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What

Stinky Squid Pseudocolus fusiformis

Observer

treegrow

Date

July 23, 2016 10:46 AM EDT

Description

Pseudocolus fusiformis. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

What

Umbrella Liverwort Marchantia polymorpha

Observer

treegrow

Date

July 23, 2016 10:20 AM EDT

Description

Marchantia polymorpha. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

What

American Nursery Web Spider Pisaurina mira

Observer

treegrow

Date

July 23, 2016 11:24 AM EDT

Description

Pisaurina mira. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

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What

Tortricid Leafroller Moths Family Tortricidae

Observer

treegrow

Date

July 23, 2016 11:30 AM EDT

Description

Tortricidae sp. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

What

Crambid Snout Moths Family Crambidae

Observer

treegrow

Date

July 23, 2016 11:17 AM EDT

Description

Rock Creek Park, Washington, DC, USA.

Photos / Sounds

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What

Tiger Crane Flies Genus Nephrotoma

Observer

treegrow

Date

July 23, 2016 11:43 AM EDT

Description

Nephrotoma. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

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What

Tumbling Flower Beetles Family Mordellidae

Observer

treegrow

Date

July 23, 2016 10:58 AM EDT

Description

Mordellidae sp. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 23, 2016 11:54 AM EDT

Description

Clinidium sp. walking around out in the open, on the root of a downed log. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

What

Banded Net-Wing Beetles Genus Calopteron

Observer

treegrow

Date

July 23, 2016 11:59 AM EDT

Description

Calopteron sp. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 23, 2016 10:38 AM EDT

Description

Condylostylus scaber male with damaged wing. The second picture provides a clearer view of the yellow front coxa. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 23, 2016 11:39 AM EDT

Description

Condylostylus sp. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

What

Planthoppers Superfamily Fulgoroidea

Observer

treegrow

Date

July 23, 2016 12:19 PM EDT

Description

Fulgoroidea sp. nymph sitting on a clump of fungi. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Square

Observer

treegrow

Date

July 23, 2016 10:51 AM EDT

Description

Another fern ball.

Photos / Sounds

What

Cup Plant Silphium perfoliatum

Observer

treegrow

Date

July 23, 2016 10:11 AM EDT

Photos / Sounds

What

Dark Fishing Spider Dolomedes tenebrosus

Observer

treegrow

Date

July 16, 2016 03:10 PM EDT

Description

Dolomedes tenebrosus. Rock Creek Park, Washington, DC, USA.

Insects

Photos / Sounds

What

Insects Class Insecta

Observer

treegrow

Date

July 16, 2016 03:17 PM EDT

Description

Eggs attached to a moss sporophyte. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 16, 2016 03:15 PM EDT

Description

Stenoscelis brevis. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 16, 2016 02:42 PM EDT

Description

Clusiodes johnsoni. A male, based on the huge vibrissae. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 16, 2016 02:58 PM EDT

Description

Chymomyza amoena. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 16, 2016 03:41 PM EDT

Description

Eurymycter fasciatus. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 16, 2016 03:46 PM EDT

Description

Cylapus tenuicornis. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 16, 2016 03:46 PM EDT

Description

Cylapus tenuicornis. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

What

Eastern Tiger Swallowtail Papilio glaucus

Observer

treegrow

Date

July 16, 2016 01:45 PM EDT

Description

Papilio glaucus. Pinehurst Branch, Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Square

Observer

treegrow

Date

July 16, 2016 01:59 PM EDT

Description

Lichenomima sp. on a tulip poplar. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Square

Observer

treegrow

Date

July 16, 2016 02:04 PM EDT

Description

Phloeoxena signata. Rock Creek Park, Washington, DC, USA.

This one was running on the bark of a living tulip poplar, Liriodendron tulipifera. There was another one on the same tree and I saw an additional specimen a little further down the trail. I think these "rare" beetles are actually quite common in Rock Creek Park.

Photos / Sounds

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What

Flies Order Diptera

Observer

treegrow

Date

July 16, 2016 02:39 PM EDT

Description

Smaller than a Drosophila. I hope to find it again, so I can get some more angles. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

What

House Flies and Allies Family Muscidae

Observer

treegrow

Date

July 16, 2016 01:37 PM EDT

Description

Muscidae sp. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Observer

treegrow

Date

July 16, 2016 02:19 PM EDT

Description

Minettia magna. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Square

What

Non-biting Midges Family Chironomidae

Observer

treegrow

Date

July 16, 2016 01:24 PM EDT

Description

Chironomidae sp. Rock Creek Park, Washington, DC, USA.

Photos / Sounds

Square

Observer

treegrow

Date

July 16, 2016 02:32 PM EDT

Description

Pogonognathellus nigritus. Rock Creek Park, Washington, DC, USA.

Frans Janssens@www.collembola.org provided this information on Ashley's image: "The 'diamonds' effect is caused by the iridisation of cuplike depressions in the skin in which center a specialised sensilla (a long thin mechanoreceptive sense seta) is placed."

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