EJE, vol. 98 (2001), issue 2
Carabid beetles (Coleoptera: Carabidae) and habitat fragmentation: a review
Eur. J. Entomol. 98 (2): 127-132, 2001 | DOI: 10.14411/eje.2001.023
I review the effects of habitat fragmentation on carabid beetles (Coleoptera, Carabidae) and examine whether the taxon could be used as an indicator of fragmentation. Related to this, I study the conservation needs of carabids. The reviewed studies showed that habitat fragmentation affects carabid assemblages. Many species that require habitat types found in interiors of fragments are threatened by fragmentation. On the other hand, the species composition of small fragments of habitat (up to a few hectares) is often altered by species invading from the surroundings. Recommendations for mitigating these adverse effects include maintenance of large habitat...
The impact of W. Hennig's
Nils Moller ANDERSEN
Eur. J. Entomol. 98 (2): 133-150, 2001 | DOI: 10.14411/eje.2001.024
Phylogenetic systematics comprise the principles and methods by which we reconstruct the evolutionary history (phylogeny) of organisms and transform this reconstruction into a biological classification of these organisms. The most important progress in designing the tools for phylogenetic reconstruction was initiated by the German entomologist Willi Hennig (1913-1976), who clarified or redefined the goals of phylogenetic systematics in a book published in 1950: GrundzŘge einer Theorie der phylogenetischen Systematik. An extensively revised, English translation was published in 1966: Phylogenetic Systematics. W. Hennig's "phylogenetic...
BOOK REVIEW: Bruce F. Eldridge & John D. Edman (eds): Medical Entomology. A Textbook on Public Health and Veterinary Problems Caused by Arthropods.
Eur. J. Entomol. 98 (2): 150, 2001 | DOI: 10.14411/eje.2001.025
Kluwer Academic Publishers, Dordrecht, Boston, London, 2000, x + 659 pp.
Autosomal univalents as a common meiotic feature in Jadera haematoloma (Herrich-Schaeffer, 1847) and Jadera sanguinolenta (Fabricius, 1775) (Heteroptera: Rhopalidae: Serinethinae)
MarÝa JosÚ BRESSA, Alba G. PAPESCHI, Liliana MOLA, Marcelo L. LARRAMENDY
Eur. J. Entomol. 98 (2): 151-157, 2001 | DOI: 10.14411/eje.2001.026
So far, available cytogenetic data on 24 species of Rhopalidae reveal a male diploid chromosome number of 13, with a pair of m chromosomes and an X0/XX (male/female) sex chromosome determining system. As a rule Heteroptera have holokinetic chromosomes and a pre-reductional type of meiosis: the autosomal bivalents and the m pseudobivalent segregate reductionally at first meiotic division, while the X chromosome segregates equationally. In the present study, the meiotic chromosome behaviour was analyzed in males from different Argentinean populations of Jadera haematoloma and J. sanguinolenta. Our results corroborate the diploid chromosome...
BOOK REVIEW: Braby M. F.: Butterflies of Australia. Their Identification, Biology and Distribution.
Eur. J. Entomol. 98 (2): 158, 2001 | DOI: 10.14411/eje.2001.027
CSIRO Publishing, Collingwood, VIC., 2000, pp. (Vols 1+2).
Identification of PBAN-like immunoreactivity in the neuroendocrine system and midgut of Dysdercus cingulatus (Heteroptera: Pyrrhocoridae)
Viswanathan Sarada AJITHA, Damodaran MURALEEDHARAN
Eur. J. Entomol. 98 (2): 159-165, 2001 | DOI: 10.14411/eje.2001.028
Polyclonal antibodies against PBAN were used to map the distribution of PBAN-like antigenic sites in the brain-suboesophageal ganglion (Br-SOG) complex, associated neurohaemal structures, ventral nerve cord ganglia and in the alimentary canal. A pair of lateral neurosecretory cells immunopositive to the antiserum were found in each half of the deutocerebrum. PBAN-like immunoreactivity (PLI) was also noticed in the tritocerebral region of the brain and in the aorta. Two groups of immunopositive cells of four and two cells respectively, were found in the SOG. Small and weakly immunoreactive neurons were identified in the prothoracic ganglion, whereas...
BOOK REVIEW: Lawrance J.F., Hastings A.M., Dallwitz M.J., Paine T.A. & Zurcher E.J.: Beetles of the World: A Key and Information System for Families and Subfamilies. CD-ROM.
Eur. J. Entomol. 98 (2): 165-166, 2001 | DOI: 10.14411/eje.2001.029
Version 1.0 for MS-Windows, CSIRO Publishing, Melbourne, 1999.
Latitudinal gradient in response of wing polymorphism to photoperiod in a flightless bug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)
Eur. J. Entomol. 98 (2): 167-169, 2001 | DOI: 10.14411/eje.2001.030
The aim of this study was to determine if there is a latitudinal gradient in the photoperiodic regulation of wing dimorphism in the flightless bug, Pyrrhocoris apterus (L.). For this purpose individuals from three geographical populations (Israel, Spain and Czech Republic) were reared under different photoperiods and the wing length of the adults analyzed. The highest percentage of long-winged (macropterous) specimens was found in the population from Israel (35.3%), whereas percentages of macroptery were lower in the cultures from Spain (9.5%) and Czech Republic (8.6%). A higher proportion of macropterous specimens was recorded in the northern...
BOOK REVIEW: De Danske Groeshopper. Heuschrecken der Schweiz: BestimmungsschlŘssel. /Orthoptères de Suisse: ClÚ de Determination. /Ortotteri della Svizzera: Chiave de Determinazione.
Eur. J. Entomol. 98 (2): 170, 2001 | DOI: 10.14411/eje.2001.031
Nielsen O.F: De Danske Groeshopper (The Danish Grasshoppers; in Danish). Apollo Books, Stenstrup (Denmark), 2000. 192 pp., 137 col. photographs, 70 line drawings, maps, sonograms, CD with songs.
Coray A. & Thorens P.: Heuschrecken der Schweiz: BestimmungsschlŘssel. /Orthoptères de Suisse: ClÚ de Determination. /Ortotteri della Svizzera: Chiave de Determinazione. [Simultaneously in German, French and Italian.] (Fauna Helvetica 5. Orthoptera Identification [= title of the cover].) Centre suisse de cartographie de la faune & Schweizerische Entomologische Gesellschaft, NeuchÔtel, 2001. 235 pp., illus., tabs.
aps, sonograms, CD with songs.
Aestivation in Pieris brassicae (Lepidoptera: Pieridae): Implications for parasitism
Hubert R. SPIETH, Elke SCHWARZER
Eur. J. Entomol. 98 (2): 171-176, 2001 | DOI: 10.14411/eje.2001.032
Only in the southern part of the Iberian Peninsula the large white butterfly Pieris brassicae was recorded to pass the summer in pupal aestivation, induced by long-day photoperiods. It is not clear why this photoperiodic response is regionally restricted. We investigated whether the change of life history in P. brassicae may affect the infestation by parasites. This was done by testing the coincidence of photoperiodic responses in both the host P. brassicae and in its main parasitoid Cotesia glomerata. While the response under short-day conditions was very similar in both species, no summer dormancy of any type was found...
Effect of temperature on fecundity and development of the Giant Willow Aphid, Tuberolachnus salignus (Sternorrhyncha: Aphididae)
C. Matilda COLLINS, Simon R. LEATHER
Eur. J. Entomol. 98 (2): 177-182, 2001 | DOI: 10.14411/eje.2001.033
This study investigates the thermal requirements, nymphal development rates and the fecundity of both alate and apterous adults of the giant willow aphid, Tuberolachnus salignus (Gmelin) at several temperatures. Nymphal development rate increased linearly with temperature. It was estimated that 196 ± 4 degree-days above a threshold temperature of 5.5 ± 0.3░C were required for apterae to complete development from birth to final ecdysis. The alate morph was significantly less fecund than the apterous morph and its fecundity did not vary with temperature. The apterous morph displayed highest fecundity at 20░C. Survival to reproduction...
Oviposition responses of aphidophagous coccinellids to tracks of ladybird (Coleoptera: Coccinellidae) and lacewing (Neuroptera: Chrysopidae) larvae
Eur. J. Entomol. 98 (2): 183-188, 2001 | DOI: 10.14411/eje.2001.034
The effects of oviposition-deterring larval tracks of four aphidophagous coccinellids and two chrysopids were investigated on females of four coccinellid species in choice tests. Aphidophagous coccinellids Cycloneda limbifer Casey, Semiadalia undecimnotata (Schneider) and Coccinella septempunctata L. laid significantly fewer eggs on sites with tracks of unfed conspecific first instar larvae than on clean sites, but Leis dimidiata (F.) laid similar numbers of eggs on both sites.
In some but not all species, tracks of heterospecific predators also deterred coccinellid females. Interspecific effects were stronger between...
A gypsy moth (Lymantria dispar, Lepidoptera: Lymantriidae) multinucleocapsid nuclear polyhedrosis virus from France: comparison with a North American and a Korean strain
Neelam NARANG, Franck H╔RARD, Edward M. DOUGHERTY, Kim CHEN, Fernando E. VEGA
Eur. J. Entomol. 98 (2): 189-194, 2001 | DOI: 10.14411/eje.2001.035
As part of a search for natural enemies of the gypsy moth (Lymantria dispar), virus-infected samples were collected near Toulouse, France. Light and electron microscope studies confirmed that the French strain is a multinucleocapsid nuclear polyhedrosis virus (MNPV). In vivo bioassays using the New Jersey strain of L. dispar, and comparing L. dispar MNPV (LdMNPV) strains from France, North America and Korea, showed that the French strain was the least active, whereas the North American strain had the highest activity. The viral efficacy of all strains was enhanced 200 to 1300-fold in the presence of 1% fluorescent brightener....
Dorsal sex pheromone glands in female Geometridae (Lepidoptera: Geometroidea): a new apomorphy of the family
Eur. J. Entomol. 98 (2): 195-199, 2001 | DOI: 10.14411/eje.2001.036
The female Geometridae are characterized by the presence of saccular pheromone glands. They are paired structures, invaginated anteriorly and located dorso-laterally to the rectum. The opening of dorsal saccular glands varies from wide to narrow and opens up on the 9th abdominal segment. These saccular glands are widely distributed in the family. Morphological variability of these glands can be observed. In certain species of Geometridae, the paired glands vary from short to long. Pheromone production is an established function of these glands, in the case of Rheumaptera hastata.
BOOK REVIEW: Goff L.M.: A Fly for the Prosecution (How Insect Evidence Helps Solve Crimes).
Eur. J. Entomol. 98 (2): 200, 2001 | DOI: 10.14411/eje.2001.037
Harvard University Press, Cambridge, Massachusetts and London, England, 2000, 225 pp.
The morphology of the last instar larva of Aglaope infausta (Lepidoptera: Zygaenidae: Chalcosiinae)
Harald F─NGER, Clas M. NAUMANN
Eur. J. Entomol. 98 (2): 201-218, 2001 | DOI: 10.14411/eje.2001.038
The larval morphology of the western Palaearctic zygaenid species Aglaope infausta (Linnaeus, 1767) is described and figured in detail. Unlike other members of the zygaenid subfamily Chalcosiinae, the last instar larva of A. infausta has numerous secondary setae and a multitude of cuticular cavities that are devoid of openings. The other chalcosiine genera have primary setae and cuticular cavities with specialized openings through which a defensive secretion can be discharged. Imaginal characters, on the other hand, provide strong evidence for placing Aglaope in the Chalcosiinae.
Comparative study of head structures of larvae of Sphindidae and Protocucujidae (Coleoptera: Cucujoidea)
Rolf Georg BEUTEL, Stanislaw Adam ŽLIPIĐSKI
Eur. J. Entomol. 98 (2): 219-232, 2001 | DOI: 10.14411/eje.2001.039
Selected representatives of Cucujoidea, Cleroidea, Tenebrionoidea, Chrysomelidae, and Lymexylidae were examined. External and internal head structures of larvae of Sphindus americanus and Ericmodes spp. are described in detail. The data were analyzed cladistically. A sister group relationship between Sphindidae and Protocucujidae is suggested by the vertical position of the labrum. The monophyly of Cucujiformia is supported by the reduced dorsal and anterior tentorial arms, fusion of galea and lacinia, and the presence of tube-like salivary glands. Absence of M. tentoriopraementalis inferior and presence of a short prepharyngeal tube...
Revision of the species of Chaetocnema from Madagascar (Coleoptera: Chrysomelidae: Alticinae)
Eur. J. Entomol. 98 (2): 233-248, 2001 | DOI: 10.14411/eje.2001.040
The species of flea beetles of the genus Chaetocnema Stephens, 1831 occurring in Madagascar are revised. Four new species (C. cachani, C. hygrophila, C. malgascia and C. orophila) are described and five species (C. bamakoensis BechynÚ C. confinis Crotch, C. fuscipennis Scherer, C. ganganensis BechynÚ and C. picipes Stephens) are added to the Madagascar fauna. The following new synonymies are proposed: C. wollastoni Baly, 1877 = C. fraterna Harold, 1879 syn. nov. = C. monomorpha BechynÚ, 1964 syn. nov.; C. pulla Chapuis, 1879 = C. tantilla Weise,...
Vindobonella leopoldina gen. n., sp. n. from Austria (Protura: Acerentomidae s. l.)
Andrzej SZEPTYCKI, Erhard CHRISTIAN
Eur. J. Entomol. 98 (2): 249-255, 2001 | DOI: 10.14411/eje.2001.041
A new genus, Vindobonella gen. n. (Acerentomidae s. l.), and a new species, Vindobonella leopoldina sp. n., are described from Vienna. The new genus belongs to a group characterized by a reduced labial palp and a non-modified striate band on abdominal segment VIII.