http___www.theskepticalmoth.com_2013_06_05_the-last-butterfly-described-in-the-us__lang_hr_1.xml
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The Last Butterfly Described in the US? By Chris Grinter, on June 5th, 2013 I came across this short article today claiming that this recent description of the hairstreak butterfly, Ministrymon janevicroy Glassberg 2013, may in fact be the “last truly distinctive butterfly species left to be discovered in the United States…. [and] the era of new U.S. butterfly species is ending”. I find that statement a little bit odd. One one hand it seems obvious, most of the butterflies in the United States were described long ago. 90% of the hairstreak butterflies were described before 1900 and 97.5% before 2000 (R. Robbins pers. On the other hand it gives me an itch in the back of my brain that may falsely imply we’ve completed a task and we can move past collecting or research on butterflies. I don’t think the authors intended the latter – and while it’s good to realize we’ve come this far in butterfly taxonomy, it might be helpful to discuss how far we haven’t come (especially when you consider moths!). The paper itself (free from Zookeys above) is great – it very carefully outlines the case to separate these species and I would easily agree with their conclusions. The closest the authors get to saying this is the last butterfly to be described in the US is here at the end of page 14 and onto page 15. The Eumaeini fauna of the United States is well-documented, and most species described in the past 75 years have arguably been cryptic species that had been overlooked because of wing pattern similarity with known species. In sharp contrast, slightly more than 20% of the Central and South American eumaeine fauna is undescribed (Robbins 2004b), but the vast majority of these undescribed species are exceedingly rare in museum collections, unlike M. janevicroy. Assessing variation of these rare species remains an obstacle to documentation. And as it turns out the lines about the last butterfly were from a press release written by the authors (pers. comm.). But to me it sounds like splitting hairs, are these butterflies really that distinct? New butterflies are still being described from the US from less obvious characters as eye color, but often have large differences in the genitalia – and these characters can often be much more distinctive than a color feature that fades in preserved specimens. So, yes, this is perhaps the last species to be found that could be told apart in the field. But if anything it points at how much we need specimens in collections to figure these things out in the first place. The authors used 88 specimens of M. janevicroy and compared them to hundreds of other specimens of other species. Good thing there are collectors working hard in the field to find as many of these butterflies as possible (and often at the time not knowing exactly what they are catching). As lepidopterists look closer at the differences separating many of our more diminutive species new names are created to describe what was once thought to be one larger, wide-ranging, single species. And any readers of my blog should well be aware that many, many moth species are left to be described in the United States. I know of a few revisions that are upcoming that are going to nearly double the size of relatively large families of big and well collected moths – not to mention how little progress we’ve made in the microlepidoptera. One estimate I’ve heard suggests that only 20% of the Tortricidae moth species have been described! When intensive revisions are conducted of these smaller groups the species numbers explode. Go out and collect! Related Comments are closed.
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Zadnja Butterfly Opisano u SAD-u? Chris Grinter, 5. lipnja, 2013 Došao sam na ovo kratki članak Danas tvrdi da ova nedavna opis od hairstreak leptir, Ministrymon janevicroy Glasenberg 2013, mogu biti u stvari “Posljednji doista osebujna vrste leptira lijevo biti otkrivena u SAD-u…. [i] era novog dopuštenje vlade. leptir vrsta Obustavlja”. Ne mogu naći tu izjavu malo čudno. Jedan jedne strane, čini se očito, većina leptira u Sjedinjenim Državama su opisani davno. 90% od hairstreak leptira su opisani ranije 1900 i 97.5% prije 2000 (R. Robbins osobe. comm.). S druge strane, to mi daje šuga u stražnjem dijelu mozga koji se lažno implicirati da smo završili posao i da možemo premjestiti prošlosti prikupljanja ili istraživanja o leptirima. Ne mislim da su autori namijenjen potonji – i dok ga je dobro da shvate da smo tako daleko došli u leptir taksonomija, to bi moglo biti od pomoći kako bi razgovarali o tome kako sada nismo došli (pogotovo kad uzmete u obzir moljaca!). Sam rad (bez Zookeys gore) je super – to vrlo pažljivo ocrtava slučaj odvojiti te vrste, a ja bih se lako složiti s njihovim zaključcima. Najbliže autori doći do rekavši da je ovo posljednji leptir biti opisano u SAD-u je ovdje na kraju stranice 14 i na stranici 15. U Eumaeini fauna SAD-u je dobro dokumentirano, vrsta, a većina je opisano u prošlosti 75 godina nedvojbeno su grobni vrsta koja je previdjeti jer uzorak krila sličnosti s poznatim vrstama. … U oštrom kontrastu, nešto više nego 20% od eumaeine faune Srednje i Južne Amerike je undescribed (Robbins 2004b), ali velika većina tih undescribed vrste su izuzetno rijetke u muzejskim zbirkama, za razliku od M. janevicroy. Procjena odstupanja od tih rijetkih vrsta i dalje prepreka dokumentacije. I kao što se ispostavilo linije oko posljednjeg leptira su od priopćenju napisao autora (tisak. comm.). Ali mi to zvuči kao cijepanje dlake, su ti leptiri stvarno tako različita? Novi leptiri još se opisuje iz SAD-a od manje očitih znakova što su boja očiju, ali često imaju velike razlike u genitalije – a ovi likovi često može biti mnogo više nego prepoznatljiv lik u boji koji nestaje u očuvanih primjeraka. Tako, da, ovo je možda posljednja vrsta može naći koja bi mogla biti ispričana, osim u području. No, ako ništa drugo to ukazuje na to koliko nam je potrebno uzorke u zbirkama shvatiti ove stvari na prvo mjesto. Autori koriste 88 primjerci M. janevicroy i usporedio ih stotine drugih primjeraka drugih vrsta. Dobra stvar su kolektori naporno rade na terenu kako bi pronašli što više tih leptira što je više moguće (i često na vrijeme ne znajući točno što su lov). Kao lepidopterists Ako bolje razlike koje razdvajaju mnogi naši više deminutiv vrsta nova imena su stvorene kako bi opisao ono što je jednom mislio da se jedan veći, mnogostrane, pojedinačne vrste. I bilo čitatelji mog bloga trebao bi biti svjesni da su mnogi, mnoge vrste moljac se ostavi da se opisani u United States. Znam za nekoliko izmjena koje su predstojeći koje će gotovo dvostruko veći od relativno velike obitelji velikih i dobro prikupljenih moljaca – da ne spominjem koliko je malo napretka smo napravili u microlepidoptera. Jedna procjena Čuo sam sugerira da je samo 20% od Tortricidae moljac vrste su opisane! Kad intenzivne revizije provode se od tih manjih skupina brojeva vrsta eksplodirati. Idi van i prikupiti! povezan