New species of stoneflies reveal insights into extinct Plecoptera fauna in Baltic amber, indicating rich biodiversity.
Three new stonefly species are described and illustrated from Eocene Baltic amber found in Lithuania: †Palaeopsole spinosa sp. nov. (family Leuctridae Klapálek, 1905), †Podmosta biloba sp. nov. (family Nemouridae Newman, 1853), and †Isoperla lituana sp. nov. (family Perlodidae Klapálek, 1909). The generic diagnosis of †Palaeopsole Caruso & Wichard, 2011 is also emended. These new fossils enhance the understanding of the extinct Plecoptera fauna in Baltic amber.
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Chen, Zhi-Teng (2025) studied this question.
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