Volume 30 – 1990 : Hawaiian Entomological Society

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    Parasites Associated with the Leucaena Psyllid, Heteropsylla cubana Crawford, in Hawaii
    (Hawaiian Entomological Society, 1990) Beardsley, John W. ; Uchida, Grant K.
    Four species of parasitoid Hymenoptera have been reared from the Leucaena psyllid, Heteropsylla cubana Crawford, in Hawaii. In addition to the purposely introduced primary parasite Psyllaephagus yaseeni Noyes (Encyrtidae), three species of hyperparasites have been reared. These are a pteromalid, Pachyneuron siphonophorae (Ashmead), and two encyrtids, Syrphophagus aphidivorus (Mayr) and Syrphophagus sp. A key to parasitoids reared from H. cubana in Hawaii is presented.
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    Marietta pulchella (Howard) (Hymenoptera: Aphelinidae), a Primary Parasite of Conchaspis angraeci Cockerell (Homoptera: Conchaspididae)
    (Hawaiian Entomological Society, 1990) Beardsley, John W. ; Tsuda, Dick M.
    An aphelinid wasp, Marietta pulchella (Howard), was discovered for the first time in Hawaii when it was reared from the angraecum scale, Conchaspis angraeci Cockerell. M. pulchella develops as a solitary ectoparasite within the scale cover. This is the first record of a parasitoid attacking C. angraeci, and the first record of a Marietta species developing as a primary parasite.
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    Scientific and Operational Notes Hypothenemus obscurus (Fabricius) (Coleoptera: Scolytidae), a New Pest of Macadamia Nuts in Hawaii
    (Hawaiian Entomological Society, 1990) Beardsley, John W.
    A tropical American scolytid beetle, Hypothenemus obscurus (Fabricius), was found for the first time in the Hawaiian islands during July 1988 when beetles were reared from macadamia nuts from the Kona region of Hawaii Island. Macadamia is a previously unreported host for H. obscurus which is a potentially serious new pest of this crop.
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    The Genus Kleidotoma Westwood in Hawaii, with Descriptions of Three New Species (Hymenoptera: Cynipoidea: Eucoilidae)
    (Hawaiian Entomological Society, 1990) Beardsley, John W.
    Taxonomic descriptions and a key are provided for species or the genus Kleidotoma Westwood known from Hawaii. Six species are treated, three of which are described as new. Two new species associated with endemic freshwater Ephydridae and Canaceidae are placed in a new subgenus, Nesakleidotoma. A third species, K. (Pentakleidota) swezeyi Yoshimoto, also may be aquatic and has been collected around brackish littoral ponds containing larvae of Neoscatella (Ephydridae). Of the remaining three species, all placed in the nominate subgenus, two have not been associated with aquatic environments and are presumed to be recent immigrants of unknown origin. One of these is described as new, and the second, K. kraussi Yoshimoto, was known previously only from Fiji. The third species, K. bryani Yoshimoto, previously known only from Hawaii and Palmyra, is here reported from Guam, where it was collected in association with beach seaweed.
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    Notes on Immigrant Delphacid Planthoppers in Hawaii (Homoptera: Fulgoroidea)
    (Hawaiian Entomological Society, 1990) Beardsley, John W.
    Immigrant delphacid planthoppers which have become established in Hawaii since 1960 are discussed, and a revised key to Hawaiian Delphacini (sensu Zimmerman 1948) is presented.