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Difficulties in the phylogenetic reconstruction exemplified by certain mason bees

, : Difficulties in the phylogenetic reconstruction exemplified by certain mason bees. Natur und Museum 104(7): 219-226

In Osmia species the clypeus, which seems to be specially suitable for collecting pollen from small flowers such as Muscari, is found in 8 different forms. A study of the gonostylus revealed 4 different structures, and comparison of hair colours and patterns showed 2 basic types.The Osmia species are differently distributed throughout Europe and show various combinations of clypeus, gonostylus and hair pattern.


Other references

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Schulz, G.E.F., 1911: Ornithologische Tagebuchblatter von meiner Lapplandreise 1909. Ornithologische Monatsschrift Magdeburg, 36 268-277: 297-307: 361-374: 393-400

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Mo, Y.; Barnett, M.E.; Takemoto, D.; Davidson, H.; Kompella, U.B., 2007: Human serum albumin nanoparticles for efficient delivery of Cu, Zn superoxide dismutase gene. PURPOSE: To assess the potential of human serum albumin nanoparticles (HSA NP) as a nonviral vector for ocular delivery of Cu, Zn superoxide dismutase (SOD1) gene.METHODS: Cu, Zn superoxide dismutase (SOD1) gene-encapsulated nanoparticles (NP) we...

Groth, W., 1962: The osteopathies of Ca and P deficiency and their relation to parathyroid function and to the mineral content of the blood in growing chickens.. From 3 weeks of age 5 groups of 40 broiler chickens, caged in tens, were given the same basal diet but with different amounts of CaCO3 Na2HPO4 and K2HPO4. For the control group percentages of Ca and of PO4 and their ratio were 1.38, 0.92 and 1.50;...

Mita, T.; Nakanishi, Y.; Ochiai, A.; Shimoda, T.; Kato, H.; Yamaguchi, H.; Toda, G., 1999: Paraneoplastic vasculitis associated with esophageal carcinoma. We report a case of esophageal carcinoma associated with paraneoplastic vasculitis. A 69-year-old man suffered from low-grade fever and numbness of the lower limbs for 3 months before esophageal and gastric carcinomas were detected. Concurrent inf...

Nagibin, L.M., 1959: Injury to epiphysial temporary cartilage during intramedullary osteosynthesis; experimental studies. Ortopediia Travmatologiia i Protezirovanie 20(4): 20-24

Ikemoto, K.; Arai, R.; Nishimura, A.; Nishi, K.; Kitahama, K.; Nagatsu, I., 1998: Aromatic L-amino acid decarboxylase -positive neurons in human cerebral cortex Do they synthesize dopamine?. Society for Neuroscience Abstracts 24(1-2): 1600