<div><span lang="en"><span>Dear Francis and Wouter,</span></span></div><div>š</div><div><span lang="en"><span>Many thanks for replies! </span></span><span lang="en"><span>This is very</span> <span>valuable information for my colleagues from StPeterburg University (Russia).</span> <span>Indeed,</span> <span>very</span> <span>little data on</span> <span>the density</span> <span>of the Eristalis larvae</span> <span>in the open literature</span><span>.</span> <span>Once again very</span> <span>grateful!</span></span></div><div>š</div><div><span lang="en"><span>Best regards,</span></span></div><div><span lang="en"><span>Grigory.</span></span></div><div>š<br />***************************************<br />Grigory V. Popov, Dr, PhD<br />senior research worker<br />Section of Population Genetics<br />Donetsk Botanic Gardens<br />National Academy of Sciences of Ukraine<br />Illicha av. 110, 83059 Donetsk<br />UKRAINE<br />office +38062-2941280 (fax)<br />mobile +38050-5638552<br />https://sites.google.com/site/syrphidaeofukraine/<br />e-mail mbu@yandex.ru</div>