{"id":3701,"date":"2017-03-04T05:24:21","date_gmt":"2017-03-04T13:24:21","guid":{"rendered":"http:\/\/www.vicnhs.bc.ca\/?p=3701"},"modified":"2017-05-26T09:08:56","modified_gmt":"2017-05-26T16:08:56","slug":"2017-march-4","status":"publish","type":"post","link":"https:\/\/www.vicnhs.bc.ca\/?p=3701","title":{"rendered":"2017 March 4"},"content":{"rendered":"<div>\n<p><strong>2017 March 4<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>\u00a0\u00a0 <\/strong>Where do flies go in winter?\u00a0 Well, these two elected to spend the winter in a rotten log on southern Vancouver Island, where they were photographed by Leah Ramsay.\u00a0 Although it is difficult to be certain of the exact identity, it is pretty sure that these are a species of <strong>cluster fly <em>Pollenia <\/em>sp.\u00a0 <\/strong>Rob Cannings writes:\u00a0 <em>P. rudis <\/em>used to be considered the sole species in North America, but recent revisionary work has resulted in six species, all found in British Columbia.\u00a0 Five of these occur on Vancouver Island.\u00a0 They are earthworm parasitoids and, as you might expect from their hosts, are introduced from Europe.\u00a0 They are among the most common flies around in fall through spring as they overwinter as adults.\u00a0 Sometimes they fly in warm winter days here; usually you see them sunning on warm walls.\u00a0 They are duller looking than most blow flies (lack metallic sheen) and have characteristic crinkly yellow hairs on the thorax (sometimes not easy to see).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" title=\"ev.owa.jpg\" src=\"https:\/\/www.vicnhs.bc.ca\/wp-content\/uploads\/2017\/03\/ev.owa_.jpg\" width=\"514.4\" height=\"342.04027777777776\" name=\"\" \/><\/p>\n<p style=\"text-align: center;\">\u00a0Probably <em>Pollenia\u00a0 <\/em>sp. (Dip.: Calliphoridae)\u00a0 Leah Ramsay<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>2017 March 4 \u00a0 \u00a0\u00a0 Where do flies go in winter?\u00a0 Well, these two elected to spend the winter in a rotten log on southern Vancouver Island, where they were photographed by Leah Ramsay.\u00a0 Although it is difficult to be certain of the exact identity, it is pretty sure that these are a species of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-3701","post","type-post","status-publish","format-standard","hentry","category-invertebrate-alert"],"_links":{"self":[{"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=\/wp\/v2\/posts\/3701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3701"}],"version-history":[{"count":4,"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=\/wp\/v2\/posts\/3701\/revisions"}],"predecessor-version":[{"id":3714,"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=\/wp\/v2\/posts\/3701\/revisions\/3714"}],"wp:attachment":[{"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vicnhs.bc.ca\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}