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The serendipitous discovery of the plant bug Eurycipitia clara (Distant) (Heteroptera: Miridae: Bryoccorinae: Eccritotarsini) attracted to meloid beetles and a cantharidin extract led to an expanded study of this poorly known heteropteran. The production of a cantharidin extract from meloid beetles, which was effective in attracting this plant bug, is discussed; and a description of the trap design and the methodology used to collect the mirids are given. Descriptions of the adult male and female, the egg, and the five nymphal instars are presented and biology, host plants, and feeding injury are discussed. The first host records from Hura crepitans L. (Euphorbiaceae) and Erythrina sp. (Fabaceae) are given, and new country records for Bolivia, Colombia, the Dominican Republic, Haiti, Peru, and Trinidad are reported.
Rhuda Walker is represented by 14 species, two of them described as new: robusta Becker new species from Ecuador and moreira Becker new species from Brazil. In addition, decepta Schaus revised status is reinstated, and geometrica Schaus new synonym (= basifera Walker) is synonymized. Diagnoses, illustrations of adults and male genitalia of all species, and a key to males are provided to allow their identification.
In the foothills of the Laramie Mountains in southeast Wyoming, the little-known seed bug, Botocudo modestus (Barber), occurs in discrete, local populations that interact as part of a metapopulation. Habitat for adults and nymphs consists of pockets of litter under the canopies of ponderosa pine trees. The metapopulation is likely maintained by macropterous morphs, which comprise about half of the adults. Botocudo modestus overwinters as adults and is univoltine. Reproduction occurs in July through August in the same litter occupied year round by the adults. The nymphal instars are described. In addition to B. modestus, new Wyoming state records are reported for Neosuris castanea (Barber), Nysius raphanus Howard, Slaterobius insignis (Uhler), and Sisamnes claviger (Uhler).
Tuta absoluta (Meyrick, 1917) is one of the most notorious pests of solanaceous plants in the World (Biondi et al. 2018), however, its supra-specific classification has been an historical point of contention. Its original genus, PhthorimaeaMeyrick, 1902, was a catch-all within the family and the generic limits among its contained tribe, Gnorimoschemini Povolný, 1964, are unstable. This study represents the first attempt to classify T. absoluta among taxa of Gnorimoschemini using cladistic methodology. We constructed a tree hypothesis based on 22 morphological characters using the nominal taxa for the genera Phthorimaea, ScrobipalpuloidesPovolný, 1987, and TutaKieffer and Jörgensen, 1910 among the ingroup; and the nominal taxon for the tribe Gnorimoschemini, Gnorimoschema gallaesolidaginis (Riley, 1869), as the outgroup. The parsimony analysis resulted in a single shortest tree with T. absoluta in a monophyletic clade that included Phthorimaea operculella (Zeller, 1873), the type species of Phthorimaea. The genera Tuta and Scrobipalpuloides were also resolved in the tree hypothesis. We propose the reinstated combination Phthorimaea absoluta Meyrick, 1917 and the new combination Phthorimaea chiquitella (Busck, 1910). The genera Tuta (with the single species Tuta atriplicellaKieffer and Jörgensen, 1910) and Scrobipalpuloides remain valid in Gnorimoschemini. We provide a history of the taxonomy of Tuta absoluta and a detailed character list and matrix used in our analysis.
An updated checklist of the 82 species of Gelechiidae recorded from Panamá is provided, along with type depositories, type localities, records from the literature, and a map of all collecting sites, recent and historical. Eleven species are newly recorded for the country, and for one of these, Anacampsis phytomiella Busck, the male genitalia are described for the first time. Iphimachaera picticollis (Walsingham, 1912) is transferred to Depressariidae, and therefore is excluded from the list.
The fourteen aphid species recorded as feeding on Holodiscus (Rosaceae) are listed, discussed, and a key to species provided. One new species is described, Acyrthosiphon rockspirea new species, which lives throughout the year on Holodiscus in a wide range of habitats. Two names, Aphis coweni Palmer and Aphis holodisci Robinson are declared to be new junior synonyms of Aphis cercocarpi Gillette and Palmer and much taxonomic data and information are provided to support these conclusions. The heteroecious life cycle of A. cercocarpi between Holodiscus and Veratrum (Melanthiaceae) is described, and biological and taxonomic information, and a key to aphids known from Veratrum, are provided. The correct host plant, monoecious life cycle, and taxonomic features of Illinoia gracilicornis (MacGillivray) are discussed, including brief descriptions of all morphs. The heteroecious life cycle of Macrosiphum walkeri Robinson is documented for the first time, with brief descriptions of the oviparae and males.
Over a 4-year time span (2013–2016), we collected and reared several thousand larvae of the silver-spotted skipper butterfly, Epargyreus clarus (Cramer), from six different commonly used host plants growing at sites in and around the Washington, DC metropolitan area. Of these, more than 1500 survived to pupation or parasitoid emergence, with annual frequencies of parasitism ranging from 1.7–7.6%. More parasitoids tended to emerge from E. clarus larvae collected later in the season, and parasitism varied significantly among host plants. In total we reared six morphologically distinct species of primary parasitoids (all koinobiont endoparasitoids) from E. clarus larvae; these included four species of Braconidae and a single species each of Ichneumonidae and Tachinidae. The braconid Pneumagathis spiracularis (Muesebeck) is reported as a parasitoid of E. clarus for the first time along with the first host plant associations for P. spiracularis. New host plant associations are reported for the ichneumonid Casinaria lamina (Viereck) parasitic on E. clarus. We also report the trigonalid Orthogonalys pulchella (Cresson) as a parasitoid of P. spiracularis along with new host plant associations; P. spiracularis is the first reported host other than a species of Tachinidae and the second record of a trigonalid parasitic on a species of Braconidae. Images of adult parasitoids are provided, and relevant natural history data are presented based on our careful rearing protocol.
Comones dulcis Mottern new species is described from specimens reared from flat grass scale, Aclerda takahashii Kuwana, on sugarcane in Palm Beach County, Florida. The new species exhibits considerable size variation and apparent allometric scaling of body parts that are often used for encyrtid species diagnosis. Therefore, both morphological and molecular data are presented to describe and diagnose the species. Photographs of the congeners C. ferrierei (Burks) and C. gastron (Walker)_ are included for comparison. Prospects for incorporating C. dulcis into a biological control program targeting flat grass scale are discussed.
DictyodesMalloch, 1933 (Diptera: Sciomyzidae) is a new synonym of RetelliaRobineau-Desvoidy, 1830, with Retellia claropunctataRobineau-Desvoidy, 1830 (Tetanocera) serving as the type species of Retellia. Steyskal's (1974) analysis is confirmed, that Malloch (1933) redescribed Tetanocera dictyodesWiedemann, 1830 [as Dictyodes dictyodes] from a specimen that Malloch misidentified as T. dictyodes but which was, in fact, an undescribed species. Retellia platensis (Steyskal, 1974) (Dictyodes) new combination is confirmed as a new synonym of Retellia lacera (Wiedemann, 1830) (Tetanocera) new combination; a lectotype and a paralectotype are designated for the latter species. Steyskal's (1974) designation of Pherbina cayennensisRobineau-Desvoidy, 1830, an unplaced but possibly related species, as a nomen dubium is supported. A key to distinguish species of Retellia from similar-looking species in the Neotropical Region and a key to the two valid species of Retellia are provided. Relationships among Retellia and other genera of Sciomyzidae are discussed.
We describe and illustrate for the first time the third instars of Anastrepha amplidentata Norrbom and Anastrepha durantae Norrbom from Peru. Morphological structures such as the facial mask, cephaloskeleton, and spiracles are described using optical and scanning electron microscopy. A summary of comparative measurements of larvae of the eleven previously described species within the fraterculus group is provided. We discuss morphological characters that can be used to distinguish species within the fraterculus group, such as oral ridges, accessory plates, mouthhook, prothoracic spiracles, dorsal spinules, posterior spiracles, and anal lobes.
A new Brazilian cicada Brevialavenosa aurepilosa Sanborn, new genus, new species is described and illustrated. ProsotettixJacobi, 1907 is determined not to have the characteristics of Taphurini Distant, 1905 and is reassigned here to Selymbriini Moulds and Marshall, 2018 (in Marshall et al. 2018) of the Tibicininae Distant, 1905.
A new species of the cicada genus Buyisa Distant, 1907 is described from South Africa for an undetermined species referenced in the literature. Buyisa eccaensis new species is described and illustrated and notes on its biology are provided. A key to the officially described species of Buyisa is also included.
The brown marmorated stink bug (BMSB), Halyomorpha halys (Stål), is a polyphagous, invasive insect of economic concern to agricultural production in North America. It was first discovered in Utah in 2012; crop damage was first reported in 2017. We propose that northern Utah's high elevation agricultural regions (> 1200 m), arid climate, and small-scale production fields surrounded by suburban development may invoke differences in BMSB attraction to baited traps and, thereby, influence the effectiveness of monitoring protocols compared with other BMSB-invaded regions. To evaluate these potential differences, we sampled the BMSB along transects with pyramid and sticky panel traps and visual plant inspections at nine orchard and community garden site-years (< 2.5 ha). Sites were selected to represent common specialty crops grown in Utah, including peach, apple, pear, tart cherry, and diverse vegetables. Sampling was conducted in four locations within sites; exterior, border, border-interior, and center; and in early, mid-, and late seasonal periods. Results did not support a BMSB preference for field-site borders as found in other regions and crop situations of the United States. Pyramid traps attracted significantly more BMSB than sticky panel traps throughout the growing season, and significantly more BMSB than visual plant inspections in the mid- and late season. Visual monitoring may be a cost-effective BMSB detection strategy when conducted near pheromone-baited traps in the early season. Overall, positive correlations between pyramid and sticky panel trap catch was weak in both 2018 and 2019. Therefore, we suggest that pyramid traps, especially in combination with visual plant inspections, are optimal for monitoring and detecting BMSB in the Utah agricultural landscape where populations are relatively low and field size is < 2.5 ha. Additionally, border-focused management strategies may be less effective in Utah compared with regions with higher BMSB infestations, larger field sizes, and adjacent agricultural or natural landscapes.
Based on morphological characters, Guyanymphula cayennensisHeppner, 2015, new synonym, the type species, is synonymized with Cryptocosma perlalisLederer, 1863, the type species. As a result, GuyanymphulaHeppner, 2015, new synonym, and Cryptocosma Lederer (1863) are subjective generic synonyms because they are not based on the same type specimen, and as the oldest name, Cryptocosma Lederer has nomenclatural priority. Cryptocosma is transferred from the Acentropinae to the Glaphyriinae with the new tribe, Guyanymphulini Heppner, created for this genus. Lectotypes are designated for the type species, Cryptocosma perlalis Lederer, and Cryptocosma pigrissima Dyar (1914), revised status, which is removed from synonymy with C. perlalis. We provide illustrations of type specimens and a new diagnosis for the genus. We discovered new country records for C. perlalis from Colombia, Costa Rica, Ecuador, Guatemala, Guyana, Peru, and for C. pigrissima from Venezuela. The morphology and distribution of reduced adult mouthparts in the Glaphyriinae and the cataclystiform pattern, or metallic spots, along the hindwing outer margin in crambid subfamilies is discussed.
Ricardo Alberto Toledo-Hernández, Fernando Martínez, María De Lourdes Ramírez-Ahuja, Arturo Sánchez, Douglas Rodríguez, Amy Driskell, Matthew Buffington
A novel trap designed for monitoring parasitoids of spotted-wing Drosophila (SWD) is described. This new trap utilizes host fruits that are known host substrates for SWD and chocolate or vanilla baits, yielding a more accurate measure of SWD-parasitoids populations than banana traps. Fieldwork was carried out in Michoacan, Mexico, and the dominant parasitoids captured were all Figitidae: Leptopilina boulardi Barbotin, Carton and Kelner-Pillault and Ganaspis brasiliensis Ihering. The capture of Ganaspis brasiliensis is the first record of this species in Michoacan, and using DNA ‘COI barcode’ data, this Mexican population is consistent with the G5 population. We conclude that it is possible to promote this species as a biological control agent through inoculation and conservation in organic production of blackberry against D. suzukii, through an “Augmentoria” strategy using our sentinel trap with chocolate baits and preferred host of SWD to attract more SWD-parasitoids.
The lace bug Corythaica bellula Torre-Bueno is one of four North American species in this mainly Neotropical genus. All species known from Canada and the United States are seldom collected and their bionomics little known. Adults and nymphs of C. bellula were collected from Scribner's panicgrass (Dichanthelium oligosanthes subsp. scribnerianum [Nash] Freckmann and Lelong; Poaceae) in 12 counties of the Nebraska Sandhills. Its collection in South Dakota from this host represents a new state record. The panicoid grass is the tingid's second host plant identified to species level. All adult males (n = 51) were brachypterous, as were 90 of 91 females; the single macropter was collected in mid-July. The collection of nymphs in May and July suggests bivoltinism. Nymphs and adults of a congener, C. venusta (Champion), were syntopic with C. bellula at a site in Grant County, Nebraska, which is the first specific locale recorded for C. venusta in the state. Corythaica bellula, whose adults are only 1.98 (brachypters) to 2.20 mm long (macropters), is part of the hidden biodiversity of the vast Nebraska Sandhills.
Phragmitalitus Zahniser and Gnezdilov, new genus is described to accommodate Paralimnus taeniatus Linnavuori, a species described from the Republic of South Africa, but not conforming in some key morphological characters to other species included in Paralimnus Matsumura, which is otherwise known only from the Palearctic Region. The species is illustrated and recorded from Madagascar and Zambia for the first time.
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