New paper!

Kim W. et al.: "Additions, corrections, and bibliographic issues on the Heteropteran fauna of Korea (Insecta: Hemiptera)".

We address issues of faunistic studies on Korean true bugs (Hemiptera: Heteroptera) and critically review the literature records on recently (2011–2024) reported species. Furthermore, 18 species in 11 families are newly reported from Korea: Cimicomorpha—Anthocoridae: Elatophilus (Elatophilus) nipponensis Hiura, 1966, Temnostethus (Temnostethus) gracilis Horváth, 1907; Miridae: Stethoconus takaii Nakatani & Yasunaga, 2018, Yamatofulvius miyamotoi Yasunaga, 2000; Reduviidae: Oncocephalus heissi Ishikawa, Cai & Tomokuni, 2006, Polytoxus fuscovittatus (Stål, 1860); Tingidae: Physatocheila nigrintegerrima Souma, 2019; Pentatomomorpha—Aradidae: Aradus unicolor Kiritshenko, 1913,
Aneurus (Aneurodes) taterasanus Shimamoto & Ishikawa, 2022, Neuroctenus quercicola Nagashima & Shono, 2003, Mezira pygmaea Hsiao, 1964; Cydnidae: Parachilocoris japonicus Lis, 1994; Lygaeidae: Arocatus rufipes Stål, 1872; Pachygronthidae: Pachygrontha similis Uhler, 1896; Pentatomidae: Niphe elongata (Dallas, 1851); Pyrrhocoridae: Dysdercus (Paradysdercus) evanescens Distant, 1902; Rhyparochromidae: Appolonius oblongus Tomokuni, 1995, Neolethaeus lewisi (Distant, 1883), of which five species are recorded based on photographic evidence. Eleven species are excluded from the Korean fauna based on review of literature records: Acanthosomatidae: Elasmucha signoreti Scott,
1874, Lindbergicoris gramineus (Distant, 1883); Aradidae: Brachyrhynchus taiwanicus (Kormilev, 1957), Daulocoris formosanus Kormilev, 1971, Mezira subtilis Josifov & Kerzhner, 1974; Miridae: Apolygus nigrovirens (Kerzhner, 1988), Neolygus lobatus (Linnavuori, 1963), Kasumiphylus ryukyuensis (Yasunaga, 1999), Tytthus parviceps (Reuter, 1890); Pentatomidae: Erthesina fullo (Thunberg, 1783), Plautia splendens Distant, 1900. Three species are reconfirmed from Korea: Geocoridae: Geocoris (Geocoris) proteus Distant, 1883; Rhyparochromidae: Caridops pseudadmistus Zheng, 1981; Veliidae: Halovelia septentrionalis Esaki, 1926.

https://mapress.com/zt/article/view/zootaxa.5636.1.3

New paper!

Pagola-Carte S.: "Two new species and a new genus of Miridae (Hemiptera: Heteroptera) from Toledo, central Iberian Peninsula".

Two new species and a new genus of true bugs (Hemiptera: Heteroptera) of the family Miridae are described from Toledo, central Iberian Peninsula and Spain. Dicyphus (Brachyceroea) guentheri n. sp. (Bryocorinae: Dicyphini) is most similar to D. (B.) geniculatus (Fieber, 1858) but it is clearly separated by distinguishing characters of external morphology and male and female genitalia. Bolivarcoris n. gen. parisae n. sp. (Orthotylinae: Halticini) shows an external resemblance to some species included in the genus Dimorphocoris Reuter, 1890 and to the monotypic Schoenocoris Reuter, 1890; however it shows a combination of characters (external morphology and male and female genitalia) which definitely separates it from them. Interestingly, in both species the pygophore of males is revealed as a provider of useful taxonomic characters. They were collected in the same geographic area of Toledo province, in the surrounding habitats of endorheic lagoons.

https://www.heteropterus.org/en/HREarticles?vid=43

New paper!

Milani D. et al.: "Variable organization of repeats and hidden diversity of XY sex chromosomes in Pentatomidae true Bugs (Hemiptera) revealed through comparative genomic hybridization".

Sex chromosomes have independently evolved in various species, displaying unique evolutionary patterns, including differentiation, degeneration, and repetitive DNA accumulation. Pentatomidae hemipterans are characterized by a highly conserved diploid number of 2n = 14 with a XX/XY sex chromosome system, i.e. 2n = 14, 12 A + XY. Thus, it represents an interesting group for investigating the reorganization of repeats in conserved karyotypes, i.e. the absence of large chromosomal rearrangements. Using comparative genomic hybridization (CGH) with male and female genomic DNAs (gDNA), this study examined a total of 25 Pentatomidae species to uncover repetitive DNA dynamics and their role in chromosome differentiation, especially sex chromosome differentiation. New karyotype data for nine species reinforces the chromosomal stasis in Pentatomidae for macro-chromosomal structure. However, significant variability in repetitive DNA patterns on autosomes and sex chromosomes has been revealed despite the karyotypic conservation. Autosomal signals varied in intensity and distribution, with some species exhibiting terminal enrichment of repeats, while others displayed dispersed patterns. Sex chromosomes showed distinct hybridization patterns, with the Y chromosome exhibiting more significant variability compared to the X. These findings emphasize the dynamic nature of sex chromosomes and suggest further studies combining genomic sequencing and cytogenetics to uncover sequences and the mechanisms behind their evolution.

https://link.springer.com/article/10.1007/s00412-025-00831-7