New paper!

Taszakowski A. et al.: "A new genus and species of Deraeocorinae
(Hemiptera: Heteroptera: Miridae) from Brunei Darussalam
with emphasis on the stridulatory mechanism"

Emnicoris silesianus Taszakowski, Kim & Gierlasiński gen. et sp. nov. (Deraeocorinae: Deraeocorini) is described from Brunei Darussalam. Morphological characters of the new genus and species are provided with photographs and SEM micrographs. Male and female genital structures are presented. Additionally, the uniqueness of its morphological features is discussed in the context of the tribal placement of this new genus. The stridulatory device (embolial stridulitrum and metafemoral plectra) of the new taxon is documented. The unique stridulation mechanisms of Surinamellini (Deraeocorinae) are reported and described for the first time.

https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/3055

New paper!

Qiao M. et al.: "Taxonomy, phylogeny, and biogeography of the Oriental subfamily Perittopinae China & Usinger, 1949 (Hemiptera: Heteroptera: Veliidae)"

The collision of the Indian and Eurasian plates during the Eocene represents a major tectonic shift that significantly altered biotic dynamics and promoted species diversification across the Oriental region. To explain the diversification of taxa from the Indian subcontinent into Southeast Asia, two principal hypotheses have been proposed: the “Biotic-ferry” and “Step-stone” models. The subfamily Perittopinae, a lineage of semi-aquatic bugs comprising a single genus and 20 extant species, provides an ideal system for testing these hypotheses due to its disjunct distribution spanning the Indian subcontinent and Southeast Asia. This study conducted a comprehensive taxonomic analysis of the entire subfamily, incorporating newly defined morphological characters and multilocus phylogenetic analyses to reconstruct evolutionary relationships and historical biogeography. Morphological and phylogenetic evidence confirmed the monophyly of Perittopinae and supported the establishment of three new genera—Indoperittopus gen. nov., Pachyperittopus gen. nov., and Falciperittopus gen. nov.—in addition to four new species and four new combinations. Biogeographic reconstructions indicated a southern Indian origin, with initial diversification potentially occurring during the mid-Paleocene, coinciding with the major phases of the India-Eurasia collision. Subsequent range expansion over marine barriers facilitated colonization of the northern Sunda Shelf, consistent with the “Step-stone” dispersal mechanism. Later northward expansion from the southern Sunda Shelf during the early Miocene triggered further diversification of the genus Perittopus within the Indo-China Peninsula. These findings advance understanding of Perittopinae systematics, phylogeny, and historical biogeography, identifying the northward drift of the Indian plate and its eventual collision with Eurasia as catalysts of diversification within this semi-aquatic lineage.

https://www.zoores.ac.cn/article/cstr/32248.14.zr.2025.057

New paper!

Falagiarda M. et al.: "Ecological dynamics of true bugs (Hemiptera: Pentatomidae, Acanthosomatidae, and Coreidae) and associated egg parasitoids (Hymenoptera) in an Alpine region of Italy"

True bugs (Hemiptera: Acanthosomatidae, Coreidae, and Pentatomidae) include harmful crop pests affecting global agriculture, with different species displaying distinct optimal conditions for development and using different habitats. Over a 2-year period, this research investigates how habitat variation and altitude can influence the species composition of true bugs and their egg parasitoids in South Tyrol (North Italy), unveiling different trends in their population and diversity across habitats: apple orchards, urban areas, and forests. A total of 25 true bug species were sampled. Urban environments hosted the highest bug abundance, predominantly driven by the invasive Halyomorpha halys, while forests showed a higher prevalence of native species such as Pentatoma rufipes and Palomena prasina. Altitude significantly influenced species composition, with H. halys and P. rufipes abundance negatively and positively correlated with altitude, respectively. A total of 12 parasitoid species (Hymenoptera: Eupelmidae, and Scelionidae) emerged from the field-collected bug eggs, including the exotic Trissolcus japonicus, predominantly associated with H. halys in urban areas. Native parasitoids exhibited higher parasitism rates on native bug species, indicating co-evolutionary relationships. The results give an insight into the ecological dynamics of local true bug species and their egg parasitoids, and highlight the value of natural and urban areas for conserving both hemipteran and parasitoid species richness and abundance.

https://www.cambridge.org/core/journals/bulletin-of-entomological-research/article/ecological-dynamics-of-true-bugs-hemiptera-pentatomidae-acanthosomatidae-and-coreidae-and-associated-egg-parasitoids-hymenoptera-in-an-alpine-region-of-italy/14799C22A04EA99D9D65F3946AF4DA23