Hidden invaders: intraspecific cryptic invasion and hybridization of Dolichoderus thoracicus (Hymenoptera: Formicidae) in Taiwan.

Biological invasions pose substantial threats to global biodiversity, agriculture, and ecological stability. Among these, intraspecific cryptic invasions, characterized by the spread of nonnative genotypes within a species, present unique challenges for detection and management. Despite the well-documented influence of invasive ants on ecosystems, instances of intraspecific cryptic ant invasions have rarely been documented.

New combinations and synonymies in the weevil genus Lyterius Schnherr (Coleoptera, Curculionidae), with a conspectus of historical works on Daldorffs Sumatran beetles.

In preparation for a future taxonomic revision, we explore provenance, collectors, original owners and current repositories of the type material for three available genus-group names, Lyterius Schnherr, 1844, Barisoma Motschulsky, 1863 and Plaxes Pascoe, 1885, which have been applied to a group of small, relatively flat weevils associated with Pandanaceae. Lectotypes are designated for Rhynchaenus musculus Fabricius, 1802 and Plaxes impar Pascoe, 1885. The lectotype of Rh.

Museomics unveil systematics, diversity and evolution of Australian cycad-pollinating weevils.

Weevils have been shown to play significant roles in the obligate pollination of Australian cycads. In this study, we apply museomics to produce a first molecular phylogeny estimate of the Australian cycad weevils, allowing an assessment of their monophyly, placement and relationships. Divergence dating suggests that the Australian cycad weevils originated from the Late Oligocene to the Middle Miocene and that the main radiation of the cycad-pollinating groups occurred from the Middle to the Late Miocene, which is congruent with the diversification of the Australian cycads, thus refuting any notion of an ancient ciophilous system in Australia.

Revisiting the Fossils from Mesozoic and Cenozoic Amber Deposits (Coleoptera: Lymexylidae).

The fossils once assigned to Raractocetus Kurosawa from the Mesozoic and Cenozoic amber deposits differ from extant Raractocetus in the longer elytra, the more strongly projecting metacoxae, and the hind wing with vein 2A forked. Thus, these fossils should be removed from Raractocetus. Cretoquadratus engeli Chen from Kachin amber appears to be conspecific with R.

New species of Vetuprostomis from mid-Cretaceous amber of northern Myanmar (Coleoptera: Tenebrionoidea: Prostomidae).

Two new species of the prostomid genus Vetuprostomis Engel Grimaldi (Coleoptera: Tenebrionoidea: Prostomidae), V. angularis Li Cai sp. nov.

Taxonomic Revision of the Genus Zimmerman, 1994 (Coleoptera: Curculionidae: Molytinae), the -Pollinating Cycad Weevils in Australia, with Description of a New Species and Implications for the Systematics of .

The Australian endemic weevils of the genus Zimmerman, 1994 (Curculionidae: Molytinae: group), comprising two species, (Lea, 1929) and (Lea, 1929), are highly host-specific and the only known pollinators of cycads, which comprise two CITES-protected species restricted to Tropical Queensland in Australia. In the present study, the taxonomy of is reviewed, a lectotype for the name Lea, 1929 is designated and a new species associated with the population in the McIlwraith Range is described as sp. n.

Boegeriella nom. nov. (Monogenoidea: Dactylogyridae) for Walteriella Mendoza-Palmero, Mendoza-Franco, Acosta & Scholz, 2019, a junior homonym of Walteriella Kazantsev, 2001 (Coleoptera: Cantharidae).

Walteriella Mendoza-Palmero, Mendoza-Franco, Acosta & Scholz, 2019 was found to be a junior homonym of Walteriella Kazantsev, 2001 (Coleoptera: Cantharidae), also known as soldier beetles, and is replaced by Boegeriella nom. nov. (Dactylogyridae).

Ultramorphological Characteristics of Pic (Coleoptera: Ptinidae) and a New Species of Westwood (Hymenoptera: Bethylidae): A Book-Boring Beetle and Its Natural Enemy in Taiwan.

Libraries are invaluable resources, documenting significant events that have shaped human history. However, the preservation of old books is severely threatened by insects commonly referred to as bookworms. In this study, a sample of infested books in a historic library in Taiwan was randomly selected and examined.

Cephalomalthinus simplicicornis (Wittmer, 1993) rev. stat. et comb. n.: a resurrected soldier beetle (Coleoptera, Cantharidae) from Taiwan based on morphological and molecular data.

The genus Cephalomalthinus Pic, 1921 is a diverse group of soldier beetles known from East Asia, with modifications on the male antennae, which are traditionally used for species delimitation. However, antennae are uniform in some Cephalomalthinus groups, thus making species identification difficult. In this study, both morphological and molecular data are applied to solve the generic classification and species status of Micropodabrus simplicicornis Wittmer, 1993, which was recently synonymized with Cephalomalthinus formosanus (Pic, 1910).

Contribution to the knowledge of the genus Omineus Lewis, 1895 in Taiwan, with description of two new species (Coleoptera, Mycteridae, Eurypinae).

The fauna of Mycteridae Blanchard, 1845 in Taiwan is small, with only two documented species. In the present paper, two new species of Omineus Lewis, 1895 are described: O. taiwanensis sp.

Redescription of a wall crab spider species from Taiwan: Siamspinops formosensis (Kayashima, 1943) comb. nov., with the first description of males and taxonomic notes (Araneae: Selenopidae).

The wall crab spider Selenops formosensis Kayashima, 1943 was described from three females collected from northern Taiwan (Kayashima 1943a), but subsequently referred to as S. formosanus and S. formosansis in an illustrated handbook on Taiwanese spiders written by the same author (Kayashima 1943b).

Omophorus (Sinomophorus) wallacei: a new weevil from Borneo highlights the enigmatic Ethiopian-Oriental disjunct distribution (Coleoptera, Curculionidae, Molytinae).

In the present study we describe a new species of the genus Omophorus, O. (Sinomophorus) wallacei sp. nov.

Taxonomic notes on the genus Protanilla (Hymenoptera: Formicidae: Leptanillinae) from Taiwan.

A new species of Protanilla Taylor, 1990, P. jongi sp. nov.

Description of the mature larva of Pseudopyrochroa depressa (Pic) (Coleoptera: Pyrochroidae: Pyrochroinae), with comparison to other Taiwanese Pseudopyrochroa.

Field collections and rearing has established an association between the larva and adult of the Taiwanese Pseudopyrochroa depressa. Larvae were collected from beneath bark of the exposed portions of a dead, decaying log in a mesic montane forest and successfully reared to the adult stage. The mature larva is described and salient features are illustrated and compared to other known pyrochroid larvae from Taiwan.

Descriptions of the mature larvae for two species of Pseudopyrochroa from Taiwan (Coleoptera: Pyrochroidae: Pyrochroinae), with notes on their natural history.

Field collections and rearing have established the first species-level associations for larvae of Pyrochroidae from Taiwan. Larvae of Pseudopyrochroa carinifrons and Pseudopyrochroa fainanensis were collected from beneath bark and in coarse, decaying woody debris of dead logs and successfully reared to the respective adult stages. The mature larvae are described and salient features are illustrated.

Review of the genus Stenothemus Bourgeois from Taiwan, with description of three new species (Coleoptera: Cantharidae) and additional distributional records of previously known species.

The genus Stenothemus Bourgeois from Taiwan is reviewed, with description of three new species: S. lupus sp. nov.

A new species of Synchroa Newman from China (Coleoptera: Synchroidae).

The family Synchroidae Lacordaire, 1859 is a small group of beetles with an elongate, tapered, and slightly flattened body and brownish to black coloration. Members exhibit morphological similarity to some genera of Melandryidae, but can be distinguished based on larval morphology and the unmodified apical maxillary palpomeres. They are widely distributed throughout the Oriental, Palaearctic and Nearctic regions and possess the highest species diversity in Eastern Asia (Nikitsky 1999; Hsiao 2015).

Two new species of Cyanopenthe Nikitsky from Taiwan (Coleoptera, Tetratomidae, Penthinae).

Two new species of Cyanopenthe Nikitsky, 1998 are described from Taiwan, under the names of Cyanopenthe taiwana sp. nov. and Cyanopenthe leei sp.

Description of two new species of the genus Stenothemus from Taiwan (Coleoptera: Cantharidae).

Two new species of the genus Stenothemus Bourgeois are described from Taiwan, under the names of S. seediq sp. nov.