Volume 27 – December 1986 : Hawaiian Entomological Society

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    Some Preliminary Results on the Status of the Oahu Species of Banza (Orthoptera: Tettigoniidae: Copiphorinae)
    (Hawaiian Entomological Society, 1986-12) Strazanac, John S.
    The status of the two species of Banza from the Island of Oahu, A parvula and B. unica is brought into question due to results of rearing out adults from eggs oviposited by a wild caught Banza parvula. Basic techniques for rearing Banza are discussed and some preliminary observations on their reproductive biology are also given. Two matings of Banza parvula were observed in the lab and their behavior are described in a preliminary fashion. The results put the current classification of Banza into question an show the potential of this group for evolutionary studies.
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    Modified Ultrsonic Actograph for Monitoring Activity of Lepidopterous Larvae
    (Hawaiian Entomological Society, 1986-12) Johnson, Marshall W. ; Toscano, Nick C. ; Jones, Vincent P. ; Bailey, J Blair
    An ultrasonic actograph was modified to detect the slow movements typical of lepidopterous larvae. A differential instrumentation amplifier increased the sensitivity of the instrument. Activity patterns of 5th instars of Spodoptera exigua (Hubner) (Lepidoptera: Noctuidae) and Sabulodes aegrotata Guenee (Lepidoptera: Geometridae) were determined using the modified actograph. S. exigua larvae were active ca. 339 minutes of the day with significantly greater photophase activity during 0600-1000 and 1100-1300 hrs as compared to scotophase activity during 0000-0400 and 2200-2400 his. S. aegrotata larvae were active ca. 421 minutes of the day with greater activity during the scotophase period.
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    A Personal View of Applied Biological Research
    (Hawaiian Entomological Society, 1986-12) Saul, Stephen H.
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    Evidence of Parental and/or Sibling Manipulation in Three Species of Termites in Hawaii (Isoptera)
    (Hawaiian Entomological Society, 1986-12) Myles, Timothy G.
    Wing pad and leg scars are reported to occur on three of the four species of termites found in Hawaii: Cryptotermes brevis (Walker), Incisitermes immigrans (Snyder), and Neotermes connexus Snyder (Kalotermitidae). Such scars were not found on Coptotermes formosanus Shiraki (Rhinotermitidae). The nature, placement and frequency of scars all support the view that such scars are inflicted by nestmates and are not due to physical accidents or attacks by heterospecifics. These are the first records of nestmate manipulation for all three genera and the first such records for the Oceanic region. This is also the first report of manipulation by leg biting and the first report of leg regeneration in the Isoptera. Scarring appears to be the determinative event in pseudo-worker differentiation in many lower termites.
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    A New Euphorbia-Associated Plagithmysine from Maui (Coleoptera: Cerambycidae)
    (Hawaiian Entomological Society, 1986-12) Samuelson, G.A. ; Davis, C.J.
    An Euphorbia-associated species of Plagithmysus of the subgenus Neoclytarlus from Maui Island is described as new. Ii is the fourth member of this subgenus of native Hawaiian longicorn beetles to be associated with Euphorbia. The new species is characterized, illustrated, and compared to close relatives.
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    Influence of Prior Egg-laying Experience on Choice of Host Fruits for Oviposition by the Mediterranean Fruit Fly, Ceratitis capitata (Wiedemann)
    (Hawaiian Entomological Society, 1986-12) McDonald, P.T.
    Laboratory populations of Ceratitis capitata were preexposed to either mock orange or sweet orange for oviposition. Compared with an unexposed population, both these populations showed a preference for their preexposure type host when offered a choice for 24 hours. By 48 hours all three populations oviposited exclusively on the sweet oranges. Subsequent removal of the preferred hosts resulted in the use of the alternative underexploited hosts.
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    Notes on the Ashmead Types of Hawaiian Eucoilidae (Hymenoptera: Cynipoidea)
    (Hawaiian Entomological Society, 1986-12) Beardsley, John W.
    The type specimens of the nine species of Eucoilidae described by W.H. Ashmead in the Fauna Hawaiiensis were studied. This material, presently in the British Museum (Natural History), London, is redescribed, and important morphological characters are illustrated. Lectotypes are designated for four species which Ashmead based on more than one specimen (i.e. Pilinothrix bicolor. Diranchis monticola, Diranchis rufipes. and Hypodiranchis hawaiiensis). and for Trybliographa hawaiiensis, which was based on a single specimen but for which no specified type specimen was known. In the latter case, a single specimen bearing collection and identification data consistent with that specified in the original description, evidently is the one on which Ashmead based his description. T. hawaiiensis is placed in the genus Hypodiranchis Ashmead, and Cothonaspis (Hypodiranchis) pele Perkins 1910 was found to be a junior synonym. Because the name Hypodiranchis hawaiiensis is preoccupied, the next available name, Hypodiranchis pele (Perkins), is proposed as a replacement Ashmead's "male type" or Diranchis rufipes was found to be a male of his Hypodiranchis lanaiensis. Hexacola konensis is placed in Ganaspis Forster, and Pseudeucoila vulgaris Yoshimoto is placed as a junior synonym of it. Aglaotoma rufiventris and Aglaotoma molokaiensls are placed as new combinations in the genus Weidia Yoshimoto. Of Ashmead's nine species, eight are endemic to Hawaii and belong to the Hypodiranchis species complex (which includes Weidia). Ganaspis konensis (Ashmead) appears to be an introduced tropicopolitan species.
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    Effects of Intercropping Beans and Onions on Populations of Liriomyza spp. and Associated Parasitic Hymenoptera
    (Hawaiian Entomological Society, 1986-12) Johnson, Marshall W. ; Mau, Ronald F.L.
    Surveys of commerical plantings and experimental studies on onions were conducted in the Kula area of Maui to provide information on the Liriomyza species and their parasites inhabiting the crop. Liriomyza huidobrensis (Blanchard) (95.7%) and L. trifolii (Burgess) (4.2%) were the predominant species found infesting the onions in commercial plantings. L sativae Blanchard was occasionally recorded. The major parasite species reared from leafminers collected from onions were Halticoptera circulus (Walker) and Chrysocharis parksi Crawford. Attempts to augment parasilization of leafminers infesting onions by planting adjacent bean borders for production of leafminer parasites were unsuccessful due to several factors which are discussed.
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    Some Notes on Parasitization of Blepharomastix ebulealis (Guenee) (Lepidoptera: Pyralidae) in Oahu Forests
    (Hawaiian Entomological Society, 1986-12) Reimer, Neil J. ; Beardsley, John W.
    Parasitization of the introduced biocontrol agent Blepharomastix ebulealis was studied on Oahu from November 1982 to December 1983. Mean parasitization of larvae was 43.3 ± 6.4%. The parasitoids involved and their frequencies of occurrence are listed.
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    Re-evaluation of Manduca blackburni (Lepidoptera: Sphingidae)
    (Hawaiian Entomological Society, 1986-12) Riotte, JCE
    It is shown that Manduca blackburni is a species in its own right as originally described by Butler. It is related to M. quinquemaculata as well as M. sexta, a fact which escaped workers after Kirby (1892).