Washington County

Ecosystem Overview

The Washington County ecosystem supports 100 documented wildlife species across 94 taxonomic genera. Located in Washington County, Illinois, this area provides critical habitat with diverse natural communities. The location hosts 21 frequently observed species and 19 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Washington County Lake, Washington County hosts 0% more species diversity. This location ranks #2 for species diversity among 3 Washington County County natural areas, placing it in the 33th percentile for biodiversity.

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 3 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 3 locations

33th percentile for diversity

vs. Washington County Lake

+0% species diversity

Ecosystem Overview

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Biodiversity Highlights

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Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

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Most Common Species

Showing 20 most frequently observed species out of 100 total documented species.

Passer domesticus

House Sparrow

Very Common8 obs.

Drosophila suzukii

Spotted-wing drosophila

Very Common5 obs.

Oncopeltus fasciatus

Large Milkweed Bug

Very Common3 obs.

Harmonia axyridis

Harlequin ladybird

Very Common3 obs.

Polistes metricus

Very Common3 obs.

Erythemis simplicicollis

Eastern Pondhawk

Common3 obs.

Branta canadensis

Canada goose

Common3 obs.

Bicyrtes quadrifasciatus

Four-Banded Stink Bug Hunter Wasp

Common3 obs.

No image

Tetramorium tsushimae

Common3 obs.

Pachydiplax longipennis

Blue Dasher

Common3 obs.

Sitona hispidulus

Clover Weevil

Common2 obs.

Obrium maculatum

Occasional2 obs.

Ligyrus gibbosus

Carrot beetle

Occasional2 obs.

Bombus bimaculatus

Two-Spotted Bumble Bee

Occasional2 obs.

Myodocha serripes

Long-Necked Seed Bug

Occasional2 obs.

Udea rubigalis

Celery Leaftier Moth

Occasional2 obs.

Toxomerus marginatus

Syrphid Fly

Occasional2 obs.

Perithemis tenera

Eastern Amberwing

Rare2 obs.

Libellula incesta

Slaty Skimmer

Rare2 obs.

Notoxus murinipennis

Rare2 obs.

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Most Common Species

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Want the Complete Field Guide?

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Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Washington County. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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Download a professional PDF field guide featuring all the species found in Washington County. Perfect for outdoor adventures, education, and nature exploration.

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$6.99

Regional Comparison

Regional Ranking

100

Species Count

+85%

vs. Regional Average

Compared to 2 nearby locations in Washington County County, Illinois

Nearby Natural Areas

Okawville

Importance: 0.31

100 species

0% vs. current

Nashville

Importance: 0.30

8 species

+1150% vs. current

About This Comparison

These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Washington County County.

Regional Comparison

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Regional Ranking

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Species Count

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vs. Regional Average

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Nearby Natural Areas

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About This Comparison

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Regional Comparison

Regional Ranking

100

Species Count

+85%

vs. Regional Average

Compared to 2 nearby locations in Washington County County, Illinois

Nearby Natural Areas

Okawville

Importance: 0.31

100 species

0% vs. current

Nashville

Importance: 0.30

8 species

+1150% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 3 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 3 locations

33th percentile for diversity

vs. Washington County Lake

+0% species diversity

Most Common Species

Showing 20 most frequently observed species out of 100 total documented species.

Passer domesticus

House Sparrow

Very Common8 obs.

Drosophila suzukii

Spotted-wing drosophila

Very Common5 obs.

Oncopeltus fasciatus

Large Milkweed Bug

Very Common3 obs.

Harmonia axyridis

Harlequin ladybird

Very Common3 obs.

Polistes metricus

Very Common3 obs.

Erythemis simplicicollis

Eastern Pondhawk

Common3 obs.

Branta canadensis

Canada goose

Common3 obs.

Bicyrtes quadrifasciatus

Four-Banded Stink Bug Hunter Wasp

Common3 obs.

No image

Tetramorium tsushimae

Common3 obs.

Pachydiplax longipennis

Blue Dasher

Common3 obs.

Sitona hispidulus

Clover Weevil

Common2 obs.

Obrium maculatum

Occasional2 obs.

Ligyrus gibbosus

Carrot beetle

Occasional2 obs.

Bombus bimaculatus

Two-Spotted Bumble Bee

Occasional2 obs.

Myodocha serripes

Long-Necked Seed Bug

Occasional2 obs.

Udea rubigalis

Celery Leaftier Moth

Occasional2 obs.

Toxomerus marginatus

Syrphid Fly

Occasional2 obs.

Perithemis tenera

Eastern Amberwing

Rare2 obs.

Libellula incesta

Slaty Skimmer

Rare2 obs.

Notoxus murinipennis

Rare2 obs.

Want the Complete Field Guide?

Get all 100 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.

Premium field guide includes identification tips, seasonal patterns, and professional layout optimized for field use.