. Annales de biologie lacustre. Natural history; Freshwater animals; Freshwater plants; Lakes. Fig. 8. — Un Elmis aeneus, vu latéralement. En A, la tête est rétractée dans le prothorax. En B, position de la tête lorsque l'insecte broute. Les régions revêtues de poils hydrofuges sont en 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 Station biologique d'Overmeire. Bruxelles : F. Vanbuggenhoudt

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Keywords: ., bookcentury1900, bookdec, booksubjectnaturalhistory, bookyear1912