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 Berginus n. sp. EGR 1 Invertebrates Not Listed Not Listed G1 S1 False Forest, Woodland
No Accepted Common Name Bicornucandona fineganensis Invertebrates Not Listed Not Listed GNR SU True Spring obligate. Known only from two springs. Finegan Springs in Val Verde County and Blue Hole Springs in Val Verde County. Fine scale habitat requirements unknown.
American bumblebee Bombus pensylvanicus Invertebrates Not Listed Not Listed G3G4 SNR False Grassland, Savanna/Open Woodland
Sonoran bumblebee Bombus sonorus Invertebrates Not Listed Not Listed GU SU False Grassland, Savanna/Open Woodland
No Accepted Common Name Bombus variabilis Invertebrates Not Listed Not Listed G1G2 SNR False Grassland, Savanna/Open Woodland
No Accepted Common Name Brackenridgia reddelli Invertebrates Not Listed Not Listed G2G3 S2? True Caves/Karst
No Accepted Common Name Brucita marmorata Invertebrates Not Listed Not Listed GNR SNR False Forest, Woodland
No Accepted Common Name Cacostola lineata Invertebrates Not Listed Not Listed GNR SNR False Grassland, Shrubland
No Accepted Common Name Caecidotea bilineata Invertebrates Not Listed Not Listed G2G3 S1 True Spring obligate. Caecidotea bilineata is known only from non-cave groundwater habitats in deposits of Cretaceous age. It is presumably a phreatobite. Fine scale habitat requirements unknown.
No Accepted Common Name Caenis arwini Invertebrates Not Listed Not Listed G1G3 S2? False West Texas; mayflies distinguished by aquatic larval stage; adult stage generally found in shoreline vegetation
Purgatory Cave shrimp Calathaemon holthuisi Invertebrates Not Listed Not Listed G1G2 S1 True Last known collection was in San Marcos, Hays Co. (Ezell's Cave) (Reddell 1994).
No Accepted Common Name Calleida fimbriata Invertebrates Not Listed Not Listed GNR S2 False Grassland, Shrubland, Woodland
No Accepted Common Name Callipogonius cornutus Invertebrates Not Listed Not Listed GNR SNR False Forest, Woodland
scarce streaky-skipper Celotes limpia Invertebrates Not Listed Not Listed G3 S2? False Washes and gullies in mountains (Burns, 1974; Opler, 1999). Scott (1986) characterizes habitat as open woodland and desert scrub.
No Accepted Common Name Cenophengus pallidus Invertebrates Not Listed Not Listed GNR SNR False Forest, Woodland
Boca Chica flea beetle Chaetocnema rileyi Invertebrates Not Listed Not Listed GNR S3 True Grassland, Shrubland, Woodland
No Accepted Common Name Chalcodermus semicostatus Invertebrates Not Listed Not Listed GNR SNR False Forest, Woodland
Morse's net-spinning caddisfly Cheumatopsyche morsei Invertebrates Not Listed Not Listed G1G3 S1 False Lotic systems, but specifics unknown
Holzenthal's philopotamid caddisfly Chimarra holzenthali Invertebrates Not Listed Not Listed G1G2 S1 False Trinity River basin
No Accepted Common Name Chitrella elliotti Invertebrates Not Listed Not Listed G1G2 S1 True Caves/Karst
No Accepted Common Name Chitrella major Invertebrates Not Listed Not Listed G1G2 S1 True Caves/Karst
Samalayuca Dune grasshopper Cibolacris samalayucae Invertebrates Not Listed Not Listed G2? S2? False Grassland
Cazier's tiger beetle Cicindela cazieri Invertebrates Not Listed Not Listed G2 S1 True Most tiger beetles are active, usually brightly colored, and found in open, sunny areas; adult tiger beetles are predaceous and feed on a variety of small insects; larvae of tiger beetles are also predaceous and live in vertical burrows in soil of dry paths, fields, or sandy beaches
swift tiger beetle Cicindela celeripes Invertebrates Not Listed Not Listed G2G4 S2? False Although Pearson et al. (2006) mention "open forest paths", the word forest is probably being used loosely and probably refers to some sort of xeric, scrubby oak woodland. This tiger beetle is essentially a grassland dweller that inhabits both natural dry prairie and anthropogenic dry grassland. In any woodland context, presumably only open patches are used.
No Accepted Common Name Cicindela fulgoris albilata Invertebrates Not Listed Not Listed G4T3T4 S2 False Barren/Sparse Vegetation