EJE, vol. 99 (2002), issue 1

Ultraviolet vision in European owlflies (Neuroptera: Ascalaphidae): a critical review

Karl KRAL

Eur. J. Entomol. 99 (1): 1-4, 2002 | 10.14411/eje.2002.001

This review critically examines the ecological costs and benefits of ultraviolet vision in European owlflies. On the one hand it permits the accurate pursuit of flying prey, but on the other, it limits hunting to sunny periods. First the physics of detecting short wave radiation are presented. Then the advantages and disadvantages of the optical specializations necessary for UV vision are discussed. Finally the question of why several visual pigments are involved in UV vision is addressed.

Cold tolerance and myo-inositol accumulation in overwintering adults of a lady beetle, Harmonia axyridis (Coleoptera: Coccinellidae)

Masahiko WATANABE

Eur. J. Entomol. 99 (1): 5-9, 2002 | 10.14411/eje.2002.002

I investigated the seasonal changes of cold tolerance and polyol content in adults of Harmonia axyridis to elucidate their overwintering strategy. Adults decreased their supercooling point and lower lethal temperature only during the winter. Although the seasonal trends for both values were almost consistent, there seemed to be considerable mortality, without being frozen, at -20°C in mid-winter. The pattern for seasonal change in tolerance at moderately low temperatures differed among the temperatures exposed: the survival time at -5°C peaked in winter, but the time at 5 or 0°C peaked in autumn. Because both autumn and winter adults were completely...

BOOK REVIEW: Martín-Piera F. & López-Colón J.I.: Coleoptera, Scarabaeoidea I.

A. BEZDÌK, D. KRÁL

Eur. J. Entomol. 99 (1): 10, 2002 | 10.14411/eje.2002.003

In: Ramos M.A. et al. (eds): Fauna Ibérica, vol. 14. Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, Madrid, 2000, 526 pp.

Voltinism and larval growth pattern in Coenagrion mercuriale (Odonata: Coenagrionidae) at its northern range margin

Bethan V. PURSE, David J. THOMPSON

Eur. J. Entomol. 99 (1): 11-18, 2002 | 10.14411/eje.2002.004

Voltinism and larval growth pattern were investigated in an edge-of-range population of Coenagrion mercuriale. Coenagrion mercuriale is semi-voltine in Britain and growth is inhibited in winter. The 2nd year group overwinters in a range of instars between the antepenultimate and final instar consistent with the early, asynchronous emergence pattern of this species. A facultative autumnal diapause in the penultimate instar is the most likely mode of seasonal regulation. The broad size distribution of larvae produced by this growth pattern was wider than that found in co-occurring populations of Pyrrhosoma nymphula, a...

Does the size of larval groups influence the effect of metabolic inhibitors on the development of Phormia regina (Diptera: Calliphoridae) larvae?

Paul W.C. GREEN, Monique S.J. SIMMONDS, Wally M. BLANEY

Eur. J. Entomol. 99 (1): 19-22, 2002 | 10.14411/eje.2002.005

A series of experiments were conducted to compare the susceptibility of P. regina larvae reared in isolation or in groups to the effects of diet-borne metabolic inhibitors: chlorogenic acid (CGA) and mimosine. Larvae were presented with diets containing 0.4 mM CGA or 0.4 mM CGA in combination with 22 mM lysine or methionine or with diets containing 1.5, 15 or 30 mM concentrations of mimosine. Methionine and CGA caused significantly reduced pupal weights when compared with larvae presented with lysine and CGA. All concentrations of mimosine resulted in 100% mortality with larvae unable to successfully complete pupation even at the lowest concentration....

Mating success and mating behaviour of the aphid, Myzus persicae (Hemiptera: Aphididae)

Helen M. DOHERTY, Dinah F. HALES

Eur. J. Entomol. 99 (1): 23-27, 2002 | 10.14411/eje.2002.006

In this study, aspects of the reproductive performance and behaviour of male Myzus persicae (Sulzer) (Hemiptera: Aphididae) were investigated. We report that males of clones possessing an autosomal 1,3 translocation conferring insecticide resistance show a weak trend for a reduction in reproductive potential. Clones with the translocation that can produce males but no mating females (androcyclic clones) did not have an additional disadvantage. The age of virgin males and females affected mating success. Young males and females, 0-5 days old, were the most successful with respect to the number of females mated and number of eggs produced. There...

BOOK REVIEW: Erzinçioðlu Z.: Maggots, Murder and Men. (Memories and Reflections of a Forensic Entomologist).

J. CHALUPSKÝ

Eur. J. Entomol. 99 (1): 28, 2002 | 10.14411/eje.2002.007

Colchester, Essex, UK, 2000, 256 pp.

Subsocial and aggregating behaviour in Southeast Asian treehoppers (Homoptera: Membracidae: Centrotinae)

Ulrich Ekkehard STEGMANN, Karl Eduard LINSENMAIR

Eur. J. Entomol. 99 (1): 29-34, 2002 | 10.14411/eje.2002.008

Maternal care within the treehopper subfamily Centrotinae has been considered a rare trait. We present observations on maternal care and nymphal behaviour made in 16 rain forest plots in Peninsular Malaysia and Sabah, Borneo, from 1996 to 1998. Females of 11 Centrotinae morphospecies from the tribes Centrocharesini (Centrochares Stål), Gargarini (Ebhul Distant), and Hypsaucheniini (Gigantorhabdus Schmidt, Hybandoides Distant, Pyrgauchenia Breddin, Pyrgonota Stål) produced egg clutches and guarded them. Maternal care was restricted to egg-guarding in all species. Pyrgonota ?bulbosa Buckton eggs...

Choice of perching sites by East Asian robber flies (Diptera: Asilidae)

Joachim HAUPT

Eur. J. Entomol. 99 (1): 35-42, 2002 | 10.14411/eje.2002.009

Field observations in different habitats on the island of Iriomote (Yaeyama, Ryukyu, Japan) were carried out concerning their importance as perching sites of robber flies (Diptera, Asilidae), including the specialization of different species to varying microhabitats. Factors of mutual exclusion for the different species include spatial (horizontal and vertical), seasonal and behavioural factors. Some geographically widespread species prefer open areas, commonly used for agriculture, but endemic species are localized in the tropical forests of the lowlands, and afford that area the need for special protection.

Fungivorous beetles in basidiocarps of Fomes fomentarius respond differently to microhabitat variables

Bjorn Arne RUKKE

Eur. J. Entomol. 99 (1): 43-52, 2002 | 10.14411/eje.2002.010

This study investigates the influence of microhabitat on the presence of several species of fungivorous beetles in basidiocarps of Fomes fomentarius (L.) Kickx. All dead basidiocarps of F. fomentarius from fragments of forest in an agricultural landscape in Norway were sampled and dissected, and their content of Cis jacquemarti Mellié, 1848/C. alter (Silvferberg, 1991) (did not distinguish between individuals of these two species), C. bidentatus (Olivier, 1790), C. lineatocribratus Mellié, 1848, Ennearthron cornutum (Gyllenhal, 1827) (Ciidae) and Dorcatoma dresdensis Herbst, 1792 (Anobiidae) were...

Description of the larva of Rhipsideigma raffrayi (Coleoptera: Archostemata), with phylogenetic and functional implications

Rolf G. BEUTEL, Thomas HÖRNSCHEMEYER

Eur. J. Entomol. 99 (1): 53-66, 2002 | 10.14411/eje.2002.011

Larvae of Rhipsideigma raffrayi are described in detail and those of Distocupes varians are re-examined. Their morphological structures are evaluated with respect to their functional and phylogenetic significance. Larvae of Rhipsideigma are wood-borers with a straight body and a wedge-shaped head capsule. Most of their apomorphic features are correlated with their xylobiontic habits. The strong mandibles, the sclerotized ligula and the wedge-shaped head enable the larvae to penetrate rotting wood. The broadened prothorax, prosternal asperities, tergal ampullae, the short legs, and eversible lobes of segment IX play an important...

The role of wing veins in colour pattern development in the butterfly Papilio xuthus (Lepidoptera: Papilionidae)

Paul Bernhardt KOCH, H. Frederik NIJHOUT

Eur. J. Entomol. 99 (1): 67-72, 2002 | 10.14411/eje.2002.012

Naturally occurring veinless specimen of the swallowtail Papilio xuthus show an extremely aberrant colour pattern. In spite of the fact that we have no breeding data, these veinless specimen are provisionally called veins-reduced mutant. In these mutants seven longitudinal veins of the fore wing and five of the hind wing are absent. The absence of wing veins is associated with a loss of the broad black venous stripes that normally are present along the proximal portion of the veins. In addition, missing veins cause a loss of the dislocation of black bands in adjacent wing cells, so that what are discrete black segments in normal wings...

Two new species of Aivalykus (Hymenoptera: Braconidae: Doryctinae) from China and Indonesia, with a key to species

Sergey A. BELOKOBYLSKIJ, Xuexin CHEN

Eur. J. Entomol. 99 (1): 73-78, 2002 | 10.14411/eje.2002.013

The species and tribal position of the genus Aivalykus Nixon are discussed. Two new species of Aivalykus from China and Indonesia are described: A. nitidus sp. n. and A. bouceki sp. n. The genus Ecphyloides Marsh, 1993 is considered a junior synonym of Aivalykus Nixon, 1938. A key to the species of Aivalykus is given.

The spatial distribution of leaf galls of Mikiola fagi (Diptera: Cecidomyiidae) and Neuroterus quercusbaccarum (Hymenoptera: Cynipidae) in the canopy of a Central European mixed forest

Christian KAMPICHLER, Markus TESCHNER

Eur. J. Entomol. 99 (1): 79-84, 2002 | 10.14411/eje.2002.014

Despite their wide distribution and frequent occurrence, the spatial distribution patterns of the well-known gall-inducing insects Mikiola fagi (Hartig) and Neuroterus quercusbaccarum (L.) in the canopies of mature trees are poorly described. We made use of the Swiss Canopy Crane (SCC) near Basel, Switzerland, to gain access to the canopy of a mixed temperate forest up to a height of 35 m. Within one and a half days we scanned 6,750 beech leaves and 6,000 oak leaves. M.fagi showed a distinct vertical zonation with highest abundance in the top-most parts of the canopy as well as a significant aggregation on particular trees....

A revision of the genus Argyra from China (Diptera: Empidoidea: Dolichopodidae)

Ding YANG, Toyohei SAIGUSA

Eur. J. Entomol. 99 (1): 85-90, 2002 | 10.14411/eje.2002.015

The species of the genus Argyra Macquart from China are revised. The following 3 species are new to science: Argyra (Argyra) serrata sp. n., A. (A.) pallipilosa sp. n., A. (A.) nigripilosa sp. n.

Comparative morphology of the spermatheca within the family Dinidoridae (Hemiptera: Heteroptera)

Anna KOCOREK, Teresa DANIELCZOK-DEMSKA

Eur. J. Entomol. 99 (1): 91-98, 2002 | 10.14411/eje.2002.016

The spermathecae of eleven genera of the family Dinidoridae (Dinidorinae and Megymeninae) were studied. Four types of spermatheca morphology were observed. Possible use of the morphology of spermathecae in the taxonomy of Dinidoridae is discussed.

Nymphal and adult cephalic chaetotaxy of the Cydnidae (Hemiptera: Heteroptera), and its adaptive, taxonomic and phylogenetic significance

Jerzy A. LIS, Dominique PLUOT-SIGWALT

Eur. J. Entomol. 99 (1): 99-109, 2002 | 10.14411/eje.2002.017

Cephalic chaetotaxy of nymphal and adult stages of species from all the subfamilies of Cydnidae s. str. (sensu Froeschner, 1960 and Lis, 1994), namely Garsauriinae, Cephalocteinae, Cydninae, Sehirinae, and Amnestinae, was studied. Two types of setae, primary and secondary, are described, and changes they undergo during ontogeny reviewed. The adaptive, taxonomic and phylogenetic significance of the cephalic setae in the Cydnidae s. str. is discussed. A ground-plan of the original cephalic chaetotaxy of the family, and its evolution within the family Cydnidae s. str. are proposed.

BOOK REVIEW: Taber S.W.: Fire Ants.

J. CHALUPSKÝ

Eur. J. Entomol. 99 (1): 110, 2002 | 10.14411/eje.2002.018

Texas A&M University Press, 2000, 308 pp.,

Raphogla rubra gen. n., sp. n., the oldest representative of the clade of modern Ensifera (Orthoptera: Tettigoniidea, Gryllidea)

Olivier BETHOUX, André NEL, Jean LAPEYRIE, Georges GAND, Jean GALTIER

Eur. J. Entomol. 99 (1): 111-116, 2002 | 10.14411/eje.2002.019

Raphogla rubra gen. n., sp. n., oldest representative of the (Tettigoniidea & Gryllidea) is described from the Upper Permian of the Lodève basin (France). Its phylogenetic relationships within the Ensifera are discussed. The new taxon occupies a very basal position, probably as sister group of the whole group (Tettigoniidea & Gryllidea).

Comparison of the fat allocation patterns in female pine sawflies (Hymenoptera: Diprionidae)

Annette HERZ, Werner HEITLAND

Eur. J. Entomol. 99 (1): 117-120, 2002 | 10.14411/eje.2002.020

The allocation of fat resources to somatic and reproductive tissues was studied in females of five species of pine sawflies (Diprion pini (L.), Diprion similis (Htg.), Gilpinia frutetorum (F.), Gilpinia pallida (Klug), Neodiprion sertifer (Geoffroy); Hymenoptera, Diprionidae). The soma and eggs of newly emerged females were separated and then put in ether to extract and determine their fat content. The fat allocation patterns differed between species. The gregarious outbreak species D. pini and N. sertifer allocated most of the fat to their eggs, whereas the gregarious non-outbreak species, G....