Volume 52 - 2020: Hawaiian Entomological Society

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    In Memoriam Betsy Harrison Gagne (1947–2020) Celebrating a True Force of Nature: Betsy Harrison Gagne’s Gifts to Hawaii and its Native Ecosystems
    (Hawaiian Entomological Society, 2021-03-15) Montgomery, Steven L ; Howarth, Francis ; Allison, Allen ; Reilly, Sharon ; Churchill, Jim ; Yuen, Emma ; King, Cynthia
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    First Record of the Coffee Berry Borer, Hypothenemus hampei (Ferrari, 1867), on the Hawaiian Island of Lanai (Coleoptera: Curculionidae: Scolytinae)
    (Hawaiian Entomological Society, 2020-10-13) Gillett, Conrad, PDT ; Honsberger, David ; Bogner, Kari K ; Sprague, Rachel S ; Matsunaga, Janis N ; Rubinoff, Daniel
    A survey for scolytine bark and ambrosia beetles undertaken on the entomologically understudied Hawaiian island of Lanai revealed for the first time the presence there of the coffee berry borer, Hypothenemus hampei (Ferrari, 1867), a serious exotic pest of cultivated coffee. Lanai is chronologically the fourth Hawaiian island on which H. hampei has been found, following its initial detection on the island of Hawaii, followed by Oahu then Maui. We present the new records from Lanai in detail, together with a map of collecting sites and photographs of an adult specimen, demonstrating that the beetle is now widespread on Lanai, occurring at high and low elevations, and in both mesic and xeric environments.
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    Twenty Years of Complaints: Arthropods of Medical Importance in Maui County, Hawaii, from 2000 to 2019
    (Hawaiian Entomological Society, 2020-09-04) Inskeep, Jess R
    A primary function of the Vector Control (VC) branch of the Hawaii Department of Health is managing invasive arthropods that endanger the health of Hawaii’s residents and visitors and threaten disruption to the tourism-dependent economy. To partly accomplish this task, VC inspectors and entomologists ameliorate issues of vector nuisance raised through public complaints. In this study I assessed trends in public complaints received by the Maui VC office between the years 2000 and 2019, by year, month, island region, and pest type. Mosquitoes were the most complained-about pest across all island regions, but complaints varied little by year and month. Hymenopteran (primarily bee and yellowjacket) complaints were second-most common and were more frequent at high elevation areas on the slopes of Haleakala (= “Upcountry”). Hymenopteran complaints followed an annual unimodal trend with a peak in August and a trough in January. Altogether, complaints of outdoor pests (e.g., Hymenopterans, nuisance flies) have decreased over the past 20 years, while complaints of indoor pests (e.g., cockroaches, bed bugs) have increased. Future management of vector pests in Maui County should be carried out with consideration of these long-term trends.
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    Reintroduction of a Native Hawaiian Bee, Hylaeus anthracinus (F. Smith) (Hymenoptera: Colletidae), to Part of its Former Range
    (Hawaiian Entomological Society, 2020-08-25) Magnacca, Karl N.
    The endangered endemic coastal bee Hylaeus anthracinus (F. Smith) (Colletidae) is currently restricted to a few populations on each island from Oahu to Hawaii, which are mostly near the shoreline and vulnerable to extirpation due to environmental change or alien species incursion. At the same time, the species is absent from some sites where it formerly occurred that have once again become suitable due to habitat restoration. To increase the number of populations and test translocation as a method for Hylaeus conservation, bees were captured at highdensity sites in South Kohala, Hawaii island and released at three sites in South Kona at Puuhonua o Honaunau National Historic Park. Follow-up monitoring indicated that they successfully established at the highest-quality site with a diverse array of native plants following a single release of 100 bees, but failed to survive at two sites with high abundance of bigheaded ants (Pheidole megacephala) even after a second release. This study may serve as a model for re-establishing not only Hylaeus but other native insects that have been lost from large parts of their range.