025
Yellow-Spotted Stink Bug
Hemiptera

Yellow-Spotted Stink Bug

Erthesina fullo

Tirana, Albania Oct 14, 2025
Oriental Hornet
Hymenoptera

Oriental Hornet

Vespa orientalis

Athens, Greece Oct 6, 2025
Indian Milkweed Bug
Hemiptera

Indian Milkweed Bug

Spilostethus pandurus

Ios, Greece Oct 5, 2025
MAYBE: Saltmarsh Moth Caterpillar
Lepidoptera

MAYBE: Saltmarsh Moth Caterpillar

Estigmene acrea

San Diego, California Sep 2, 2025
Six-Spotted orbweaver
Araneae

Six-Spotted orbweaver

Araniella sp.

Yosemite National Park, California Aug 12, 2025
California Broad-Necked Darkling Beetle
Coleoptera

California Broad-Necked Darkling Beetle

Coelocnemis dilaticollis

Lake Tahoe, California Jul 3, 2025
Asian Lady Beetles
Coleoptera

Asian Lady Beetles

Harmonia axyridis

San Diego, California Oct 21, 2024
Figeater Beetle
Coleoptera

Figeater Beetle

Cotinis mutabilis

San Diego, California Aug 4, 2024
Green Sweat Bee
Hymenoptera

Green Sweat Bee

Agapostemon sp.

La Jolla, California Jun 15, 2024
Fiery Skipper
Lepidoptera

Fiery Skipper

Hylephila phyleus

San Diego, California Apr 23, 2024
Jumping Spider
Araneae

Jumping Spider

Phidippus sp.

La Jolla, California Apr 12, 2024
Thread-Waisted Sand Wasp
Hymenoptera

Thread-Waisted Sand Wasp

Ammophila sp.

La Jolla, California Apr 12, 2024
Harlequin Bug Nymph
Hemiptera

Harlequin Bug Nymph

Murgantia histrionica

Rancho Palos Verdes, California Mar 28, 2024
Harlequin Bug Nymph (combine w/ above if not combined)
Hemiptera

Harlequin Bug Nymph (combine w/ above if not combined)

Identification in progress

Rancho Palos Verdes, California Mar 28, 2024
Gray Bird Grasshopper
Orthoptera

Gray Bird Grasshopper

Schistocerca nitens

Manhattan Beach, California Mar 27, 2024
Honeybee Comb
Hymenoptera

Honeybee Comb

Identification in progress

Manhattan Beach, California Mar 27, 2024
House Centipede
Scutigeromorpha

House Centipede

Scutigera coleoptrata

San Diego, California Mar 19, 2024
Blue-Green Sharpshooter
Hemiptera

Blue-Green Sharpshooter

Graphocephala atropunctata

La Jolla, California Mar 14, 2024
Gall Midge
Diptera

Gall Midge

Identification in progress

La Jolla, California Mar 11, 2024
Crane Fly
Diptera

Crane Fly

Identification in progress

La Jolla, California Mar 11, 2024
Red-Shouldered Stink Bug Nymph (consumed by ants)
Hemiptera

Red-Shouldered Stink Bug Nymph (consumed by ants)

Identification in progress

Mountain View, California Aug 23, 2026
Tropical House Cricket
Orthoptera

Tropical House Cricket

Gryllodes sigillatus

Mountain View, California Aug 20, 2026
Balkan Field Grasshopper (likely)
Orthoptera

Balkan Field Grasshopper (likely)

Chorthippus bornhalmi

Meteora, Greece Oct 10, 2025
Snakefly
Raphidioptera

Snakefly

Identification in progress

Truckee, California Jul 6, 2025