A new species in the genus Latuspina (Hymenoptera: Cynipidae) that induces galls on the leaves of Quercus variabilis Blume (Fagaceae) in China is described here as Latuspina jinzhaiensis Abe, Ide, Su, and Zhu, new species. The sexual generation gall of the new species is indistinguishable from that produced by L. abemakiphila Ide and Abe, which is induced on leaves of the same oak species in Japan. However, these two cynipid species can be distinguished based on the morphological characteristics of the propodeum of adult wasps. Moreover, differences in the partial sequence of the mitochondrial cytochrome c oxidase subunit I (COI) gene (18–19 of 658 bp) supports the morphological distinction between these two species. Although congeneric gall-inducing cynipids, as well as other gall-inducing insects such as gall midges, can typically be distinguished based solely on gall characteristics (e.g., shape and position on the plant) and host plant species, these two Latuspina species are an exception. Since the asexual generations of both species are currently unknown, finding asexual generation galls and adults in the future is considered necessary.

The mayfly fauna (Insecta: Ephemeroptera) in Iraq is very poorly known, with only four taxonomic studies from northern Iraq, two of them conducted more than 30 years ago. There are no published keys or guides for larval identification for that fauna. We conducted the fifth study in the Kurdistan Region of northern Iraq and created the first hierarchical checklist and larval key to the families, subfamilies, genera, and subgenera. The checklist and key were produced after reviewing the diagnostic morphological features for each of these taxonomic levels using references from Europe, West Asia, North Africa, the Caucasus, the Trans-Caucasus, and the Middle East. Finally, an illustrated identification key for nine families, nine subfamilies, 19 genera, and 13 subgenera is provided with illustrations prepared from specimens collected during this study. Based on the findings of this research, at least 24 species of mayflies inhabit the region.

The species in the genus Oncocephala known from Madagascar (Coleoptera: Chrysomelidae: Cassidinae: Oncocephalini) are reviewed. Three species are treated. A key to the species of Oncocephala known from Madagascar is provided.

Balcanocerus stellatus new species, occurring on Prunus (Amygdalus) dulcis (Mill.) D. A. Webb, is described from Elaziğ Province, Turkey. Balcanocerus amygdali () and B. amygdalicolus Dlabola, 1994 are reported for the first time from Turkmenistan, which are the first records for these species other than the type localities, and new records are provided for Balcanocerus balcanicus () from Elaziğ Province. A key to the males of the Palaearctic species of the genus Balcanocerus is provided.

Eight Heteroptera are reported for the first time from Florida, including five that represent new United States records: Brachyrhynchus membranaceus (Fabricus) (Aradidae), Eubule spartocerana Brailovsky (Coreidae), and the Miridae: Pycnoderes vanduzeei Reuter, Rhinacloa cardini Barber and Bruner, and Termatophyloides pilosulus Carvalho. Miridae representing new Florida records are Rhinacloa callicrates Herring, Sthenaridea maldonadoi Schuh and Schwartz, and Tropidosteptes quercicola Johnston. Color habitus images, a review of the pertinent literature, distribution records, known host information, and a diagnosis are furnished for each to aid in identification.

The wheel bug Arilus gallus Stål (Hemiptera: Reduviidae) is a native American assassin bug that has been recorded preying on insect pests of coffee in Colombia. To provide information to support conservation biological control using this species, life-history parameters for A. gallus were investigated. Arilus gallus was reared under laboratory conditions at Cenicafe, on Galleria mellonella Linnaeus (Lepidoptera: Pyralidae) as prey. All immature stages are described and illustrated for the first time. To obtain fecundity parameters, we used 1,818 eggs of the first generation (F₁) oviposited from 19 pairs of adults. The mean number of eggs per female was 182.53 ± 7.15, derived from a mean of 1.68 egg masses per female. The egg incubation period was 27.52 ± 1.15 days; egg hatch rate was 80.66%; mean duration from egg to adult was 112.46 ± 5.5 days; and rate of survival to the adult stage was 9.69%. The longevity of adults was 109.66 ± 10.41 days for females and 89.4 ± 8.74 for males. The five immature instars can be distinguished by differences in several anatomical features, including the progressive increase in body size and the color of the abdomen and legs.

The new genus Doyenellus Nabozhenko and Steiner (Coleoptera: Tenebrionidae, Helopini) is recognised and described, and includes three North American species native to southeastern USA. The type-species, Doyenellus cisteloides (Germar), new combination, is diagnosed and two new species, Doyenellus worthleyorum Steiner, new species and Doyenellus theodorei Steiner and Nabozhenko, new species are described. A key to the species is provided. Distribution and life history information of each species is discussed.

Six species of Eugnosta are recorded from China, including Eugnosta heterophallus Yinghui Sun, new species from Shandong Province. A key based on male genitalia is provided for the identification of the species. The adult and male genitalia of the new species are illustrated.

The purpose of this study was to analyze the composition and seasonality of the necrocolous Staphylinidae assemblage and necrophilous Staphylinidae ensemble collected with carrion traps in the Parque Estatal Bosque de Arce (PEBA), Talpa de Allende, Jalisco, Mexico. Five carrion traps baited with squid were placed during the months of July 2015 to June 2016. The necrocolous assemblage was composed of 3444 specimens belonging to 11 subfamilies, 12 tribes, nine subtribes, 25 genera, and 54 morphospecies. The necrophilous ensemble included 3389 specimens in six subfamilies, six tribes, four subtribes, 11 genera, and 18 morphospecies. Of these, 61.1% are predators and 38.9% are saprophages. Specimens belonging to the subfamily Aleocharinae were not incorporated in our analyses of the necrocolous assemblage nor the necrophilous ensemble. Small-sized species (1.5–4 mm) and medium-sized species (5–9 mm) have a greater abundance than large-size species (10–15.65 mm). Seasonality was a significant factor in the composition of the necrocolous assemblage and the necrophilous ensemble in PEBA. Lordithon obliquus (Sharp) and Xanthopygus rufipennis Sharp are recorded for the first time in the state of Jalisco.

Aleuropleurocelus kobei Sánchez-Flores and García-Ochaeta, new species is described from Guatemala on the host plant Casearia aculeata Jacq. (Salicaceae). Microphotographs of morphological structures of the puparia are included and a key to species in the oval to round-shaped group is given.

A new empidoid genus, Saigusamyia new genus and three new species (S. denningi new species, S. harkrideri new species, S. uvasensis new species) (Diptera: Empidoidea: Brachystomatidae) are described and illustrated. This new genus is related to a group of genera in the Trichopezinae, with fused epandrium and hypandrium and highly modified sperm pump. Adults of Saigusamyia are present primarily during the colder months in California (USA). The phylogenetic relationships of the Trichopeza genus-group are analyzed based on morphological data.

Diatraea postlineella , that we call the Guatemalan sugarcane borer, was described from Quirigua, Guatemala, based on one male specimen; the host was unknown. Recently, more specimens of D. postlineella from Guatemala were discovered and reared on sugarcane (Saccharum officinarum L.). Based on these specimens, morphological and molecular characters support the status of D. postlineella as a separate species. The DNA sequence from the COI barcode region and host plant are reported for the first time. Diatraea postlineella is closely related to D. crambidoides (Grote) and D. mitteri Solis. Photographs of the adults and their genitalia, a comparison of external characters, and a table of male and female genitalia characters to identify the three species are provided. A distribution map of the three species, which includes holotype localities and specimens used for the neighbor-joining cluster analysis, is provided.

The treehopper Micrutalis discalis (Walker), subfamily Smiliinae, tribe Micrutalini, was described in 1858 from Veracruz, Mexico. We report the first U.S. records from five counties in Arizona, describe the male and fifth instar for the first time, and redescribe the female. We collected nymphs and adults from desert mistletoe (Phoradendron californicum Nutt.; Viscaceae), which was hemiparasitic on trees and shrubs of the Fabaceae: yellow paloverde (Parkinsonia microphylla Torr.), velvet mesquite (Prosopis velutina Wooten), and catclaw acacia (Senegalia greggii [A. Gray] Britton and Rose). Our observations of nymphs in both late March to early May and in August suggest that M. discalis is bivoltine. We collected another adult, perhaps incidental, from the mistletoe Phoradendron villosum (Nutt.) Nutt. on Sonoran scrub oak (Quercus turbinella Greene; Fagaceae) and consider an adult from mule-fat (Baccharis salicifolia [Ruiz. and Pav.] Pers.; Asteraceae) an incidental occurrence.