Volume 24, No. 1 – 1982 : Hawaiian Entomological Society

Permanent URI for this collectionhttps://hdl.handle.net/10125/10665

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The "Forcipomyia ingrami" Complex in Hawaii (Diptera: Ceratopogonidae)
(Hawaiian Entomological Society, 1982) Wirth, Willis W.; Howarth, Francis G.
Biting midges of the genus Forcipomyia are some of the most important pollinators of cacao and other tropical crop plants. A study of the species known as F. ingrami revealed that it has been misidentified, and that the African species formerly known as ingrami, now psilonota, does not occur in Hawaii. Instead there are at least four other species: palikuensis Hardy, a large, shining blackish species from Hawaii and East Maui; kaneohe n. sp., a small shining species from Oahu; pholeter n. sp., a small pale species living in lava tube caves on Hawaii; and hardyi n. sp., a dull brownish species which is extremely common on all the islands; all probably endemic to the Hawaiian Islands. The immature stages of these midges, which breed in wet, decaying vegetation, leaf axils, and aquatic vegetation, have excellent characters diagnostic for species. Characters are illustrated and discussed showing how these species may be distinguished from their closely related congeners from the Pacific, Asia, and Africa. Forcipomyia clara Chan and LeRoux from Singapore is a junior synonym of F. sauteri Kieffer (N. SYNONYMY).
Parasitization by Trichogramma chilonis Ishii (Hymenoptera: Trichogrammatidae) of Corn Earworm Eggs on Sweet Corn in Hawaii
(Hawaiian Entomological Society, 1982) Vargas,R.I.; Nishida, T.
Some Sexually Dimorphic Characters in the Mediterranean Fruit Fly Ceratitis capitata (Wiedemann) and their Variations
(Hawaiian Entomological Society, 1982) Saul, Stephen H.
Sexually dimorphic traits in the Mediterranean fruit fly Ceratitis capitata are described. The significance of these sexual differences to genetical and behavioral research is discussed.
Introductions for Biological Control in Hawaii: 1979 and 1980
(Hawaiian Entomological Society, 1982) Lai, P.Y.; Funasaki, G.Y.; Higa, S.Y.
Food Preference of Seven Stored Product Insects to Dried Processed Taro Products
(Hawaiian Entomological Society, 1982) Jang, E.B.; Lin, C.S.; Mitchell, W.C.
Survey of Beneficial Insects in Undisturbed Cattle Droppings on Oahu, Hawaii
(Hawaiian Entomological Society, 1982) Harris, R.L.; Onaga, K.; Blume, R.R.; Roth, J.P.; Summerlin, J.W.
Insects were collected from cattle droppings at 2 locations on Oahu, Hawaii; one on the wet east side (Kualoa) and one on the dry northwest side (Poamoho). From these areas, 7 species of Scarabaeidae were collected. The most numerous species were Onthophagus gazalla F., Onthophagus sagittarius (L.), and Aphodius lividus (Oliver). Four species of Hydrophilidae were collected of which Cercyon quisquilius (L.) was the most numerous. Of the predator beetles, 9 species of Staphylinidae [Oxytelus sp., Philonthus (probably longicornis Steph.), Philonthus rectangulus Shp., Philonthus discoideus Grav., Philonthus sp., Platystethus sp., Lithocharis sp., Eulissus sp., and Xantholininae gen. sp.] and 2 Histeridae [Pachylister caffer (Erich.) and Hister nomus Erich. J were collected; all low in numbers except the Oxytelus species. Dipterous larvae, in 6 families and other unidentified families, were collected. In general, beetles were more abundant at Poamoho than at Kualoa and dipterous larvae were more abundant at Kualoa.
The Genus Schistopterum Becker (Schistopterinae: Tephritidae: Diptera)
(Hawaiian Entomological Society, 1982) Hardy, D. Elmo
The genus Schistopterum is discussed and the known species keyed. S. ismayi n. sp. is described and figured. This is the first record of the genus outside Africa and southern Europe.
A New Species of Hemicheyletia (Acari: Cheyletidae) from Kure Atoll, Northwestern Hawaiian Islands
(Hawaiian Entomological Society, 1982) Goff, M Lee
Hemicheyletia kureatollensis is described as new from leaf litter and soil collected on Kure Atoll, Northern Hawaiian Islands.
Hylaeus pubescens and Associated Arthropods at Kilauea, Hawaii Volcanoes National Park (Hymenoptera: Apoidea and Chalcidoidea; Mesostigmata: Ameroseiidae)
(Hawaiian Entomological Society, 1982) Daly, Howell V.; Coville, Rollin E.
The nest and larva of the endemic bee Hylaeus pubescens are described. Nests are constructed during the winter and spring months. The larva is the first of the subgenus Nesoprosopis to be described. The mite Afrocypholaelaps africana is phoretic on the bee and recorded for the first time in Hawaii. Taxonomic notes and mating behavior are given for the encyrtid parasitoids Coelopencyrtus kaalae and C. sexramosus.
Insects, Poisons, and Medicine: the Other One Percent
(Hawaiian Entomological Society, 1982) Chang, Franklin
Field Investigations on the Interrelationships of the Big-Headed Ant, the Gray Pineapple Mealybug, and Pineapple Mealybug Wilt Disease in Hawaii
(Hawaiian Entomological Society, 1982) Beardsley, John W.; Su, Tsong Hong; McEwen, F.L.; Gerling, Dan
The population density of the big-headed ant was higher during the second (ratoon) crop than during the first crop of pineapple at both Poamoho and Molokai. At Poamoho, no mealybug wilt plants were found in plots where ants had been controlled, while the number of such plants increased sharply during the second crop in plots where ants were not controlled. The incidence of mealybug wilt was higher at the edges of plots than toward the middle reflecting the greater abundance of ants and mealybugs on the margins on the plots. Wilt spread in a contagious manner with the number of diseased plants increasing at a logrithmic rate over time. The coefficient of correlation between the number of ants caught in pitfall traps and the percentage of mealybug infested plants was very high (r = 0.97). Infestation of the Molokai experimental planting by big-headed ants started at the edges of plantings adjacent to abandoned fields and waste areas. Invasion progressed slowly, and two and one half years elapsed before all plots had become infested. Ant and mealybug populations in infested plots increased gradually and appeared to be strongly influenced by the phenology of the pineapple plants during the first fruit crop. Unusually heavy rainfall during March and April 1979 may have caused the dramatic reduction in ant populations observed then. Highest ant population levels occured about three years after planting when all untreated plots became nearly uniformly infested. Pest management strategies for pineapple ants and mealybugs are discussed, and it is suggested that a program of ant surveillance using bait stakes, coupled with treatment of field margins and adjacent infested old fields or uncultivated areas when ants are discovered, can prevent migration of these pests into plantation fields.
A Key to the Late Instar Larvae of Some Hawaiian Noctuidae
(Hawaiian Entomological Society, 1982) Beardsley, John W.
On the Taxonomy of the Genus Pseudopsylla Froggatt, with a Redescription of the Type-Species (Homoptera: Coccoidea)
(Hawaiian Entomological Society, 1982) Beardsley, John W.
The history of the genus Pseudopsylla Froggatt and the rediscovery of the type specimens of P. hirsutus Froggatt, the type species, are discussed. Pseudopsylla is placed as a junior synonym of Lachnodius Maskell on the basis of the morphological and biological similarities between the type species of these genera which are enumerated. Froggatt's species is redescribed and illustrated from the type specimens as a new combination, Lachnodius hirsutus (Froggatt), and a lectotype is designated.
Reproductive and Sexual Maturity of the Mediterranean Fruit Fly, Ceratitis capitata (Wiedemann)
(Hawaiian Entomological Society, 1982) Arita, Lorna H.
The data presented suggest temporal differences between reproductive maturity and sexual maturity in males as well as females of Ceratitis capitata. Males were reproductively mature near the time they eclose though they were not sexually mature until 48 h later. Females, on the other hand, were sexually mature at 48 h but were not reproductively mature until 4 days old. Thus, in comparision, sexual maturity in both sexes was reached at about the same time while reproductive maturity differed by about 4 days.
24:1 Proceedings - PHES
(Hawaiian Entomological Society, 1982)
24:1 Table of Contents - PHES
(Hawaiian Entomological Society, 1982)

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