EJE, vol. 94 (1997), issue 4
Electron microscopic observations on the H-organ of Lepidoptera
Eur. J. Entomol. 94 (4): 425-429, 1997
The H-organs of lepidopteran larvae, which have been previously described as neurohaemal organs, were reinvestigated using electron microscopy. The results of this study revealed that there are no signs of neurosecretion in the H-organs of Galleria mellonella and Manduca sexta. Moreover, the Horgans consist of fibroblasts and are considered to be connective tissue and not neurohaemal organs.
Book Review: Regulatory Mechanisms in Insect Feeding.
Eur. J. Entomol. 94 (4): 430, 1997
Chapman R.F. & de Boer G. (eds): Regulatory Mechanisms in Insect Feeding. Chapman & Hall, New York, London, 1995, 398 pp.
Recognition of oviposition-deterring allomones by aphidophagous predators (Neuroptera: Chrysopidae, Coleoptera: Coccinellidae)
Eur. J. Entomol. 94 (4): 431-434, 1997
Females of Coccinella septempunctata L. were deterred from ovipositing at sites previously exposed to larvae of C. septempunctata or Chrysopa oculata Say. If aphidophagous predators can respond to one another's deterring allomone then they may avoid competing for prey. The deterrent effect from exposure to C. septempunctata or C. oculata larvae considerably decreased when contaminated sites were kept in open air for 24 h. Females of C. oculata avoided ovipositing at sites exposed to larvae of C. oculata, but the deterrent effect of sites exposed to larvae of C. septempunctata was negligible.
Photo-thermoperiodic responses in some species of lacewings (Neuroptera: Chrysopidae): Their role in diapause induction
VOLKOVICH T.A., BLUMENTAL N.A.
Eur. J. Entomol. 94 (4): 435-444, 1997
The effects of combinations of photoperiod and temperature on diapause induction in six species of lacewings (Chrysopidae) from the forest-steppe zone (Russia, 50°N) were examined. Diapause induction in the short day was temperature-independent ill all species, with exception of Chrysopa phyllochroma. In this species the incidence of diapause decreased within the range from 25 to 33°C. The long day prevented diapause only within particular temperature limits, which were species specific. In species with typical long-day photoperiodic response (C. perla, C. septempunctata and Chrysoperla carnea) daily temperature fluctuations...
Book Review: The Hymenoptera.
Eur. J. Entomol. 94 (4): 444, 1997
Gauld I. & Bolton B.: The Hymenoptera. Oxford University Press, Oxford, 1996, 344 pp.
Migratory syndrome in the water strider Aquarius paludum (Heteroptera: Gerridae) reared in high versus low nymphal densities
HARADA T., TABUCHI R., KOURA J.
Eur. J. Entomol. 94 (4): 445-452, 1997
The effect of crowding in nymphal stage on the induction of development of macropterous adults with high flight ability was studied in the laboratory in the water strider Aquarius paludum. High density induced a higher proportion of macropterous morphs than low density. No brachypterous adults developed flight muscles in either experimental density. When kept under high density, about 80% of adults kept indirect flight muscles for 25-30 days after adult emergence, whereas only about 50% or 60% of females and males, respectively, retained theirs when grown under low density. The remaining adults histolysed indirect flight muscles in both groups....
Experiments on the foraging behaviour of the hunting spider Pisaura mirabilis (Araneae: Pisauridae): Utilization of single prey items
LANG A., KLARENBERG A.J.
Eur. J. Entomol. 94 (4): 453-459, 1997
Feeding experiments with female Pisaura mirabilis were carried out in the laboratory. Several species of Diptera, ranging in their size from small fruitflies to large blowflies, were offered. Each spider received a single fly, and then the absolute as well as the relative amount of prey consumption was recorded. Absolute consumption was measured as the amount of a fly consumed by the spiders. Relative consumption, i.e. the utilization rate, was calculated as amount of fly consumed by the spiders divided by the initial mass of the fly. Absolute consumption was positively correlated with the mass of the fly, i.e. the larger the fly the more the...
Book Review: Chironomidae (Diptera) of Japan.
Eur. J. Entomol. 94 (4): 459-460, 1997
Sasa M. & Kikuchi M.: Chironomidae (Diptera) of Japan. University of Tokyo Press, Tokyo, 1995, 333 pp., 96 plates.
Effect of the entomopathogenic fungus Beauveria bassiana on the humoral immune response of Galleria mellonella larvae (Lepidoptera: Pyralidae)
VILCINSKAS A., MATHA V.
Eur. J. Entomol. 94 (4): 461-472, 1997
In this study the entomopathogen Beauveria bassiana caused no humoral immune response in Galleria mellonella when it entered the host through the integument in a natural manner. Initiation of my cosis by injection of living or heat-inactivated blastospores elicited the release of antimicrobial proteins such as lysozyme and cecropins within the hemolymph. Maximum levels were reached 24 h after treatment. Afterwards, these levels declined faster in larvae with established mycosis. Subsequent studies documented the ability of B. bassiana to suppress increases in antibacterial activity within the hemolymph of G. mellonella larvae...
Seasonal activity, age structure and egg production of the ground beetle Anisodactylus signatus (Coleoptera: Carabidae) in Hungary
FAZEKAS J., KADAR F., SAROSPATAKI M., LöVEI G.L.
Eur. J. Entomol. 94 (4): 473-484, 1997
The seasonal activity, age structure and reproduction of the ground beetle Anisodactylus signatus were studied in central and eastern Hungary. A. signatus is a species with summer as well as winter larvae. Beetles showed two seasonal activity peaks: during mid-June, only ''old'' (overwintered) individuals were caught and this activity coincided with peak egg production; another activity peak occurred in mid-July, when more than 86% of the collected Individuals were ''young''. The activity period of old beetles was shorter in the eastern population. Egg numbers in the ovaries were low (2-10 eggs/gravid female). No eggs were found...
Geographical distribution of the tortricid moth Epinotia cedricida (Lepidoptera: Tortricidae) within the natural and artificial ranges of the cedar trees Cedrus atlantica and C. libani
Eur. J. Entomol. 94 (4): 485-494, 1997
New data concerning geographical distribution of the tortricid moth Epinotia cedricida Diakonoff, a significant insect pest affecting cedars in France, are presented. The species was discovered in Turkey, in two stands of Cedrus libani, where it causes considerable damage. The results of reciprocal crosses between Turkish specimens and specimens native to France and North Africa have confirmed the specific identity of the tortricid. On Cedrus atlantica, E. cedricida is present everywhere in Algeria. In Morocco, it has only been found in three stands of cedar in the Atlas Mountains. With regard to Europe, where the cedar...
Proboscis assembly in butterflies (Lepidoptera) - a once in a lifetime sequence of events
Eur. J. Entomol. 94 (4): 495-501, 1997
The proboscis of butterflies is formed by the linkage of the galeae on their dorsal and ventral sides, thereby enclosing the central food canal. The two galeae, which develop separately in the pupa, can only interlock by a distinct sequence of movements after eclosion. This interlocking process includes a series of uncoiling and recoiling movements which first align the separate galeae into parallel positions. Discharged fluid temporarily holds them together, so that the galeal linking structures can be engaged by sideward movements and anti-parallel displacements of the galeae. During hardening of the cuticle the firm engagement of the structures...
Book Review: Beyond Silent Spring. Integrated Pest Management and Chemical Safety.
Eur. J. Entomol. 94 (4): 502, 1997
van Emden H.F. & Peakall D.B.: Beyond Silent Spring. Integrated Pest Management and Chemical Safety. Chapman & Hall, London, 1996, 322 pp.
The unusual male brush apparatus of Hypopteridia (Lepidoptera: Noctuidae)
Eur. J. Entomol. 94 (4): 503-510, 1997
The male scent organs of Hypopteridia reversa (Moore) are described and compared with other androconial organs occurring in the Mythimnini. Abdominal segments A1-A4 possess an organ composed of a pair of little brushes that are linked to the ends of levers which branch off the posterior margin of sternum A2 and a pair of large pleural hair tufts. In the resting position, the tufts are contained in a complex ventral pouch that consists of a base covered by lateral flaps, the latter of which were created by extensive modifications of segments A3-A4. This configuration has no correspondence in other Noctuidae so far examined and is considered autapomorphic...
The taxonomy and distribution of the genus Anurida (Collembola: Neanuridae) in the northern Palaearctic
Eur. J. Entomol. 94 (4): 511-536, 1997
The paper provides information on taxonomy of Anurida species from the northern Palaearctic. 4 new species (A. azurea, A. palustris, A. tatianae, A. sakhensis) are described and several forms are regarded as junior synonyms, viz. A. tundricola Tshelnokov (= A. alpina Agrell), A. balagannakhi Tshelnokov (= A. annatshagi Tshelnokov), A. nerensis Tshelnokov (= A. beringi Fjellberg), A. jakutica Tshelnokov (= A. bondarenkoae Tshelnokov), A. polychnetosa Tshelnokov (= A. hammerae Christiansen), A. mandibulata Tshelnokov (= A. hammerae Christiansen),...
Book Review: Bugs in System (Insects and Their Impact on Human Affairs).
Eur. J. Entomol. 94 (4): 536, 1997
Berenbaum M.R.: Bugs in System (Insects and Their Impact on Human Affairs). Helix Books, Addison-Wesley, Reading, Massachussets, 1996 (2nd ed.), 377 pp.
New synonymies of chewing lice (Phthiraptera: Amblycera, Ischnocera) described from the Falconiformes (Aves)
PRICE R.D., PALMA R.L., HELLENTHAL R.A.
Eur. J. Entomol. 94 (4): 537-545, 1997
Eighteen new synonymies are given for taxa of chewing lice taken from hosts in the avian order Falconiformes. Colpocephalum Nitzsch, 1818 is synonymized with Falcocephalum Tendeiro, 1989. The latter genus contained a single species which thus becomes a new combination: Colpocephalum pricei (Tendeiro, 1989), comb. n. Further synonymies include 12 species (Colpocephalum turbinatum Denny, 1842 = C. wernecki Orfila, 1959, syn, n.; C. nanum Piaget, 1890 = C. meridionale Pérez-Jiménez et al., 1988, syn. n.; C. trachelioti Price & Beer, 1963 = C. aegypii Tendeiro, 1989, syn. n.; C. ateri...
Book Review: Catalogue of the World's Aphididae (Homoptera, Aphidoidea).
Eur. J. Entomol. 94 (4): 546, 1997
Remaudière G. & Remaudière M.: Catalogue of the World's Aphididae (Homoptera, Aphidoidea). INRA (Route de St. Cyr, F-78026 Versailles) 1997, 478 pp.
The genus Curriea in Europe and the Canary Islands (Hymenoptera: Braconidae: Braconinae)
FALCO J.V., QUICKE D.L.J.
Eur. J. Entomol. 94 (4): 547-552, 1997
The genus Curriea Ashmead is recorded from Europe. Endovipio Turner is downgraded to a subgenus of Curriea. Curriea (Endovipio) jacobsoni (Tobias) comb. n. is redescribed in order to draw at tention to previously overlooked characters, and a new combination is designated. The species is recorded for the first time from Spain, France, Morocco, Senegal and the Canary Islands.
Hatching ability of Bombyx mori (Lepidoptera: Bombycidae) eggs micro-injected with different concentrations of DNA at selected embryonic stages
SHAMILA Y., MATHAVAN S.
Eur. J. Entomol. 94 (4): 553-555, 1997
The hatching ability of Bombyx mori eggs subjected to microinjection of about 30 nl plasmid DNA (10 µg/ml) at 1-30 h of embryonic development and eggs injected at 8 h with DNA concentrations (0.5 to 500 µg/ml), averaged to about 22%. In respect to hatching ability, the optimum stage for microinjection is the preblastoderm (8-10 h old eggs) and the DNA concentration up to 10 µg/ml.
Book Review: Proceedings of the 9th International Symposium on Insect-Plant Relationships.
Eur. J. Entomol. 94 (4): 556, 1997
Städler E., Rowell-Rahier M. & Baur R. (eds): Proceedings of the 9th International Symposium on Insect-Plant Relationships. Kluwer Academic Publishers, Dordrecht, Boston, London, 1996, xi + 336 pp.
Interspecific recognition through odours by aphids (Sternorrhyncha: Aphididae) feeding on wheat plants
JOHANSSON C., PETTERSSON J., NIEMEYER H.M.
Eur. J. Entomol. 94 (4): 557-559, 1997
In olfactometric experiments a wingless adult of Sitobion avenae was attracted by odours of a wingless adult of Rhopalosiphum padi feeding on a wheat plant. When the stimulus consisted of either a wingless R. padi without plant material or a wheat plant that had previously been infested by a wingless R. padi, the response by S. avenae was not significant, suggesting that recognition is due to volatiles produced by the combination of an aphid and a plant.
Book Review: Name that Insect: A Guide to the Insects of Southeastern Australia.
Eur. J. Entomol. 94 (4): 560, 1997
New T.R.: Name that Insect: A Guide to the Insects of Southeastern Australia. Oxford University Press, Melbourne, 1996, vi + 194 pp., 73 b/w plates.
Impact of Vairimorpha ephestiae (Microsporidia: Nosematidae) on Bracon hebetor (Hymenoptera: Braconidae), an external parasite of the American bollworm, Heliothis armigera (Lepidoptera: Noctuidae)
MOAWED S.M., MAREI S.S., SALEH M.R., MATTER M.M.
Eur. J. Entomol. 94 (4): 561-565, 1997
The impact of the microsporidium Vairimorpha ephestiae on the parasitoid Bracon (= Habrobracon) hebetor increased by increasing the concentration of spores to which its host, Heliothis amigera was exposed. Infecting parasitized hosts with the microsporidia did not significantly affect either the egg or larval duration of the parasitoid, while it caused significant prolongation in pupal duration of B. hebetor. However, infected parasitized hosts produced female parasitoids with reduced longevity, oviposition period and fecundity.
It was concluded that the detrimental impact on the parasitoid might be related...
Book Review: Aquatic Insects of North Europe: A Taxonomic Handbook.
Eur. J. Entomol. 94 (4): 565-566, 1997
Nilsson A. (ed.): Aquatic Insects of North Europe: A Taxonomic Handbook. Apollo Books, Stenstrup, Denmark, 1996, 274 pp.
Macropterous form of Dorypteryx domestica (Psocoptera: Psyllipsocidae)
Eur. J. Entomol. 94 (4): 567-573, 1997
The macropterous form of psocid Dorypteryx domestica (Smithers, 1958), previously only known as brachypterous, is described. The macropterous individuals were reared from brachypterous parents in a laboratory culture. Morphology of macropterous male and female and wing variation is given. Wing polymorphism in psocids is discussed.
Book Review: The Evolution of Insect Flight.
Eur. J. Entomol. 94 (4): 574-576, 1997
Brodsky A.K.: The Evolution of Insect Flight. Oxford University Press, Oxford, New York, Tokyo, 1994, xiv + 229 pp.
Book Review: Catalogue of the Sarcophagidae of the World (Insecta: Diptera).
Eur. J. Entomol. 94 (4): 577-578, 1997
Pape T.: Catalogue of the Sarcophagidae of the World (Insecta: Diptera). Associated Publishers, Gainesville, 1996, 558 pp.
Eur. J. Entomol. 94 (4): 579-580, 1997