Perhaps most important, in 1840, the Belgian aristocrat, Baron Edmond de Sélys Longchamps, published, in collaboration with Hermann Hagen, Monographie des Libellulidées d’Europe, the first publication that attempted to treat all the Odonata of Europe, including previously and newly described species. Rambur described some 360 species in 33 genera, almost certainly the greatest number described in a single work. in six genera and Say published the first work on North American “Neuroptera” (including Odonata). Montgomery suggested, with good reason, that the years 1839–1842 saw the establishment of Odonata as a distinct subject of study in their own right. Thus, the type genera of families occurring in Europe and North America (plus Anax, which has remained in Aeshnidae) were all described, although the families were not all recognized as such. Leach was the next to advance classification markedly by establishing families similar to those today, here listed with the included genera: (1) In Libellulida- Libellula L., Cordulia gen nov.
and Libellula puella L., and in 1793 established what we now consider an order, the Odonata. Fabricius was first to establish formal subdivisions within Odonata, erecting the new genera Aeshna (including species of our present-day aeshnids and gomphids) and Agrion for Libellula virgo L. Linnaeus placed all Odonata (he recognized 18 species) in his Classis Insecta, Ordo Neuroptera, and in a single genus, Libellula. The most recent and extensive molecular phylogenies of Insecta as a whole suggests that Palaeoptera and Neoptera are, after all, monophyletic sister taxa.
#Arch pain in foot during ruck plus
Alternatively, Odonata plus Neoptera have been considered to be a monophyletic taxon (= Metapterygota) that is sister to Ephemeroptera, or Ephemeroptera plus Pterygota (= Opisthoptera or Chiastomyaria) placed as sister to Odonata (reviewed in ). The Odonata plus Ephemeroptera have traditionally been placed together in Palaeoptera (insects that cannot fold their wings horizontally over their back). perhaps part of the otherwise extinct suborder Anisozygoptera), and Anisoptera (ca. In fact, Odonata is a small order, by insect standards, with roughly 6300 species worldwide, allocated among three suborders: Zygoptera (damselflies, ca. It is a stark example of the fact that most of us see only a narrow slice of reality. When I would say about 180 species, they were invariably flabbergasted-the usual first guess was about five or 10 species. Many asked specifically about how many species occur in New Jersey (where I did most of my research). Most people were bemused (rarely alarmed) by what I was doing and not infrequently asked about dragonflies. More than once, while I was collecting or observing Odonata in the field, I have encountered interested non-entomologists. Despite being so well known as a group, distinctions among species and even higher taxa often seem to be overlooked by the public.
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