Novel rearing records are combined with published and online records to provide an account of the North American Lepidoptera known to include Gaultheria spp. (Ericaceae) among their larval hosts. Boloria eunomia (Esper)) (Nymphalidae) has been observed to oviposit on G. hispidula (L.) Muhl. ex Bigelow, but this is not known to be a true larval host. Colias pelidne Boisduval and Le Conte (Pieridae) is the only lepidopteran recorded from G. humifusa (Graham) Rydb. Rhopobota naevana (Hübner) (Tortricidae) has been reared from G. procumbens L. previously, and rearings of Clepsis melaleucanus (Walker) (Tortricidae), Xestia dilucida (Morrison), and Phlogophora periculosa Guenée (Noctuidae) from this host are reported for the first time. Sinophorus Förster sp. (Ichneumonidae) is newly reported as a parasitoid of C. melaleucanus. Species feeding on G. shallon Pursh include Lycaenidae (Callophrys augustinus (Westwood)), Geometridae (Dysstroma sobria Swett, Lambdina fiscellaria (Guenée), Neoalcis californiaria (Packard), Tetracis jubararia Hulst), Noctuidae (Egira crucialis (Harvey) and possibly Pyrrhia exprimens (Walker)), Erebidae (Lophocampa argentata (Packard)), Copromorphidae (Lotisma trigonana (Walsingham)), Gracillariidae (Cameraria gaultheriella (Walsingham), Marmara arbutiella Busck), Heliozelidae (Coptodisca arbutiella Busck), and an unidentified leafminer (likely Yponomeutidae, and possibly Eucalantica polita (Walsingham)). The record of M. arbutiella is based on new DNA barcoding data from a collected larva. Cameraria gaultheriella is newly reported from Vaccinium ovatum Pursh and appears to be synonymous with C. nemoris (Walsingham), which was described from specimens reared from this host.

Three new species of Neotropical Herminiinae are described: Rejectaria sixola Goldstein new species, R. barbuti Goldstein new species, and R. olivenca Goldstein new species. All exhibit conspicuous white forewing pattern elements including a subterminal line interrupted between M₁ and M₂ by a visible wedge, and possess male androconia associated with wings, palpi, and legs, including a subcostal fold in the forewing, as well as scute-like cornuti in the vesica of the male genitalia. The new species share most of these characters with R. niciasalis Walker with which they form a species complex.

Surveys of the caterpillars of Area Conservacion de Guanacaste (ACG), northwestern Costa Rica, documented an array of litter moths (Erebidae: Herminiinae) feeding on ferns in at least 17 families. This represents the first documentation of extensive oligophagous fern-feeding among Herminiinae and possibly within New World Erebidae. Collectively, the taxonomic composition of foodplants of pteridivorous Herminiinae in ACG differs markedly from those of corresponding fern foodplants of sympatric Noctuidae: they are less concentrated in Polypodiales and tree ferns (Cyatheaceae) are among the primary foodplants of several herminiines. These have been recorded only rarely as foodplants of ACG noctuids. Pteridivorous herminiines also appear closely related to species variously recorded from dead leaves, algae, mosses (Bryophyta), spikemosses (Selaginaceae), palms (Arecaceae), and the exclusively New World family Cyclanthaceae. Feeding on monocots and mosses by caterpillars with pteridivorous congeners may even represent a more general pattern that is shared, for example, with certain sawflies (Tenthredinidae).

The new orthotyline genus and species Pseudothenicus rubropunctatus, new genus and new species (Hemiptera: Heteroptera: Miridae) is described from two counties in southern Arizona. Provided are diagnoses, descriptions, and habitus and genitalic images of the new genus and new species to help distinguish this new bug from other western US Miridae.

Macadamia fruit with insect damage (n 5 1614) were sampled at five farms in Guatemala during 2017. Infested fruit yielded 220 adult moths: 57.27% Gymnandrosoma aurantianum (Lepidoptera: Tortricidae), 41.36% Catarata sp. (Lepidoptera: Depressariidae), and 1.36% Deoclona sp. (Lepidoptera: Autostichidae). These are the first records of these lepidopteran species from macadamia in Guatemala. Percentages of macadamia fruits damaged by lepidopteran fruit borers at the three farms with the highest rates of infestation were 15.92%, 13.70%, and 13.41%, comparable to infestation rates reported from Costa Rica.

The monotypic Knudsonia new genus is described for Knudsonia lathraeata new species. The new species and genus are placed in the larentiine tribe Dyspteridini Hulst and hypothesized to be closely related to Celonoptera Lederer and Heterophleps Herrich-Schäffer. Adult morphology, including male and female genitalia are illustrated, and molecular data that supports the new genus are reviewed.

JiniaWei and Nie, 1999 is endemic to China. Five species are known, J. fulvanaWei and Nie, 1999, J. zhengiWei and Nie, 1999, J. nigromaculaWei and Nie, 2004, J. flavicornisLi and Wei, 2009, and Jinia punctata Niu and Wei, new species.Jinia punctata is most similar to J. fulvana from Guizhou, China. A key for separating the known five species is provided.

Plummers Island is a small island located in the Potomac River in Montgomery Co., MD. Bees have been collected and cataloged from Plummers Island since 1909, but their floral associations have not been thoroughly described. As bees are important pollinators of natural and managed terrestrial ecosystems, monitoring their floral host choices is an important step towards proper land management and conservation practices. We collected bees from flowering plants on and adjacent to Plummers Island over two seasons and characterized their interactions using a bipartite plant-bee visitation network. Seven hundred and forty individual bees visited 30 species of flowering plants currently classified in 17 different genera. The resulting network was characterized by nested, asymmetrical interactions, but did not show strong evidence of either extreme generalization or specialization. The plant with highest interaction frequency score (species strength) was the invasive poison hemlock, Conium maculatum (Apiaceae), while the common sweat bee, Augochlora pura (Halictidae) had the highest interaction strength for the bees. We discuss these results considering species phenology and potential sampling biases and compare them to previous records for the island.

This work evaluated, under controlled conditions, the predatory capacity and the intraguild predation of Ceraeochrysa valida and Chrysoperla externa, with Diaphorina citri as prey. Statistical analysis indicates an asymmetric intraguild predation in favor of Ch. externa when prey density is low. There were no statistical differences in the predation of D. citri between both chrysopids when preying upon D. citri individually or in combination. It is concluded that the intraguild predation in favor of Ch. externa over Ce. valida depends on the density of the prey, and that the population of D. citri can be decreased by effect of a single chrysopid species.

We provide a list of 54 species of the tortricid tribe Archipini documented from Taiwan, five of which are newly recorded for Taiwan: Adoxophyes flagransMeyrick, 1912, Archips asiaticusWalsingham, 1900, Daemilus fulvus (Filipjev, 1962), Gnorismoneura taeniodesma (Meyrick, 1934), and Pandemis ignescana (Kuznetsov, 1976). This is also the first record of the genus DaemilusYasuda, 1972 in Taiwan. Images of the adults and genitalia are provided for the newly recorded species.