So now that National Moth Week is in full swing and you’ve been checking your porch lights at night and flower beds throughout the day, you’re probably looking for some way to identify all the great new additions to your natural history lists.
There are a variety of guides, keys and other identification resources out there for Lepidoptera, and while I’ll be the first to admit that I haven’t taken much time to look through them, these are the ones I turn to first when I absolutely need to identify a “lep”.
Butterflies & Skippers
Butterflies are what my friends and I like to call “honourary birds” because there are so many people out looking for them, and there are a large number of field guides produced to help with their identification. My personal choice is the National Audubon Society Field Guide to North American Butterflies, which has fairly good live photos and detailed life history information. If I were to nitpick, I’d wish for actual range maps rather than range descriptions, and more photos of the butterflies would be nice (especially for those species which are only illustrated with one photo — a couple of times I’ve not been able to ID my photos because the representative photo had its wings closed while my photo had its wings open or vice versa).
I recently downloaded the digital app version of this field guide for my iPhone, and absolutely loved it! The Audubon Society has added plenty of new photos and still included all of the natural history information from the print edition (although still no maps…). Being in a digital format means that searching for species is a breeze, and they’ve added some social media connectivity, allowing you to share your finds from the field to Facebook. They also offer personal accounts so you can keep lists of your sightings which work across all of their field guide apps (I also have their North American Insects, Birds, Mammals, Flowers and Trees apps on my phone). I love having all this natural history information literally in my pocket and available whenever and wherever I may be!
Normally $10 (which is cheap compared to the print version at $15-25) the app is available for both Apple and Android devices. Even better, the team at Audubon has dropped the price for the app to just $0.99 until Sunday July 29th in honour of National Moth Week! Definitely a great deal and well worth a Loonie (or dollar bill).
Moths
Until recently I never really had a good guide to moths that I could reliably get IDs from. Normally I’d have to figure out what family they belonged to, and then start searching through BugGuide to find a photo of something that looked about right. Needless to say, that took a long damn time and resulted in me not paying much attention to moths beyond a casual ID of big species.
All that’s changed now that I’ve got a copy of David Beadle & Seabrooke Leckie‘s Peterson Field Guide to Moths of Northeastern North America. This field guide is fantastic, and a great addition to both the Peterson field guide family and my collection. The book seems nearly comprehensive for the area (there are a few noticeable things not included, like the wingless female Fall Cankerworm I showcased the other day – the winged male is included though), apparently including nearly 1,500 species, ranging from tiny micro-moths to big eye-catching species, and the photos are excellent for helping with identifications. Its taken me a little bit of time to learn the different groups and body forms of moths that are used to group similar things together, but the authors included a really useful silhouette guide at the back of the book to help n00bs like myself (one nit pick: I wish they had included page numbers under the silhouettes directing you to the start of the appropriate section). Every page also includes a life-sized shadow for a moth on the page, with the remaining images on the page displayed to scale appropriately. Because the guide includes so many species it can be tough finding the correct group to start with, but there’s only been a couple of species that I’ve been stumped by so far. At 610 pages it’s not a small guide, and there is very limited natural history information included, with the authors choosing to include bigger photos over other information (which is fine with me). Plus they have graphical range maps and flight periods, and indicate how common or rare each species is which I really like.
I can definitely see myself picking up a 2nd copy to leave up at the cottage, and I can see myself paying a little more attention to moths from now on now that I’m confident I can identify them!
Technical Keys
Of course if you can’t seem to identify a moth or butterfly, you can always turn to a technical key like Jason Dombroskie’s CJAI matrix key to the Lepidoptera of Canada (I wrote up my thoughts on it previously). It’s certainly not for beginners, and usually requires a dead, preserved specimen and observation under a microscope or magnifying loupe, but if all else fails, it is as good a resource as any. Do you have a favourite guide to identify moths and butterflies? Feel free to leave your suggestions below in the comments, I’m always looking to expand my collection!
This may be one of my new favourite Ontario moths; I find the colour and pattern of the wings to be quite striking. It also has one of the more literal common names, as the larvae role up leaves of a diversity of trees, including basswoods (Tilia). Although called a leafroller, this moth belongs in the family Crambidae, not the Tortricidae where most other leafrollers are found.
Tussock Moth (?) – Bella Vista Cloud Forest Reserve, Ecuador
Another day in the jungle, another moth I can’t identify. I’m less confident that this is a true tussock moth (Erebidae, Lymantriinae), but it does have the posture and the somewhat fluffy legs. No matter what it is, it was a jewel to find while in the cloud forests of Ecuador.
As a bonus, I even managed to snag a little nematoceran fly in the photo!
Fall Cankerworm – Alsophila pometaria – Geometridae – Guelph, Ontario
Not all moths have showy wings, or even wings to begin with! The Fall Cankerworm (Alsophila pometaria) is a moderate pest in the landscaping industry as the larvae skeletonize leaves of several different trees and as you can see here the females are completely wingless. Females emerge from the leaf litter in the fall and climb up trees and other vertical objects to attract mates (males are winged). As the name suggests, adults are only active in the fall.
The cryptic colouration of this sphinx moth likely protects it from bird predation during the day while it’s resting among the jungle foliage. Much as camo clothing won’t keep a person hidden in the middle of a parking lot, this cryptic colouration did diddly squat when an undergraduate student decided to release the moth off a second storey balcony in mid-afternoon while surrounded by Amazonian jungle! The ill-fated moth didn’t make it 20 feet before it was picked out of the air by a lucky fly catcher and dismantled in a poof of scales.
At least the students learned a little lesson on how not to release insects…
I may be nearly useless with moth identification, but this is one I know by heart. Of course, this isn’t really brag worthy since there aren’t many moths with an iridescent blue thorax and yellow head, but I’m working on baby steps here.
Just because I can identify it doesn’t mean I can place it in the correct family however! When I was an undergrad (back in the day when I had to walk 10 miles uphill both ways, etc) I was taught the tiger moths were a family unto themselves. Since then however, they’ve been sunk into the family Erebidae, causing me much confusion.
The Virginia Ctenucha feeds on a variety of grasses and sedges as a caterpillar, and adults are active from late spring to mid summer.
What feeds on Virginia Ctenucha though? Compsilura concinnata, a tachinid fly that was introduced to North America to combat Gypsy moth (Lymantria dispar) in the late 19th and early 20th century. As is wont to happen with poorly understood ecology and introductions, Compsilura concinnata turned out to be a broad generalist, and is right at home within a wide diversity of caterpillar hosts. There’s concern that this “new” parasitoid is a contributing factor to declining saturniid moth populations in eastern North America, but the fly appears to be under heavy pressure from a hyper-parasitoid species of trigonalid wasp, which appears to be keeping fly populations low enough to prevent eradication of native moths.
——— Kellogg, S.K., Fink, L.S. & Brower, L.P. (2003). Parasitism of Native Luna Moths, (L.) (Lepidoptera: Saturniidae) by the Introduced (Meigen) (Diptera: Tachinidae) in Central Virginia, and Their Hyperparasitism by Trigonalid Wasps (Hymenoptera: Trigonalidae), Environmental Entomology, 32 (5) 1027. DOI: 10.1603/0046-225X-32.5.1019
It’s been quite awhile since the last Tuesday Tunes, but I think it’s time I resurrect it for a bit, and I have the perfect song for (Inter)National Moth Week — Moth by Audioslave.
And as a special bonus, here’s a little taxonomic refresher that A Moth Is Not A Butterfly from Hawksley Workman.
Exciting news since the last Weekly Flypaper: Piotr Naskrecki, orthopteroid taxonomist, photographer, and author (Relics and The Smaller Majority) has started a new blog — The Smaller Majority. So far Piotr has been killing this whole blogging business, with fascinating posts on tropical entomology and macrophotography tips. I’m pretty sure I bookmarked every post he made for future reference, but here are a few of my favourites:
Apparently I missed the memo about Photo Bombing blogs, as Matt Bergeron, Dave Stone and Alex Wild all showed off gorgeous photos of bombyliid bee flies.
Emerald Ash Borer (Agrilus planipennis) has continued it’s inevitable march across eastern North America, this week being detected in Connecticut for the first time. What’s important about this is that Cerceris fumipennis, a solitary wasp which specializes on buprestid jewel beetles, was the first to detect it’s presence in the state. This is the sort of Bio-surveillance that Phil Careless and the rest of Team Cerceris had hoped for, and now hopefully more government agencies will invest in expanding this simple monitoring tool.
I’ve seen a bunch of people start blogs only to watch them peter out after a few weeks/months. As a blogger who has a relatively small (yet loyal) readership, I can sympathize with this post on Why Blogs Fail.
Carl Zimmer was a plenary speaker at the annual meeting of the Society for the Presevation of Natural History Collections a few weeks ago, and they just posted his talk on YouTube. It’s long (more than an hour), but it’s an interesting talk and well delivered.
Evolutionary biologists from around the world have converged on Ottawa this weekend to partake in the First Joint Congress on Evolutionary Biology. Luckily for those of us who couldn’t make it, there are a ton of people tweeting about talks, the conference and evolution in general. I’ve been watching the #evol2012 hashtag all morning while writing this, and although I’m even more jealous of those that are attending the conference in person, I’m glad I can enjoy a slice of the conference through the tweets of others!
1- Not sure whether I’ve explicitly mentioned this here on the blog, but I’m starting my PhD at the University of Guelph in September! Lots of work to finish up before then, but I’m really excited to become a student again. 🙂
While working on my MSc in Ottawa back in 2008, my wife-to-be and I decided it would be appropriate to celebrate Canada Day on Parliament Hill with thousands of our fellow Canadians1. After spending a beautiful day taking in our country’s history with a full range of festivities including the RCMP Musical Ride, a stellar concert series that ran all afternoon, and speeches by politicians and other notable Canadians, we settled on the main lawn in front of the Peace Tower for an evening concert series and some killer fireworks.Continue reading »
Butterflies are what my friends and I like to call “honourary birds” because there are so many people out looking for them, and there are a large number of field guides produced to help with their identification. My personal choice is the National Audubon Society Field Guide to North American Butterflies, which has fairly good live photos and detailed life history information. If I were to nitpick, I’d wish for actual range maps rather than range descriptions, and more photos of the butterflies would be nice (especially for those species which are only illustrated with one photo — a couple of times I’ve not been able to ID my photos because the representative photo had its wings closed while my photo had its wings open or vice versa).
Until recently I never really had a good guide to moths that I could reliably get IDs from. Normally I’d have to figure out what family they belonged to, and then start searching through BugGuide to find a photo of something that looked about right. Needless to say, that took a long damn time and resulted in me not paying much attention to moths beyond a casual ID of big species.
