A new species belonging to the genus Aporcella, collected from replanted coffee orchards in the Central Highland of Vietnam, is described and illustrated. Aporcella coffeae sp. nov. is characterized by its 3.29–3.81 mm long body, lip region offset by constriction and 21–23 µm broad, odontostyle 17.5–18.5 µm long and always shorter than lip region diameter, neck 752–889 µm long, pharyngeal expansion 485–600 µm long and occupying 62–68% of the total neck length, female genital system diovarian, uterus simple and 76–114 µm long, vulva transverse (V = 51–54), tail short and rounded conoid (41–55 µm, c = 65–84, c' = 1.0–1.2), and male absent. It is compared and distinguished from other large-sized Aporcella species, and a brief discussion of their relationships is provided.

The Neotropical genus Banyallarga Navás, 1916 is recorded from Brazil for the first time through the discovery of a remarkable new species. Banyallarga (Histricoverpa) tocantinensis sp. nov. is described and illustrated based on male adults collected in the Cerrado biome of Tocantins State, northern Brazil. The new species is most similar to Banyallarga nica Prather, 2004 from Nicaragua. It can be recognized mainly by the morphology of tergum X and the inferior appendages. Additionally, an updated identification key to the species of the subgenus B. (Histricoverpa) Prather, 2004 is presented.

Two new species of microcaddisflies from Panama are herein described and illustrated. These new species resulted from miscellaneous collections within the country, and are not associated with any specific project. The two new species include: Metrichia langosta and Zumatrichia pluma. The Republic of Panama now has 508 species distributed among 15 families and 56 genera.

The microcaddisfly genus Metrichia Ross is the second most species-rich within Ochrotrichiinae, comprising 141 species distributed mainly in the Central America. Recently, a large number of Metrichia species have been described for the Brazilian fauna; however, these species only are known from the Atlantic Forest, Caatinga, and Cerrado biomes. Aiming to fill these gaps, three new species of Metrichia are described and illustrated based on males collected in three protected and preserved areas of Brazilian Amazonia: Floresta Nacional do Tapajós, Parque Nacional Serra do Divisor and Parque Nacional Serra da Mocidade. Metrichia divisor sp. nov., Metrichia flinti sp. nov. and Metrichia myriachaeta sp. nov., can be recognized mainly by the type and position of setae on the preanal appendage and inferior appendage and by the morphology of the dorsolateral hook and phallic apparatus. Metrichia flinti sp. nov. is clearly a member of the M. aberrans Group based on the absence of pouches in abdominal segments and phallus with two spines subapically. However, neither M. divisor sp. nov. nor M. myriachaeta sp. nov. fits clearly in any of the current species groups in Metrichia, and hence they are not assigned to any of these species groups in this study. Finally, we provide a checklist of the Metrichia species from Brazil.

The ant fauna of the Riyadh Province, Kingdom of Saudi Arabia (KSA) was studied and reviewed based on literature and newly collected material. In total, 93 species were collected from Riyadh Province belonging to the genera Aenictus Shuckard, 1840; Brachymyrmex Mayr, 1868; Brachyponera Emery, 1900; Camponotus Mayr, 1861; Cardiocondyla Emery, 1869; Carebara Westwood, 1840; Cataglyphis Foerster, 1850; Crematogaster Lund, 1831; Dorylus Fabricius, 1793; Hypoponera Santschi, 1938; Lepisiota Santschi, 1926; Lioponera Mayr, 1879; Messor Forel, 1890; Monomorium Mayr, 1855; Nylanderia Emery, 1906; Paratrechina Motschoulsky, 1863; Pheidole Westwood, 1839; Plagiolepis Mayr, 1861; Solenopsis Westwood, 1840; Strumigenys Smith, 1860; Syllophopsis Santschi, 1915; Tapinoma Foerster, 1850; Tetramorium Mayr, 1855; Tetraponera Smith, 1852; and Trichomyrmex Mayr, 1865. Eight species are recorded for the first time from the KSA namely: Cataglyphis fisheri Sharaf & Aldawood, 2015; Nylanderia indica (Forel, 1894); Cardiocondyla bicoronata Seifert, 2003; C. minutior Forel, 1899; C. melana Seifert, 2003; C. yemeni Collingwood & Agosti 1996; Trichomyrmex lameerei (Forel, 1902); and Tr. oscaris (Forel, 1894). The total number of species now known from Riyadh Province has increased from 96 to 109. These belong to 25 genera and five subfamilies. The total number of species currently known from the Kingdom of Saudi Arabia (KSA) increased from 237 to 245. Notes on the ecology and biology of species are provided, when available. A new combination, Trichomyrmex barbatulum (Mayr, 1877) comb. nov. is proposed.

Nine species of the genus Messor Forel have been reported from Cyprus to date. However, based on our samples and examined type material we confirm the presence of only three species on the island. Messor bucephalus sp. nov. is described as a new species to science, while M. orientalis Emery and M. syriacus Tohmé are redescribed based on the material from Cyprus. Their distribution, biology and possible misidentification with other species of the genus are discussed.

The arboreal monogynous ant Dolichoderus quadripunctatus (L.) usually nests in very confined loci, and the colony consists of several to many nests, of which one or a few are queenright. Sexual offspring develop in queenless nests, though males and gynes in separate nests. The prevailing view of the colony dynamics maintains that males invade nests with gynes to mate there. New queenright nests are thought to develop such that a gyne remains in her natal nest or gynes are carried by workers to an offshoot nest without a queen. In our previous, two-season studies we could not find support for these claims, and the present, third-season observations corroborate our previous results: gynes leaving their nest either by flight or on foot are mainly unmated. It is not known how and where a gyne settles down and how a new queenright nest or a new colony originates. The peculiar habit of alate gynes to walk along worker trails, although not reported in other studies, is a regular feature of the colonies studied by us in Poland. We suggest that its function is close-range dispersal, which in a network of intersecting trails belonging to different colonies might allow the gyne to cross colony boundaries. Mating and reproducing outside own natal colony would enhance outbreeding in a species inherently exposed to inbreeding. Long-range dispersal by flight would effectively lead to outbreeding, given that the gyne succeeds to mate and found a colony. This topic is still unstudied, and it seems that a deeper understanding of the colony dynamics and dispersal of D. quadripunctatus requires population-genetic studies of carefully mapped colonies.

This paper is the seventh in a series of studies on the genus Habroloma Thomson from China. It presents the results of a collecting survey of the fauna in Zhejiang province, China. Twenty one species were collected and identified from thirty three localities. Detailed geographical distribution data are provided for all species from Zhejiang, of which six new species are described and illustrated: Habroloma (Parahabroloma) asperatum, sp. nov., H. (P.) flavoclavum sp. nov., H. (P.) latihumerum sp. nov., H. (P.) obscureollum sp. nov., H. (P.) parallepenne sp. nov. and H. (P.) sanzaopingum, nine species are regarded as new to Zhejiang Province.

Relationships of the anthicid subfamily Lagrioidinae are discussed in detail and evidence presented supporting treatment of this group as a distinct family, Lagrioididae, stat. nov., of Tenebrionoidea, unrelated to the family Anthicidae. Lagrioida rufula Fairmaire & Germain, 1860 is designated as the type species of Lagrioida Fairmaire & Germain, 1860. Two new Australian species, L. norfolkensis Lawrence & Ślipiński sp. nov. (Norfolk Island) and L. tasmaniae Lawrence & Ślipiński sp. nov. (Tasmania and Victoria) are described and illustrated. All remaining species are redescribed and key to the species is provided.

The cytochrome c oxidase subunit I (COI) gene has been used broadly as a DNA barcoding region or and relevant molecular marker for phylogenetic reconstruction. The exact region that has been standardized as a universal barcode is the one amplified by Folmer's primers HCO-LCO. Nevertheless, many other primers have been developed for the amplification of the COI gene, among them the Jerry-Pat primers. This paper aims to analyze the performance of different regions of the COI, in particular those amplified by Folmer's and Jerry-Pat primers, on different taxonomic levels by using specimens from a complex and homogeneous beetle family, Mordellidae Latreille, 1802. To achieve this goal, we used two different datasets: Jerry-Pat matrix included 48 sequences from specimens sampled in the field and 19 sequences from GenBank, whereas Folmer's matrix included 91 sequences from BOLD; representing 24 and 85 species respectively. Our results show different properties of both COI regions regarding GC content (3.7% lower in Jerry-Pat fragment), sequence length, interspecific divergence, evolutionary models, and saturation analyses. We also found that the two studied regions of the COI perform differently, showing notable differences in the topology of the reconstructed trees. Finally, a discussion of the pros and cons of each region is provided. This is a first glance at the molecular data of Mordellidae, where we provided a general picture of the evolutionary history of the family and included new sequences for Mediimorda Méquignon, 1946 and Stenalia Mulsant, 1856.

A new genus and species of wedge-shaped beetle of Eorhipidiini (Coleoptera: Ripiphoridae: Ripidiinae) is described from Cretaceous amber of Myanmar (‘Burmese amber’). It represents the only known fossil of this tribe. The species is remarkable for the combination of derived characters shared with the extant genus Pterydrias Reitter, 1895 (i.e., absence of tibial spurs, simplified antennae, and prolonged 4-segmented maxillary palpi) with recurved mandibles similar to those in the ancestral lineages Pelecotominae and Ptilophorinae. To accommodate this peculiar specimen a new genus and species Eodrias mandibularis gen. et sp. nov. are established. A key for all known species of the tribe, for which so far only males are known, is provided. In addition, the systematic position of fossil beetle Asiamordella furvis Hong, 2002 from Early Eocene Fushun amber (China), assigned originally to the family Mordellidae, is evaluated. Its placement within Mordellidae is refuted. Based on the set of characters given in the description it is suggested that the specimen may represent an unknown female morphotype of Ripidiinae and the tribe Eorhipidiini is a possible candidate. Discussion of the systematic position of the newly described genus is supported by a phylogenetic analysis including for the first time morphological characters of extant and fossil genera and larvae of all subfamilies of Ripiphoridae.

Reunionese species of Microlaemus Lefkovitch are reviewed and a new species with modified male head is described. Microlaemus xenocephalus sp. nov. is the only known species in the genus with a strong sexual dimorphism in which males have an expanded head. In addition, the new species can be readily distinguished from its congeners by the large body size (2.8–3.5 mm vs. less than 2.4 mm in length) as well as the form of the male aedeagus (very elongate aedeagus, with each parameral lobe bearing a large, sabre-shaped apical seta). The three distinctive species from Réunion Island (i.e., M. mirificus (Grouvelle), M. sulcifrons (Grouvelle), and M. xenocephalus sp. nov.) are diagnosed, illustrated, and compared to each other. Morphology of male genitalia is used for the first time for diagnostic purposes within the species mentioned above. Finally, the key to species from Réunion Island and Mauritius is updated, and an annotated species list of Microlaemus of the world is provided.

A new species, Stilobezzia (Stilobezzia) raula sp. nov. is described and illustrated from Brazil based on male adults, and four previously known species are redescribed: S. (S.) blantoni Lane & Forattini, 1956, S. (S.) macfiei Lane, 1947, S. (S.) pallescens Lane & Forattini, 1958 and S. (S.) paulistensis Lane, 1947. Stilobezzia (S.) pseudopunctulata Cazorla & Ronderos, 2012 is recognized as a junior synonym of S. (S.) kiefferi Lane, 1947. The distributions of S. macfiei and S. kiefferi are expanded.

Atrichopogon (Atrichopogon) albinensis Ingram & Macfie, A. (A.) mendozae I. & M., Forcipomyia (Forcipomyia) caliginosella Wirth, and F. (F.) zonogaster I. & M., are redescribed, photographed and illustrated, while the male of A. (A.) mendozae is described for the first time, from the study of type specimens in the Natural History Museum of London and freshly collected material. The studied species are compared with their most similar congeners, and new records for Argentina are also provided.