EJE, vol. 100 (2003), issue 1
Acta Societatis Entomologicae Bohemiae.
Eur. J. Entomol. 100 (1): 2003
Searching and reproductive behaviour of female aphidophagous ladybirds (Coleoptera: Coccinellidae): a review
Edward W. EVANS
Eur. J. Entomol. 100 (1): 1-10, 2003 | 10.14411/eje.2003.001
In searching both for food to produce eggs and for suitable oviposition sites, females of aphidophagous ladybirds must be adapted to exploit prey that vary greatly in their occurrence and abundance over both space and time. A simple model of ladybird searching and oviposition behaviour emerged in the 1950s: adult ladybirds are highly mobile in traversing the landscape, but become less active and produce more eggs as their rate of aphid consumption increases. The net result is that most eggs tend to be laid at sites of high aphid density. Laboratory and field experiments and observations over the past several decades have generally supported this basic...
Meiosis and fluorescent banding in Edessa meditabunda and E. rufomarginata (Heteroptera: Pentatomidae: Edessinae)
Pablo J. REBAGLIATI, Alba G. PAPESCHI, Liliana M. MOLA
Eur. J. Entomol. 100 (1): 11-18, 2003 | 10.14411/eje.2003.002
Species of Pentatomidae are cytogenetically characterized by the presence of holokinetic chromosomes, a pre-reductional type of meiosis, and a great constancy not only in chromosome number (2n = 14 in 85% of the 250 species analyzed) but also in the sex chromosome determining system (XY/XX).
Edessa meditabunda and E. rufomarginata males have 2n = 14 = 12 + XY, and both species present small telomeric positively heteropycnotic bands which are DAPI and CMA bright. In E. meditabunda the NOR region is clearly revealed at the telomeric region of the largest autosomal pair by silver staining and CMA banding. Meiotic behaviour of both...
Thin layer chromatographic analysis of pteridine-like pigments in the migratory locust, Locusta migratoria migratorioides (Orthoptera: Oedipodidae)
Vßclav N╠MEC, Michael BREUER, Arnold DE LOOF
Eur. J. Entomol. 100 (1): 19-23, 2003 | 10.14411/eje.2003.003
Acidic methanolic extracts of haemolymph, cuticle and eyes of larvae and adults of the migratory locust, Locusta migratoria migratorioides (R. et L.), were subjected to thin layer chromatography. The Rf-values as well as the fluorescent colour of the spots under ultraviolet illumination at 350 nm, were compared to those of 12 pteridine standards. Most of the standards showed a major spot, as well as up to 3 additional minor spots, probably due to the presence of isomers and degradation products. The extract of the haemolymph of untreated larvae and adults yielded 6 different spots. Cuticle and eyes had their own specific pattern. Application...
BOOK REVIEW: Jolivet P. & Verma K.K.: Biology of Leaf Beetles.
J. BEZD╠K, A. BEZD╠K
Eur. J. Entomol. 100 (1): 24, 2003 | 10.14411/eje.2003.004
Intercept Ltd, Andover, 2002, 332 pp. ISBN 1-898298-86-6. Price GBP 52.50.
Opposite changes in the resistance to cold and desiccation, which occur during the development of the millipede Polydesmus angustus (Diplopoda: Polydesmidae)
Jean-Franšois DAVID, Jean-Jacques GEOFFROY, Guy VANNIER
Eur. J. Entomol. 100 (1): 25-30, 2003 | 10.14411/eje.2003.005
Supercooling point (SCP), survival at low temperatures, rate of water loss in dry air at 20░C and survival under desiccating conditions of eggs of Polydesmus angustus (Diplopoda) were determined. The results were compared with those obtained previously for the eight post-embryonic stadia, to obtain an overview of the changes in resistance to cold and desiccation throughout the species' development. The SCP temperatures of egg batches ranged from -14.8 to -30.6░C and were significantly lower than those of the active stadia. Eggs were not affected by prolonged exposure to low temperature above 0░C and survived much better than active stadia when...
Inter- and intraclonal variability in the photoperiodic response and fecundity in the pea aphid Acyrthosiphon pisum (Hemiptera: Aphididae)
Eur. J. Entomol. 100 (1): 31-37, 2003 | 10.14411/eje.2003.006
Interclonal variability in the photoperiodic responses of the pea aphid Acyrthosiphon pisum and intraclonal differences between wingless viviparous females (=apterae) and winged viviparous females (=alatae) were studied. In 7 clones collected from peas near St.Petersburg the effect of constant diel photoperiods (from 0L : 24D to 24L : 0D at 20░C) on sexual morph determination and dynamics of morph production were recorded. Apterae of 5 clones and apterae and alatae of 2 clones were studied. The mean and age-dependent fecundity of apterae and alatae were compared. The clones studied in detail can be divided in two groups. The first includes clones...
BOOK REVIEW: Dangerfield P., Austin A. & Baker G.: Biology, Ecology & Systematics of Australian Scelio: Wasp Parasitoids of Locusts and Grasshopers Eggs.
Eur. J. Entomol. 100 (1): 38, 2003 | 10.14411/eje.2003.007
CSIRO Publishing, 150 Oxford street (P.O. Box 1139), Collingwood VIC 3066, Australia, 2001, 254 pp. ISBN 0-634 06703-5, price AUD 170.00.
Diet nutriment and rearing density affect the growth of black blowfly larvae, Phormia regina (Diptera: Calliphoridae)
Paul W.C. GREEN, Monique S.J. SIMMONDS, Wally M. BLANEY
Eur. J. Entomol. 100 (1): 39-42, 2003 | 10.14411/eje.2003.008
Larvae of Phormia regina (Meigen) (Diptera: Calliphoridae) were reared, in isolation, upon either lamb's liver or meridic diets that varied in protein- and carbohydrate-content. An artificial diet containing 53% protein (by mass of dry ingredients) resulted in the heaviest P. regina pupae and shortest development time when compared with larvae reared upon lamb`s liver and all other diets. In diets where the concentration of protein was less than that of carbohydrate, the level of carbohydrate became important. In a diet containing 22.6% protein it was neither the diet with the highest (51%) nor lowest (17%) concentration of carbohydrate...
The influence of female oviposition strategy on sibling cannibalism in the ladybird beetle Harmonia axyridis (Coleoptera: Coccinellidae)
Eur. J. Entomol. 100 (1): 43-48, 2003 | 10.14411/eje.2003.009
I hypothesized that sibling cannibalism is one of maternal investment in that a female controls sibling cannibalism. To test the hypothesis, I conducted a laboratory experiment and field observations to investigate sibling cannibalism in relation to cluster size and cluster site in the ladybird beetle, Harmonia axyridis Pallas. In the laboratory experiment, cluster size significantly affected the number of cannibalized eggs per cluster (R2 = 0.516), while cluster size was significantly affected by the oviposition interval. Furthermore, there was a marginally significant positive relationship between cluster size and the percentage of sibling...
Acceptance and suitability of Acyrthosiphon pisum and Sitobion avenae as hosts of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae)
Pauline DAZA-BUSTAMANTE, Eduardo FUENTES-CONTRERAS, Hermann M. NIEMEYER
Eur. J. Entomol. 100 (1): 49-53, 2003 | 10.14411/eje.2003.010
Aphidius ervi Haliday is a parasitoid of natural populations of both Acyrthosiphon pisum (Harris) on alfalfa and Sitobion avenae (Fabricius) on wheat in Chile. In this study the performance of the aphid parasitoid on both host species was evaluated. Regardless of origin, both females and males of A. ervi were significantly smaller when reared on S. avenae than on A. pisum. Males and females of A. ervi reared on S. avenae on wheat also took significantly longer to develop than when reared on A. pisum. There was no significant difference in the sex ratio of the parasitoid when reared on these...
BOOK REVIEW: Dudley R.: The Biomechanics of Insect Flight. Form, Function, Evolution.
Eur. J. Entomol. 100 (1): 54, 2003 | 10.14411/eje.2003.011
Princeton University Press, Princeton, 2000, xii + 476 pp. ISBN 0-691-04430-9, Hardcover, Price USD 36.95.
Body size and mating success in Pyrrhocoris apterus (Heteroptera)
Eur. J. Entomol. 100 (1): 55-60, 2003 | 10.14411/eje.2003.012
The effects of body size on mating success and duration of copulation were investigated in Pyrrhocoris apterus. Under laboratory conditions relative mating success of small and large males was investigated in groups of 2 males (majority sex) : 1 female (minority sex). Large males were recorded significantly more often in copulation than small males when the female was large but not when the female was small. This was also the case when the group size was 24 males : 12 females or population density decreased by increasing the area of the experimental arena. In groups of 2females : 1 male, large females were recorded in copulation significantly...
Habitat use and maternal care of Phloea subquadrata (Hemiptera: Phloeidae) in the Brasilian Atlantic forest (Espirito Santo)
Eur. J. Entomol. 100 (1): 61-63, 2003 | 10.14411/eje.2003.013
Phloea subquadrata (Hemiptera, Phloeidae) was observed in two natural reserves of the Brazilian Atlantic forest near Linhares (Espirito Santo). This species exhibits maternal care which is also known for the two other species of the family: Phloea corticata and Phloeophana longirostris. They protect the eggs and also the larvae from predation by covering them with their body. Such behavior is known for other species of Hemiptera, but with some variations. The evolutionary significance of phloeid behaviour is discussed with reference to the behaviour of Hemiptera in general.
The effects of flooding on survivorship in overwintering larvae of the large copper butterfly Lycaena dispar batavus (Lepidoptera: Lycaenidae), and its possible implications for restoration management
Colin N. NICHOLLS, Andrew S. PULLIN
Eur. J. Entomol. 100 (1): 65-72, 2003 | 10.14411/eje.2003.014
Previous work suggests that submergence of Lycaena dispar larvae during overwintering may play a significant role in this butterfly's population dynamics. Since potential re-introduction sites in eastern England are prone to regular seasonal flooding, we further studied the species' submergence tolerance with a view to formulating management protocols conducive to larval survivorship under periodic flood conditions. Simulated flooding regimes using captive-reared larvae showed that enforced submergence has a twofold effect: firstly, a direct increase in mortality after 28 days under water and, secondly, a longer term, post-diapause increase...
Urbanization effects on carabid diversity in boreal forests
Stephen J. VENN, D. Johan KOTZE, Jari NIEMEL─
Eur. J. Entomol. 100 (1): 73-80, 2003 | 10.14411/eje.2003.015
Carabid abundance, species richness and diversity were compared along an urban-rural gradient in Helsinki, Finland. Increased urbanization was found to result in significant reductions in species richness, though the reductions in abundance and diversity were not statistically significant. Forest habitat-specialist species were scarce in rural sites and virtually absent from urban and suburban sites. There was no evidence of higher diversity at intermediate disturbance levels (suburban sites), as predicted by the intermediate disturbance hypothesis. Species with flight ability and the ability to utilize open habitat were more predominant in urban and...
The potential of carabid beetles (Coleoptera) to reduce slug damage to oilseed rape in the laboratory
Frank OBERHOLZER, Natalie ESCHER, Thomas FRANK
Eur. J. Entomol. 100 (1): 81-85, 2003 | 10.14411/eje.2003.016
Slugs are important pests of many agricultural crops, especially oilseed rape. The carabid beetles Pterostichus melanarius Illiger and Poecilus cupreus L. are among the most abundant large carabid beetles of European arable land and were therefore explored as potential slug antagonists. Damage to oilseed rape caused by the slugs Deroceras reticulatum MŘller and D. laeve MŘller in the presence or absence of P. melanarius and P. cupreus was observed in the laboratory. Whereas P. cupreus failed to reduce damage to oilseed rape by D. reticulatum, P. melanarius significantly reduced slug damage....
Serratia marcescens as a bacterial pathogen of Rhagoletis pomonella flies (Diptera: Tephritidae)
Carol R. LAUZON, Teresa G. BUSSERT, Robert E. SJOGREN, Ronald J. PROKOPY
Eur. J. Entomol. 100 (1): 87-92, 2003 | 10.14411/eje.2003.017
A nonpigmenting strain of Serratia marcescens Bizio isolated from dead and apparently diseased wild apple maggot flies, Rhagoletis pomonella (Walsh), was shown to be pathogenic to healthy apple maggot flies upon ingestion. The microorganism was detected in live adult alimentary canal organs four days post ingestion but produced death in some flies within 24 h when flies fed on a cell concentration of 4.7 Î 104 cfu/ml and within 8 h when flies fed on filter-sterilized culture medium that previously contained a 21 h culture of S. marcescens. Increasing the cell concentration 10,000 fold did not lead to an increased...
Emergence of the damselflies, Coenagrion mercuriale and Ceriagrion tenellum (Odonata: Coenagrionidae), at their northern range margins, in Britain
Bethan V. PURSE, David J. THOMPSON
Eur. J. Entomol. 100 (1): 93-99, 2003 | 10.14411/eje.2003.018
Emergence of Coenagrion mercuriale and Ceriagrion tenellum was examined in a mixed population at their northern range margin in Britain. Mortality at emergence was quantified in C. mercuriale. Consistent with their larval diapause characteristics, both species had an asynchronous emergence pattern, typical of "summer" species. Daily emergence of C. mercuriale was positively correlated with the duration of sunlight on the previous day (controlling for season) and its emergence period was found to be shorter than that observed in its core populations in Central and Mediterranean Europe. No differences were found between the...
Revision and hypothetical phylogenetic analysis of the species of the New World genus Ataeniopsis (Coleoptera: Aphodiinae: Eupariini)
Zdzis│awa T. STEBNICKA
Eur. J. Entomol. 100 (1): 101-113, 2003 | 10.14411/eje.2003.019
The New World genus Ataeniopsis Petrovitz, 1973 is revised. Fifteen species are recognized including three new species: Ataeniopsis carupanoi sp. n. from Venezuela, A. jaltipani sp. n. from Mexico and A. vinacoensis sp. n. from Argentina. Lectotype of A. haroldi (Steinheil, 1872) is designated, the name of type species A. notabilis Petrovitz, 1973 is reestablished, five species are given in a new combination. The taxa are diagnosed, keyed and illustrated, and biological information and distribution data summarized following the species descriptions. A hypothetical phylogenetic analysis of Ataeniopsis...
The female genitalia of the genus Zabrus (Coleoptera: Carabidae: Zabrini). I. The general structure and the subgenera Zabrus, Euryzabrus, Platyzabrus and Epomidozabrus.
Vicente M. ORTUÑO, JosÚ SERRANO, Antonio AND┌JAR, JosÚ L. LENCINA
Eur. J. Entomol. 100 (1): 115-121, 2003 | 10.14411/eje.2003.020
The systematics of the genus Zabrus Clairville, 1806 is currently based on morphological characters that show a high degree of parallelism. The aim of this study is to find new characters in the female genitalia, which give a better understanding of the phylogeny of the genus and result in a new classification based on monophyletic taxa (subgenera and species groups). For this purpose slides of the whole female reproductive tract were studied under light microscopy and the gonocoxa IX under scanning microscopy. The study of species belonging to eight subgenera of Zabrus, and of twelve subgenera of its sister taxon Amara, shows...
BOOK REVIEW: Buchar J. & Ruzicka V.: Catalogue of Spiders of the Czech Republic.
Eur. J. Entomol. 100 (1): 122, 2003 | 10.14411/eje.2003.021
Edited by Peter Merrett. Praha, Peres, 2002, 351 pages.
Test of the correlation between body size and DNA content in Pimelia (Coleoptera: Tenebrionidae) from the Canary Islands
Miquel PALMER, Eduard PETITPIERRE, Joan PONS
Eur. J. Entomol. 100 (1): 123-129, 2003 | 10.14411/eje.2003.022
Comparative analyses of interspecific data in evolutionary biology usually require specific methods to remove the effects of phylogenetic inertia. When phylogenetic inertia is not considered, the Canarian Pimelia species show a positive, and almost significant (Prob. = 0.066) correlation between nuclear genome size and body size. However, after controlling for phylogenetic inertia there was a negative and significant correlation (Prob. = 0.007 to 0.017, depending on the DNA fraction considered). Such a change in the relationship after controlling for phylogenetic inertia is rarely reported. Moreover, the relationship usually reported is positive...
Larval morphology and biology of four Netocia and Potosia species (Coleoptera: Scarabaeoidea: Cetoniidae: Cetoniinae)
EstefanÝa MICË, Eduardo GALANTE
Eur. J. Entomol. 100 (1): 131-142, 2003 | 10.14411/eje.2003.023
The larvae of Netocia morio (Fabricius, 1781), Netocia oblonga (Gory & Percheron, 1833), Potosia opaca (Fabricius, 1787) and Potosia cuprea brancoi Baraud 1992 are described. Comparison of the morphology of both genera revealed important differences in raster structure, mandibles and frontal setae. The systematic position of both genera based on larval characteristics is discussed. Some aspects of larval biology are discussed.
Biology and immature stages of the clam-killing fly, Renocera pallida (Diptera: Sciomyzidae)
Eur. J. Entomol. 100 (1): 143-151, 2003 | 10.14411/eje.2003.024
The larva of the Palaearctic Renocera pallida (FallÚn, 1820) is confirmed as a predator of small species of bivalve molluscs of the family Sphaeriidae. To date only the larvae of three Nearctic Renocera species (and larvae of two other species of Sciomyzidae in two genera) are known to have the same food preference. The life cycle, biology, larval feeding and behaviour are described for the first time and compared with that of the Nearctic Renocera. The systematic position and biology of Renocera in general are discussed. Descriptions of the egg, second and third larval instars and the puparium of R. pallida...
A review of Palaearctic Gymnophora Macquart (Diptera: Phoridae), with description of new species
Mikhail B. MOSTOVSKI, Marina V. MIKHAILOVSKAYA
Eur. J. Entomol. 100 (1): 153-165, 2003 | 10.14411/eje.2003.025
Palaearctic species of the genus Gymnophora are reviewed. Four new species, G. amurensis sp. n., G. gornostaevi sp. n., G. perpropinqua sp. n., and G. victoria sp. n., are described from the European Russia, Middle Asia, and Russian Far East. Females of two other species from the Far East are described under code letters. G. laciniata Michailovskaya, 1997 is synonymised under G. prescherweberae Disney, 1997. Lectotypes of G. arcuata (Meigen, 1839) and G. verrucata (Schmitz, 1929) are designated. The latter species is redescribed. Palaearctic females of G. nigripennis demonstrate...
The Empis (Coptophlebia) hyalea-group from Thailand, with a discussion of the worldwide distribution of this species group (Diptera: Empididae: Empidinae)
Christophe DAUGERON, Patrick GROOTAERT
Eur. J. Entomol. 100 (1): 167-179, 2003 | 10.14411/eje.2003.026
The Empis (Coptophlebia) hyalea-group is especially diversified in the Oriental region and is here partly reviewed. Twelve new species from Thailand are described and keyed, namely Empis (Coptophlebia) atratata sp. n., E. (C.) kosametensis sp. n., E. (C.) lamruensis sp. n., E. (C.) miranda sp. n., E. (C.) nahaeoensis sp. n., E. (C.) nganga sp. n., E. (C.) pakensis sp. n., E. (C.) pseudospinotibialis sp. n., E. (C.) pulchra sp. n., E. (C.)...
BOOK REVIEW: Amiet F., Herrmann M., MŘller A. & Neumeyer R.: Fauna Helvetica 6. Apidae 3 (Halictus, Lasioglossum).
Eur. J. Entomol. 100 (1): 180, 2003 | 10.14411/eje.2003.027
Centre suisse de cartographie de la faune (CSCF), NeuchÔtel, 2001, 208 pp., 250 figs, 96 distrib. maps.
Camptibia obscura, gen. and sp. n. (Heteroptera: Reduviidae: Harpactorinae) from China
Wanzhi CAI, Masaaki TOMOKUNI
Eur. J. Entomol. 100 (1): 181-185, 2003 | 10.14411/eje.2003.028
A new harpactorine reduviid, Camptibia obscura, gen. et sp. n., from China is described. A key to related genera is provided. The functional morphology of the fore legs of this species is discussed.
BOOK REVIEW: Sartori M. & Landolt P.: Atlas of Distribution of Mayflies of Switzerland.
Eur. J. Entomol. 100 (1): 186, 2003 | 10.14411/eje.2003.029
Fauna Helvetica 3, Centre Suisse de Cartographie de la Faune and Schweizerische Entomologische Gesellschaft, NeuchÔtel, 1999, 214 pp.
Review of the genus Paronychiurus (Collembola: Onychiuridae) and description of two new species
Romuald J. POMORSKI
Eur. J. Entomol. 100 (1): 187-193, 2003 | 10.14411/eje.2003.030
A new diagnosis of Paronychiurus Bagnall, 1948 is given. P. ramosus (Folsom, 1917) and P. eous (Christiansen & Bellinger, 1980) comb. nov. are redescribed on the basis of the types and new specimens. Two new species are described: P. probus sp. n., P. hubbardi sp. n. A key to the species in this genus is presented.
Molecular characterization of the gene pool of Exorista sorbillans (Diptera: Tachinidae) a parasitoid of silkworm, Bombyx mori, in India
Shankar N. CHATTERJEE, Thampiyath P. MOHANDAS, Tanushree TARAPHDAR
Eur. J. Entomol. 100 (1): 195-200, 2003 | 10.14411/eje.2003.031
Exorista sorbillans, the uzi fly, is a serious tachinid pest of silkworm and is present in all silk producing areas of Asia. Assuming that E.sorbillans was accidentally transported from West Bengal to southern states of India, its population genetic structure was studied using 13 ISSR, 3 RAPD, two sets of universal primers and two sets of primers designed from a lepidopteran repeat sequence. Statistical analyses of DNA markers revealed significant genetic variability between the E. sorbillans populations from 4 different geographic locations (within 400 km of one another) in the southern states and the one from West...
Copula duration and sperm economy in the large thistle aphid, Uroleucon cirsii (Hemiptera: Aphididae)
Joachim L. DAGG
Eur. J. Entomol. 100 (1): 201-203, 2003 | 10.14411/eje.2003.032
Experiments on copula duration indicate that the nature of mate competition and sperm storage in the large thistle aphid, Uroleucon cirsii (L.), differs from that in the well-studied yellow dung fly, Scatophaga stercoraria (L.). Unlike the situation in the dung fly, second copulas are shorter on average than first copulas for both individual males and females. This suggests that male aphids have a limited amount of sperm at their disposal and that the females capacity to store sperm is limited as could be expected when males were not able to displace sperm from former copulas.
Facultative hyperparasitism by the potential biological control agent Aptesis nigrocincta (Hymenoptera: Ichneumonidae)
Dirk BABENDREIER, Thomas S. HOFFMEISTER
Eur. J. Entomol. 100 (1): 205-207, 2003 | 10.14411/eje.2003.033
This study investigated whether Lathrolestes ensator, a parasitoid released as a biological control agent against the European apple sawfly in Canada, is successfully attacked by the cocoon parasitoid A.nigrocincta. In a no-choice situation in the laboratory, there was no significant difference between the acceptance of unparasitized hosts and hosts containing an egg of L. ensator by females of A.nigrocincta. In addition, A.nigrocincta attacked mature larvae of the larval parasitoid to the same degree as they attacked unparasitized hosts. Survival of A.nigrocincta offspring was close to 100% regardless of whether...
BOOK REVIEW: Boer de A. : The Types of Carabidae (Coleoptera) in the Zo÷logisch Museum Amsterdam, Predominantly the Collection "Oskar Vogt".
Eur. J. Entomol. 100 (1): 208, 2003 | 10.14411/eje.2003.034
Backhuys Publishers, Leiden, 2002, vii + 147 pp.