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Category: Arthropoda

Aeshna umbrosa (Shadow Darner)

September 28, 2020 Dan Nelson 6 Comments

Shadow Darners are fairly large (TL 64-73mm) dragonflies which can be found region wide in a variety of habitats. As…

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Posted in: Aeshna, Aeshnidae, Animals, Anisoptera (Dragonflies), Arthropoda, Insecta, Odonata (Dragonflies and Damselflies), Plants, Species Profiles Filed under: Aeshna umbrosa, Shadow Darner

Neottiglossa undata

September 26, 2020 Dan Nelson 1 Comment

This is a small (4.5-6mm) stink bug (Pentatomidae) of open areas. It is brown with yellowish speckling and black pits, …

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Posted in: Animals, Arthropoda, Hemiptera, Insecta, Neottiglossa, Pentatomidae, Species Profiles Filed under: Neottiglossa undata

Araneus diadematus (Cross Orbweaver)

Dan Nelson 4 Comments

This member of the family Araneidae (orbweavers) is native to Europe but now has a holarctic distribution. Anecdotally I would…

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Posted in: Animals, Arachnida, Araneae (Spiders), Araneidae, Araneus, Arthropoda, Species Profiles Filed under: Araneus diadematus, Cross Orbweaver

Enallagma carunculatum (Tule Bluet)

September 25, 2020 Dan Nelson 2 Comments

This small (TL 25-35mm) member of the family Coenagrionidae (pond damsels) is a creature of slow or still water areas,…

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Posted in: Animals, Arthropoda, Coenagrionidae, Enallagma, Insecta, Odonata (Dragonflies and Damselflies), Plants, Species Profiles, Zygoptera (Damselflies) Filed under: Enallagma carunculatum, Tule Bluet

Psyllobora vigintimaculata (Twenty-spotted Lady Beetle)

Dan Nelson 3 Comments

This is a tiny (2-3mm) lady beetle (Coccinellidae) in the genus Psyllobora (Fungus-eating Lady Beetles). It is found region wide…

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Posted in: Animals, Arthropoda, Coccinellidae (Lady Beetles), Coleoptera (Beetles), Insecta, Plants, Psyllobora, Species Profiles Filed under: 20-spotted Lady Beetle, Psyllobora vigintimaculata

Archilestes californica (California Spreadwing)

September 24, 2020 Dan Nelson Leave a comment

This is the largest (total length 45-50mm) spreadwing damselfly in our region, and is identifiable on that basis alone. It…

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Posted in: Animals, Archilestes, Arthropoda, Insecta, Lestidae (Spreadwings), Odonata (Dragonflies and Damselflies), Plants, Species Profiles, Zygoptera (Damselflies) Filed under: Archilestes californica, California Spreadwing

Mantis religiosa (European Mantis, Praying Mantis)

September 23, 2020 Dan Nelson 3 Comments

Mantis religiosa is a large insect with adults ranging in length, including wings, from 47mm (males) to 75mm (females). They…

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Posted in: Animals, Arthropoda, Insecta, Mantidae, Mantis, Mantodea, Species Profiles Filed under: European Mantis, Mantis religiosa

Argiope trifasciata (Banded Garden Spider)

Dan Nelson 9 Comments

This is a large (body length 15-20mm for females; 4-6mm males) orbweaver (family Araneidae), with a silver carapace and banded…

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Posted in: Animals, Arachnida, Araneae (Spiders), Araneidae, Argiope, Arthropoda, Species Profiles Filed under: Argiope trifasciata, Banded Garden Spider

Calligrapha californica (Tickseed Leaf Beetle)

September 22, 2020 Dan Nelson 3 Comments

Calligrapha californica are small (5-8mm) Chrysomelidae (leaf beetles) that, in their native habitat within our region, are primarily associated with…

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Posted in: Animals, Arthropoda, Calligrapha, Chrysomelidae (Leaf Beetles), Insecta, Species Profiles Filed under: Calligrapha californica, Tickseed Leaf Beetle

Lycaena helloides (Purplish Copper)

September 20, 2020 Dan Nelson 2 Comments

This is by far the most abundant copper west of the Cascades, and the only copper that is found region…

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Posted in: Animals, Arthropoda, Insecta, Lepidoptera (Moths and Butterflies), Lycaena, Lycaenidae, Species Profiles Filed under: Lycaena helloides, Purplish Copper

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