. Die forstinsekten Mitteleuropas. Ein lehr- und handbuch. Trees; Beneficial insects. Abb. 471. Flügelgeäder von Cheimalobia boreata Hb. >v. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Escherich, Karl, 1871-; Judeich, Johann Friedrich, 1828-1894. Lehrbuch der mitteleuropäischen forstinsektenkunde; Nitsche, Hinrich, 1845-1902. Lehrbuch der mitteleruropäischen forstinsektenkunde. Berlin, P. Parey

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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectbeneficialinsects