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.