BioOne.org will be down briefly for maintenance on 14 May 2025 between 18:00-22:00 Pacific Time US. We apologize for any inconvenience.
Registered users receive a variety of benefits including the ability to customize email alerts, create favorite journals list, and save searches.
Please note that a BioOne web account does not automatically grant access to full-text content. An institutional or society member subscription is required to view non-Open Access content.
Contact helpdesk@bioone.org with any questions.
Psorocampa is represented by three species: Psorocampa denticulata Schaus, from Brazil and Uruguay, and two new species from Brazil: Psorocampa dentilinea new species and Psorocampa caatingueira new species.
PsorocampaSchaus, 1901 was proposed to include Psorocampa denticulataSchaus, 1901 from southern Brazil and has been considered a monotypic genus since that designation (Becker 2014, Schintlemeister 2016). Two more species of Psorocampa, also from Brazil, are described herein.
The genus TrajectinaBecker, 2014, from South America, east of the Andes is reviewed, with diagnosis and illustrations of all species. Two new species from Brazil, Trajectina trajectoides new species and Trajectina monotona new species are described.
The genus Antiora, formerly known only from the Atlantic Forest of southern Brazil is reviewed, with diagnosis and illustrations of all species and description of two new species from central Brazil, Antiora dissimilis new species and Antiora variabilis new species. One species, Antiora friburga Draudt revised status, is reinstated and one species, Lobeza jonesi Draudt, new synonym (=A. friburga), is synonymized.
The gall midge Dasineura epilobii (Löw), a flower gall maker on fireweed, Chamaenerion angustifolium (L.) Scop. (Onagraceae), and other closely related plants, is shown to be a Holarctic species on the basis of anatomical and molecular evidence. The cecidomyiid is redescribed and appears to differ from other congeners by the dearth of microtrichia on the dorsum of the gonostylus and their absence from the apicoventral surface of the gonocoxal lobe.
Muhammad Ishtiaq, Safia Saba, Waheed Ali Panhwar, Sajjad Ali Larik, Ashfaq Abdul Khalique, Muhammad Ramzan, Abdulaziz Abdullah Alsahli, Mohammed Bourhia
The influence of plant extracts and bacteria (Bacillus thuringiensis) (Bt) strains on different larval stages of Trilocha varians (Walker) were studied under laboratory conditions. Results indicated that larval mortality increased with exposure time. Early instar (2nd instar larvae) were more susceptible to Bt and plant extracts than older instars (3rd instar larvae). At day seven, Turex (Bt subspecies kurstaki and aizawai) and Dipel (Bt subspecies kurstaki), showed 76.43 and 70.09% mortalities in 2nd instar larvae, respectively. Mortality rates of 3rd instar larvae were 71.17% and 65.40% for Turex and Dipel, respectively. Azadirachta indica and Eucalyptus globulus extracts caused 63.12 and 51.09% mortalities of 2nd instar larvae respectively at the highest dose rate (25 ppm/mL). These results are consistent with previous research and suggest that optimizing both dose and application duration can significantly improve pest control effectiveness. The study highlights the potential of herbal products as effective, safer and environmentally friendly organic insecticides. These products can be integrated into integrated pest management (IPM) programs and provide a sustainable alternative to traditional chemical insecticides.
New country records from Oman are added to the known distributions of Byrsinus pilosulus (Klug, 1845) (Pentatomoidea: Cydnidae), Sciocoris longiscutumWagner, 1965 (Pentatomoidea: Pentatomidae), Spilostethus furcula (Herrich-Schaeffer, 1850) (Lygaeoidea: Lygaeidae), Horridipamera inconspicua (Dallas, 1852) (Lygaeoidea: Rhyparochromidae) and Stenolemus novakiHorváth, 1888 (Reduviidae). The presence of Coridius viduatus (Fabricius, 1794) (Pentatomoidea: Dinodoridae) in Oman is confirmed.
I provide the correct generic combinations for the four species that at one time were combined with Teuchophanes Meyrick, now considered to be a junior subjective synonym of Helcystogramma Zeller: Teuchophanes leucopleura Meyrick, Dichomeris luminosa Busck, Dichomeris perceptella Busck, and Dichomeris cornuta Busck. I remove Teuchophanes leucopleura Meyrick revised status from synonomy with Dichomeris luminosa Busck. All species are accurately placed in Helcystogramma except Dichomeris cornuta Busck revised status, which should be moved back to Dichomeris Hübner. I provide a brief review of the history of the specimens involved with the classification and interpretation of the Teuchophanes combinations including designating lectotypes for D. luminosa Busck and D. cornuta Busck. During the course of reviewing similar specimens, I discovered three species: H. robinsoni new species, H. salonenae new species, and D. adamskii new species. I provide illustrations and detailed descriptions to differentiate the species, along with a key to the included species of Helcystogramma. I include new records for the named species and biology where known for the new species including a number of host plant records.
A list is provided of species of aquatic and semiaquatic Coleoptera and Heteroptera observed at the Huyck Preserve in Albany County, New York, United States during the summer of 2022. A total of 54 species of Heteroptera were recorded from 13 families, while 127 species of Coleoptera were recorded from 13 families. Two species of Dytiscidae are new state records for New York: Heterosternuta allegheniana (Matta & Wolfe) and Neoscutopterus hornii (Crotch). The occurrence of Hygrotus picatus (Kirby) and Merragata brunnea Drake in the state are clarified. The first specific records of four species of Corixidae previously reported to occur in New York are provided.
Yellow-eyed grasses (Xyris spp.) are flower-producing monocots found in seasonally or permanently wet habitats. Historically, they have been thought to be wind pollinated. However, recent research in North and South America has documented a number of insects pollinators, florivores, and other associates that visit Xyris flowers. We conducted a survey of Xyris flowers posted to the citizen science websites iNaturalist and BugGuide to assess whether Xyris flowers are visited by insects across their worldwide range. We found records of insect-flower interactions from all continents where Xyris occur and documented 29 arthropod taxa that had not previously been associated with yellow-eyed grasses.
The pentatomid Euschistus latimarginatus Zimmer, described from Nebraska in 1910, remained little collected for decades, partly because it is not known from agroecosystems and lacks economic importance. Recent collecting has expanded its known range: North Dakota south to Texas and west to Colorado and Utah. Host plant records for this pentatomid of sandy communities are scant. I obtained bionomic information irregularly (2015 to 2022) by sampling diverse herbs and shrubs in the north-central Nebraska Sandhills, where the bug is common, and in sandsage prairie of southwestern Nebraska. Collecting in two loess prairie remnants across the Missouri River led to new state records for Iowa and Missouri. The stink bug developed mainly on fruits of its hosts. Three plants characteristic of the Sandhills, Penstemon bradburyi (Plantaginaceae), Tradescantia occidentalis (Commelinaceae), and Yucca glauca (Asparagaceae), yielded the most records. Adults overwintered on Juniperus virginiana (Cupressaceae) and in crowns of bunchgrasses and dispersed to early season hosts by the following May. The beginning of egg hatch was not determined; all five instars were present by late June. The mating pairs and early instars I observed in July probably were those of the second generation. Adults were scarce on hosts by late September and early October; others had dispersed to overwintering sites. Euschistus latimarginatus seems secure in the sparsely populated and largely intact Nebraska Sandhills based on the near absence of row-crop agriculture and good stewardship by cattle ranchers.
This article is only available to subscribers. It is not available for individual sale.
Access to the requested content is limited to institutions that have
purchased or subscribe to this BioOne eBook Collection. You are receiving
this notice because your organization may not have this eBook access.*
*Shibboleth/Open Athens users-please
sign in
to access your institution's subscriptions.
Additional information about institution subscriptions can be foundhere