Enchoria lacteata

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Enchoria lacteata

Enchoria lacteata (Packard) is a relatively small moth with forewings measuring only 0.9-1.1 cm in length.    Adults have a remarkable zig-zag pattern on forewings made up of various shades of brown and buff.  They are diurnal (daytime) fliers and emerge from late February to May.  Sightings are often in grassy areas or edges of moist woodlands.  Larval host plants are various species of miner’s lettuce, Claytonia (Portulacaceae).  Check out the following link for more information on miner’s lettuce.  It’s edible! https://www.ediblewildfood.com/miners-lettuce.aspx

Enchoria lacteata

Enchoria lacteata crawling onto my pruning tool.

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Enchoria lacteata between my work glove and pruning tool

 

References:

POWELL, JERRY A., and PAUL A. OPLER. Moths of Western North America. 1st ed., University of California Press, 2009.

https://bugguide.net/node/view/46115

http://mothphotographersgroup.msstate.edu/species.php?hodges=7403

 

Scanning Electron Images of a Cerambycid Beetle

Yesterday I had the extreme good fortune to be able to use the scanning electron microscope (SEM) at University of Washington’s Friday Harbor Labs (San Juan Island).  We put a Cerambycid beetle under the SEM and “WOW,” the photos were phenomenal!  Here’s a few for you to see.  Below is a photo of the beetle’s compound eye.  Just think of all the information each of those facets receives and processes.

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Cerambycid beetle compound eye, imaged under scanning electron microscope at Friday Harbor Labs, San Juan Island, WA

Next, you see an image of the beetle head.  It shows the antennal insertion points, the compound eyes, frons, clypeus, labrum, mandibles, and bristly setae.

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SEM anterior, dorsal view of cerambycid head.

If you’re interested in learning more about the morphological features, here’s a pretty good diagram below for reference.

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image from http://www.faculty.ucr.edu/~legneref/biotact/bc-51b.htm

The last image for you is of the beetle’s tarsi (the foot).  This is an important identification feature for many insects.  Imagine that!  When I was working on my masters degree from the University of Florida, I had an amazing taxonomy professor who was an expert on Coleoptera (the beetles).   He created identification keys for Florida beetles and you can take a look at them here:  http://www.entnemdept.ufl.edu/choate/beetles.pdf IMG_7525.JPGWell, I’m looking forward to using the SEM again and my next imaging will hopefully include the sponging mouthparts of a fly.   Stay tuned!

How to get that spider out of your bathtub!

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Eek there’s a spider in the tub!

Eek! There’s a spider in the bathtub!  Do you really want to turn on the water and drown it?  Hopefully you are not nodding your head “yes,” but instead finding courage to overcome your arachnophobia and finding a tiny bit of compassion.  Just take a deep breath.  Get a towel, or a cup and a card, and find your brave inner self to save this poor little eight-legged individual to live out its life.   Say this mantra with me….”Be NICE to spiders!”  Then say it over and over and over to yourself.  It will make you a much more confident person. You can tell your friends and co-workers about how YOU got a spider out of the BATHTUB!

At my house, the number one threat to spiders is my cat.  Millhouse is determined his job is to be spider exterminator.  He squashes them.  He used to eat them!  Once he ate one.  He fainted.  I had to rush him to the vet.  He revived on the way.  The next time, he bit one and spit it out.  I don’t know if the spider was foaming from being punctured or if the cat was foaming because well….maybe cats foam at the mouth sometimes when they eat something they shouldn’t.  In any case, he’s evolving his kill techniques.  Now he eats too much cat food and uses his massive body weight (he thinks it’s muscle) to flatten them.

I’m on the other side.  My job is to save them. It was a good thing I saw this one before Millhouse did.  You see, Millhouse loves to drink his water out of the bathtub.  I have to leave the water dripping for him.  That’s why you’ll note the stain on the tub.  It’s from hard well water.  One day I will scrub off the yellowing, but for now, pretend it’s not there.

The first thing I recommend to get the spider out is to grab something like a hand towel or a plastic cup and some sort of paper (mailer, index card, envelop, etc.).  I used a towel.  Watch my video and see how easy it is!  The spider isn’t going to bite you.  It just wants OUT of the tub.  Probably it was thirsty.  See my post from October 27, and you can read all about how to give a dehydrated spider a drink.  At this point, it needs your help.  It is stuck.  The sides of the tub are too slippery for it to crawl out.    It’s really easy!  Here goes…

The general idea is to be extremely gentle.  You don’t want to injure the spider.  Keep chanting your mantra…”Be nice to spiders!”  Over and over and over!

Hackelmesh Weaver Callobius.severus

Safe!

See!  It’s not that hard.  The spider didn’t attack me.  Isn’t it so cute! By the way, this spider is a Callobius severus.  I checked later today and it has crawled off somewhere.  Happy to escape the cat!

The lone wolf at my door! Tarentula kochii a.k.a. Alopecosa kochii

Here’s a clip of my little Wolf Spider, Tarentula kochii a.k.a. Alopecosa kochii (ID credit to  Rod Crawford at Seattle’s Burke Museum). He ever-so-kindly responded to my email query for help.  According to Rod, this spider is “a local native wolf spider and somewhat uncommon and rare.”   I found it in the doorway two days ago (10-23-18) and worried the cat injured it, but as you can see, it is moving a little. After examining it carefully, it looks uninjured, but possibly suffering from another spider bite…recent molt…or dehydration.   I attempted to get it to drink some water using a tiny syringe but was unsuccessful…or perhaps too late.  I also got some great advice on the correct way to give spiders a drink of water from Rod, who says:  “For future reference, the way to give a spider a drink is to rest the mouth area (under the front of the “head”) directly in a drop of water.”

 

If you are interested in learning more about this species of Wolf Spider, here are some links to check out:

https://bugguide.net/node/view/1490575

http://publications.gc.ca/collections/collection_2016/aac-aafc/agrhist/A42-42-1990-17-eng.pdf

 

 

 

Revenge of the Mantids

clip mantis Check out my story about praying mantids on San Juan Island!  They’ve been a victim of hyper-sensationalism.  Seriously.  Read my article before you squish one.

https://sanjuanislander.com/news-articles/environment-science-whales/environment/28146/revenge-of-the-mantids

Merlin.mantid

Let me know if you have questions about these or other insects you come across!  I’m always interested and do my best to answer emails.  Thanks!

 

Lophocampa roseata (Rosy aemilia)

I spent a good part of the day combing through my insect photos from the past 9 years. There are thousands. Finally, I found the ones I was searching for. I credit Victoria Compton on San Juan Island, WA  for helping me out on this one. She sent a photo the other day to my email with a caterpillar and had suggested an ID. Not only was she correct, but in ID’ing the caterpillar, it enabled me to match up one of my adult moth photos that had been sitting around nameless since 2016. The photos I found today were of the same caterpillar that had been a mystery to me since 2013. It’s a nice “aha” moment when you connect the dots! Below are the pics for you to see.

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Lophocampa roseata Photographed July 10, 2016 San Juan Island, WA

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Lophocampa roseata larva Photographed October 6, 2013 San Juan Island, WA

This is a Tiger moth in the family Erebidae, subfamily Arctiinae. The scientific name is Lophocampa roseata (also known as the Rosy aemilia). It was first described by Francis Walker in 1868.  They are found in Western Oregon and Washington as well as in Southwestern B.C. and are associated with habitats of conifer forests and maple trees. The sources I checked list them as somewhat rare and Natureserve lists them as “critically imperiled.” So, I guess we have another beautiful Lepidoptera on San Juan Island to care for along with the Marble Butterfly!

***Critically imperiled Tiger Moth. Please post/email photos if you live in San Juan County, WA and come across one in the adult or larval stage.  Thanks! 

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Lophocampa roseata larva Photographed October 6, 2013 by Cynthia Brast San Juan Island, WA

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Lophocampa roseata larva Photographed September 26, 2018by Victoria Compton San Juan Island, WA 

Helpful links:

 

http://explorer.natureserve.org/servlet/NatureServe?searchName=Lophocampa+roseata

https://www.inaturalist.org/taxa/224121-Lophocampa-roseata

https://www.butterfliesandmoths.org/species/Lophocampa-roseata

https://bugguide.net/node/view/247272

 

 

Western Horse Fly (Tabanus punctifer)

Found this specimen in the parking lot at Marketplace in Friday Harbor yesterday. Glad I didn’t turn into the “grabber” I can sometimes be and instead used a box to scoop up my big find. Probably if you were watching me, you’d have been scratching your head wondering WHY is this woman going through her grocery sacks and opening a snack box of tuna?  That box made an excellent fly “trap!”

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Big is an understatement! This is the LARGEST fly I’ve collected on the island.  It measures over 1 inch long or more than 2 cm.  The Western Horse Fly (Tabanus punctifer) can bite through your clothing, although it is the female that needs a blood meal (males feed on nectar and pollen). The adult female lays egg masses (over 300 per mass) on vegetation along ponds and lakes. When the eggs hatch, the larvae develop in the water and here is what I read about them from my sources at Bugguide.com…

“These larvae are aquatic. They have mouthparts that are identical to those of rattlesnakes in structure. A pair of hollow fangs that are connected to a poison/anaesthecic salivary gland further back in the body. These mandibles can easily break through human skin and inject the immobilizing contents of the salivary glands. Normally used to paralyse, and perhaps digest, prey. They are capable of quickly immobilizing/killing animals as large as frogs. They are strictly carnivores and eat ‘meat’.”

I guess this means that the toe-biters aren’t the only ones you should avoid when you go for that swim!

If you care to read more, I suggest this excellent informative guide I found online.   It is a 1921 publication from Sanitary Entomology:  The Entomology of Disease, Hygiene and Sanitation ~ https://play.google.com/books/reader?id=eIQoAAAAYAAJ&printsec=frontcover&pg=GBS.PA237Sanitary Entomology

 

 

All Wet! April 26, 2018

A water trough and cool morning temperatures equate with a desperate situation if your wings are wet and they aren’t the inflatable kind that keep you afloat.  I rescued two, soon to be drowned, little specimens yesterday morning and can tell you, they were “happy” to  dry off in the sunshine ☀️ .

The first rescue was a delicate, Green Lacewing in the family Chrysopidae.   Lacewings are in the insect order Neuroptera which means nerve-winged insect.  It is named for the intricate, sheer, net-like pattern of its wings.  They are valued because they prey on garden and orchard pests insects like aphids.  The intriguing thing about this specimen (make sure to pay close attention to frames 0.22 and 0.24 in the video) was its reaction to my voice when I stopped Millhouse the cat from interfering with my cinematography.  The Lacewing appears to have a look of surprise when it hears me.

The second rescue from the water trough is the beautiful, iridescent green cuckoo bee you see in the video below.  Cuckoo bees are actually wasps in the insect order Hymenoptera, and family Chrysididae.  While they are pollinators in that adults seek out nectar for food from flowers, they are named, like the cuckoo bird, after their habit of seeking out nests of other wasp and bee species to steal food, or the life of developing larvae as a host for their own young.   Never-mind that part of the life cycle of this bee.  It is truly a gem, glittering in the sunshine…a jewel worn by a new spring blossom in the garden.

 

 

 

Western Conifer Seed Bug (Leptoglossus occidentalis)

I’ve been stuck in the house all week with the flu…a BAD case of the flu. You don’t want it! Trust me. So, what does the very bored, sniffling, coughing entomologist do to pass the time when she’s sick? Why play with bugs of course!

My honey brought me this from the back deck…(such a thoughtful man!). fullsizeoutput_184b.jpeg

I wonder if he knew that had he not been more careful, our house could have been filled with “le pew de le bug,” a very unpleasant odor! While I probably wouldn’t have suffered (since I’m all stopped up), he certainly would have noticed.

So, what is this bug? Well, it’s not a “bug,” it’s an INSECT. You know….6 legs, chitinous exoskeleton, antennae, three main body parts (head, thorax, and abdomen).  More specifically, THIS INSECT is a Western Conifer Seed Bug (Leptoglossus occidentalis).  It is classified in the order Hemiptera, family Coreidae (Leaf-footed Bugs and Squash Bugs).

No….please don’t take that literally.  I’m certain this fella (or femme) would not like to be “squashed!”  I don’t advocate squashing any insect.  They’re ALL interesting…in one way or another.

The Coreidae or Squash Bugs are medium to large in size.  They are usually brownish colored.  This one has what I would describe as the beautiful color, Bronze! Please also note the leaf-like hind tibia, a feature characteristic of some species in this particular family. img_1869-2

What does it eat? It feeds on vegetation.  Check out the very long, piercing Rostrum or Proboscis tucked carefully along the underside of this one’s body.  western-conifer-seed-bug-leptoglossus-occidentalis

The Rostrum is used like a straw to suck the juices from conifers including Douglas Fir (Pseudotsuga menziesii) and Lodgepole Pine (Pinus contorta).  Other species are vegetable pests.  Hence the “Squash Bug” moniker.  It also has the characteristic SCENT GLANDS that will secrete the particularly stinky odor if you poke it too much when you are trying to get it to pose for a picture!  “Le pew de le bug!”

 

The Fainting Bug! Enoclerus sphegeus

IMG_0997I like beetles. There are interesting ones all over the place…and they do REALLY interesting things. Some can cry like babies. Some like to pat poo into nice little balls and roll them back to their home. Some hang around to take care of their offspring and even “play music” to call them to breakfast…or lunch…or dinner! Some do “bad” things like eat your plants …or your trees…or your house! Some wear really cool suits of shiny armor. They can look like miniature versions of dinosaurs or imaginary space aliens! Some have really cool names…like this one I found the other day…with many friends…hanging out on a dead fir tree. Its name? The FAINTING beetle! That’s exactly what it did when I walked up….fainted right over onto the ground! Stayed that way too…for about 30 seconds with its bright red (aposmatically colored) abdomen warning me it would taste VERY bad if I decided to eat it. No worries there little bug. I was only going to take your photo. Now the scientific name of this fella (or maybe it was a “she”) is Enoclerus sphegeus. It eats the bark beetles that eat fir and pine trees. Check out the photos and next time you see a beetle, take a moment to “admire and inquire” before you automatically stomp it! Not all bugs are bad.

Interested to know more.  Check out some of these references for further reading:

Boone, C., Six, D., and K. Raffa. 2008. The enemy of my enemy is still my enemy: competitors add to predator load of a tree-killing bark beetle. Agricultural and Forest Entomology, 10(4), 411-421.

http://onlinelibrary.wiley.com/doi/10.1111/j.1461-9563.2008.00402.x/full

Cowan, B., and W.P. Nagel. 1965. Predators of the Douglas Fir Beetle in Western Oregon.  Agricultural Experiment Station, Oregon State University, Corvallis, OR. Technical Bulletiin 86 http://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/8806/?sequence=1

Rasmussen, L. 1976.  Keys to Common Parasites and Predators of the Mountain Pine Beetle. USDA Forest Service Intermountain Forest and Range Experiment Station. Ogden, UT. General Technical Report INT-29

http://www.usu.edu/beetle/documents2/1976Rasmussen_Key%20to%20Common%20Parasites.pdf

Fainting Bug, Enoclerus sphegeus IMG_0990Enoclerus sphegeus, the Fainting Bug IMG_0992Enoclerus sphegeus, the Fainting Bug IMG_0994 IMG_0997 IMG_0999 IMG_1000 IMG_1001

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