{"id":707,"date":"2011-11-11T18:19:10","date_gmt":"2011-11-11T18:19:10","guid":{"rendered":"http:\/\/tachinidae.org.uk\/blog\/?p=707"},"modified":"2011-11-11T18:29:33","modified_gmt":"2011-11-11T18:29:33","slug":"a-typical-tachinid-wing","status":"publish","type":"post","link":"https:\/\/tachinidae.org.uk\/blog\/a-typical-tachinid-wing\/","title":{"rendered":"A typical tachinid wing"},"content":{"rendered":"

This is a photograph of a Tachina grossa<\/em> wing, annotated to show the commonest features that are used in the keys:<\/p>\n

\"\"<\/a>I always orient myself by looking for the smallest vertical vein called\u00a0r-m<\/strong>, the little one in the middle – it links the last true radial vein (r4+5<\/strong>) to the median<\/strong>. The median vein is probably the most important in tachinids because it often bends in different ways and either joins or doesn’t join r4+5. If the median vein joins r4+5 before the wing edge then it forms a small stalk called the petiole<\/strong> (not on this photo). Sometimes the bend has a little stalk (appendix<\/strong> – not in this photo) or crease that extends towards the wing margin. If you go up from r4+5 the next radial is r2+3 and these 2 veins meet together, near the body, at another important areas called the node<\/strong>. The node has varying numbers of hairs on it and sometimes these hairs extend along r4+5 towards or even beyond r-m. Above r2+3 you will see r1<\/strong> and then to the left sc<\/strong>, the sub-costal vein. Along the leading edge is the costal<\/strong> vein (annotated in sections – CSx<\/strong>) – these sections are of varying relative lengths and this can be important. The last section (CS6<\/strong>) extends to a notional point that is the tip of the wing. Below the median vein the next radial is called the cubital<\/strong> vein and it is linked to the median by m-cu<\/strong>. The point where m-cu joins the median is important in some species, as is the length of the section of the cubital beyond m-cu. The final vein that is of interest to us is the anal<\/strong> vein – we are usually just asked to see whether it extends to the edge of the wing, but watch out – make sure that it isn’t just a crease that meets the wing edge! \ud83d\ude09<\/p>\n","protected":false},"excerpt":{"rendered":"

This is a photograph of a Tachina grossa wing, annotated to show the commonest features that are used in the keys: I always orient myself…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[322],"tags":[381],"class_list":["post-707","post","type-post","status-publish","format-standard","hentry","category-tutorials","tag-tachina-grossa"],"_links":{"self":[{"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/posts\/707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/comments?post=707"}],"version-history":[{"count":5,"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/posts\/707\/revisions"}],"predecessor-version":[{"id":713,"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/posts\/707\/revisions\/713"}],"wp:attachment":[{"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/media?parent=707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/categories?post=707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tachinidae.org.uk\/blog\/wp-json\/wp\/v2\/tags?post=707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}