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Nabhan, G. P. & S. E. Buchmann, 1996. Pesticide disruption of interactions between rare plants and their pollinators: chemically-induced habitat fragmentation in the U.S.-Mexico borderlands, In: Soto, Sonnerschein, Colburn, T. (eds.), Comments in Toxicology.

Nabhan, G. P. & S. E. Buchmann, 1997. Services Provided by Pollinators. Pp. 133 – 150. In: G.C. Daily (ed.), Nature's Services: Societal Dependence On Natural Ecosystems. Island Press, Washington, D.C.

Nachtigall, W. 2000. Insect wing bending and folding during flight without and with an additional prey load. Entomologia Generalis 25(1): 1-16.

Nachtigall, W. 2005. Flight speed and wingbeat - frequency in starting honey bees (Hymenoptera: Apidae). [Geschwindigkeit und Flugelschlagfrequenz abfliegender Honigbienen (Hymenoptera: Apidae). Entomologia generalis 28(1): 69-75.

Nachtigall, W. & P. Feller, 1989. Flight of the honey bee: II. Inner thorax and surface thorax temperatures and energetic criteria, correlated to flight parameters. Journal of Comparative Physiology B Biochemical Systemic and Environmental Physiology 158: 719-728.

Nachtigall, W., A. Wisser & D. Eisinger, 1998. Flight of the honey bee. VIII. Functional elements and mechanics of the "flight motor" and the wing joint - one of the most complicated gear-mechanisms in the animal kingdom. Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology 168(5): 323-344.

Nadig, A. & N. Nadig, 1933. Beitrag zur Kenntnis der Hymenopterenfauna von Marokko und Westalgerien. Erster Teil: Apidae, Sphegidae, Vespidae. Jhb. naturf. Ges. Graubünden 71: 38-107.

Nadig, N. 1918. Alcune note sulla fauna dell'alta Valsesia. Atti Soc. Ital. Sci. Nat. 56: 331-341.

Naegele, J. A. & R. N. Jefferson, 1964. Floriculture Entomology. Annual Review of Entomology 9: 319-340.

Nagaraja, N. 2002. Observations on foraging index of European honeybee, Apis mellifera L. (Hymenoptera: Apidae). Journal of Entomological Research 26(3): 185-192.

Nagamitsu, T. & T. Inoue, 1997. Aggressive foraging of social bees as a mechanism of floral partitioning in an Asian tropical rainforest. Oecologia 110: 432–439.

Nagamitsu, T. & T. Inoue, 1998. Interspecific morphological variation in stingless bees (Hymenoptera, Meliponinae) associated with floral shape and location in an Asian tropical rainforest. Entomol. Sci. 1: 189-194.

Nagamitsu, T. & T. Inoue, 2002. Foraging activity and pollen diets of subterranean stingless bee colonies in response to general flowering in Sarawak, Malaysia. Apidologie 33(3): 303-315.

Nagamitsu, T., K. Momose, T. Inoue & D. W. Roubik, 1999. Preference in flower visits and partitioning in pollen diets of stingless bees in an Asian tropical rain forest. Researches in Population Ecology 41: 195-202.

Nagaraja, N. 2000. Impact of ectoparasitic brood mites, Tropilaelaps clareae and Varroa jacobsoni on Apis mellifera beekeeping in Karnataka. Journal of Ecotoxicology & Environmental Monitoring 10(3/4): 205-210.

Nagaraja, N. & D. Rajagopal, 2000. Foraging and brood rearing activity of rock bee, Apis dorsata F. (Hymenoptera: Apidae). Journal of Entomological Research 24(3): 243-248.

Nagase, H. 2006. Synopsis of the bee genus Coelioxys Latreille (Hymenoptera: Megachilidae) of Japan, with description of a new species. Entomological science [Melbourne, Australia : Blackwell Publishing Asia] 9(2): 223-238. [Electronic Resource: http://dx.doi.org/10.1111/j.1479-8298.2006.00168.x].

Nagy, M. V. Suchy, D. Uhrin, K. Ubik, M. Budesinsky & D. Grancai, 1988. Constituents of propolis of Czechoslovak origin. Chem. Pap. 42(5): 691-696.

Nagylaki, I. 1981. The inbreeding effective population number and the expected heterozygosity for an X-linked locus. Genetics 47:731-737.

Naiem, E. S., N. Hrassnigg & K. Crailsheim, 1999. Nurse bees support the physiological development of young bees (Apis mellifera L.). Journal of Comparative Physiology. B,Biochemical, Systemic, and Environmental Physiology 169(4/5): 271-279.

Naik, D. G. & Padmini, 2002. 2-Heptanone as a repellent for Apis florea. Journal of Apicultural Research 41(1/2): 59-61.

Naim, M. 1972. Flight range of Apis cerana indica when enticed to a feeding dish. Journal of Apicultural Research 11(3): 167-169.

Naim, M. 1973. Bee is farmer's honey. Indian Farming 22(10): 43, 45-46.

Naim, M. 1982. Integration of bee pollination with pest management. Indian Bee Journal 44(1): 10-11.

Naim, M. 1983. The queenbee of Indian Apis cerana and its effect on colony performance. Indian Bee Journal 45(2/3): 69-70.

Naim, M. 1984. Field behaviour of honeybee foragers. Indian Journal of Entomology 46(3): 335-339.

Naim, M. & D. S. Bisht, 1972. A simple method of disinfection of honeybee combs against wax moth. Indian Bee Journal 34(3/4): 70-71.

Naim, M. & D. S. Bisht, 1979. Pollen gathering capacity of the Indian Honeybee, Apis cerana indica Fabr. Indian Journal of Entomology 41(3): 295-296.

Naim, M. & D. S. Bisht, 1984. The life span and the egg-laying potential of a queenbee Apis cerana indica. Indian Journal of Entomology 46(3): 380-382.

Naim, M., D. S. Bisht & R. B. P. Sinha, 1976. Percentage of honeybee visitation to mustard fields. Entomological Newsletters 6(2): 5-6.

Naim, M., D. S. Bisht & P. J. Rao, 1988. Hemolymph protein pattern of drones and queens of the Indian honey bee, Apis cerana F. Journal of Entomological Research (New Delhi) 12(2): 98-99.

Naim, M. & K. G. Phadke, 1972. Observations on the frequency of extraction and the honey yield. Indian Bee Journal 34(1/2): 24-26.

Naim, M., K. G. Phadke & P. J. Rao, 1985. Morphometrics and some behavioural aspects of Apis cerana indica workers, under queenless colony condition. Indian Journal of Entomology 47(2): 179-182.

Naim, M., S. K. Prasad & P. B. Singh, 1994. Role of Indian honeybees Apis cerana F. in pollination of Brassica napus L. (Gobi sarson). Shashpa 1(1): 89-90.

Naim, M., P. J. Rao & K. G. Phadke, 1985. Effect of queenless colony condition on some of the haemolymph constituents of workers and drones of Apis cerana indica. Indian Journal of Entomology 47(1): 27-31.

Nakajima, C., A. Okayama, T. Sakogawa, A. Nakamura & T. Hayama, 1997. Disposition of ampicillin in honeybees and hives. J. Vet. Med. Sci. 59(9): 765-767. [Abstract].

Nakamura, H. & Y. Toquenaga, 2002. Estimating colony locations of bumble bees with moving average model. Ecological Research 17(1): 39-48.

Nakamura, K. & T. Matsumura, 1985. Biofaunistic survey of wild bees at highlands of Nikko, Kanto District, Japan. Bull. Fat. Gener. Educ., Utsunomiya Univ. (Sect. 2) 18: 19-39. [In Japanese].

Nakamura, K. & J. Nakamura, 2001. Beekeeping extension in the rural development. Honeybee Science 22(2): 87-92.

Nakkeeran, S., A. S. Krishnamoorthy, V. Ramamoorthy & P. Renukadevi, 2002. Microbial inoculants in plant disease control. Journal of Ecobiology 14(2): 83-94.

Nalepa, C. A., S. B. Bambara & A. M. Burroughs, 1992. Pollen and nectar feeding by Chilocorus kuwanae (Silvestri) (Coleoptera: Coccinellidae). Proc. Entomol. Soc. Wash. 94(4): 596-597.

Nanork, P., J. Paar, N. C. Chapman, S. Wongsiri & B. P. Oldroyd, 2005. Asian honeybees parasitize the future dead. Nature 437(7060): 829.

Nansen, C. & S. Korie, 2000. Determining the time delay of honey bee (Apis mellifera) foraging response to hourly pollen release in a typical pollen flower (Cistus salvifolius). Journal of Apicultural Research 39(3/4): 93-101.

Naokazu, K. 2000. Properties and utilization of beeswax. Honeybee Science 21(4): 145-153.

Naora, N. 1933. Notes on some fossil insects from East-Asiatic continent, with descriptions of three new species. Entomol. World 1: 208-219.

Nargis, S., P. Srimathi & V. Krishnasamy, 2000. Influence of supplementary hand pollination on seed yield in hybrid sunflower - KBSH 1. Madras Agricultural Journal 87(7/9): 488-489.

Narwania, S. K., S. K.Gahlawat, Ombir & R. C.Sihag, 2003. Diversity, Abundance, foraging rates and pollinating efficiency of insects visiting wanga (Cucumis melo s.sp.melo) blossoms at Hisar (India). Korean J. Apic. 18(1): 29-36.

Nasr, M. E. 1994. Augmentation of tracheal mite resistant stocks in honey producers' operations and selection of good breeder queens. The Sting 12: 15-17.

Nasr, M. E. 1996. Tech-Transfer of breeding bees resistant to tracheal mites. 1995 Annual report. Ontario Beekeepers' Association.

Nasr, M. E. 1997a. Tech-Transfer of breeding bees resistant to tracheal mites. 1996 Annual report. Ontario Beekeepers' Association.

Nasr, M. E. 1997b. Mite resistant bees in Ontario. Canadian Beekeeping Journal.

Nasr, M. E. 1998a. Mite resistant honey bee stock in Ontario. The Hive Lights.

Nasr, M. E. 1998b. Tech-Transfer of breeding bees resistant to tracheal mites. 1997 Annual report. Ontario Beekeepers' Association.

Nasr, M. E. & G. Grant, 1994. Integrated pest management for mite infestations in honey bee colonies. Ontario Apicultural News-Letter. P. 1-2.

Nasr, M. E. & D. McRory, 1995. Honey bee characteristics of economic importance to Ontario beekeepers in Canada. American Bee Journal 135: 423-425.

Nasr, M. E., D. McRory, G. W. Otis & T. P. Liu, 1991. Evaluation of using formic acid, tobacco smoke, and fluvalinate strips in detecting Varroa mites. Entomological Society of America, Reno, NV.

Nasr, M. E., D. McRory & A. Skinner, 1995. Evaluation of honey bee resistant to mites to tolerance to tracheal mites under field conditions. Entomological Society of America, Las Vegas, NV.

Nasr, M. E., D. McRory & A. Skinner, 1996. Single treatment for controlling honey bee parasitic mites with formic acid. Entomological Society of America, Louisville, KY.

Nasr, M. E., G. W. Otis & C. Scott-Dupree, 1990. Breeding honey bees resistant to tracheal mites. Bee Science 2: 122-123.

Nasr, M. E., G. W. Otis & C. Scott-Dupree, 1992a. Potential uses of Canadian honey bees in breeding for resistance to tracheal mites. American Bee Journal 132: 812.

Nasr, M. E., G. W. Otis & C. Scott-Dupree, 1992b. Screening Ontario honey bee stocks for tracheal mite resistance. Hivelights 7: 10-11.

Nasr, M. E., G. W. Otis & C. Scott-Dupree, 1994. Breeding for tracheal mite (Acarapis woodi) resistance in honey bees. Proceeding of Apimondia, XXVI International Beekeeping Congress, Beijing, China.

Nasr, M. E., G. W. Otis & C. Scott-Dupree, 1995. Honey bee drones' susceptibility to tracheal mite infestation and their role in breeding tracheal mite-resistant bees. Entomological Society of America, Baltimore, MD.

Nasr, M. E., G. W. Otis & C. D. Scott-Dupree, 1997. Divergent selection for tracheal mite resistance in honey bees (Hymenoptera, Apidae). J. Econ. Entomol.

Nasr, M. E. , G. W. Otis & C. D. Scott-Dupree, 2001. Resistance to Acarapis woodi by honey bees (Hymenoptera: Apidae): divergent selection and evaluation of selection progress. Journal of Economic Entomology 94(2): 332-338.

Nasr, M. E., Y. S. Peng & J. Hedrick, 1988. Isolation, purification and partial chemical characterization of vitellogenin and vitellin from honey bee queens. International Conference of Africanized Honey Bees and Bee Mites, Columbus, Ohio.

Nasr, M. E., R. Thorp, T. L. Tyler & D. Briggs, 1990. Estimating honey bee (Hymenoptera: Apidae) colony strength by a simple method: Measuring cluster size. Journal of Economic Entomology 83(3): 748-754.

Nates-Parra, G. 1983. Abejas de Colombia: I. Lista preliminar de algunas especies de abejas sin aguijón (Hymenoptera: Apidae: Meliponinae). Rev. Biol. Trop. 31(1): 155-158.

Nates-Parra, G. 1996. Abejas sin aguijón (Hymenoptera: Meliponini) de Colombia. Cap 8, Pp. 181-268. En : Insectos de Colombia. Estudios escogidos. Andrade, G., Amat, G. & F. Fernández (Eds). Academia Colombiana de Ciencias Exactas, Físicas y Naturales. Santafé de Bogotá.

Nates-Parra, G. 1998. La IUSSI Bolivariana en Guanare, Venezuela. Tacayá 8: 2-4.

Nates-Parra, G. & O. I. Cepeda, 1983. Comportamiento defensivo en algunas especies de meliponinos colombianos (Hymenoptera: Meliponinae). Boletín Departamento de Biología 1(5): 65-82.

Nates [-Parra], G. & D. W. Roubik, 1990. Sympatry among subspecies of Melipona favosa in Colombia and a taxonomic revision. Journal of the Kansas Entomological Society 63: 200-203.

Nates-Parra, G., A. Villa & C. Vergara, 1989. Ciclo de desarrollo de Trigona (Tetragonisca) angustula, Lat. 1811 (Hymenoptera: Trigonini). Acta biológica Colombiana 1(5): 91-98.

Nation, J. L. & F. A. Robinson, 1971. Concentration of some major and trace elements in honeybees, royal jelly and pollens, determined by atomic absorption spectrophotometry. Journal of Apicultural Research 10(1): 35-43.

Nation, J. L., F. A. Robinson, S. J. Yu & A. B. Bolten, 1986. Influence upon honeybees of chronic exposure to very low levels of selected insecticides in their diet. Journal of Apicultural Research 25(3): 170-177.

Navarro, M. L., M. B. Perez-Gago & M.A. del Rio, 2005. Effect of hydroxypropyl methylcellulose-beeswax edible composite coatings on 'Angeleno' plum quality during storage. Acta horticulturae No. 682(2): 1089-1096. [Paper presented at the 5th interna-tional postharvest symposium held on June 6-11, 2004, Verona, Italy, volume 2].

Naves Da Silva, D. L., R. Zuccji & W. E. Kerr, 1972. Biological and behavioural aspects of the reproduction in some species of Melipona (Hymenoptera, Apidae, Meliponinae). Animal Behaviour 20(1): 123-132.

Nauen, R., U. Ebbinghaus-Kintscher & R. Schmuck, 2001. Toxicity and nicotinic acetylcholine receptor interaction of imidacloprid and its metabolites in Apis mellifera (Hymenoptera: Apidae). Pest Management Science 57(7): 577-586.

Naumann, I. D. [with contributions by C. van Achterberg, T. F. Houston, C. D. Michener & R. W. Taylor], Hyemnoptera (wasps, bees, ants, sawflies). In: CSIRO (ed.), The Insects of Australia. A Text book for students and Research Workers, Vol. 2, Chap. 42, pp. 916-1000. 2nd Edition. Melbourne University Press, Carlton.

Naumann, I. D., J. C. Cardale, et al. 1994. Type specimens of Australian Hymenoptera (Insecta) transferred from the Macleay Mueseum, University of Sydney, to the Australian National Insect Collection, Canberra. Proc. Linn. Soc. N. S. W. 114: 69-72.

Naumann, K. 1993. Stickers do not enhance longevity of honey bee queen mandibular gland pheromone. American Bee Journal 133(8): 581-583.

Naumann, K. & M. B. Isman, 1996. Toxicity of a neem (Azadirachta indica A. Juss) insecticide to larval honey bees. American Bee Journal 7: 518-520.

Naumann, K. & P. H. LaFlamme, 1993. Honey bee queen mandibular pheromone does not increase rate of sugar syrup and pollen supplement uptake. American Bee Journal 133(11): 797-798.

Naumann, K. & M. L. Winston, 1990a. Effects of swarm type on temporal caste polyethism in the honey bee, Apis mellifera L. (Hymenoptera: Apidae). Insectes Sociaux 37(1): 58-72.

Naumann, K. & M. L. Winston, 1990b. Effects of package production on temporal caste polyethism in the honey bee (Hymenoptera: Apidae). Annals of the Entomological Society of America 83(2): 264-270.

Naumann, K., M. L. Winston & K. N. Slessor, 1993. Movement of honey bee (Apis mellifera L.) queen mandibular gland pheromone in populous and unpopulous colonies. Journal of Insect Behavior 6(2): 211-223.

Naumann, K., M. L. Winston, K. N. Slessor, G. D. Prestwich & B. Latli, 1992. Intra-nest transmission of aromatic honey bee queen mandibular gland pheromone components: movement as a unit. The Canadian entomologist 124(5): 917-934.

Naumann, K., M. L. Winston, K. N. Slessor & M. J. Smirle, 1994. Synthetic honey bee (Hymenoptera: Apidae) queen mandibular gland pheromone applications affect pear and sweet cherry pollination. Journal of Economic Entomology 87(6): 1595-1599.

Naumann, K., M. L. Winston, K. N. Slessor, G. D. Prestwich & F. X. Webster, 1991. Production and transmission of honey bee queen (Apis mellifera L.) mandibular gland pheromone. Behavioral Ecology and Sociobiology 29(5): 321-332.

Naumann, K., M. L. Winston, M. H. Wyborn & K. N. Slessor, 1990. Effects of synthetic honey bee queen mandibular gland pheromone on worker in packages. Journal of Economic Entomology 83(4): 1271-1275.

Naumovski, M., G. Kolev & H. Kiprijanovska, H. 2000. The cubital index of the bees from the Republic of Macedonia. II. The Tikves region and the east region. Macedonian Agricultural Review 47(1/2): 71-75.

Navarro, L. 2000. Pollination ecology of Anthyllis vulneraria subsp. vulgaris (Fabaceae): nectar robbers as pollinators. American Journal of Botany 87(7): 980-985.

Navarro, L. 2001. Reproductive biology and effect of nectar robbing on fruit production in Macleania bullata (Ericaceae). Plant Ecology 152(1): 59-65.

Nazarov, S. S. & N. D. Dobrynin, 1981a. Species composition, numbers dynamics and ecologiсal peculiarities of Apoidea-lucerne pollinators. In: Bee Pollination of Entomophilic Crops and Honey Sources of Beekeeping. Sum. of Papers Intern. Symp. USSR, Kichinev: Apimondia, pp. 41-42. [In English].

Nazarov, S. S. & N. D. Dobrynin, 1981b. Species composition, numbers dynamics and ecologiсal features of bees-alfalfa pollinators. In: Pcheloopylenie entom. kultur i medonosnaya baza pchelovodstva. Dokl. Mezhdunar. symp. SSSR, Kishinev, 1981. Buchurest: Apimondia, pp.139-142. [In English].

Nazarov, S. S. & N. D. Dobrynin, 1981c. Pollinating activity of the main species of bees on alfalfa seed. In: Okhrana prirody Ts.Ch.P. Voronezh. II: 70-72.

Nazarov, S. S. & N. D. Dobrynin, 1981d. Species composition, numbers dynamics and ecological features of bees-alfalfa pollinators. In: Pcheloopylenie entom. kultur i medonosnaya baza pchelovodstva. Annot. dokl. Mezhdunar. symp. SSSR, Kishinev, 1981. Apimondia, pp.39-40. [In English].

Nazarov, S. S. & N. D. Dobrynin, 1984. Rearing and utilization of pollinators. Pchelovodstvo 8: 26-27.

Nazarov, S. S. & N. D. Dobrynin, 1985. Artificial rearing of leaf-cutting bees for improvement of alfalfa seed production. Inform.list. Voronezh.CNTI 14/39. 4p.

Nazarov, S. S. & N. D. Dobrynin, 1986. Pollinators as natural resources and the ways of their conservation and reproduction. In: Problemy i puti ratsion. ispolz. prirod. resursov i ikh okhrana. Tez. dokl. nauch. konf. Kaunas-Vilnius. 1986, Vilnius, pp. 103-106.

Nazer, I. K. & T. E. Archer, 1975. Protection of honey bees with oximedrugs from parathion and paraoxan poisoning. Libyan J. Sci. 5: 7-14.

Nazer, I. K., T. E. Archer, N. E. Gary & J. Marston, 1974. Honeybee pesticide mortality: intoxication versus acetylcholinesterase concentration. Journal of Apicultural Research 13(1): 55-60.

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Nazzi, F., N. Milani & G. D. Vedova, 2004. A semiochemical from larval food influences the entrance of Varroa destructor into brood cells. Apidologie 35: 403-410.

Nazzi, F., N. Milani, G. Della Vedova & M. Nimis, 2001. Semiochemicals from larval food affect the locomotory behaviour of Varroa destructor. Apidologie 32(2): 149-156.

Nazzi, F., G. D. Vedova & M. D'Agaro, 2004. A semiochemical from brood cells infested by Varroa destructor triggers hygienic behaviour in Apis mellifera. Apidologie 35(1): 65-70.

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Ne'eman, G. & A. Dafni, 1999. Fire bees and seed production in a Mediterranean key species Salvia fruticosa (Lamiaceae). Israel Journal of Plant Sciences 47: 157-163.

Ne’eman G., A. Dafni & S G. Potts, 1999. A new pollination probability index (PPI) for pollen load analysis as a measure of pollination effectiveness of bees. Journal of Apicultural Research 38: 19-23.

Ne’eman G., A. Dafni & S. G. Potts, 2000. The effect of fire on flower visitation rate and fruit set in four core-species in east Mediterranean scrubland. Plant Ecology 146: 97-104.

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Ne'eman, G. & R. Nesher, 1995. Pollination ecology and the significance of colour change in Lupinus pilosus L. Israel Journal of Plant Sciences 43: 135-145.

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Neff, J. L. 1984. Observations on the biology of Eremapsis parvula Ogloblin, an anthophorid bee with a metasomal scopa. Pan-Pacific Entomologist 60: 155-162.

Neff, J. L. 2003. Nest and provisioning biology of the bee Panurginus polytrichus Cockerell (Hymenoptera: Andrenidae), with a description of new Holcopasites species (Hymenoptera: Apidae), its probable nest parasite. Journal of the Klansas Entomological Society 76(2): 203-216.

Neff, J. L. 2004. Hooked hairs and not so narrow tubes: two new species of Colletes Latreille from Texas (Hymenoptera: Apoidea: Colletidae). Journal of Hymenoptera Research 13: 250-261.

Neff, J. L. & B. N. Danforth, 1992. The nesting and foraging behavior of Perdita texana (Cresson). Journal of the Kansas Entomological Society 64(4): 394-405.

Neff, J. L. & J. G. Rozen, Jr. 1995. Foraging and nesting biology of the bee Anthemurgus passiflorae (Hymenoptera: Apoidea), descriptions of its immature stages, and observations on its floral host (Passifloraceae). American Museum Novitates 3138: 1-19.

Neff, J. L. & B. B. Simpson, 1981. Oil-collecting structures in the Anthophoridae (Hymenoptera): Morphology, function and use in systematics. Journal of the Kansas Entomological Society 54: 95-123.

Neff, J. L. & B. B. Simpson, 1991. Nest, biology and mating behavior of Megachile fortis in central Texas. Journal of the Kansas Entomological Society 64: 324-336.

Neff, J. L. & B. B. Simpson, 1993. Bees, pollination systems and plant diversity. Pp. 143-167. In: J. LaSalle & I. D. Gauld (eds.), Hymenoptera and biodiversity. The Natural History Museum. C. A. B. International, Wallingford Oxon, UK.

Neff, J. L. & B. B. Simpson, 1997. Nesting and foraging behavior of Andrena rudbeckiae Robertson (Hymenoptera: Apoidea: Andrenidae) in Texas. Journal of the Kansas Entomological Society 70: 100-113.

Neff, J. L., B. B. Simpson & L. J. Dort, 1982. The nesting biology of Diadasia afflicta Cresson. Journal of the Kansas Entomological Society 55: 499-518.

Negri, G., M. C. Marcucci, A. Salatino & M. L. F. Salatino, 2000. Comb and propolis waxes from Brazil: triterpenoids in propolis waxes. Journal of Apicultural Research 39(1/2): 86-88.

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Nel, A., X. Martínez-Delclòs, A. Arillo & A.Peñalver, 1999. A review of the Eurasian fossil species of the bee Apis. Palaeontology 42(2): 243-285.

Nelson, D. L. & N. E. Gary, 1983. Honey productivity of honey bee (Apis mellifera) colonies in relation to body weight, attractiveness and fecundity of the queen. Journal of Apicultural Research 22(4): 209-213.

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