. Biologie der Eupithecien. Eupithecia. 49. 1 HELVETICARIA, VERA 2 FORM A: ARCEUTHATA. 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 Dietze, Karl. Berlin, R. Friedla?nder & Sohn

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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1910, bookyear1910