EJE, vol. 91 (1994), issue 3
Phylogeny and classification of extant Arthropoda: Review of hypotheses and nomenclature
STYS P., ZRZAVY J.
Eur. J. Entomol. 91 (3): 257-275, 1994
Recent contributions to extant arthropod phylogeny are reviewed with particular reference to the Hexapoda. Approaches based on morphology, embryology, and paleontology are compared with those derived from molecular data. A new formal classification of the Arthropoda and Hexapoda, based on strict morphological-molecular consensus, is suggested - Arthropoda: 1. Onychophora, 2. Euchelicerata, 3. Pycnogonida, 4. Crustacea, 5. Myriapoda, 6. Hexapoda: 6. 1. Parainsecta, 6.2. Campodeina, 6.3. Japygina, 6.4. Ectognatha. Nomenclature of higher-taxa names used as valid in the literature since 1945 is reviewed and commented upon.
Circadian clock and ecdysteroid titers in the wax moth, Galleria mellonella (Lepidoptera: Pyralidae) larvae
Eur. J. Entomol. 91 (3): 277-283, 1994
In this mini-review, data on the circadian rhythmicity in ecdysteroid synthesis by the prothoracic glands of final instar larvae of the wax moth (Galleria mellonella), as well as ecdysteroid titers in their hemolymph are summarized. It was found that at the low temperature of 18°C and in continuous darkness (DD), the last instar of the wax moth larvae did not pupate. When these larvae were transferred to 30°C and kept in DD, they immediately initiated development and pupated in a circadian manner. They exhibited the circadian rhythmicity of ecdysteroid titers in their hemolymph, with a period of approximately 24 hours.
The mechanism underlying...
Pyrethroid resistance and esterase activity in selected laboratory populations of sweetpotato whiteflies Bemisia tabaci (Homoptera: Aleyrodidae)
SHCHUKIN A., WOOL D.
Eur. J. Entomol. 91 (3): 285-295, 1994
Selection for resistance to fenpropathrin (a pyrethroid insecticide) was performed by exposing adults of two field-collected populations of the whitefly, Bemisia tabaci, to increasing doses of fenpropathrin for four generations. Concurrently, samples of adults were used for colorimetric measurements of esterase (EST) activity.
The two populations differed in their response to selection. EST activity increased as a correlated response to pyrethroid selection in one population but not in the. other. No changes in either resistance or esterase activity were detected in the unselected control lines. The data suggest that both resistance and...
Developmental changes during metamorphosis in Tenebrio molitor (Coleoptera: Tenebrionidae) studied by calorimetric thermography
KUUSIK A., TARTES U., HARAK M., HIIESAAR K., METSPALU L.
Eur. J. Entomol. 91 (3): 297-305, 1994
Basal metabolism, evaluated as heat production during the period of metamorphosis in Tenebrio molitor, was precisely measured with the use of differential calorimeters. After larval-pupal apolysis characteristic and consecutive metabolic phases were observed: declining, plateau, ascending and pre-ecdysal steep-falling phases. At the moment of breaking the old integument, a sharp peak of the cooling effect. caused by exuvial fluid, was recorded on the thermogram; thus, the exact time of ecdysis and the length of the interecdysal period were determined. By using thermography, also regular periods of muscular activity in metamorphosis stages were...
Book Review: Butterflies Through Binoculars. A Field Guide to Butterflies in the Boston-New York-Washington Region.
Eur. J. Entomol. 91 (3): 306, 1994
Glassberg J.: Butterflies Through Binoculars. A Field Guide to Butterflies in the Boston-New York-Washington Region. Oxford University Press, New York-Oxford, 1993, 160 pp., 40 colour plates.
Supercooling ability, fat and water contents in diapausing tropical beetle, Stenotarsus rotundus (Coleoptera: Endomychidae)
NEDVED O., WINDSOR D.
Eur. J. Entomol. 91 (3): 307-312, 1994
Traits of the diapause syndrome in the tropical beetle Stenotarsus rotundus were studied by measuring the supercooling point (SCP), and water and fat contents of the beetles in the period from deep diapause through to their activation. Diapausing beetles utilized. body fat and accumulated water, the utilization rate being very low in untreated beetles and high in those treated with juvenile hormone analogue. Physiological and behavioural mechanisms were found to be involved in adaptation against drought.
SCP remained almost unchanged from December through February, at a level normal in diapausing insects from the temperate regions (-13°C)....
The pathogenicity of Metarhizium anisopliae and Beauveria bassiana for adults of the Japanese beetle, Popillia japonica (Coleoptera: Scarabaeidae)
LACEY L.A., MARTINS A., RIBEIRO C.
Eur. J. Entomol. 91 (3): 313-319, 1994
Conidia of Metarhizium anisopliae and Beauveria bassiana were evaluated for activity against adults of the Japanese beetle, Popillia japonica, under laboratory conditions. The LC50 values 7 days after exposure to M. anisopliae and B. bassiana were 0.7 and 0.026 mg of conidia/100 adults, respectively at 22-24°C. A sharp increase in mortality was observed 3 and 4 days after treatment with either 10 mg of B. bassiana/100 adults or 10 mg of M. anisopliae/100 adults, respectively. The LT50 values at 10 mg/100 beetles for M. anisopliae and B. bassiana were 4.2 and 3.1 days....
Studies on Cydnidae (Heteroptera) of the Australian Region VI. Material collected by I. Lansbury in Papua New Guinea in 1990 and 1992
Eur. J. Entomol. 91 (3): 321-325, 1994
New localities for 6 species of Cydnidae collected by I. Lansbury in Papua New Guinea (Nagada harbour, Madang Province) are presented. Additionally, one new species, Macroscytus lansburyi, is described, illustrated, and compared with related species. A check-list of burrower bugs recorded hitherto from New Guinea is also provided.
Sphenoptera (Chrysoblemma) anchorifera sp. n. from Sahara (Coleoptera: Buprestidae)
Eur. J. Entomol. 91 (3): 327-329, 1994
Sphenoptera (Chrysoblemma) anchorifera sp. n. is described from Sahara (Algeria). A differential diagnosis and illustrations of the new species are given. The new species can be distinguished from all known Sphenoptera species by the peculiar shape of the aedeagus (parameres bearing long curved lateral processes). The larva develops in roots of Salsola sp. (Chenopodiaceae).
Book Review: Die Schmetterlinge Österreich (Lepidoptera).
JAROS J., SPITZER K.
Eur. J. Entomol. 91 (3): 330, 1994
Huemer P. & Tarmann G.: Die Schmetterlinge Österreich (Lepidoptera). Tiroler Landesmuseum Ferdinandeum, Innsbruck, 1993, 224 pp.
Redescription of Gelis longulus (Hymenoptera: Ichneumonidae), a parasitoid of Ocnerostoma piniariellum (Lepidoptera: Yponomeutidae)
SCHWARZ M., BORIANI M.
Eur. J. Entomol. 91 (3): 331-334, 1994
Gelis longulus (Zetterstedt), reared from pupae of Ocnerostoma piniariellum Zeller collected on Pinus cembra L. in northern Italy, is redescribed. The lectotype designation is reported. Notes on its biology, distribution and other known hosts and a short list of other natural enemies of Ocnerostoma piniariellum Zeller in Europe are given.
Eupithecia addictata, an Asian pug moth confused in Europe with E. thalictrata (Lepidoptera: Geometridae)
Eur. J. Entomol. 91 (3): 335-348, 1994
The Asian pug moth Eupithecia addictata Dietze is newly recorded from Europe (Austria, Slovakia, Greece) and distinguished from E. thalictrata (Püngeler) with which it was previously confused. Syntypes of E. addictata are examined and a lectotype (male) is designated. Variation of the species is discussed; no substantial difference was found between the European and East-Asian populations. The larva feeds on Thalictrum spp. New synonymy Eupithecia addictata Dietze, 1908 = E. danielata Schütze. 1959, syn. n. is introduced.
A new macrochelid mite (Acarina: Mesostigmata) associated with Trox sabulosus (Coleoptera: Scarabaeidae)
Eur. J. Entomol. 91 (3): 349-351, 1994
Macrocheles trogicolis sp. n., a new macrochelid mite (Acarina: Mesostigmata: Macrochelidae) has been described on the basis of collections from the scarabaeid beetle Trox sabulosus (L., 1758) in Slovakia.
Book Review: Plant-Hoppers: Their Ecology and Management.
Eur. J. Entomol. 91 (3): 352, 1994
Denno R.F. & Perfect T.J. (eds): Plant-Hoppers: Their Ecology and Management. Chapman & Hall, New York, London, 1994, 799 pp.