Megachile

Frohlich, D.R., 1990. Substrate specificity of esterases in a solitary bee. Megachile rotundata (Hymenoptera Megachilidae) variability in sex, age and life stage. Biochem. Syst. Ecol. 18, 539-547. 

We have also found another phytophagous hymenopteran, the alfalfa leafcutter bee. Megachile rotunda to. that utilizes dietary phytosterols similarly to the honey bee (30). As in the honey bee, 24-methylenechol esterol was a major component (34.1% of the total sterols) of the sterols of newly-emerged adults. In addition, there was little cholesterol (<0.5% of the total sterols), indicating that this species also lacks the ability to produce cholesterol from... 

Year/Ref Compound Megachile rotundata Nomia melanderi Bombus terrestris Trigona spinipes Apis mellifera... 

Figure 7.1 Mortality rate and knock-down effect of four insecticides against Megachile rotundata males exposed to residues on paper (after Tasei and Dinet, 1981) [23].

Figure 7.2 Survival of Megachile rotundata females nesting in greenhonse cages and exposed to Medicago saliva treated with three insecticides (after...

Figure 7.4 Egg-laying activity of Megachile rotundata in 50 nests in each of two experimental alfalfa plots, one of which was treated on Day 3 with trichlorfon (after Torchio, 1983) [58].

Table 7.5 Mortality rates of different stages of Megachile rotundata progeny (after Tasei and Carre, 1985) [59]...

Krunic, M.D., Tasei, J.N. and Pinzauti, M. (1995). Biology and management of Megachile rotundata Fabricius under European conditions. Apicoltura 10, 71-97. 

Johansen, C., Jaycox, E.R. and Hutt, R. (1963). The Effect of Pesticides on the Alfalfa Leafcutting Bee Megachile rotundata. Stations Circular 418, Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, Washington State University, p. 12. 

Ixe, R.M. (1972). Xenobiotic detoxication potential and drug induced changes in carbaryl toxicity in the alfalfa leafcutter bee. Megachile rotundata (Eabri-cius). Diss. Abst.y Int. serie B. 33, no. 1. 

Tasei, J.N. and Dinet, P. (1981). Effets compares de deux pyrethrinoides de synthdse et de trois insecticides organophosphores sur les megachiles Megachile rotundata F. = pacifica Pz.). Apidologie 12, 363-376. 

Tasei, J.N. (1977). Methode de test de toxicite des insecticides applicable aux abeilles solitaires et plus particulierement a Megachile pacifica Pz. (Hymenoptera Megachilidae). Apidologie 8,129-139. 

Tasei, J.N. and Carre, S. (1987). Effects of the pyrethroid insecticide, WL 85871 and phosalone on adults and progeny of the leaf-cutting bee Megachile rotun-data F. pollinator of lucerne. Pestic. Sci. 21,119-128. 

Mayer, D.E. and Lunden, J.D. (1999). Field and laboratory tests of the effects of fipronil on adult female bees of Apis mellifera. Megachile rotundata and Nomia melanderi. J. Apic. Res. 38,191-197. 

Charnetski, W.A. (1988). Toxicity of insecticides to the alfalfa leafcutter bee, Megachile rotundata F. (Hymenoptera Megachilidae), established by three evaluation methods. Can. Entomol. 120, 297-305. 

George, D.A. and Rincker, C.M. (1982). Residues of commercially used insecticides in the environment of Megachile rotundata. J. Econ. Entomol. 75,319-323. 

Rincker, C.M. and George, D.A. (1985). Effect of pesticide residues in alfalfa pollen and nectar on the foraging and reproduction activities of alfalfa leafcutting bees Megachile rotundata. J. Appl. Seed Prod. 3, 33-37. 

Heller, J.J., Baumeister, R., Mattioda, H. and Tasei, J.N. (1990). A new method to test the hazards of insecticide spraying on Megachile rotundata F. Trials in tunnels. In Proceedings of the IVth International Symposium on The Harmonization of Methods for Testing the Toxicity of Pesticides to Bees (Research Institute of Apiculture at Dol, Czechoslovakia, Ed.). May 15-18, Rez, Czechoslovakia, pp. 41-45. 

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