. Über Stechmücken besonders deren europäische Arten und ihre Bekämpfung. Diptera; Insect pests -- Control. Fig. 91. Gralienschaufel in Tätigkeit (aus Fülleborn, Archiv f. Schiffs- u. Tropenhyg., Bd. 17, Beih. 7.). Fig. 92. (Ti-alieuslige (nach Smith.). 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 Martini, Erich Christian Vilhelm, 1880-; Hamburgische Wissenschaftliche Stiftung. Leipzig, Verlag von Johann Ambrosius Barth

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiptera, bookyear1920