A new species of Alloscopus Börner, 1906 (Orchesellidae: Heteromurinae), A. arborealis sp. nov., is herein described from Mt. Makiling, Laguna, Philippines. The new species is distinct from its blind congeners by the combination of: 7+7 macrochaetae on head ‘An’ series and 1+1 on ‘M’ series; 13+13 macrochaetae on thorax II (vs. 9–12) and 7+7 central on thorax III (vs. 6+6); absence of the microsensilla on abdomen I; abdomen IV with four sensilla (vs. three); and ventral tube with a small number of chaetae on its posterior face (4–5 vs. 11–23) and lateral flap (7 vs. 9–16). The complete body chaetotaxic pattern of the new species and a revised key to the world fauna of Alloscopus are also provided.

For the years 1990–2023, we compile a list of adventive arthropods found in situations indicating establishment in Florida, as recorded by the Florida Department of Agriculture and Consumer Services, Division of Plant Industry (FDACS-DPI) through various publications and other official media outlets. As the center for regulatory entomology in Florida with a strength for arthropod identification in the southeastern United States, FDACS-DPI collaborates with multiple regional agencies (government, university, and private) to find and recognize adventive taxa in the region. These collaborating agencies all have a common goal to respond rapidly with any regulatory or mitigative actions needed to manage newly discovered invasive pests. The list presented here contains 450 adventive species of arthropods, 291 (64.7 %) of which are new Continental United States or Western Hemisphere records, and 162 (36.0 %) of which are considered invasive pests. Hemiptera (152 species) had the most species, followed by Coleoptera (75 species), the combined mite orders (71 species), and Lepidoptera (53 species). These data are compared to other states (Hawaii and California) which also have high numbers of adventive species, noting trends in total numbers for these different regions by decade, starting in 1900. Reasons for the apparent increase of adventive species into Florida over recent decades are discussed. Each of the 450 species has a brief account containing references to the original documentation of the record, suspected region of origin, and comments on its status, hosts, or recent history in Florida. We hope these data foster further work on adventive arthropods in Florida.

In turfgrass systems, nematicides are a valuable tool for managing plant-parasitic nematode populations, but few studies have examined non-target nematicide effects on arthropods. Our study evaluated effects of turfgrass nematicide formulations of abamectin (Divanem SC), fluopyram (Indemnify), furfural (MultiGuard Protect EC), and fluensulfone (Nimitz Pro G) on arthropod populations in bermudagrass (Cynodon spp.; Poaceae). A randomized block design was used with 5 replications of the 4 nematicide treatments and an untreated control. Plots were 6 m2 with 0.6 m untreated borders between adjacent plots. Data were collected from 1.5 m2 subplots located in the center of the treatment plots. Nematicides were applied at labeled rates every 4 wk as a summer treatment program from 7 Jun to 30 Aug 2016 and from 24 Apr to 18 Jul 2017 at the University of Florida Plant Science Research and Education Unit in Citra, Florida, USA. Samples were collected before treatment and at 2 d, 14 d, 56 d, and 238 d after the final treatment. Data from each nematicide treatment were compared to the untreated data at each sample date using analysis of covariance with initial population counts serving as the covariate. Abamectin treatments significantly increased fungivore mite abundance relative to the untreated control at 2 sampling dates in 2016 and 3 sampling dates in 2017. Abamectin also decreased collembolan abundance significantly at 2 sampling dates in 2017. Fluopyram increased predatory mite abundance significantly at 3 sampling dates in 2016; decreased collembolan abundance significantly at 4 sampling dates in 2017; and significantly increased phytophagous insect abundance at 2 dates in 2017. Furfural and fluensulfone had low impacts on arthropod abundance. The results of this study suggest nematicides can impact arthropods in bermudagrass, which could affect organic matter decomposition and nutrient cycling processes.

Plutomurus jordanai sp. nov. from Zeda Kvilishori Cave (Tskaltubo Municipality, Imereti region, Western Georgia) is described, illustrated and differentiated from other morphologically similar species‒‒P. kelasuricus Martynova, 1969 and P. eristoi Barjadze, Baquero, Soto-Adames, Giordano & Jordana, 2016. In addition, morphological characters omitted or erroneously provided in the original description of Plutomurus birsteini Djanashvili & Barjadze, 2011 are described and illustrated from the specimen sampled in the type locality‒‒Sakishore Cave (Racha region, Western Georgia). An identification key to the species of the genus Plutomurus reported from the Caucasus is presented. A list of the invertebrate communities for Zeda Kvilishori and Sakishore caves is provided.

The Florida State Collection of Arthropods (FSCA) is one of the top insect collections in the United States with in excess of eight million curated specimens and significant amounts of materials in bulk collections and other unprocessed samples. The subphylum Myriapoda currently comprises approximately 17,500 species in the four classes Diplopoda, Chilopoda, Symphyla, and Pauropoda. The FSCA houses type material in the Diplopoda orders Callipodida, Chordeumatida, Glomeridesmida, Julida, Polydesmida, Polyzoniida, Siphonophorida, Spirobolida, and Spirostreptida. This catalog documents the FSCA primary type material for 74 species in 45 genera in 25 families and nine orders within Diplopoda.

An effective surveillance method for invasive insect pests is critical for timely detection and management. This study explores the effectiveness of eight active sampling methods for detecting the presence of the two-spot cotton leafhopper (Amrasca biguttula (Ishida) (Hemiptera: Cicadellidae)), a newly emerging adventive pest in the U.S.A. that is causing economic losses in cotton and okra. We conducted field studies to compare aspirating, bagging, beat sheet, sweep netting, and four tray-based methods: a dry tray, or a tray with 70% isopropyl alcohol, tap water, or soapy water. While aspirating and bagging served as adequate sampling methods, we found that sampling with a tray containing 70% isopropyl alcohol proved to be the most effective and time-efficient approach. This method consistently enabled rapid detection of adult male specimens across both low- and high-population field sites, facilitating reliable morphological identification.