EJE, vol. 106 (2009), issue 3
Genetic diversity of the xerothermic weevils Polydrusus inustus and Centricnemus leucogrammus (Coleoptera: Curculionidae) in central Europe
Lukasz KAJTOCH, Dorota LACHOWSKA-CIERLIK, Mieczyslaw MAZUR
Eur. J. Entomol. 106 (3): 325-334, 2009 | 10.14411/eje.2009.040
Phylogeography, genetic diversity, and demography of central European populations of two flightless xerothermic weevils, Polydrusus inustus and Centricnemus leucogrammus, were studied based on the polymorphism of three mtDNA genes (COII, CytB, and ND1). Results indicate that these xerothermic beetles may have different origins. P. inustus is a recent migrant as the parthenogenetic form has a low level of genetic diversity and lacks a geographic population structure. This is probably a result of a recent (before the end of last glaciation) expansion and/or present dispersal mediated by humans. On the other hand, C. leucogrammus...
Apoptosis of neuronal cells in the brains of postembryonic silkworms Bombyx mori (Lepidoptera: Bombycidae)
Mi Young KIM, Kang Kim MIN, Chang Ok CHOI, Hwa Young SONG, Chang Lee SEOK, Bong Woo KIM, Pil Don KANG, Soung Hoo JEON, Byung Pil CHO, Yeon Jae BAE, Young-Gyo KO, Bong Lee HEE
Eur. J. Entomol. 106 (3): 335-345, 2009 | 10.14411/eje.2009.041
The pattern and signal transduction of neuronal apoptosis in the brain of the silk moth, Bombyx mori, during postembryonic life, were characterized. Peak numbers of apoptotic neurons were detected in 4 day old 4th instar larvae, 9 day old 5th instar larvae and 4 day old pupae, indicating three waves of neuronal apoptosis during postembryonic development. Most of the apoptotic neurons were in the lateral portions of the brain. No apoptotic neurons were detected in 1 day old 1st instar larvae or in 7 day old pupae to 1 day old adults. Injection of 20-hydroxyecdysone (20E) into larvae resulted in a substantial increase in the brain in both neuronal...
Phenotypic plasticity in sperm traits in scorpionflies (Mecoptera: Panorpidae): Consequences of larval history and seasonality on sperm length and sperm transfer
Andreas VERMEULEN, Sierk ENGELS, Leif ENGQVIST, Klaus Peter SAUER
Eur. J. Entomol. 106 (3): 347-352, 2009 | 10.14411/eje.2009.042
We examined effects of seasonality, larval food availability and larval rearing density on sperm length, sperm transfer rates and body size in the bivoltine scorpionfly Panorpa vulgaris. Males of the first annual generation were larger and had larger sperm. Comparing individuals of two summer generations showed that adult males resulting from group bred, ad libitum fed larvae were larger but had smaller sperm than males resulting from singly kept, food deprived larvae. Thus, sperm size is not a simple function of body size. Instead, we suggest that sperm size modification was caused by varying rearing densities. Group bred individuals produced...
Investment in cocoon-silk and structure of the clusters of cocoons produced by gregarious microgastrine wasps (Hymenoptera: Braconidae)
Jun TAGAWA, Yoshibumi SATO
Eur. J. Entomol. 106 (3): 353-356, 2009 | 10.14411/eje.2009.043
After leaving their hosts, the larvae of endoparasitic braconid wasps pupate in cocoons. To determine their investment in cocoon silk, the dry weight of newly emerged wasps and that of the empty cocoons were measured for three gregarious braconid species of slightly different sizes: Glyptapanteles liparidis (Bouché), Cotesia glomerata (L.) and Cotesia kariyai (Watanabe) (Hymenoptera: Braconidae, Microgastrinae). These braconids form clusters of cocoons of different types. Glyptapanteles liparidis is significantly larger than either of the Cotesia species, and C. kariyai is the smallest. The ratio of the weight...
Aristolochic acids affect the feeding behaviour and development of Battus polydamas archidamas larvae (Lepidoptera: Papilionidae: Troidini)
Carlos F. PINTO, Alejandra J. TRONCOSO, Alejandro URZÚA, Hermann M. NIEMEYER
Eur. J. Entomol. 106 (3): 357-361, 2009 | 10.14411/eje.2009.044
The feeding behaviour of specialist butterflies may be affected by the mechanical and chemical characteristics of the tissues of their host-plants. Larvae of the butterfly, Battus polydamas archidamas feed only on Aristolochia chilensis, which contains aristolochic acids. We studied the oviposition pattern of adults and the foraging of larvae of B. polydamas archidamas over time in relation to variations in hardness of the substrate and concentration of aristolochic acids in different plant tissues. We further tested the effect of two artificial diets containing different concentrations of aristolochic acids on larval performance....
Gadau J. & Fewell J. (eds): ORGANIZATION OF INSECT SOCIETIES, FROM GENOM TO SOCIOCOMPLEXITY.
Eur. J. Entomol. 106 (3): 361-362, 2009 | 10.14411/eje.2009.045
Harvard University Press, Cambridge, MA, and London, UK, 2009, 617 pp., hard cover. ISBN 978-0-674-03125-8. Price USD 79.95.
Effect of female size on host selection by a koinobiont insect parasitoid (Hymenoptera: Braconidae: Aphidiinae)
Dionyssios LYKOURESSIS, Nikolaos GARANTONAKIS, Dionyssios PERDIKIS, Argyro FANTINOU, Andronikos MAUROMOUSTAKOS
Eur. J. Entomol. 106 (3): 363-367, 2009 | 10.14411/eje.2009.046
Body size is a main fitness component of insect parasitoids. We assessed the potential influence of maternal size of the parasitoid wasp Aphidius colemani Viereck (Hymenoptera: Braconidae: Aphidiinae) on its ability to parasitize the different instars of Aphis gossypii Glover (Hemiptera: Aphididae) on eggplant and cucumber. In the experiments "small" vs "large" parasitoid females were used. Females oviposited in all instars but more of the smaller hosts were parasitized. Host selection was affected by female size and the larger hosts were more frequently mummified by the large than the small females. Thus, parasitoid female size...
Heteropterans as aphid predators in inter-mountain alfalfa
Xavier PONS, Belén LUMBIERRES, Ramon ALBAJES
Eur. J. Entomol. 106 (3): 369-378, 2009 | 10.14411/eje.2009.047
The relationships between predatory Heteroptera and their potential prey species were investigated during two crop seasons in an inter-mountain area close to the Pyrenees (Iberian Peninsula). Regression was used to analyze the potential numerical responses shown by heteropterans to aphids and other potential prey during alfalfa intercuts (the plant growth period between cuts) of high aphid occurrence. The most abundant heteropterans were Orius spp., Nabis spp. and mirids, and all were present in alfalfa stands throughout the season. Acyrthosiphon pisum was the prevalent species during the 2nd intercut, Therioaphis...
Sociality improves larval growth in the stag beetle Figulus binodulus (Coleoptera: Lucanidae)
Hideaki MORI, Satoshi CHIBA
Eur. J. Entomol. 106 (3): 379-383, 2009 | 10.14411/eje.2009.048
The benefits for offspring of attendant adult were investigated in the stag beetle Figulus binodulus. The initial growth rate of third-instar larva was significantly higher when the larvae were in a nest with adults compared to those in a nest without adults. The difference in growth rate is reflected in adult body size. Although the presence of adult beetle generally benefited the offspring, the adults did eat some of the larvae. Filial cannibalism was the primary cause of juvenile death in nests with adults. Mortality was lower in nests with adults related to the juveniles compared to nests with unrelated adults, suggesting that infanticide...
Spatial population structure of the predatory ground beetle Carabus yaconinus (Coleoptera: Carabidae) in the mixed farmland-woodland satoyama landscape of Japan
Yoshitake KAGAWA, Kaoru MAETO
Eur. J. Entomol. 106 (3): 385-391, 2009 | 10.14411/eje.2009.049
To conserve the predators and parasitoids of agricultural pests it is necessary to understand their population structure in a mixed landscape, and to consider the spatial and temporal changes in their distribution and movement of adults and larvae. We studied the distribution and movement of the ground beetle Carabus yaconinus (Coleoptera: Carabidae), which inhabits farmland-woodland landscapes. We placed a large number of pitfall traps along the border between a wood and an orchard and counted the number of C. yaconinus adults and larvae caught in the traps from 13 April to 28 June 2005. Some of the adults were marked before they were...
Patterns of morphometric variation among species of the genus Cicada (Hemiptera: Cicadidae) in the Mediterranean area
Paula Cristina SIMÕES, José Alberto QUARTAU
Eur. J. Entomol. 106 (3): 393-403, 2009 | 10.14411/eje.2009.050
Selected populations of five closely related species of the genus Cicada L. were collected mainly on the Portuguese, Greek and Turkish mainland, as well as on several Aegean islands. Ten morphometric traits of external structures and seven of male genitalia were analysed and the results revealed patterns in morphometric variation for each species. Only C. lodosi was always completely discriminated by both character sets and C. barbara by the male genitalia analysis. For the remaining species there was great overlap between the clusters. Body length, of the external morphological structures, and measurements of the pygophore, of...
Gay T., Kehimkar I.D. & Punetha J.: Butterflies of India
Eur. J. Entomol. 106 (3): 404, 2009 | 10.14411/eje.2009.051
Oxford University Press, New Delhi, 2008, 71 pp., ISBN 978-0-19-568801-6.
Identification and biological traits of a planthopper from the genus Pentastiridius (Hemiptera: Cixiidae) adapted to an annual cropping rotation
Alberto BRESSAN, Werner E. HOLZINGER, Benoit NUSILLARD, Olivier SÉMÉTEY, Frédéric GATINEAU, Mauro SIMONATO, Elisabeth BOUDON-PADIEU
Eur. J. Entomol. 106 (3): 405-413, 2009 | 10.14411/eje.2009.052
Cixiid planthoppers have been shown to vector phloem-limited prokaryotes associated with plant diseases world-wide. In eastern France, an emerging disease of sugar beet called syndrome "basses richesses" has been associated with phloem-restricted bacteria transmitted by a cixiid planthopper within the genus Pentastiridius. Early investigation suggested the species being Pentastiridius beieri. On the basis of a morphological and phylogenetic study we report the identification of the planthopper as Pentastiridius leporinus. Furthermore we report some biological traits of the species, which shows a surprising ecological adaptation...
Faunal patterns in tenebrionids (Coleoptera: Tenebrionidae) on the Tuscan Islands: The dominance of paleogeography over Recent geography
Eur. J. Entomol. 106 (3): 415-423, 2009 | 10.14411/eje.2009.053
The tenebrionid fauna of the Tuscan Islands (Central Italy) is well known and is an ideal system for studying the role of current and historical factors in determining the biogeographical patterns in a complex archipelago. Cluster analyses, species-area relationships and Mantel tests were used to investigate the influence of current geography and Pleistocene connections with the mainland on the structure of insular communities. Current biogeographical similarity patterns fit both Pleistocene and Recent geography, but marked effects of Pleistocene geography appeared when the influence of Recent geography was removed. Thus, in contrast to more mobile...
West Palaearctic species of the genus Eloeophila (Diptera: Limoniidae)
Eur. J. Entomol. 106 (3): 425-440, 2009 | 10.14411/eje.2009.054
A review of West Palaearctic species of the genus Eloeophila Rondani, 1856 is presented. Three species are redescribed, viz. E. czernyi (Strobl in Czerny & Strobl, 1909), E. laciniata (Edwards, 1928), and E. pusilla (Kuntze, 1920). A lectotype of the latter is designated. Eloeophila albofascia (Alexander, 1975) is established as a new junior synonym of E. apicata (Loew, 1871). Descriptions are provided of E. bipartita sp. n. (North Italy), E. delmastroi sp. n. (North Italy), E. lucasi sp. n. (South Italy and Sicily), E. maroccana sp. n. (Morocco, Spain), E. martinovskyi...
Revision of the Iteaphila setosa group (Diptera: Empididae)
Igor V. SHAMSHEV, Bradley J. SINCLAIR
Eur. J. Entomol. 106 (3): 441-450, 2009 | 10.14411/eje.2009.055
Six species are identified in the Iteaphila setosa group [I. arundela sp. n., I. caucasica sp. n., I. italica Loew, 1873, I. kubaniensis sp. n., I. merzi sp. n., I. setosa (Bezzi, 1924)]. This species group is distributed from southern England in the west, through southern Europe and northern Africa, to the Caucasus and Middle Asia (Uzbekistan).
Potential role of hydrogen peroxide and melanin in the cold hardiness of Ostrinia nubilalis (Lepidoptera: Pyralidae)
Danijela KOJIC, Ivan SPASOJEVIC, Milo¹ MOJOVIC, Du¹ko BLAGOJEVIC, M. Roger WORLAND, Gordana GRUBOR-LAJSIC, Mihajlo B. SPASIC
Eur. J. Entomol. 106 (3): 451-454, 2009 | 10.14411/eje.2009.056
The aim of this study was to investigate the relationship between antioxidant enzymes and reactive oxygen species production in diapausing larvae of the European corn borer, Ostrinia nubilalis (Lepidoptera: Pyralidae) kept at 5°C, -3°C and -16°C for two weeks. The amount of hydrogen peroxide (H2O2), activity of antioxidant enzymes, copper zinc superoxide dismutase (CuZnSOD), manganese superoxide dismutases (MnSOD) and catalase (CAT) in whole body homogenates, as well as the electron paramagnetic resonance (EPR) spectroscopy of this insect's whole body were analysed. A higher level of melanin radical and lower CuZnSOD and...
Bellamy C.L.: A WORLD CATALOGUE AND BIBLIOGRAPHY OF THE JEWEL BEETLES (COLEOPTERA: BUPRESTOIDEA). Vols 1-5.
Eur. J. Entomol. 106 (3): 455-456, 2009 | 10.14411/eje.2009.057
Pensoft Series Faunistica No. 76. Pensoft Publishers, Sofia, Moscow, 2008 (Vol. 1-4), 2009 (Vol. 5). 3264 pp. ISBN 978-954-642-317-7 (HB) (Vols 1-5). Price EUR 600 (EUR 120 each Vol.).