To reignite the Monday Moth series here is a stunner: Melemaea magdalena (Geometridae).
This rare beauty has previously only been known from scattered localities across the mountain west and only from a few individuals every other season. That is until Denver Museum volunteer Barbara Bartell began inventorying moths on her property near Golden Gate Canyon State Park in the Rocky Mountain front range. Over 8,000′ these moths turn out to be a regular visitor at her cabin blacklight and we now have the largest series known of this stunning species (and all perfectly curated!).
ఈ బ్లాగుకు సరైన రెండు విషయాలను మిళితం చేయడానికి డెన్వర్‌కు వదిలివేయండి – కీటక శాస్త్రం మరియు సంశయవాదం! మీరు ఈ క్లిప్‌లను చూడకపోతే, పై వీడియో చూడటానికి సెకను సమయం పడుతుంది. కనీసం ఇది నిజమైన దృగ్విషయంగా కనిపిస్తుంది, camera crews from the news station were able to record the very same effect. So what could they be?
I had an instantaneous recognition of what these UFOs were – flying insects, probably flies of some kind (డిప్టెరా) mating in the warm afternoon sun. It has been nice here in Denver and the hours around 1pm are always the warmest (strangely the same time the “UFOs” are most active). But it’s hard to tell with any degree of certainty what these objects are because of the way thatKDVR shows the clips. Odd angles, 2 second flashes, fast forward, super slow motion, super contrast… you only have fractions of a second to see the clip in real time. But when you do it seems so very obvious – and in my professional opinion – that these are insects.
Unfortunately they now have a quote from a Denver entomologist, Mary Ann Hamilton (misspelled as Mart on the KDVR website), saying these are not insects. Facepalm. I don’t know Mary and I certainly can’t blame her for being uncertain as to what these are after staring at the footage over and over and over again. In my opinion it was too hasty to rule out insects. Especially because once you enhance… enhance… మరియు ENHANCEthe footage you being to lose all track of reality. The camera footage has recordedveryout of focus insects, and the very nature of optics means you have lost most of the information outside of the depth of field. And so enlarging and slowing down these images only makes this problem infinitely worse. The pixels become too large to render any meaningful information and an effect known aspareidoliastarts to kick in. Our brains start jumbling together often meaningless data into something recognizable. This is why people see a face on Mars, or rocket boosters coming out of the butts of these insects flying over Denver. And I don’t blame Mary for looking at some of these shiny objects whipping around in weird directions and not seeing insects. But perhaps KDVR could have requested an interview with someone at the Denver Museum (which they did not) – they would have been given an entomologist with much more field experience. I can’t say Mary is unqualified and I don’t mean any disrespect to her, but I don’t believe running a butterfly house is the same thing as being an active research entomologist.
This video is pretty excellent for explaining insect UFOs – although these are much larger insects than the ones captured above Denver.
And check out this cool video of a Syrphidae fly hovering in the sun – imagine these out of focus and hurtling around in front of the camera…
That summer sure flew by, and I have to admit that being unemployed really, నిజంగాturned my productivity into crap. But the good news is that I’ve just relocated to Denver for a job in entomology at theడెన్వర్ ప్రకృతి మ్యూజియం మరియు సైన్స్! I’ll be working on databasing and photographing insects for the Southwest Collections of Arthropods Network (SCAN). It’s wonderful to be back to work and I’m feeling a lot more blogging coming on… not to mention this is one of the most amazing ecoregions in the United States. I am already plotting lots of ways to take advantage of these mountains in the spring.
So why not take a brief tour of my new office through the looking glass of creationist wackos. It’s nice to remind myself why I love talking about science.
A Monday moth in fuzzy pink – సహా (Saturniidae). These rosy maple moths are pretty common in southern Illinois, but always a stunner when they come to light.
Not an uncommon moth, but a distinguished looking one. This isCatocala ilia (Erebidae) ((formerly Noctuidae)), and it feeds on a handful of Oaks. It came into my light over the weekend in Southern Illinois, down in the Trail of Tears State Forest. As with so many other moths this widespread species has a number of variations which may turn out to be distinct – pending a monograph of the species…
I’ve now banked a handful of nice moth images so expect more Monday moths! (even though this is a Friday moth).
తూర్పు సంయుక్త మరియు కెనడా యొక్క అత్యంత స్థానిక వార్తలు aflutter ఉంది (ఉంది) recently with reports of the irruption ofరెడ్ అడ్మిరల్ – రెడ్ అడ్మిరల్ సీతాకోకచిలుక. ఈ ఒక సాధారణ సంఘటనగా ఈ సీతాకోకచిలుకలు దక్షిణ సంయుక్త లో వారి overwintering మైదానం నుండి ఉత్తర వెళ్లడంలో ప్రతి వసంత కాగా, the sheer numbers this year are staggering. There are quite literally thousands of admirals in our back yards.
So what’s different this year?
There is much speculation about the warm spring weather (warmest March on record for many places) and often lots of misinformation to go along with some armchair entomology. Most of the news sources I’ve come across say the warm spring has allowed these butterflies to flourish and reproduce in abnormal numbers. That isn’t quite possible however, V. atalantaoverwinters as anadult. The southern states provide temps just warm enough for adultVanessabutterflies to hide in the fall and be the very first to awaken in the spring to get a jump start on mating. Even if the butterflies were awake in February the host plants were not yet up (thistles); the butterflies in our backyards are from last year.
But what if weather did play a role in this boom cycle? Last year was a La Niña year with our beautiful and mild winter. The year before was an El Niño, most of the eastern US was assaulted with winter and we suffered at the hands of the epic Chicago “snowpocalypse”. Perhaps this combination depressed population numbers sufficiently in 2010/2011 which then decreased parasitoid load, allowing for greater overall butterfly fecundity in the summer of 2011. Those overwintering butterflies were then granted a warm winter that could have allowed for a lower winter mortality. As the butterflies moved north this spring there were no frosty nights to cut into populations – just lots of hungry birds. The result would be an abnormal influx of migrating butterflies.
నేటి మాత్ ఒక పేలవమైన గోధుమ Crambidae ఉంది, Loxostege brunneitincta. ఈ ఒక ముఖ్యంగా ఆకర్షణీయమైన మాత్ కాదు అది శాస్త్రీయ సేకరణలు మరియు మ్యూజియం రుణాలు అవసరాన్ని వివరిస్తుంది ఒక ఆసక్తికరమైన కథ లేదు. మీరు లేబుల్ చిత్రం చదివితే మీరు మాత్ మొదట సేకరించిన గమనించే 1927 ద్వారా ఇ. పి. Duzee నుండి Truckee లో, CA. వాన్ Duzee ప్రఖ్యాత Hemipterist అండ్ సైన్సెస్ కాలిఫోర్నియా అకాడమీ సంరక్షణాధికారి కోసం ఉంది 24 తన మరణం వరకు సంవత్సరాల 1940. దోషాలు అతని సేకరణలు (సాహిత్యపరమైన ఉద్దేశ్యంలో) ఒంటరిగా చేశాడు 164,442 నమూనాలను, మరియు అనేక ఎంటమోలజిస్టులు వంటి వాన్ Duzee అతను అంతటా వచ్చింది ప్రతిదీ సేకరించిన మరియు అవకాశం మరొక జత 100,000 అతను కూడా అధ్యయనం కాదు సమూహాల మ్యూజియం నమూనాలను.
కాబట్టి ఈ చిన్న గోధుమ మాత్ 1970 యొక్క చేసినప్పుడు వరకు CAS కొనసాగారు యూజీన్ మన్రో ప్రజాతి తన పని కోసం అరువు నమూనాలను Loxostege. ఫలితంగా 1976 గుచ్ఛము శాస్త్రానికి కొత్త ఈ జాతులు వివరించబడ్డాయి కూడా పుస్తకంలో ఉదాహరణ ఈ నమూనాను ఉపయోగిస్తారు. మీరు పదం Paratype తెలిసి ఉంటే అది సిరీస్ నుండి ఒక నమూనా వార్తలు (holotype మినహాయించి) ఆ జాతులను వర్ణించింది ఉపయోగించారు. కాగా ఈ ప్రత్యేక మాత్ సమృద్ధిగా అనిపించడం లేదు, ప్రజాతి దక్షిణ దుంప మరియు alfalfa వంటి కొన్ని కొన్ని సంచలనాత్మక తెగుళ్లు కలిగి లేదు webworms. మరిన్ని తరచుగా తమను బాగా పిలుస్తారు పెంపుడు జంతువులు కానీ కులము వారు సమస్యాత్మక కావచ్చు చెందిన కానప్పటికీ. కానీ వాన్ Duzee భాగంగా కృతజ్ఞతలు మరియు అతనిని వంటి అనేక ఎంటమోలజిస్టులు, మన్రో దశాబ్దాల చేసుండేవాడు ఆ నమూనాలను సేకరణ సమీకరించటానికి చేయగలిగింది (ఉంటే ఇక) సేకరించడానికి. మరియు మాత్రమే ఒక తగినంత సేకరణ తో సాధ్యం జాతులు సమగ్రమైన అంచనా ఉంది.
ఒక చురుకైన న 37 ఉత్తర ఇల్లినాయిస్‌లో డిగ్రీ ఉదయం నా కెమెరాను దుమ్ము దులిపి, పురోగతిని అన్వేషించాలని నిర్ణయించుకున్నాను “వసంత”. I hitRollins Savanna Forest Preserveద్వారా 6:30మీద, మొదటి కాంతి అతుకుల మంచును కరిగించే సమయానికి. A week and a half ago temps were pushing the upper 80’s and summer felt in full swing. In typical Chicago fashion things didn’t last long, the weather returned to its fickle spring form with storms and (what now seemed like) bitter cold.
Despite a 3 hour hike I only came across one butterfly – a red admiral, రెడ్ అడ్మిరల్, and about a half-dozen dog ticks (Dermacentor sp.). Beggars can’t be choosers, there was hardly a single insect out. I might as well take photos of birds…
The very first and most abundant birds were the Tree Swallow, Tachycineta bicolor. These two were just greeting the dawn and stretching out their little legs. They seemed to be rather patient subjects, a good first-bird-to-ever-photograph!
A prairie isn’t complete without a chorus of Redwinged-Blackbirds.
Despite my best efforts this is one of the better Sandhill Crane images I could get. If you click through my Flickr set you’ll find one more, but sneaking up on them in the marsh was rather difficult. I don’t get birds yet…
This Coyote let me get pretty close, looks like they are fed well in suburbia.
Back to the Monday Moth! This beautiful insect isStiria dyari (నోక్తుయిదే) collected on a February trip outside of Cataviña, Baja California Mexico. I believe the host plants are still unknown, but all of the moths in the genusStiriahave these brilliant yellow forewings that help camouflage them on the stem of a yellow flowered plant. ఉన్నాయి 7 currently described species most of which are found in the SW United States and northern Mexico, కాని Stiria rugifronsmakes it into the great plains. All of the species have poorly defined and often overlapping ranges, not to mention the genitalia can highly variable. It’s very likely the final word has not been written about these beautiful noctuids quite yet.
విరామం నుండి తిరిగి మరియు ప్రెస్ ఇన్‌సెక్ట్-న్యూస్-ఫెయిల్యూర్ సిరీస్ యొక్క జీనియస్‌కు తిరిగి వెళ్లండి! గత సంవత్సరం నుండి ప్రెస్‌ల నుండి తాజాగా, పర్యావరణ శాఖ, UKలోని ఆహార మరియు గ్రామీణ వ్యవహారాలు బట్టల మాత్‌ల యొక్క భారీ ముట్టడి కారణంగా మూసివేయబడ్డాయి. నుండి ఇక్కడ చూపిన చిత్రం “ఒక దేశం” story is a far cry from a proper clothes moth (Tineidae) – looks like a Noctuidae of some kind.
But it’s hard to blame them for getting this moth wrong when UK pest control companies don’t even know what a clothes moth is. ఇక్కడ Instakil’s versionof “the moth” that happens to be a Plusiinae noctuid.
And the winner for failed identification goes to this other UK company “Hawk Force“. Not even a moth – but a skipper butterfly!
