EJE, vol. 92 (1995), issue 4

Photoperiodic sensitivity in adults of Aelia fieberi (Heteroptera: Pentatomidae)


Eur. J. Entomol. 92 (4): 609-613, 1995

Photoperiodic sensitivity was examined in adults of a bivoltine bug, Aelia fieberi Scott, by exposing insects to long-day or short-day conditions al 25°C. The adult diapause of A. fieberi is facultative, induced by short-day photoperiod. Adults reared from eggs under long-day conditions began to lay eggs, whereas those reared under short-day conditions entered diapause. Both nondiapause and diapause adults were sensitive to photoperiod. The adults of the first and the second generation collected from the field were also sensitive to photoperiod. However, after overwintering, adults did not show photoperiodic sensitivity.

Book Review: Biological Control with Egg Parasitoids.


Eur. J. Entomol. 92 (4): 613-614, 1995

Wajnberg E. & Hassan S.A. (eds):  Biological Control with Egg Parasitoids. CAB International, Wallingford, 1994, xiv + 286 pp.

Effects of larval crowding on size and fecundity of the blow fly, Calliphora vicina (Diptera: Calliphoridae)


Eur. J. Entomol. 92 (4): 615-622, 1995

Increased crowding of larvae of the blow fly, Calliphora vicina, within a standard quantity of meat led to reduced larval and puparial weight, shortened development, reduced adult size, and lowered fecundity. Apparent ''critical weights'' for pupariation in overcrowded cultures were lower than those for larvae manually extracted from under-crowded cultures, suggesting that weight per se is not the decisive factor but - within a rather wide size range - a period of feeding after the moult to the third instar is necessary for onward development to the next instar.

Medium term effects of early season defoliation on the colonisation of bird cherry (Prunus padus) by insect herbivores


Eur. J. Entomol. 92 (4): 623-631, 1995

Severe defoliation of Prunus padus saplings in spring 1987 significantly affected growth and nutrient characteristics for the next five years. Trees that experienced 50% or greater defoliation at age 2 and 3 years were significantly smaller than the controls for up to three years after experimental defoliation had ceased. After five years, trees that had experienced the most severe defoliation were still significantly smaller than those trees that had experienced less severe defoliation regimes. Trees that had experienced high levels of defoliation had significantly higher total leaf nitrogen levels and significantly lower calcium levels two...

Book Review: Quarantine Pests for Europe.


Eur. J. Entomol. 92 (4): 632, 1995

Smith I.M., McNamara D.G., Scott P.R. & Harris K.M.:  Quarantine Pests for Europe. CAB International, Wallingford, 1992, 1032 pp.

Species richness of a spider community (Araneae): Extrapolation from simulated increasing sampling effort


Eur. J. Entomol. 92 (4): 633-638, 1995

A short and intensive pitfall trapping was performed in an apple orchard to estimate the species richness of the ground-dwelling spider assemblage present. Calculation of the total number of species was achieved by an extrapolation performed in two steps:

1. Establishing a series of species Counts corresponding to increasing sampling efforts. Simulation of increasing sampling efforts was achieved by computer sub-sampling.
2. An asymptotic function, derived from the theory of island bio-geography, was established to describe the sampling curve. The asymptotic value of this function provided the estimated total species number, corresponding...

Long-distance migration of aphids and other small insects in northeast India


Eur. J. Entomol. 92 (4): 639-653, 1995

Aerial netting at a height of 150 m over West Bengal during November produced evidence for extensive nocturnal migrations of a number of insect taxa, including aphids, leafhoppers, Nilaparvata lugens (the brown planthopper) and Cyrtorhinus lividipennis (a mirid predator of plant- and leafhoppers). Preliminary trajectory analysis was undertaken for aphids (particularly Lipaphis erysimi) overflying the experimental site, and it was estimated from the timing and altitude of flight, and from the winds prevailing at the time, that the long-flying individuals may have originated from sources between 100 and 300 km away to the northeast.

Book Review: Stored Product Protection.


Eur. J. Entomol. 92 (4): 654, 1995

Highley E., Wright E.J., Banks H.J. & Champ B.R. (eds): Stored Product Protection. Proceedings of the 6th International Working Conference on Stored-Product Protection, 17-23 April 1994, Canberra, Australia. CAB International, Wallingford, UK, 1994, 2 Vols, xx + 1-620 and x + 621-1274 pp.

Combined influence of protein hunger and egg load on the resource foraging behavior of Rhagoletis pomonella flies (Diptera: Tephritidae)


Eur. J. Entomol. 92 (4): 655-666, 1995

In patches of five pelted host trees in a large open field, an investigation was conducted of the combined influence of hunger for protein and egg load on responses of marked and released 18-day-old Rhagoletis pomonella (Diptera: Tephritidae) females to proteinaceous food (vials containing bird faeces) and fruit that in terms of the flies' known ovipositional preferences were high-ranking (hawthorn) or low-ranking (tomato). Consistent with a priori expectation, significantly more females denied access to protein up to testing (protein-deprived females with low egg load) than females given continuous access to protein (protein-fed females with...

Nesting behaviour, ontogeny and life-cycle of Onthophagus stylocerus (Coleoptera: Scarabaeidae)


Eur. J. Entomol. 92 (4): 667-679, 1995

Reproductive biology, nesting and ontogenetic development of Onthophagus stylocerus Gräells, 1851 are studied under laboratory conditions. The species is univoltine. Egg-laying begins at the end of May and lasts until July. The development from oviposition to image takes 7-10 weeks. The aestivation of the offspring is combined with hibernation of emergent adults.

As with many other Onthophagini, sexual cooperation and food relocation for larval supply plays an important role in the nesting behaviour of O. stylocerus. Nest type may follow any of four patterns, involving: one or more entrance tunnels, branching and brood mass location....

Book Review: Larvae and Evolution. Toward a New Zoology.


Eur. J. Entomol. 92 (4): 680-682, 1995

Williamson D.I: Larvae and Evolution. Toward a New Zoology. Chapman & Hall, New York and London, 1992, xvi + 223 pp. Hardbound.

Host-plant relationships and life history of some Alebra species in Italy (Auchenorrhyncha: Cicadellidae)


Eur. J. Entomol. 92 (4): 683-690, 1995

Four Alebra species, A. albostriella, A. coryli, A. viridis, A. wahlbergi and their colour morphs, have been investigated on the following host-plants: Corylus avellana, Castanea sativa, Quercus cerris, Q. robur, Q. petraea and Acer campestre.

Host-plant relationships of Alebra species showed an association between A. coryli and C. avellana, A. albostriella and Q. robur, A. wahlbergi and A. campestre. On the contrary on Q. cerris, Q. petraea and C. sativa two different species, A. albostriella...

A revision of the Anthaxia (Haplanthaxia) collaris species-group (Coleoptera: Buprestidae)


Eur. J. Entomol. 92 (4): 691-697, 1995

The Anthaxia (Haplanthaxia) collaris is species-group from the Oriental region is revised including keys and illustrations. A. lubopetra sp. n. from Vietnam is described and new synonyms are proposed: Anthaxia auricollis Kerremans = A. achardi Obenberger, syn. n., = A. serenissima Obenberger, syn. n.; A. virescens Kerremans = A. strandiella Obenberger, syn. n.

Polymorphism of Chironomus plumosus (Diptera: Chironomidae) males from a temperate fish-pond population


Eur. J. Entomol. 92 (4): 699-703, 1995

Colour-pattern variability of adult Chironomus plumosus (L.) males from a South Bohemian pond population is described and the decisive effect of temperature during metamorphosis on the colour patterns proven by laboratory experiments is presented. Lower temperatures (overwintering generation or 9.0-9.5°C in laboratory conditions) induced dark body forms while colour patterns at higher temperatures (summer generation, above 20°C in laboratory conditions) are bright and pale significant differences in thoracic chaetotaxy and in the ratio of tarsal segments between males of overwintering and summer generations were found. These are compared with...

Book Review: The Scale Insect Family Coccidae. An Identification Manual to Genera.


Eur. J. Entomol. 92 (4): 703-704, 1995

Hodgson C.J.: The Scale Insect Family Coccidae. An Identification Manual to Genera. International Institute of Entomology, CAB International, Wallingford, UK, 1994, vi + 639 pp., 168 groups of illustr.

A new genus and three new species of mites (Acari: Trombidiidae) described from larvae ectoparasitic on aphids from Iran


Eur. J. Entomol. 92 (4): 705-718, 1995

One new genus and three new species of trombidiid mites with larvae ectoparasitic on wheat aphids are described from Iran. Monotrombium simplicium Zhang gen, et sp. n. is placed in the subfamily Allothrombiinae. Larvae of two new species, Allorthrombium triticium Zhang sp. n. and Allothrombium mossi Zhang sp. n. are described. A key to genera of larval Trombidiidae and a key to larval species of Allothrombium are presented.

Confinement stimulates trivial flight in Coccinella septempunctata (Coleoptera: Coccinellidae)


Eur. J. Entomol. 92 (4): 719-722, 1995

Coccinellids (ladybird beetles) are usually kept in small containers before or during flight tests. We have recorded in mature reproductive adults of Coccinella septempunctata that confinement can increase both the tendency to fly (take-oft) and the performance (duration) of trivial flight. This possibility should be taken into consideration in the interpretation of flight tests.

The spreading of Ostearius melanopygius (Araneae: Linyphiidae) through central Europe


Eur. J. Entomol. 92 (4): 723-726, 1995

A complete list of records of Ostearius melanopygius in the Czech and Slovak Republics is given. The opportunistic life strategy of this species and its gradual progress from the coast towards the inland indicates unambiguously that the species has been imparted to Europe. Over the past decades the species has been progressing through Europe eastwards at a rate of approximately 30 km annually.