Zootaxa

**A revised checklist of the genus Eupanacra Cadiou & Holloway, 1989 (Lepidoptera: Sphingidae) from China based on morphological and phylogenetic analyses**

ZHUO-HENG JIANG — 2026-05-18

The taxonomy of the hawkmoth genus Eupanacra Cadiou & Holloway, 1989 (Lepidoptera, Sphingidae, Macroglossinae, Macroglossini) from China is reviewed based on differences of wing pattern, male and female genitalia, and phylogenetic relationships derived from analysis of DNA barcodes. Eupanacra tsekoui (Clark, 1926) stat. nov. is elevated to a full species. A new record of China, Eupanacra frena Swinhoe, 1892 is reported from Yingjiang, Yunnan. Distribution maps, biological notes and living records of Eupanacra from China are also given.

**A new Pristimantis (Anura: Strabomantidae) of the P. unistrigatus species group from open ombrophilous forests of Southwestern Amazonia**

ALEXANDER TAMANINI MÔNICO — 2026-05-18

In the present study, we describe a new species of Pristimantis inhabiting open ombrophilous forests of Southwestern Amazonia. We describe this new species combining mitochondrial (16S and COI) and nuclear (RAG1) loci, external morphology, bioacoustic and natural history data. The new species is phylogenetically related to other Southwestern Amazonian lowland species of the P. unistrigatus species group (P. croceoinguinis, P. lirellus, P. okmoi and P. carvalhoi). It differs from its closest relatives mainly by its body size (male SVL of 17.7–20.4 mm, n = 29; female SVL of 24.6–26.5 mm, n = 2) and the presence of tympanum, extensive tuberculation (i.e., scapular, ulnar, heels, tarsal and eyelid tubercles), tarsal folds and dentigerous processes of vomers. Moreover, the new species differentiates from its relatives by presenting a yellow groin and gray iris, and by its two types of advertisement calls, consisting of either by a single-note call with duration of 130–254 ms, with three well-defined harmonics, or in three-note call with duration of 421–459 ms, with a single harmonic. The new species is very inconspicuous in its natural habitat due to its small body size, dull coloration, low intensity call, short call activity at dusk (lasting about 20 minutes) and shy behavior. Although open ombrophilous forests of Southwestern Amazonia are still poorly studied, recent studies have revealed a great number of undescribed anuran species under their canopy. Concerningly, the region is the main western route for the expansion of the Amazonian arc of deforestation, which strongly threatens endemic amphibians.

**A new species of the forester moth genus Mimeusemia Butler, 1875 (Lepidoptera, Noctuidae, Agaristinae) from India with DNA barcode data**

APARNA SURESHCHANDRA KALAWATE — 2026-05-18

A new species of the genus Mimeusemia Butler, 1875 is described from India, based on integrative taxonomic approach, combining morphological and genital evidence supported by mt DNA barcode data. Superficially, the new species is reminiscent of Mimeusemia davidsoni Swinhoe, 1899 and Mimeusemia basalis (Walker, 1854) but can be readily distinguished from both by distinct phenotypical and genitalia characters, as well as phylogenetic position. Comprehensive morphological descriptions are provided, accompanied by images of adult specimens and genitalia. An updated checklist of species currently attributed to Mimeusemia is provided and their type localities are illustrated in a dot map.

A supplement to the Scolytinae and Platypodinae (Coleoptera: Curculionidae) faunas of Georgia and Kyrgyzstan

RADOSŁAW PLEWA — 2026-05-18

Bark beetles and pinhole borers of Georgia and Kyrgyzstan were surveyed between 2003 to 2025. Specimens were collected using pheromone traps baited with Acuwit, IAC Ecolure, Sexowit, Tomowit, and ethanol; 0.5-m-long logs exposed for bark beetle colonisation; direct hand collecting in the field; searches for potential feeding substrates; and rearing from infested host material. We present 51 faunistic records of bark beetles and pinhole borers, comprising 44 species from Georgia and seven from Kyrgyzstan. One taxon is newly recorded from Georgia: Pityophthorus pityographus cribratus. Finally, we provide complete checklists of bark beetles and pinhole borers recorded from Georgia (98 species) and Kyrgyzstan (34 species).

Taxonomic revision of Iolaus lalos Druce, 1896 and proposal of the I. lalos species group in the subgenus Argiolaus Druce, 1891 (Lepidoptera, Lycaenidae, Theclinae) with description of five new taxa

SZABOLCS SÁFIÁN — 2026-05-18

The conspecificity of Iolaus lalos lalos and I. lalos kigezi was doubted based on external characters. The examination of them, supplemented by genitalia characters and distribution patterns of a series of specimens tentatively identified as I. lalos lalos or I. lalos kigezi resulted in the recognition of I. kigezi stat. nov. as a distinct species, as well as four new species, I. ungujensis sp. nov., I. zimbabwensis sp. nov., I. tukuyu sp. nov. and I. rondoensis sp. nov. from the island of Zanzibar, from mountainous forests in Zimbabwe, and from Tanzania, all placed in the newly established “Iolaus lalos species group”. A further new species of different appearance, I. mabuensis sp. nov. from Mount Mabu of Mozambique proved to be a member of this species group, based on genitalia characters.

**Moderate molecular difference in phenotypically indistinguishable populations of Luciobarbus albanicus (Teleostei: Cyprinidae)**

JÖRG FREYHOF — 2026-05-18

The distribution of Luciobarbus albanicus is almost completely restricted to the Ionian Freshwater Ecoregion of western Greece, and exhibits a marked north–south phylogeographic split. We examined 27 COI sequences (635 bp) from different populations in the northern (Kalamas, Louros, Arachthos) and southern (Acheloos, Trichonis, Pinios) sections of the ecoregion to see if these groups represent distinct species. Maximum Likelihood analysis recovered two well-supported clades that matched the geographic groups. However, the average K2P genetic distance between them was only 1.36%, while the distances within each group were substantially low, i.e., 0.02% for the northern and 0.07% for the southern populations. A detailed comparison of morphometric and meristic data, including the number of lateral-line scales, circumpeduncular scales, fin-ray counts, colour patterns, and lip shapes, revealed considerable overlaps, and no clear or consistent differences. Even though the mitochondrial divergence hints at some level of population structure, the lack of consistent morphological differences suggests that the northern and southern populations of L. albanicus are best considered conspecific.

New species of Micracidini (Coleoptera: Curculionidae: Scolytinae) from Northern Argentina

SILVIA P. CÓRDOBA — 2026-05-18

Micracidini species from northern Argentina are described or redescribed. Hylocurus pilifrons Córdoba sp. nov., H. nodulosus Córdoba sp. nov., H. granulatus Córdoba sp. nov., Pseudothysanoes tucumani Córdoba sp. nov., P. jujuyensis Atkinson sp. nov., P. schedli Atkinson sp. nov. and P. spinosus Córdoba sp. nov. are described. Pseudothysanoes argentiniae (Schedl) is redescribed.

**Two new species of Isotopenola from a suburb of Melbourne, Australia (Collembola, Isotomidae)**

YATING ZHANG — 2026-05-18

To date, the genus Isotopenola Potapov, Babenko, Fjellberg & Greenslade comprises only five known species. In the present paper, two new species, i.e., Isotopenola chowni sp. nov. and Isotopenola hallasae sp. nov., are described from Endeavour Hills, Melbourne, Australia. Isotopenola chowni sp. nov. has a markedly large and variable number of tergal sensilla. It is similar to Isotopenola loftyensis (Womersley), but can be distinguished from the latter mainly by having equal sized ocelli and less chaetae on Ant. I and tibiotarsi. Isotopenola hallasae sp. nov. has a moderate number of tergal sensilla. It is similar to I. perterrens Greenslade & Potapov, but can be distinguished from the latter mainly by having less chaetae on Ant. I, tibiotarsi, and dens. A key to all species of Isotopenola is provided.

Anacroneuria (Plecoptera: Perlidae) from southern Brazil: new findings and a new species

LUCAS HENRIQUE DE ALMEIDA — 2026-05-18

Plecoptera (stoneflies) are aquatic insects strongly associated with clean, well-oxygenated freshwater systems, making them valuable indicators of environmental quality. In the Neotropical Realm, the genus Anacroneuria Klapálek, 1909 (Perlidae) is the most diverse, with nearly 380 described species. Here, we studied specimens of Anacroneuria from southern Brazil, describing a new species, Anacroneuria tororo sp. nov., from the states of Paraná and Santa Catarina, and reporting A. iporanga Froehlich, 2002 for the first time in Santa Catarina. Additional distributional records are also provided for A. flintorum Froehlich, 2002, A. petersi Froehlich, 2002, and A. plaumanni Jewett, 1959. Based on literature data and examined specimens, we compile a checklist of 28 Anacroneuria species currently known from southern Brazil. Our findings underscore the importance of continued sampling in this region, where new species are still being discovered and distribution ranges updated.

**A new species of Emurena Watson, 1975 (Lepidoptera, Erebidae, Arctiinae) from Northeast Atlantic Forest, with an updated key to Emurena species**

EDUARDO VASCONCELOS TAVARES — 2026-05-18

Emurena ritae Tavares sp. nov. is described from two Atlantic Forest remnants in northeastern Brazil based on morphological and molecular data. This newly discovered species reflects moth diversity in this historically underexplored region and underscores the relevance of continuing investigations in the Atlantic Forest in the course of ongoing biogeographical analyses and species surveys. An updated identification key for the genus Emurena is presented, along with taxonomic and biogeographical remarks that suggest the presence of additional, yet undescribed, cryptic species within the group.

**The white totara scale, Leucaspis podocarpi Green (Hemiptera: Coccomorpha: Diaspididae): a new continental record of an adventive species in North America**

NATALIA VON ELLENRIEDER — 2026-05-18

Erratum: HAIFENG HAN, XIAOJIN XUE, ZHISHENG ZHANG & CHEN SHAO (2026) Morphology and molecular phylogeny of a new ciliate, Hemiurosomoida sinica sp. nov. (Ciliophora, Hypotrichia). Zootaxa, 5750 (2): 241–250.

HAIFENG HAN — 2026-05-18