Monthly Archives October 2009

Lawn Shrimp

Thousands invading after rain
October 15, 2009
We wonder what these are and where they are coming from (most likely). After rains this past 2 years they come in under the door by the hundreds and die on the floor. The backyard patio of covered with their dead bodies.
Creeped Out
Ventura, California, USA

lawn shrimp 300x215 Lawn Shrimp

Lawn Shrimp

Dear Creeped Out,
This is a terrestrial amphipod known as a Lawn Shrimp or House Hopper.  The behavior you describe is very characteristic.  This species lives in ground covers like ivy, and after a heavy rain, thousands of individuals will seek shelter indoors to die shortly afterward.

What's That Bug? does not endorse extermination

Red Headed Meadow Katydid

Purple headed grass hopper or katydid
October 15, 2009
Found this fella hiding out in a toy dump truck. Could you please help me identify it? We live in Foley Alabama about 7 miles from the Gulf of Mexico.
South Alabama bug guy
South Alabama, 7 miles from the beach.

red head katydid  300x235 Red Headed Meadow Katydid

Red Headed Meadow Katydid

Dear South Alabama bug guy,
Your description nearly nailed it.  This is a Red Headed Meadow Katydid,
Orchelimum erythrocephalum, a species found in the southeastern states.  You can get additional information on BugGuide.

Male California Trapdoor Spider in Mount Washington

Hey Daniel;
Came by with a specimen that came waltzing into my studio.  It graciously allowed me to catch it, although I don’t know how much air it will need…it’s in a Tupperware container on your porch…
WHAT’S THAT SPIDER?!?!?
icon confused Male California Trapdoor Spider in Mount Washington

california trapdoor spider 20091015 300x298 Male California Trapdoor Spider in Mount Washington

California Trapdoor Spider

Last night, we arrived home from work to find a food container on the front porch with this gorgeous male California Trapdoor Spider, Bothriocyrtum californicum, inside.  Seems our Mount Washington neighbor had him wander into her backyard studio which we learned upon checking our email.  The unseasonal October rains have triggered the mating instinct of the male California Trapdoor Spiders and is causing them to wander about in search of mates.  After posing for this photo this morning, we are releasing this randy guy in a vacant lot around the corner.

What's That Bug? does not endorse extermination

California Trapdoor Spider: Male Spiders emerge with the rain

2 inch black spider with brown abdomen
October 15, 2009
This spider crawled over my wife’s foot. It’s about 2 inches long, shiny black with a brown slightly furry abdomen. It’s mid October here in LA and we just had a rather large rainstorm, the first of the season, possibly it tried to escape into the house? We let him go right after we took the picture.
Syd
Los Angeles California

trapdoor syd 300x240 California Trapdoor Spider:  Male Spiders emerge with the rain

Male California Trapdoor Spider

Hi Syd,
This is a male California Trapdoor Spider, Bothriocyrtum californicum
.  Each year, the first rains of the season trigger the mating instinct of the male California Trapdoor Spider who leaves his burrow and wanders in search of a mate.  This species is sexually dimorphic.  Sadly, the male spiders often wander into backyard swimming pools and drown.  Interestingly, our Mount Washington Los Angeles neighbor Jeanie left a tupperware on our porch last night.  There is a male California Trapdoor Spider in that tupperware.  We were waiting for morning light to take our own photo to create a posting.  According to Charles Hogue, in his awesome Insects of the Los Angeles Basin, “Trapdoor spiders are novelties in the Los Angeles Basin today, although they were commonplace a few years ago.  They were even collected and sold as curios in the Los Angeles area at the beginning of the twentieth century.  Their rarity now is another example of human expansion destroying the habitat of a local animal.  The spider prefers to build its nest on sunny south-facing dry hillsides, which in the spring bear a thick covering of short grasses and low herbs.  Such areas are becoming increasingly rare in the basin (they are also the habitat of our local tarantulas, and both types of spiders can be found living on the same hillsides).”

trapdor syd 2 300x275 California Trapdoor Spider:  Male Spiders emerge with the rain

Male California Trapdoor Spider

Blister Beetle

Found in Prince Edward Island, Canada
October 14, 2009
Hello! I was happy to find your site today! What a lot of wonderful and informative information!
Last summer on vacation, I snapped a nice photo of a most interesting flying insect. I still have no idea what it is. It was June and we were on Prince Edward Island, Canada.
There were many of these harmless and beautiful creatures flying among the lupines along the edge of the roads.
We enjoyed their magnificent beauty! I was so happy my not-so-great camera allowed me this beautiful shot of this fellow (or lady, as the case may be). They were about 2 inches long or so. Not tiny!
I would love to know what it is and what its habits are.
Thank you for all you’re doing!
Linda
Prince Edward Island, Canada.

blister beetle linda1 Blister Beetle

Blister Beetle

Hi Linda,
This is a Blister Beetle, probably Lytta sayi.  You can find other photos and information on BugGuide.  Also, the entire family of Blister Beetles, Meloidae, includes members that are characterized by  the following BugGuide description:  “Pressing, rubbing, or squashing adult blister beetles may cause them to exude their hemolymph (‘blood’), which contains cantharidin. This compound causes blistering of the skin, thus the name blister beetle. Accidental or intentional ingestion of these insects can be fatal. There are documented incidents of horses dying after eating hay in which blister beetles were inadvertently baled with the forage. Watch that curious children do not attempt to put these beetles in their mouths. The external use of cantharidin, commercially known as ‘Spanish fly,’ the supposed aphrodisiac, is likewise discouraged.

Aquarium Comments

That Fish Bug!
October 14, 2009
Oh, my goodness! I see you’ve been bitten by the fish bug, too! I loved the pics of your aquariums and reading your adventures raising Angelfish. It sounds like you’re learning well and are quickly finding out the addictive power of the phrase, “Just one more tank….” (haha)

A quick note on cycling: once you have _established bacteria colonies_ in your filters, you can quickly cycle new tanks in the house by squeezing some of that filter media into the new tank (before adding fish) and letting the new filter suck it all in. This colonizes your filter media and gets you jump-started so you won’t go through so much of the new cycling headache/heartache.

Also–there is far less need to change filter media than those selling you the media make you think. The important thing is the _bacteria:_ not what it’s growing on. Some rinsing in old tank water to remove detritus is usually all that’s necessary unless/until the media seems to be falling apart.

You’re like me: anxious to fill that new tank with fish! I had to smile.

Also like me–there’s a bit of a tendency to overload the tank. I counted about 34 fish listed in your 40 gallon–not counting fry. With much respect, I offer the counsel that even with live plants, that may be far too many fish…. The rule of thumb is not 1 gallon per fish, but 1 gallon per *body inch* of fish: meaning, don’t count fins, but measuring from nose to the end of the body (beginning of the caudal fin). Most of the Tetras you listed reach about 2″ in length as adults. Adult size should be considered when stocking the tank as well (or…. you can always buy another tank! or trade back in–it sounds like you have a terrific local fish store there).

Also, some fish, like plecos, goldfish, and Oscars, are considered “messy” fish due to their high waste output, and “count” as more than 1 gallon per “fish inch.” An Oscar, for example, rates as taking up 50-75 gallons of “tank space” even though they are 12″ fish.

That said, you sound on top of your game with waterchanges and testing, and fish care in general–and live plants can and do help with the fish load. Frequent waterchanges can also do the trick. But overloading does make the fishkeeping more difficult overall, in case you miss a change or a water test.

I’m raising Betta fish at my house. My first fry are entering a show this weekend, and my second set are a week old–they look a lot like the Angel fry when they begin to be freeswimming, only, much smaller.

I just wanted to share my thumbs-up.
Your tanks are beautiful, and it was fun to read through your adventures!
Linda

Thanks for your comments Linda,
WE are actually pretty careful with our tank population.  Right now, the original community aquarium has a pair of Angelfish (Boris and Media Luna) that spawn every few weeks, 6 Rams, 7 Cardinal Tetras, 5 False Emperor Tetras and 4 Black Phantom Tetras.  The grow out 40 gallon aquarium has about 60 angelfish fry, 9 rummy nose tetras, 1 platy and 1 cory cat.  Another 29 gallon aquarium has a pair of Angelfish (Lefty and Digitalis) that spawn less frequently since we let them raise their own fry for about 6 weeks.

Terrific!
I must have read further back (earlier on in the blog) or added fish up incorrectly. My apologies. I think where I was reading and adding was with the first tank during the initial cycling period or right after, possibly.
I can tell you are excellent and caring fishkeepers – and what amazing luck to buy 4 grown Angels and have 2 pair!
Enjoy! Very nice to meet you!!
I just meant that, it is soooooo easy to fall in love and bring them home!
Aren’t they wonderful?!
Linda

Hummingbird Moth from Japan

Green moth found in Japan
October 13, 2009
Hello!
My friend took a photo of this lovely moth in Tokyo, mid-October, near her apartment. I’ve been trying to find out exactly what it is, and I think it may be a Cephonodes species, but I’m unsure exactly what. If you could help give an exact ID that would be wonderful icon smile Hummingbird Moth from Japan
choco
Tokyo, Japan

cephonodes hyles japan1 Hummingbird Moth from Japan

Cephonodes hyles

Hi choco,
Your photo is tiny and lacking in resolution, but we agree that this is a Cephonodes species, probably Cephonodes hylas.  We found a photo quickly by doing a web search of Sphingidae Japan, and then double checked on the Sphingidae of the Eastern Palaearctic website.  That site states:  “When the moth first emerges, which it usually does in the early morning, the hyaline portion of the wings is covered densely with greyish scales. These come off in a little cloud when the wings are rapidly vibrated before the first flight (Bell & Scott, 1937)” and we believe these scales are present in your specimen, indicating that it has newly metamorphosed and has not yet flown.  Diurnal Sphinghids are often called Hummingbird Moths in North America since they are frequently mistaken for hummingbirds, and we are taking creative license with that common name in our posting title.

Arrowshaped Micrathena

Is it a Spider or a Beetle?
October 13, 2009
About 2cm long, less than 1cm at the widest part
KC
Salem Ohio

micrathena kc 300x168 Arrowshaped Micrathena

Arrowshaped Micrathena

Hi KC,
This is a spider known as the Arrowshaped Micrathena, Micrathena sagittata.


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