Photos / Sounds

Square

What

Stripetails Genus Allograpta

Observer

wildcarrot

Date

March 27, 2020 01:50 PM CDT
Stripetails - Photo (c) Denis Doucet, all rights reserved
mokennon's ID: Stripetails (Genus Allograpta)
Added on March 28, 2020.
Supporting

Photos / Sounds

Observer

claggy

Date

March 4, 2020 02:17 PM CST

Place

Texas, US (Google, OSM)

Description

There were a bunch of these floating/hopping around in a bucket of rain water.

Isotominae - Photo (c) crx2aj3, some rights reserved (CC BY-NC)
mokennon's ID: Subfamily Isotominae, a member of Elongate-bodied Springtails (Order Entomobryomorpha)
Added on March 25, 2020.
Supporting

Photos / Sounds

Observer

claggy

Date

March 4, 2020 02:17 PM CST

Place

Texas, US (Google, OSM)

Description

There were a bunch of these floating/hopping around in a bucket of rain water.

Elongate-bodied Springtails - Photo (c) Gary McDonald, all rights reserved
mokennon's ID: Elongate-bodied Springtails (Order Entomobryomorpha)
Added on March 18, 2020.
Improving

Photos / Sounds

What

Tuft-legged Orbweaver Mangora placida

Observer

claggy

Date

March 14, 2020 11:42 AM CDT

Place

Texas, US (Google, OSM)

Description

Tuft-legged Orbweaver - Photo (c) christine123, all rights reserved
mokennon's ID: Tuft-legged Orbweaver (Mangora placida)
Added on March 15, 2020.
Supporting

Photos / Sounds

Square

Observer

treegrow

Date

August 24, 2019 06:58 PM EDT
Acanthocephala terminalis - Photo (c) Lisa Brown, some rights reserved (CC BY-NC)
mokennon's ID: Acanthocephala terminalis, a member of Leaf-footed Bugs (Family Coreidae)
Added on March 12, 2020.
Supporting

Photos / Sounds

What

Ladybirds Family Coccinellidae

Observer

malisaspring

Date

August 13, 2015 11:24 PM EDT
Lady Beetles - Photo (c) smorsi, some rights reserved (CC BY-NC)
mokennon's ID: Ladybirds (Family Coccinellidae)
Added on March 06, 2020.
Supporting

Photos / Sounds

Square

Observer

claggy

Date

February 16, 2020 01:48 PM CST

Place

Texas, US (Google, OSM)
Tetragnatha - Photo (c) Dendroica cerulea, some rights reserved (CC BY)
mokennon's ID: Genus Tetragnatha, a member of Long-jawed Orbweavers (Family Tetragnathidae)
Added on March 03, 2020.
Supporting

Photos / Sounds

Square

Observer

kimberlietx

Date

March 15, 2017 01:25 PM CDT
Checkered-Skippers, White-Skippers, and Allies - Photo (c) Daniel H. Janzen, Guanacaste Dry Forest Conservation Fund, some rights reserved (CC BY-NC-SA)
mokennon's ID: Checkered-Skippers, White-Skippers, and Allies (Tribe Pyrgini)
Added on February 28, 2020.
Supporting
Added as part of a taxon split

Photos / Sounds

Square

Observer

kimberlietx

Date

January 29, 2017 01:42 PM CST

Description

I can't figure out which species with any degree of confidence, so I'll defer to those with more experience.

Checkered-Skippers, White-Skippers, and Allies - Photo (c) Daniel H. Janzen, Guanacaste Dry Forest Conservation Fund, some rights reserved (CC BY-NC-SA)
mokennon's ID: Checkered-Skippers, White-Skippers, and Allies (Tribe Pyrgini)
Added on February 28, 2020.
Supporting
Added as part of a taxon split

Photos / Sounds

Square

What

F-Winged Barklouse Graphopsocus cruciatus

Observer

treegrow

Date

June 16, 2018 04:43 PM EDT

Description

Graphopsocus cruciatus. Meadowside Nature Center, Rockville, Maryland, USA.

F-Winged Barklouse - Photo (c) Alice Abela, all rights reserved
mokennon's ID: F-Winged Barklouse (Graphopsocus cruciatus)
Added on February 19, 2020.
Supporting

Photos / Sounds

Square

Observer

kimberlietx

Date

February 13, 2020 04:22 PM CST
Philodromus - Photo (c) Donald Hobern, some rights reserved (CC BY)
mokennon's ID: Genus Philodromus, a member of Running Crab Spiders (Family Philodromidae)
Added on February 16, 2020.
Supporting

Photos / Sounds

Square

What

Japanese Maple Leafhopper Japananus hyalinus

Observer

allenwoodliffe

Date

September 19, 2019 08:54 PM EDT
Japanese Maple Leafhopper - Photo (c) Martha O'Kennon, some rights reserved (CC BY-NC)
mokennon's ID: Japanese Maple Leafhopper (Japananus hyalinus)
Added on January 30, 2020.
Supporting

Photos / Sounds

What

Ground Crab Spiders Genus Xysticus

Observer

arnel

Date

January 12, 2020 10:17 AM PST

Description

I discovered this Crab Spider (Xysticus sp.), in a cluster of unopened flowers on a California Bay Laurel (Umbellularia californica) at Alum Rock Park in San Jose, CA. This California Bay Laurel was located along the banks of Penitencia Creek, which runs through the center of Alum Rock Park. I took 5 shots from as many different angles as the spider would allow, to help facilitate with its identification. I shall refer to these shots in series order below, with the first shot of the series being Shot 1, the second shot of the series being Shot 2, etc.

I could tell that the spider in my photograph was a crab spider because of its stocky build and laterigrade forelegs (see especially Shots 2 and 5). The laterigrade forelegs allow it to spread its forelegs at a 90 degree angle with respect to the main axis of its body. In northern California, there are three main categories of crab spiders: the giant crab spiders of the family Sparassidae, the running crab spiders of the family Philodromidae, and the regular crab spiders of the family Thomisidae.

Giant Crab Spiders are dorsoventrally flattened, which is not the case for my spider. Their legs are also quite long and spindly, much longer than those of my spider Therefore the Giant Crab Spiders in Sparassidae can be eliminated from consideration.

Running Crab Spiders are characterized by having a pair of forelegs that are shorter than the pair of legs immediately behind them. From Shot 2, it is clear that, for my spider, this is not the case (i.e., its forelegs are longer than the pair of legs behind them). Therefore the Running Crab Spiders in Philodromidae can also be eliminated from consideration.

This leaves us with the regular Crab Spiders in the family Thomisidae. There are two major categories for the Thomisidae-type Crab Spiders: those that are brightly colored, and those that are not. My spider is not brightly colored at all, so about half of the genera in Thomisidae can be eliminated. This leaves us with the genera Xysticus, Ozyptila, Tmarus, and Coriarachnae.

Tmarus can be eliminated because spiders in this genus have an elongated body shape that makes them resemble leaf buds. Coriarachne can also be eliminated because the carapace of these spiders is highly flattened. This leaves us with the two remaining genera, Xysticus and Ozyptila. These two genera can be differentiated by looking at the dimensions of their femurs. Xysticus-type spiders have long femurs (length about 4 times their thickness), whereas Ozyptila-type spiders have shorter, thicker femurs (length about 2 times their thickness). After examining the femurs of this spider’s legs, their lengths appear to be 4 times their thickness, so this is a Xysticus-type spider.

Not being an arachnologist, it is entirely possible that my analysis is off, so I consider this identification to be tentative. Suggestions and corrections are welcome!

Overall Dimensions:
Spider was approximately 7mm long by 3mm wide.

References:
1) Adams, R.J. (2014). Field Guide to the Spiders of California and the Pacific Coast States. Befekeley, CA: University of California Press. See especially the descriptions of the Sparassidade, Phildromidae, and Thomisidae families on pp. 180-195.

Ground Crab Spiders - Photo (c) Henk Wallays, all rights reserved
mokennon's ID: Ground Crab Spiders (Genus Xysticus)
Added on January 21, 2020.
Supporting
Isotoma delta - Photo (c) PerkPenn, some rights reserved (CC BY-NC-ND)
mokennon's ID: Isotoma delta, a member of Elongate-bodied Springtails (Order Entomobryomorpha)
Added on January 13, 2020.
Supporting

Photos / Sounds

What

Downy Yellowjacket Vespula flavopilosa

Observer

ceiseman

Date

August 30, 2019 12:32 PM EDT

Description

Feeding on a carcass of what I'm told is probably Paonias excaecata.

Downy Yellowjacket - Photo (c) Don Magnusson, all rights reserved
mokennon's ID: Downy Yellowjacket (Vespula flavopilosa)
Added on January 13, 2020.
Supporting

Photos / Sounds

What

Broad-headed Sharpshooter Oncometopia orbona

Observer

wildcarrot

Date

January 11, 2020 04:31 PM CST
Broad-headed Sharpshooter - Photo (c) Buddy, some rights reserved (CC BY-NC)
mokennon's ID: Broad-headed Sharpshooter (Oncometopia orbona)
Added on January 13, 2020.
Supporting

Photos / Sounds

What

Green Long-jawed Spider Tetragnatha viridis

Observer

bennet

Date

September 17, 2016 11:18 AM EDT
Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

Square

What

Green Long-jawed Spider Tetragnatha viridis

Observer

paullewis

Date

October 15, 2019 04:15 PM EDT
Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

What

Green Long-jawed Spider Tetragnatha viridis

Observer

glmory

Date

May 7, 2017 03:55 PM PDT
Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

What

Green Long-jawed Spider Tetragnatha viridis

Observer

pennyflip

Date

November 29, 2016 09:42 AM HST
Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

Square

What

Green Long-jawed Spider Tetragnatha viridis

Observer

skitterbug

Date

March 20, 2017
Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

What

Green Long-jawed Spider Tetragnatha viridis

Observer

ferox_formicae

Date

November 28, 2019 06:35 PM EST
Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

What

Green Long-jawed Spider Tetragnatha viridis

Observer

kkeivit

Date

July 20, 2018 04:04 PM EDT

Description

Not sure if ID.

Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

What

Green Long-jawed Spider Tetragnatha viridis

Observer

zoology123

Date

November 4, 2018 07:27 PM EST
Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

What

Green Long-jawed Spider Tetragnatha viridis

Observer

srickey

Date

April 4, 2019 01:37 PM EDT
Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

Square

What

Green Long-jawed Spider Tetragnatha viridis

Observer

maxcavitch

Date

August 31, 2019 01:21 PM EDT
Green Long-jawed Spider - Photo (c) Eric Knopf, some rights reserved (CC BY-NC)
mokennon's ID: Green Long-jawed Spider (Tetragnatha viridis)
Added on December 30, 2019.
Supporting

Photos / Sounds

What

Globular Springtails Order Symphypleona

Observer

wildcarrot

Date

December 29, 2019 10:33 AM EST
Globular Springtails - Photo (c) F. Marquard, some rights reserved (CC BY-NC-SA)
mokennon's ID: Globular Springtails (Order Symphypleona)
Added on December 29, 2019.
Supporting

Photos / Sounds

Date

July 6, 2016 09:49 PM EDT
Metylophorus novaescotiae - Photo (c) Bill Keim, all rights reserved
mokennon's ID: Metylophorus novaescotiae, a member of Common Barklice (Family Psocidae)
Added on December 23, 2019.
Supporting

Photos / Sounds

Square

What

F-Winged Barklouse Graphopsocus cruciatus

Observer

janet31

Date

October 31, 2018 03:45 PM EDT
F-Winged Barklouse - Photo (c) Alice Abela, all rights reserved
mokennon's ID: F-Winged Barklouse (Graphopsocus cruciatus)
Added on December 23, 2019.
Supporting

Photos / Sounds

Observer

mobbini

Date

November 24, 2019 03:04 PM CET
Issus - Photo (c) Roland Gromes, some rights reserved (CC BY-SA)
mokennon's ID: Genus Issus, a member of Issid Planthoppers (Family Issidae)
Added on December 21, 2019.
Supporting

Stats

  • 203