Entomol. exp. appl. 59: 300-302, 1991. Index to volume 59 T. E. Mittler and T. Meikle, Effects of dietary sucrose concentration on aphid honeydew carbohydrate levels and rates of excretion J. Dendy and P. F. Credland, Development, fecundity and egg dispersion of Zabrotes subfasciatus G. S. Miranpuri and G. G. Khachatourians, Infection sites of the entomopathogenic fungus Beauveria bassiana in the larvae of the mosquito Aedes aegypti M. Barrett and J.M. Schmidt, A comparison between the amino acid composition of an egg parasitoid wasp and some of its hosts S. Capua, E. Cohen and U. Gerson, Induction of aldrin epoxidation and glutathione S-transferase in the mite Rhizoglyphus robini J. I. Izquierdo, How does Drosophila melanogaster overwinter? P. A. Quedraogo, J. P. Monge and J. Huignard, Importance of temperature and seed water content on the induction of imaginal polymorphism in Callosobruchus maculatus A. R. Panizzi and C. E. Rossi, The role of Acanthospermum hispidum in the phenology of Euschistus heros and of Nezara viridula T. Jermy and B. A. Butt, Method for screening female sex pheromone extracts of the Colorado potato beetle A. Givovich and H. M. Niemeyer, Hydroxamic acids affecting barley yellow dwarf virus transmission by the aphid Rhopalosiphum padi N. C. Mishra and B. C. Misra, Preference of white-backed planthopper, Sogatella furcifera to different rice varieties J. Ortel, Effects of lead and cadmium on chemical composition and total water content of the pupal parasitoid, Pimpla turionellae Book reviews M. Tomalak & J. J. Lipa, Factors affecting entomophilic activity of Neoaplectana feltiae in mushroom compost R. E. Kooi, T. P. M. Van de Water & W. M. Herrebout, Food acceptance by a monophagous and an oligophagous insect in relation to seasonal changes in host plant suitability P. W. Miles & P. Harrewijn, Discharge by aphids of soluble secretions into dietary sources K. Satyanarayana, J. H. Yu, G. Bhaskaran, K. H. Dahm & R. Meola / Hormonal control of egg maturation in the Corn earworm, Heliothis zea H. McBrien & M. Mackauer, Decision to superparasitize based on larval survival: competition between aphid parasitoids Aphidius ervi and Aphidius smithi A. B. Mohammad & M. T. AliNiazee, Influence of protein hydrolysate baits on oviposition in the apple maggot, Rhagoletis pomonella Y. E. Seifelnasr, Influence of olfactory stimulants on resistance, susceptibility of pearl millet, Pennisetum americanum to the rice weevil, Sitophilus oryzae S. Finch, Influence of trap surface on the numbers of insects caught in water traps in brassica crops Ph. Soetens, M. Rowell-Rahier & J. M. Pasteels, Influence of phenolglucosides and trichome density on the distribution of insects herbivores on willows V. Ko&tal, The effect of colour of the substrate on the landing and oviposition behaviour of the cabbage root fly Short communication M. Y. Hussein & K. S. Hagen, Rearing of Hippodamia convergens on artificial diet of chicken liver, yeast and sucrose J. R. Hagler & A. C Cohen, Prey selection by in vitro- and field-reared Geocoris punctipes B. F. Binder & W. S. Bowers, Behavioral changes and growth inhibition in last instar larvae of Heliothis zea induced by oral and topical application of precocene II J. Avilla, J. Anadon, M. J. Sarasia & R. Albajes, Egg allocation of the autoparasitoid Encarsia tricolor at Entomol. exp. appl. 59: 300-302, 1991. Index to volume 59 T. E. Mittler and T. Meikle, Effects of dietary sucrose concentration on aphid honeydew carbohydrate levels and rates of excretion J. Dendy and P. F. Credland, Development, fecundity and egg dispersion of Zabrotes subfasciatus G. S. Miranpuri and G. G. Khachatourians, Infection sites of the entomopathogenic fungus Beauveria bassiana in the larvae of the mosquito Aedes aegypti M. Barrett and J.M. Schmidt, A comparison between the amino acid composition of an egg parasitoid wasp and some of its hosts S. Capua, E. Cohen and U. Gerson, Induction of aldrin epoxidation and glutathione S-transferase in the mite Rhizoglyphus robini J. I. Izquierdo, How does Drosophila melanogaster overwinter? P. A. Quedraogo, J. P. Monge and J. Huignard, Importance of temperature and seed water content on the induction of imaginal polymorphism in Callosobruchus maculatus A. R. Panizzi and C. E. Rossi, The role of Acanthospermum hispidum in the phenology of Euschistus heros and of Nezara viridula T. Jermy and B. A. Butt, Method for screening female sex pheromone extracts of the Colorado potato beetle A. Givovich and H. M. Niemeyer, Hydroxamic acids affecting barley yellow dwarf virus transmission by the aphid Rhopalosiphum padi N. C. Mishra and B. C. Misra, Preference of white-backed planthopper, Sogatella furcifera to different rice varieties J. Ortel, Effects of lead and cadmium on chemical composition and total water content of the pupal parasitoid, Pimpla turionellae Book reviews M. Tomalak & J. J. Lipa, Factors affecting entomophilic activity of Neoaplectana feltiae in mushroom compost R. E. Kooi, T. P. M. Van de Water & W. M. Herrebout, Food acceptance by a monophagous and an oligophagous insect in relation to seasonal changes in host plant suitability P. W. Miles & P. Harrewijn, Discharge by aphids of soluble secretions into dietary sources K. Satyanarayana, J. H. Yu, G. Bhaskaran, K. H. Dahm & R. Meola / Hormonal control of egg maturation in the Corn earworm, Heliothis zea H. McBrien & M. Mackauer, Decision to superparasitize based on larval survival: competition between aphid parasitoids Aphidius ervi and Aphidius smithi A. B. Mohammad & M. T. AliNiazee, Influence of protein hydrolysate baits on oviposition in the apple maggot, Rhagoletis pomonella Y. E. Seifelnasr, Influence of olfactory stimulants on resistance, susceptibility of pearl millet, Pennisetum americanum to the rice weevil, Sitophilus oryzae S. Finch, Influence of trap surface on the numbers of insects caught in water traps in brassica crops Ph. Soetens, M. Rowell-Rahier & J. M. Pasteels, Influence of phenolglucosides and trichome density on the distribution of insects herbivores on willows V. Ko&tal, The effect of colour of the substrate on the landing and oviposition behaviour of the cabbage root fly Short communication M. Y. Hussein & K. S. Hagen, Rearing of Hippodamia convergens on artificial diet of chicken liver, yeast and sucrose J. R. Hagler & A. C Cohen, Prey selection by in vitro- and field-reared Geocoris punctipes B. F. Binder & W. S. Bowers, Behavioral changes and growth inhibition in last instar larvae of Heliothis zea induced by oral and topical application of precocene II J. Avilla, J. Anadon, M. J. Sarasia & R. Albajes, Egg allocation of the autoparasitoid Encarsia tricolor at different relative densities of the primary host (Trialeurodes vaporariorum) and two secondary hosts (Encarsia formosa and E. tricolor) G. Nordlander, Host finding in the pine weevil Hylobius abietis: effects of conifer volatiles and added limonene A. C. Grosscurt & R. A. J. Wixley, Effects of temperature on acaricidal and insecticidal activities of the benzoylureas flucycloxuron and diflubenzuron J. L. Feder & G. L. Bush, Genetic variation among apple and hawthorn host races of Rhagoletis pomonella across an ecological transition zone in the Mid-Western United States J. C. Simon, C. A. Dedryver & J. S. Pierre, Identifying bird cherry-oat aphid Rhopalosiphum padi emigrants, alate exules and gynoparae: application of multivariate methods to morphometric and anatomical features R. N. Tripathi & R. Singh, Aspects of life-table studies and functional response of Lysiphlebia mirzai P. A. Horne & J. A. Horne, The effects of temperature and host density on the development and survival of Copidosoma koehleri Book reviews List of referees 1990 Index to volume 59 302 Author index Albajes, R., 219 Hagler, J. R., 201 Monge, J. P., 59 AliNiazee, M. T., 151 Harrewijn, P., 123 Niemeyer, H. M., 79 Anadon, J., 219 Herrebout, W. M., 111 Nordlander, G., 229 Avilla, J., 219 Horne, J. A., 289 Ortel, J., 93 Barrett, M., 29 Horne, P. A., 289 Panizzi, A. R., 67 Bhaskaran, G., 135 Huignard, J., 59 Pasteels, J. M., 175 Binder, B. F., 207 Hussein, M. Y., 197 Pierre, J. S., 267 Bowers, W. S., 207 Izquierdo, J. 1., 51 Quedraogo, P. A., 59 Bush, G. L., 249 Jermy, T., 75 Rossi, C. E., 67 Butt, B. A., 75 Khachatourians, G. G., 19 Rowell-Rahier, M., 175 Capua, S., 43 Kooi, R. E., 111 Sarastia, M. J., 219 Cohen, A. C., 201 Koitél, V., 189 Satyanarayana, K., 135 Cohen, E., 43 Lipa, J. J., 105 Schmidt, J. M., 29 Credland, P. F., 9 Mackauer, M., 145 Seifelnasr, Y. E., 163 Dahm, K. H., 135 McBrien, H., 145 Simon, J. C., 267 Dedryver, C. A., 267 Meikle, T., 1 Singh, R., 279 Dendy, J., 9 Meola, R., 135 Soetens, Ph., 175 Feder, J. L., 249 Miles, P. W., 123 Tomalak, M., 105 Finch, S., 169 Miranpuri, G. S., 19 Tripathi, R. N., 279 Gerson, U., 43 Mishra , N. C., 87 Van de Water, T. P. M., 111 Givovich, A., 79 Misra, B. C., 87 Wixley, R. A., 239 Grosscurt, A. C., 239 Mittler, T. E., 1 Yu, J.H.,- 135 Hagen, K. S., 197 Mohammad, A. B., 151