Currently viewing the category: "Spiders"

Subject:  Dolomedes (?) with odd markings?
Geographic location of the bug:  Hawthorne, Florida
Date: 06/22/2020
Time: 07:37 PM EDT
Your letter to the bugman:  Saw this large lady on the Hathorne trail, resting on a beam of a small bridge that crosses a tributary to Lake Lochloosa.  Looks like Dolomedes to me but can’t find any images with same striking combination of markings.  Maybe some odd form of D. albineus?  She is probably 5-6″ (8″ support beam she’s resting on), 20-June-2020.
How you want your letter signed:  Reuben

White-Banded Fishing Spider

Dear Reuben,
We agree that this is a Fishing Spider, and it is most likely
Dolomedes albineus.  Here is a very similar looking individual (also from Florida) pictured on BugGuide.

Subject:  Spider ID
Geographic location of the bug:  Llubovane Dam, Eswatini, Southern Africa
Date: 02/25/2020
Time: 12:03 AM EDT
Your letter to the bugman:  Good day,
Please can you ID these two spiders. The large one is beautiful. They were on a dead tree stump in the dam. The large one was walking down the stump under the water and coming back up, perhaps looking for food?
How you want your letter signed:  Jacqui

Fishing Spider we believe

Dear Jacqui,
The behavior you witnessed, “large one was walking down the stump under the water and coming back up, perhaps looking for food?”, and the markings on the carapace are both consistent with Fishing Spiders from the genus
Dolomedes found in North America, as evidenced by this BugGuide image.  While we have not had any luck locating any similar looking South African members of the genus, according to Wikipedia:  “The second largest number of species occur in tropical Africa.”  Perhaps one of our readers will be able to identify your gorgeous spider to the species level.  We do not know the identity of the smaller Spider in your image.  According to Science Direct:  “Sierwald (1988) examined predatory behavior of the African pisaurid Nilus curtus O.P.-Cambridge (=Thalassius spinosissimus [Karsch]). Its hunting posture is like that of Dolomedes, anchored by one or more hindlegs to an emergent object with its remaining legs spread on surface of water. When disturbed, the spider pulls itself below the surface of the water by crawling down an emergent object. They can remain submerged for up to 35 min. Prey swimming under water (insects, tadpoles) are grabbed by the front legs pushing down through the surface film. Prey trapped by surface tension were jumped on if close enough, or rowed to if further away.”  Members from the genus Nilus pictured on iNaturalist do resemble your individual.

Subject:  Id spider please
Geographic location of the bug:  Panama, western highlands 5400 ft
Date: 02/10/2020
Time: 11:26 AM EDT
Your letter to the bugman:  Hi – help id this spider who was staying still on the floor of my house in western panama highlands. About 2+ inches as in pic
How you want your letter signed:  Nancy S

Flattie, NOT Giant Crab Spider

Dear Nancy,
This is a harmless Giant Crab Spider in the family Sparassidae.  Here is an image from Flickr of a Giant Crab Spider from Panama.  We are uncertain of your species.  Giant Crab Spiders are nocturnal and they do not spin a web to snare prey.  They hunt.

Correction Courtesy of Cesar Crash: 
I think it’s a flattie, Selenops sp.

Ed. Note:  See images of a Flattie from Costa Rica on Quaoar Power Zoo.

Subject:  Hairy Momma?
Geographic location of the bug:  Oroville, CA (Butte County)
Date: 01/28/2020
Time: 06:17 PM EDT
Your letter to the bugman:  Found this hairy lurker on the inside of the doorjamb of an old truck in mid January 2020.  Weather’s been in the 40-60*F range, with rain.  Grabbed a quick photo, but can’t find a plausible ID anywhere….can you help?
Thinking this may be a female in the process of establishing an egg sac, perhaps?  Gorgeous, but too hairy for most IDs to match.
How you want your letter signed:  Cole

Golden Huntsman Spider

Dear Cole,
This is a Huntsman Spider or Giant Crab Spider in the genus
Olios, probably Olios giganteus, a Golden Huntsman Spider.  According to Spider ID:  “Egg sac is spun inside a large, spherical retreat (about 25mm in diameter) in which the female spider also resides, guarding the sac and the spiderlings that emerge from it.”  According to Backyard Nature:  “This Southwestern US and Mexican, arid-land, nocturnal species is known to spin silken “retreats” in which it may spend the day, or to complete molting. Also, the female may spin such a retreat to stay in as she guards her egg sac and the spiderlings who emerge from the sac.”  This species is also represented on BugGuide.

Ah HA!  Thank you so much!!  I love love love you folks, and am so grateful for what you do.   Your site is a phenomenal resource!!

Subject:  Blue jumping spider?
Geographic location of the bug:  Topeka KS
Date: 11/18/2019
Time: 05:55 PM EDT
Your letter to the bugman:  I saw a previous question about a blue jumping spider during my search. This little guy was at the storage units my mom works at. No altering to the photo at all. Not a hoax. I couldnt find much online about blue spiders. Coolest little spider I’ve seen. I think it’s a jumping spider?
How you want your letter signed:  Brandy

Jumping Spider

Dear Brandy,
This is definitely a Jumping Spider in the family Salticidae, and it does appear to be quite bluish, but we cannot provide you with a species name.

Subject:  Big ass spider
Geographic location of the bug:  Statenisland NY 10312
Date: 11/06/2019
Time: 07:56 PM EDT
Your letter to the bugman:  What is this this big a×× spider…. it jumps
How you want your letter signed:  Thanks Elizabeth

Fishing Spider

Dear Elizabeth,
This is a Fishing Spider in the genus
Dolomedes.  Though it is large and frightening, Fishing Spiders are not aggressive towards humans and the bite is not considered dangerous.