{"id":1326,"date":"2017-11-22T23:14:32","date_gmt":"2017-11-22T23:14:32","guid":{"rendered":"https:\/\/aphidtrek.org\/?page_id=1326"},"modified":"2024-12-15T21:04:24","modified_gmt":"2024-12-15T21:04:24","slug":"eomacrosiphon","status":"publish","type":"page","link":"https:\/\/aphidtrek.org\/?page_id=1326","title":{"rendered":"Eomacrosiphon"},"content":{"rendered":"\n

Eomacrosiphon nigromaculosum <\/em>(MacDougall)<\/strong><\/p>\n\n\n\n

After almost 30 years of avidly collecting aphids on wild roses, knowing this species was out there somewhere and feeling frustrated at not finding it, in 2017 I finally stumbled on it just outside Lakeview. \u00a0It was growing on a patch of roses on a cold slope in a steep, braided mountain stream.\u00a0 At first I didn\u2019t know what it was, having never seen a photo of E. nigromaculosum<\/em>.\u00a0 I was also thrown off by the short siphunculi that look more like a Brachycaudus<\/em> or big Dysaphis<\/em> than what I expected of E. nigromaculosum<\/em>.\u00a0 Eventually I realized what I had found, and concluded that the short siphunculi were owing to the fact that these specimens were fundatrices (this stage often has short siphunculi in Aphidinae).\u00a0 Subsequently I was able to collect summer apterous females, and in early September, oviparae and males. Previous to the samples mentioned above, I had only one specimen of E. nigromaculosum<\/em> from an unidentified species of Arnica<\/em> (Asteraceae).\u00a0 At the time of the collection, I assumed it was a migrant, casually found on Arnica<\/em>. In July 2019, however, I found several confirmed nascent colonies of E. nigromaculosum<\/em> on an\u00a0Arnica<\/em> in the mountains of eastern Idaho. This implies a heteroecious life cycle, but further confirmatory field work will be required.<\/p>\n\n\n

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Eomacrosiphon nigromaculosum fundatrix on a wild rose near Lakeview, OR.<\/figcaption><\/figure>\n<\/div>\n\n
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Eomacrosiphon nigromaculosum second generation on a wild rose near Lakeview, OR.<\/figcaption><\/figure>\n<\/div>\n\n
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Eomacrosiphon migromaculosum on an Arnica along Mores Creek in eastern Idaho.<\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"

Eomacrosiphon nigromaculosum (MacDougall) After almost 30 years of avidly collecting aphids on wild roses, knowing this species was out there somewhere and feeling frustrated at not finding it, in 2017 I finally stumbled on it just outside Lakeview. \u00a0It was growing on a patch of roses on a cold slope in a steep, braided mountain […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":256,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1326","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/aphidtrek.org\/index.php?rest_route=\/wp\/v2\/pages\/1326","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aphidtrek.org\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aphidtrek.org\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aphidtrek.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aphidtrek.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1326"}],"version-history":[{"count":5,"href":"https:\/\/aphidtrek.org\/index.php?rest_route=\/wp\/v2\/pages\/1326\/revisions"}],"predecessor-version":[{"id":2150,"href":"https:\/\/aphidtrek.org\/index.php?rest_route=\/wp\/v2\/pages\/1326\/revisions\/2150"}],"up":[{"embeddable":true,"href":"https:\/\/aphidtrek.org\/index.php?rest_route=\/wp\/v2\/pages\/256"}],"wp:attachment":[{"href":"https:\/\/aphidtrek.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}