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What

Gray Hairstreak Strymon melinus

Observer

kueda

Date

August 24, 2014 11:17 AM PDT

Photos / Sounds

What

Monarch Butterfly Danaus plexippus

Observer

kueda

Date

August 24, 2014 11:35 AM PDT

Description

Several adults flying around too, but harder to photograph.

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What

Vivid Dancer Argia vivida

Observer

kueda

Date

August 24, 2014 10:22 AM PDT

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Observer

kueda

Date

August 24, 2014 11:16 AM PDT

Description

Large (2-3 cm), metallic Ammophila, feeding on buckwheat.

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Vivid Dancer Argia vivida

Observer

kueda

Date

August 24, 2014 09:52 AM PDT

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What

Oregon western rosinweed Calycadenia truncata

Observer

kueda

Date

August 24, 2014 09:38 AM PDT

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Checkered White Pontia protodice

Observer

kueda

Date

August 24, 2014 08:41 AM PDT

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Narrowleaf milkweed Asclepias fascicularis

Observer

kueda

Date

August 24, 2014 11:36 AM PDT

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Large Milkweed Bug Oncopeltus fasciatus

Observer

kueda

Date

August 24, 2014 11:36 AM PDT

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Crystalline Gall Wasp Andricus crystallinus

Observer

kueda

Date

August 24, 2014 11:06 AM PDT

Description

Many oaks in the area are just laden with this gall. I guess I don't hike in this part of the park every year so I don't have historical (albeit anecdotal) evidence for comparison, but it seems like there are way more galls in drought years.

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Scarlet Monkeyflower Mimulus cardinalis

Observer

kueda

Date

August 24, 2014 10:19 AM PDT

Photos / Sounds

What

rod wirelettuce Stephanomeria virgata

Observer

kueda

Date

August 24, 2014 08:14 AM PDT

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California Sister Adelpha californica

Observer

rhislop

Date

August 21, 2014

Description

I observed several California Sisters flitting amongst the Oaks along the North Peak Trail, Mt Diablo, CA.

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Observer

rhislop

Date

August 21, 2014

Description

A small day-flying moth, approx 1 in. wingspan, with light tan upper-wings, and the lower wings dark colored with a white wingbar (see attached pic). Need some help with identification. Thanks!

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Mormon Metalmark Apodemia mormo

Observer

rhislop

Date

August 21, 2014

Description

I found about 8-10 Mormon Metalmark butterflies at/or near the top of North Peak Rd, in Mt Diablo State Park. It was about 2:30PM.

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Yellow Starthistle Centaurea solstitialis

Observer

coffearobusta42

Date

June 25, 2014 09:10 AM PDT

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Anise Swallowtail Papilio zelicaon

Observer

coffearobusta42

Date

June 25, 2014 10:19 AM PDT

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Common Ringlet Coenonympha tullia

Observer

taj

Date

August 8, 2014 10:44 AM PDT

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Tarantula Hawks Genus Pepsis

Observer

taj

Date

August 8, 2014 12:21 PM PDT

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Raccoon Procyon lotor

Observer

taj

Date

August 7, 2014 09:39 PM PDT

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Northern Pacific Rattlesnake Crotalus oreganus ssp. oreganus

Observer

taj

Date

August 7, 2014 04:33 PM PDT

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Tarantulas Genus Aphonopelma

Observer

taj

Date

August 7, 2014 09:00 PM PDT

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California King Snake Lampropeltis californiae

Observer

taj

Date

August 7, 2014 02:40 PM PDT

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Mournful Duskywing Erynnis tristis

Observer

taj

Date

August 7, 2014 12:46 PM PDT

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What

hollyleaf redberry Rhamnus ilicifolia

Observer

robberfly

Date

August 16, 2014 02:37 PM PDT

Photos / Sounds

What

Mormon Metalmark Apodemia mormo

Observer

kueda

Date

August 16, 2014 03:52 PM PDT

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Thicket Hairstreak Callophrys spinetorum

Observer

kueda

Date

August 16, 2014 03:55 PM PDT

Description

The day's prize, though I was quite happy with the metalmarks, too.

Photos / Sounds

What

Mournful Duskywing Erynnis tristis

Observer

kueda

Date

August 16, 2014 03:37 PM PDT

Description

I think the white margin is just worn. Doesn't have hindwing spots of Propertius, too late for Pacuvius.

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Sagebrush Lizard Sceloporus graciosus

Observer

kueda

Date

August 16, 2014 03:15 PM PDT

Description

Many thanks to Hank for alerting me to the presence of this species up there! I'm sure I never would have noticed they weren't fence lizards on my own.

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Variegated Meadowhawk Sympetrum corruptum

Observer

kueda

Date

August 16, 2014 02:56 PM PDT

Description

Of course the only ode I was able to photograph to my satisfaction was one I already knew.