EJE, vol. 95 (1998), issue 2

Immunohistochemical demonstration of mammalian- and FMRFamide-like peptides in the gut innervation and endocrine cells of the wild silkmoth, Antheraea yamamai (Lepidoptera: Saturniidae) during diapause and post-diapause of pharate first-instar larvae

AN Y., NAKAJIMA T., SUZUKI K.

Eur. J. Entomol. 95 (2): 185-196, 1998

FMRFamide-, vasoactive intestinal polypeptide (VIP)-, somatostatin-, substance P(SP)-, cholecystokinin octapeptide (CCK-8)- and pancreatic polypeptide (PP)-like materials were immunohistochemically detected in the endocrine cells and the gut innervation of diapausing pharate and newly-hatched first-instar larvae of Antheraea yamamai. SP- CCK-8-, PP- and FMRFamide-like immunoreactive cells were distributed unequally in different midgut regions; no cells reacting with antisera against VIP and somatostatin were found. Innervation of the anterior region of midgut, close to the foregut-midgut boundary, included 90-100 FMRFamide-like bipolar neurons...

Absence of sex chromatin corresponds with a sex-chromosome univalent in females of Trichoptera

MAREC F., NOVAK K.

Eur. J. Entomol. 95 (2): 197-209, 1998

Five Trichoptera species, representing four different families of three suborders, have been examined for sex chromatin status in relation to their sex chromosome system. These were Hydropsyche sp., Polycentropus flavomaculatus (Pictet), Rhyacophila sp., Anabolia furcata Brauer and Limnephilus decipiens (Kolenatı). None of the species displayed sex-specific heterochromatin in highly polyploid nuclei of the Malpighian tubule cells. Such sex chromatin is a characteristic trait of the heterogametic female sex in the sister order Lepidoptera; it is derived from the heterologous sex chromosome W. Hence, the absence of...

Book Review: Medical Entomology for Students.

DUSBABEK F.

Eur. J. Entomol. 95 (2): 210, 1998

Service M.W.: Medical Entomology for Students. Chapman & Hall, London, 1996, 278 pp.

Effects of oviposition-deterring pheromone and allomones on Aphidoletes aphidimyza (Diptera: Cecidomyiidae)

RUZICKA Z., HAVELKA J.

Eur. J. Entomol. 95 (2): 211-216, 1998

 Larvae of Aphidoletes aphidimyza (Rondani) (Diptera: Cecidomyiidae) secrete an oviposition-deterring pheromone (ODP). In choice tests, females of A. aphidimyza laid significantly fewer eggs on Vicia faba L. plants infested with Aphis fabae Scopoli (Homoptera: Aphidoidea) that were previously exposed to conspecific third-instar larvae or a water extract of their ODP.

A. aphidimyza females also laid fewer eggs on aphid-infested plants that were previously exposed to unfed first-instar larvae of Chrysopa oculata Say, Chrysopa perla (L.) or Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae),...

Collembola (Entognatha) from East Africa

WEINER W.M., NAJT J.

Eur. J. Entomol. 95 (2): 217-237, 1998

Materials of Hypogastruridae, Odontellidae, Neanuridae, Onychiuridae and Isotomidae from East Africa were studied. Several new species are described: Acherontiella kowalskiorum sp. n., Furculanurida grandcolasorum sp. n., Stachorutes dallaii sp, n., and Paleonura cassagnaui sp, n. Friesea vrorovi Tshelnokov, 1977 and Tullbergia kilimanjarica (Delamare Deboutteville, 1953) are redescribed. Stachorutes arlei (Thibaud & Massoud, 1980) is a new combination. Identification keys for Friesea Dalla Torre, 1895 with 2 + 2 eyes and Stachorutes Dallai, 1973 are given.

Book Review: Biotechnology and Integrated Pest Management.

KOCOUREK F.

Eur. J. Entomol. 95 (2): 238, 1998

Persley G.J. (ed.): Biotechnology and Integrated Pest Management. Biology in Agriculture Series No. 15. CAB International, Wallingford, UK, 1996, xvi + 475 pp.

Morphometric analysis of European species of the genus Aphis (Sternorrhyncha: Aphididae) inhabiting Ribes

RAKAUSKAS R.

Eur. J. Entomol. 95 (2): 239-250, 1998

A review of the literary data on the life cycles and host plant relationships of Aphis grossulariae Kaltenbach, A. schneideri (Börner) and A. triglochinis Theobald is presented. Morphometric analysis of the three species revealed insufficient discriminative value of the majority of characters commonly used in the keys. A modified key to fundatrices, apterous and alate viviparous females, gynoparous and oviparous females and males is presented.

Cephalcia masuttii sp. n. (Hymenoptera: Pamphiliidae), a new web-spinning sawfly living on spruce

BATTISTI A., BOATO A.

Eur. J. Entomol. 95 (2): 251-262, 1998

Cephalcia masuttii sp. n. is described from the SE Alps of Europe, based on morphological, biological, and genetic studies. The larvae feed gregariously on Picea abies. The species has been recorded also from Central Siberia and NE China, where the larvae feed on Picea obovata and Picea koraiensis, respectively. Indications exist that it may be more widely distributed in Europe and northern Asia. The strict gregariousness of larvae of this species is peculiar among spruce feeders of Cephalcia. Morphologically the adults are most similar to Cephalcia alashanica, with which they are compared. An allozyme analysis...

A new subgenus and two new species of Sphaericus (Coleoptera: Ptinidae) from Western Australia

BELLES X.

Eur. J. Entomol. 95 (2): 263-268, 1998

A new subgenus Leasphaericus (of Sphaericus) with two new species, S. (L.) flavipennis and S. (L.) diversevillosus, are described from North West Cape and Barrow Island, in Western Australia. With the exception of one anthropophilous and paracosmopolitan species, the genus Sphaericus had been recorded only from the southern Palaearctic area. The discovery of Australian autochthonous Sphaericus suggests that this genus may be more diversified in other areas, namely in Africa.

European and North American populations of Galerucella nymphaeae (Coleoptera: Chrysomelidae): Two separate species revealed by chorion polypeptide analysis

NOKKALA C., NOKKALA S., NORDELL-PAAVOLA A.

Eur. J. Entomol. 95 (2): 269-274, 1998

The Galerucella nymphaeae species complex is a controversial group of leaf-consuming beetles with a Holarctic distribution. It includes several closely allied species or forms living in different habitats and utilizing different food plants. In northern Europe, two species are encountered, G. nymphaeae (L.) living on Nuphar, and G. sagittariae (Gyllenhal) living on semiaquatic or terrestrial plants, while all North American forms have been so far considered conspecific with the European G. nymphaeae. In the present study we have compared chorion polypeptides of the northern European G. nymphaeae and G. sagittariae...

The genus Typhlodromus (Acari: Mesostigmata) in Norway

EDLAND T., EVANS G.O.

Eur. J. Entomol. 95 (2): 275-295, 1998

Eight species of Typhlodromus Scheuten were collected during an extensive survey of phytoseiid mites in Norway. One of the species, Typhlodromus norvegicus, is described as a new taxon and Typhlodromus ulex Evans is considered to be a junior synonym of Typhlodromus phialatus Athias-Henriot. Keys are given for the identification of the genera of the Typhlodrominae and species of the genus Typhlodromus represented in the fauna of Norway. Distribution maps are provided for seven species and the frequency of Typhlodromus species on a range of host plants is given in tabular form. Picea abies showed the highest...

Book Review: Medical and Veterinary Entomology.

DUSBABEK F.

Eur. J. Entomol. 95 (2): 295-296, 1998

Kettle D.S.: Medical and Veterinary Entomology. CAB International, Oxon, 1995 (2nd ed.), 725 pp.

Effect of photoperiod on flight activity in Graphosoma lineatum (Heteroptera: Pentatomidae)

NAKAMURA K., HODKOVA M., HODEK I.

Eur. J. Entomol. 95 (2): 297-300, 1998

Flight activity in a pentatomid bug, Graphosoma lineatum, was measured under different photoperiodic conditions. Insects started flying 3 days after adult ecdysis and the percentage of flying adults became highest about 1 week after the ecdysis, regardless of the photoperiod. Under long day (18L : 6D), high flight activity was continued, whereas under short day (12L : 12D), most adults stopped flying when diapause was induced. In both photoperiods, a small number of adults showed flight of a long duration, longer than 30 minutes. Thus, no evidence was found relating the long flight to diapause. It is suggested that diapause adults of G. lineatum...

Effect of temperature on development of the Western Flower Thrips, Frankliniella occidentalis (Thysanoptera: Thripidae)

MCDONALD J.R., BALE J.S., WALTERS K.F.A.

Eur. J. Entomol. 95 (2): 301-306, 1998

The development of the Western Flower Thrips (Frankliniella occidentalis Pergande; Thysanoptera: Thripidae) was studied at six temperatures between 10 and 35°C. Developmental rate increased linearly as rearing temperature increased. It was estimated that 268 degree-days, above a threshold temperature of 7.9°C, were required to complete development from egg to adult. These data were related to records of field temperatures in the West Midlands region of the UK, to estimate the potential number of generations per year that could complete development in outdoor conditions. Using this data, a maximum of between three and five generations could have...

Evolutionary origin of squamiform microsculpture on the forewing-holding devices (frenae) in Heteroptera

STYS P.

Eur. J. Entomol. 95 (2): 307-310, 1998

Frenae are forewing-holding ridges situated in the Heteroptera parallel to the lateral sides of mesoscutellum, and covered by a squamiform, overlapping, glabrous microsculpture. The situation found in Rectilamina sp. (Dipsocoromorpha: Schizopteridae: Hypselosomatinae) suggests that each single squamiform element is homologous to a strongly modified microtrichium, and that, at least in this case, there is no basic difference between microtrichium and acanthus.

Book Review: Termites, Biology and Pest Management.

HRDY I.

Eur. J. Entomol. 95 (2): 310, 1998

Pearce M.J.: Termites, Biology and Pest Management. CAB International, Wallingford, 1997, xii + 172 pp., 32 plates.

Maternal care in Pygoplatys bugs (Heteroptera: Tessaratomidae)

GOGALA M., YONG H.-S., BRUEHL C.

Eur. J. Entomol. 95 (2): 311-315, 1998

Cases of maternal care and egg guarding were observed and photographed in bugs of the family Tessaratomidae. Females of one still undescribed species of Pygoplatys from Doi Inthanon, Thailand, and of Pygoplatys acutus from Borneo are carrying their young larvae on the venter. The egg guarding was also observed in Pygoplatys acutus from Kepong, Peninsular Malaysia. It seems, that maternal care is a characteristic behavior in bugs of the genus Pygoplatys.

Book Review: Methods in Ecological and Agricultural Entomology.

HONEK A.

Eur. J. Entomol. 95 (2): 316, 1998

Dent D.R. & Walton M.P. (eds):  Methods in Ecological and Agricultural Entomology. CAB International, Wallingford, 1997, xiv + 387 pp.

Book Review: Molecular Model Systems in the Lepidoptera.

SEHNAL F.

Eur. J. Entomol. 95 (2): 317-318, 1998

Goldsmith M.R. & Wilkins A.S.: Molecular Model Systems in the Lepidoptera. Cambridge University Press, New York, 1995, 542 pp.

Book Review: The Bionomics of Grasshoppers, Katydids and Their Kin.

STYS P.

Eur. J. Entomol. 95 (2): 319-320, 1998

Gangwere S.K., Muralirangan M.C. &  Muralirangan M. (eds): The Bionomics of Grasshoppers, Katydids and Their Kin. CAB International, Wallingford (UK) and New York, 1997, xiii + 529 pp.