Kovács I. Endre szerk.: Rovartani Közlemények (Folia Entomologica Hungarica 12/1-39. Budapest, 1959)
effect of the formaline pre-treatroent , the nerves obtain a pale metallic hue, the ganglia and other centres receive a light yellow color, they get rigid like a chord and do not shrink any more, which highly facilitate their exposure. Felelős: Steinraann Henrik Magyar Rovartani Társaság, Budapest, VIII.Baross-u 13,
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