. A classification of the larvae and puparia of the Syrphidae of Illinois, exclusive of aquatic forms. Syrphidae; Insects; Diptera; Larvae. 145 Volucella sp. Microdon sp. 10. 146 Cerioldes 5'ujnifera iimm. PLATE XVII. 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 Heiss, Elizabeth Madeleine, 1907-. Urbana, The University of Illinois press

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Keywords: ., bookcentury1900, booksubj, booksubjectdiptera, booksubjectinsects