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)
northern threeband Humboldtiana ultima Invertebrates Not Listed Not Listed G2 S2 False Leaf litter in mesic canyons of limestone mountains; in soil, under rocks
Clear Creek amphipod Hyalella texana Invertebrates Not Listed T G1 S1 False Hyallela spp. cling to vegetation and burrow in sediments of permanent freshwater impoundments; deposit-feeders, limited to uppermost layer of the sediment; lay eggs in marsupium of females where sperm has been deposited
purse casemaker caddisfly Hydroptila melia Invertebrates Not Listed Not Listed G2G3 S2? False Riparian, Riverine
No Accepted Common Name Hydroptila ouachita Invertebrates Not Listed Not Listed G1G2 S1 False Lotic systems, but specifics unknown
No Accepted Common Name Hyperaspis rotunda Invertebrates Not Listed Not Listed GNR SNR False Grassland, Shrubland
No Accepted Common Name Ingolfiella n. sp. Invertebrates Not Listed Not Listed G1G2 S1 False Caves/Karst
No Accepted Common Name Islandiana unicornis Invertebrates Not Listed Not Listed G2G3 S2 False Caves/Karst
grande stripetail Isoperla jewetti Invertebrates Not Listed Not Listed G1 S1 False Originally described from El Paso Co., Texas from specimens collected in 1939.
arrowhead stripetail Isoperla sagittata Invertebrates Not Listed Not Listed G1 S1 True This species is known from a single site in southeast Texas (Newton Co.) (Stark et al. 2012; Stark 1996).
No Accepted Common Name Lachnodactyla texana Invertebrates Not Listed Not Listed GNR SNR False Forest, Woodland
Guadalupe fatmucket Lampsilis bergmanni Invertebrates PE T G1 SNR True Reported to occur in slow to moderate current in sand, mud, and gravel substrates among large cobble, boulders, bedrock ledges, horizontal cracks in bedrock slabs, and macrophyte beds. Has also been observed inhabiting the roots of cypress trees and vegetation along steep banks. Reported in lakes at Kerrville, Texas, which suggests it may occasionally persist in some impoundment conditions (Robert G. Howells, personal communication). (Mussels of Texas, 2020)
Texas fatmucket Lampsilis bracteata Invertebrates PE T G1 S1 True Reported to occur in slow to moderate current in sand, mud, and gravel substrates among large cobble, boulders, bedrock ledges, horizontal cracks in bedrock slabs, and macrophyte beds. Has also been observed inhabiting the roots of cypress trees and vegetation along steep banks. Past authorities have reported this species intolerant of reservoir conditions but recent surveys suggest it may persist in some impoundment conditions (Howells 2010c; Randklev et al. 2017b). [Mussel of Texas 2019]
sandbank pocketbook Lampsilis satura Invertebrates Not Listed T G2? S1 False Occurs in small streams to large rivers in slow to moderate current in sandy mud to sand and gravel substrate. Can occur in a variety of habitats but most common in littoral habitats such as banks or backwaters or in protected areas along point bars (Randklev et al. 2013b; Randklev et al. 2014a; Troia et al. 2015). [Mussels of Texas 2019]
No Accepted Common Name Latineosus cibola Invertebrates Not Listed Not Listed G1G2 SNR False This species was recently described from Texas in only two localities (a creek and a water treatment plant on a major river) in Val Verde and Webb Cos. (Sun and McCafferty, 2008).
No Accepted Common Name Leucohya texana Invertebrates Not Listed Not Listed G1G2 S1 True Caves/Karst
No Accepted Common Name Limnephilus adapus Invertebrates Not Listed Not Listed G1 S1 False Riparian, Riverine
sage sphinx moth Lintneria eremitoides Invertebrates Not Listed Not Listed G2 S1? False Desert, grassland; sandy prairie or desert with sage; caterpillars feed on leaves of sage; adults emerge late spring or summer, but little information available; immatures develop directly to the pupal stage probably in 5-7 weeks, and pupae overwinter underground
No Accepted Common Name Lirceolus bisetus Invertebrates Not Listed Not Listed G1G2 S1 True Caves/Karst
No Accepted Common Name Lirceolus cocytus Invertebrates Not Listed Not Listed GNR S1 False Caves/Karst
No Accepted Common Name Lirceolus nidulus Invertebrates Not Listed Not Listed GNR S2S4 False Caves/Karst
Texas troglobitic water slater Lirceolus smithii Invertebrates Not Listed T G1G2 S1 True Subaquatic, subterranean obligate, aquifer.
No Accepted Common Name Loberus ornatus Invertebrates Not Listed Not Listed GNR SNR False Forest, Woodland
No Accepted Common Name Lymantes nadineae Invertebrates Not Listed Not Listed GNR S2 True Caves/Karst
No Accepted Common Name Macrotera parkeri Invertebrates Not Listed Not Listed GNR SNR False Grassland, Shrubland
No Accepted Common Name Macrotera robertsi Invertebrates Not Listed Not Listed GNR SNR False Grassland, Shrubland