Currently viewing the category: "Spiders"
What's That Bug? does not endorse extermination

Subject: Is this a Black Widow Spider
Location: Johnstown, PA
August 21, 2017 2:53 pm
My name is John and I am the safety director for a company based out of Johnstown, PA. Earlier today, August 21, 2017 I was approached by two mechanics working on a truck with a concern over a spider. Today was the day of the eclipse and was a very nice warm day, temperature mid to upper 80’s. the spider was located in a sealed portion of the truck that under normal circumstances is very dark. there was a repair needed in the area so a hatch was opened up to reveal the webbing and the spider. After multiple people viewed the spider there was an ensuing debate on whether it was a Black Widow or not. Please help.
Signature: John Gregorchik

Black Widow

Dear John,
Because of the red hourglass marking on the ventral surface, we are 100% confident this is a female Black Widow Spider.

What's That Bug? does not endorse extermination

Subject: Spider on woody plant
Location: Mt Washington, CA
August 21, 2017 5:59 pm
Dear Mr. Bug,
There is a lovely green spider living on my woody plant. My boyfriend insists that this spider is just guarding the plant from other, more nefarious bugs. It is quite a beautiful spider and has black hairs on its legs. What is it? And will this spider eat my stigmas?
Thanks!
Signature: Lady Nugs

Green Lynx Spider

Dear Lady Nugs,
Goodness gracious, Mt. Washington seems to be a fertile environment for growing woody plants.  Your boyfriend is correct.  Spiders are predatory and not phytophagous, so your plants are safe.  This is a Green Lynx Spider, and the shape of the pedipalps indicates this is a female.  We did need to brush up on our botany regarding the “stigma”, so we headed to Encyclopaedia Britannica to rediscover that “The gynoecium, or female parts of the flower, comprise the pistils, each of which consists of an ovary, with an upright extension, the style, on the top of which rests the stigma, the pollen-receptive surface.”  Your images are gorgeous, and the detail is incredible.  It is our experience that Green Lynx Spiders gravitate toward plants where they will be well camouflaged.  Your Green Lynx Spider blends in perfectly with the inforescence also visible in the image.

Green Lynx Spider

What's That Bug? does not endorse extermination

Subject: Tarantula gender (?)
Location: Southern AZ (Santa Cruz county)
August 21, 2017 8:36 am
WTB,
Is there an easy way to determine the gender of our local tarantula without disturbing it? (photo attached)
Signature: Len Nowak (SALERO RANCH)

Male Tarantula, we believe

Dear Len,
This looks to us to be a male Tarantula, and it looks remarkably like this Tarantula from Nevada we posted recently.  We believe your Tarantula is a male for the following reasons.  It has large pedipalps.  The abdomen is small and the legs are long.  Male Tarantulas tend to wander in search of a mate.  Female Tarantulas are more sedentary, living in the same burrow for up to 25 years.  We have not read that.  We just believe it.

What's That Bug? does not endorse extermination

Subject:  Classic Orb Web
Location:  Mount Washington, Los Angeles, California
August 18, 2017 9:17 am
The early morning sunlight is beautifully captured on the silken strands of this Tree Spider web,
Araneus gemma, a common species in the Los Angeles area.  Both the size of the spiders and the size of their webs is increasing as summer wanes.  According to BugGuide:  “Builds web in open areas of trees, large shrubs and around houses.”  The Natural History of Orange County site lacks information, but does provide the common name Tree Spider.  According to the Natural History Museum of Los Angeles:  ” locally we have one very common species; A. gemma, perhaps the heaviest north American orb weaver. It’s round, humped abdomen is usually pale colored, tan yellow or greenish, with a single thin median white stripe. It builds a large orb from trees and buildings in moister parts of the valleys and canyons, spending the day hiding in a loose nest made of leaves and silk, usually under an overhanging ledge or branch.”  We have been observing these spiders for years, and large individuals often spin webs at night near lights and between shrubs in paths in our garden.  The spiders are active nocturnally and hide during the day.

Orb Web

 

What's That Bug? does not endorse extermination

Subject: Spider
Location: Camarines Sur, Philippines
August 19, 2017 6:14 am
Can you please identify this spider I found in our school? I need his to be identified today for our project. Thanks.
Signature: Gwnypasadilla

Orbweaver: Argiope appensa

Dear Gwnypasadilla,
This is an Orbweaver in the genus
Argiope.  Our research led us to this Wikimedia Commons image of Argiope appensa, and we verified that on Project Noah where the St Andrew’s Cross Spider this information is provided:  “Locally know here in the Philippines as ‘Gagambang Ekis’ or literally translated as X spider. The abdomen looks like a face mask.”

What's That Bug? does not endorse extermination

Subject: scary orb web spider
Location: Bangalore, India
August 19, 2017 2:12 am
Dear bugman,
First up, congratulations for the work that you do. I found an orb weaver near my place. But it’s patterns don’t match up to any orb weavers on the internet. Please take a look at it
Signature: Gautam dikshit

Orbweaver

Dear Gautam,
This is an Orbweaver in the genus Argiope, a group sometimes called Writing Spiders because of the zigzag stabilimentum woven into the web.  It might be
Argiope anasuja, which is pictured on the Orb Web Spiders of India site where it states:  “Argiope anasuja is a species of Orb spider found in Asia ranging from Pakistan to the Maldives. Like other species of the same genus, it builds a web with a zig-zag stabilimentum. The mature female of A. anasuja always rests at the centre of the orb with her head facing downwards. The orb has an opening at the centre and when disturbed she goes through the hole and exits on the other side of the plane of the web.”  Another very similar looking species found in India and pictured on Alamy is Argiope pulchella.

Orbweaver

What's That Bug? does not endorse extermination