Species of Greatest Conservation Need

1279 species
Taxonomic Group
Federal Status
State Status
Endemic

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Species of Greatest Conservation Need (Updated: 01/31/2024)
Common Name Scientifc Name Taxonomic Group Federal Status State Status Global Rank State Rank Endemic General Habitat Type(s)
No Accepted Common Name Rhadine bullis Invertebrates Not Listed Not Listed GNR SNR False Caves/Karst
No Accepted Common Name Rhadine exilis Invertebrates LE Not Listed G3 S1 True Small, essentially eyeless ground beetle; karst features in north and northwest Bexar County
No Accepted Common Name Rhadine infernalis Invertebrates LE Not Listed G2G3 S1 True Small, essentially eyeless ground beetle; karst features in north and northwest Bexar County
No Accepted Common Name Rhadine insolita Invertebrates Not Listed Not Listed G1G2 S1 True Caves/Karst
No Accepted Common Name Rhadine noctivaga Invertebrates Not Listed Not Listed G1G2 S1 True Caves/Karst
Tooth Cave ground beetle Rhadine persephone Invertebrates LE Not Listed G1G2 S1 True Resident, small, cave-adapted beetle found in small Edwards Limestone caves in Travis and Williamson counties
No Accepted Common Name Rhadine reyesi Invertebrates Not Listed Not Listed GNR SNR False Caves/Karst
No Accepted Common Name Rhadine russelli Invertebrates Not Listed Not Listed G1G2 S1 True Caves/Karst
No Accepted Common Name Rhadine speca Invertebrates Not Listed Not Listed G2 S2 True Caves/Karst
No Accepted Common Name Rhadine subterranea Invertebrates Not Listed Not Listed G2 S2 True Caves/Karst
No Accepted Common Name Rhypasma n. sp. EGR 1 Invertebrates Not Listed Not Listed G1G2 S1 False Caves/Karst
Poling's hairstreak Satyrium polingi Invertebrates Not Listed Not Listed G3 S1 False Oak woodland with Quercus grisea as substantial component, probably also uses Q. emoryi; larvae feed on new growth of Q. grisea, adults utilize nectar from a variety of flowers including milkweed and catslaw acacia; adults fly mid May - Jun, again mid Aug - early Sept
No Accepted Common Name Seborgia hershleri Invertebrates Not Listed Not Listed G1G2 S2 True Caves/Karst
Texas emerald dragonfly Somatochlora margarita Invertebrates Not Listed Not Listed G2G3 S2 False East Texas pineywoods; springfed creeks and bogs; small sandy forested streams with moderate current
Huecos Mountains talus snail Sonorella huecoensis Invertebrates Not Listed Not Listed G1G2 S1? True Barren/Sparse Vegetation
Franklin Mountain talus snail Sonorella metcalfi Invertebrates Not Listed Not Listed G2 S1 False Terrestrial; bare rock, talus, scree; inhabits igneous talus most commonly of rhyolitic origin
No Accepted Common Name Sparbarus coushatta Invertebrates Not Listed Not Listed G1G2 SNR False Riverine, Riparian
No Accepted Common Name Spectralia prosternalis Invertebrates Not Listed Not Listed GNR S2 True Forest, Woodland
No Accepted Common Name Speocirolana hardeni Invertebrates Not Listed Not Listed G2G3 S2 False Caves/Karst
Sickled Cave Millipede Speodesmus falcatus Invertebrates Not Listed Not Listed GNR S2 True Caves/Karst
Ivy's Cave Millipede Speodesmus ivyi Invertebrates Not Listed Not Listed GNR S2 True Caves/Karst
Reddell's Cave Millipede Speodesmus reddelli Invertebrates Not Listed Not Listed GNR S3 True Caves/Karst
No Accepted Common Name Sphingicampa blanchardi Invertebrates Not Listed Not Listed G1 S1 False Woodland - hardwood; Tamaulipan thornscrub with caterpillars host plant, Texas Ebony (Pitheocellobium flexicaule) an important element
Manfreda giant-skipper Stallingsia maculosus Invertebrates Not Listed Not Listed G1 S1 False Most skippers are small and stout-bodied; name derives from fast, erratic flight; at rest most skippers hold front and hind wings at different angles; skipper larvae are smooth, with the head and neck constricted; skipper larvae usually feed inside a leaf shelter and pupate in a cocoon made of leaves fastened together with silk
Jerusalem cricket Stenopelmatus monahansensis Invertebrates Not Listed Not Listed GNR SNR False Barren/Sparse Vegetation