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5E: Monstrous Arthropods for Fifth Edition
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<blockquote data-quote="Cleon" data-source="post: 9253075" data-attributes="member: 57383"><p>Okay, I've been checking my proportions and I've definitely got some of the wingspans off.</p><p></p><p>The damselflies tend to have proportionally shorter wings than dragonflies as their abdomens are so elongated, and some tropical damselflies have even thinner bodies in proportion to their length.</p><p></p><p>Obviously there's a great deal of variation from species to species.</p><p></p><p>The beautiful demoiselle <em><a href="https://en.wikipedia.org/wiki/beautiful_demoiselle" target="_blank">Calopteryx virgo</a></em> is a decent model for my Giant Damselfly. The latter are 49–54mm long with 31–37mm hindwings, which ought to give it a wingspan of perhaps 65–77mm [ratio 1.327–1.426].</p><p></p><p>The swift forktail damselfly <em><a href="https://en.wikipedia.org/wiki/Ischnura_erratica" target="_blank">Ischnura_erratica</a></em> has proportionally shorter wings, being 30–35mm long with a 35–40mm wingspan [ratio 1.116–1.143].</p><p></p><p>The Persian damselfly <em><a href="https://en.wikipedia.org/wiki/Ischnura_intermedia" target="_blank">Ischnura intermedia</a></em> is 27–30mm long but its wings only span 18mm [ratio 0.6–0.666].</p><p></p><p>The most extreme examples I could find were the blue-winged helicopter damselfly <em><a href="https://en.wikipedia.org/wiki/Megaloprepus_caerulatus" target="_blank">Megaloprepus caerulatus</a></em>, which has the longest wings of any known odonatid and maxes out at 130mm long with a 190mm wingspan [ratio 1:46](I also found measurements of a specimen 115mm long with a 173mm wingspan [ratio 1.504) and <em><a href="https://en.wikipedia.org/wiki/Mecistogaster_lucretia" target="_blank">Mecistogaster lucretia</a></em> which has the longest body, reaching 150mm with a 125mm wingspan [ratio 0.833]. </p><p></p><p>Remember, <em>Megaloprepus caerulatus</em> served as the inspiration for my Tropical Giant Damselfly.</p><p></p><p>Dragonflies tend to be built stockier than damselflies so often have higher wing-to-body ratios and/or broader wings to support their weight. The most extreme cases I could find were the giant petaltail <em><a href="https://en.wikipedia.org/wiki/Petalura_ingentissima" target="_blank">Petalura ingentissima</a></em>, which may be the largest overall, 125mm long and 158–162mm [ratio 1.296–1.264]; the heaviest might be the gigantic riverhawker <em><a href="https://en.wikipedia.org/wiki/Tetracanthagyna_plagiata" target="_blank">Tetracanthagyna plagiata</a></em> which gets up to about 100mm length and 163mm wingspan [ratio 1.63], while the one with the greatest wing area might be <em><a href="https://en.wikipedia.org/wiki/Petalura_ingentissima" target="_blank">Petalura ingentissima</a></em>, which has been measured at 101mm long with a ~130mm wingspan [ratio 1,287] and a maximum wing breadth up to 34 mm.</p><p></p><p>Going by those figures, I've been setting the body-to-wing ratios of my Odonatids too high.</p><p></p><p>It also occurs to me that it might make more sense to give the variants the same or similar wingspans as the base odonate since they have the same power and weight, presumably they would need similar sized wings to support them assuming the wing loading and wing proportions are similar.</p><p></p><p>Also, the biggest dragonflies may be shorter than the biggest damselflies but they're considerably heavier and more powerfully built.</p><p></p><p>If a giant tropical damselfly is 4,000 pounds as a Huge monster, a Huge dragonfly might scale to be about 6,000 pounds and would likely have STR 22 or higher.</p><p></p><p>Might stat up a separate "Tropical Titanic Dragonfly" to represent them.</p></blockquote><p></p>
[QUOTE="Cleon, post: 9253075, member: 57383"] Okay, I've been checking my proportions and I've definitely got some of the wingspans off. The damselflies tend to have proportionally shorter wings than dragonflies as their abdomens are so elongated, and some tropical damselflies have even thinner bodies in proportion to their length. Obviously there's a great deal of variation from species to species. The beautiful demoiselle [I][url='https://en.wikipedia.org/wiki/beautiful_demoiselle']Calopteryx virgo[/url][/I] is a decent model for my Giant Damselfly. The latter are 49–54mm long with 31–37mm hindwings, which ought to give it a wingspan of perhaps 65–77mm [ratio 1.327–1.426]. The swift forktail damselfly [I][URL='https://en.wikipedia.org/wiki/Ischnura_erratica']Ischnura_erratica[/URL][/I] has proportionally shorter wings, being 30–35mm long with a 35–40mm wingspan [ratio 1.116–1.143]. The Persian damselfly [I][URL='https://en.wikipedia.org/wiki/Ischnura_intermedia']Ischnura intermedia[/URL][/I] is 27–30mm long but its wings only span 18mm [ratio 0.6–0.666]. The most extreme examples I could find were the blue-winged helicopter damselfly [I][url='https://en.wikipedia.org/wiki/Megaloprepus_caerulatus']Megaloprepus caerulatus[/url][/I], which has the longest wings of any known odonatid and maxes out at 130mm long with a 190mm wingspan [ratio 1:46](I also found measurements of a specimen 115mm long with a 173mm wingspan [ratio 1.504) and [I][url='https://en.wikipedia.org/wiki/Mecistogaster_lucretia']Mecistogaster lucretia[/url][/I] which has the longest body, reaching 150mm with a 125mm wingspan [ratio 0.833]. Remember, [I]Megaloprepus caerulatus[/I] served as the inspiration for my Tropical Giant Damselfly. Dragonflies tend to be built stockier than damselflies so often have higher wing-to-body ratios and/or broader wings to support their weight. The most extreme cases I could find were the giant petaltail [I][url='https://en.wikipedia.org/wiki/Petalura_ingentissima']Petalura ingentissima[/url][/I], which may be the largest overall, 125mm long and 158–162mm [ratio 1.296–1.264]; the heaviest might be the gigantic riverhawker [I][url='https://en.wikipedia.org/wiki/Tetracanthagyna_plagiata']Tetracanthagyna plagiata[/url][/I] which gets up to about 100mm length and 163mm wingspan [ratio 1.63], while the one with the greatest wing area might be [I][url='https://en.wikipedia.org/wiki/Petalura_ingentissima']Petalura ingentissima[/url][/I], which has been measured at 101mm long with a ~130mm wingspan [ratio 1,287] and a maximum wing breadth up to 34 mm. Going by those figures, I've been setting the body-to-wing ratios of my Odonatids too high. It also occurs to me that it might make more sense to give the variants the same or similar wingspans as the base odonate since they have the same power and weight, presumably they would need similar sized wings to support them assuming the wing loading and wing proportions are similar. Also, the biggest dragonflies may be shorter than the biggest damselflies but they're considerably heavier and more powerfully built. If a giant tropical damselfly is 4,000 pounds as a Huge monster, a Huge dragonfly might scale to be about 6,000 pounds and would likely have STR 22 or higher. Might stat up a separate "Tropical Titanic Dragonfly" to represent them. [/QUOTE]
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