Volume 43 - December 2011 : Hawaiian Entomological Society

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    A New State Record for the Whitefly Aleuroglandulus subtilis Bondar in Hawaii
    ( 2011-12-12) Nagamine, Walter T. ; Garcia, Janis N.
    A whitefly, reported as new to Hawaii during 2006, was tentatively identified as Aleuroglandulus sp. prob. subtilis. A second discovery in 2011 was confirmed as Aleuroglandulus subtilis Bondar (Hemiptera: Aleyrodidae).
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    Fiorinia phantasma Cockerell and Robinson (Hemiptera: Diaspididae), an Armored Scale Pest New to Hawaii
    ( 2011-12-12) Garcia, Janis N.
    A diaspidid species new to both Hawaii and the Western Hemisphere is confirmed. Fiorinia phantasma Cockerell and Robinson, a new state record, is a polyphagous species and pest of many ornamental plants in Hawaii.
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    First Report of Trichogramma achaeae (Hymenoptera: Trichogrammatidae) from Hawaii
    ( 2011-12-09) Wright, Mark G. ; Stouthamer, Richard
    Trichogramma achaeae is reported from Oahu and Kauai. This egg parasitoid was first found parasitizing eggs of Helicoverpa zea on corn plants on Oahu. It was subsequently reared from on Lycaenidae and Noctuidae collected from Fabaceae and Euphorbiaceae respectively, on Kauai.
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    Pangaeus bilineatus (Say), a Burrowing Bug New to Hawaii
    ( 2011-12-09) Garcia, Janis N.
    A burrowing bug, new to Hawaii, is noted. Collections of Pangaeus bilineatus are confirmed as a new state record for Hawaii.
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    Capture of Bactrocera Males (Diptera: Tephritidae) in Parapheromone-Baited Traps: Performance of Solid Dispensers with Different Loadings of Attractants and Toxicant
    ( 2011-12-09) Shelly, Todd E. ; Kurashima, Rick S. ; Nishimoto, Jon I.
    Bactrocera cucurbitae (Coquillett) and B. dorsalis (Hendel) (Diptera: Tephritidae) are important agricultural pests of the Pacific region. Detection of these species relies on traps baited with male-specific attractants, namely cue lure for B. cucurbitae and methyl eugenol for B. dorsalis. At present, these lures (plus naled, an insecticide) are applied in liquid form, although this procedure is time-consuming, and naled as well as methyl eugenol may pose human health risks. Recent field tests have shown that traps baited with a solid formulation (termed a wafer) that contains both lures (plus DDVP, an insecticide) capture as many or even more Bactrocera males than traps with the standard liquid lures. However, these previous studies used relatively large wafers, which would likely be inadequate for large-scale trapping programs, as fitting them into traps was inconvenient and time-consuming. The purpose of the present study was to compare captures of B. cucurbitae and B. dorsalis males in traps baited with liquids versus traps baited with different-sized wafers, which also contained different loadings of the male lures. Based on a series of field tests, we found that traps with a slightly smaller (medium-sized) wafer, which is more easily inserted and removed from the traps, performed as well or better than traps with the standard liquid lures or the original large-sized wafer. In addition, field tests with medium wafers showed that the DDVP level could be halved without any loss of trap effectiveness.