Forgotten Foto Friday: Centruroides vittatus

I got this idea from Doug Taron over at Gossamer Tapestry, who credits Steve Borichevsky at Shooting my Universe for an occasional feature called Forgotten Photo Friday (hopefully my use of the alternative spelling “Foto” won’t be considered too presumptuous).  Perfect timing, as I recently ran across these photos of Centruroides vittatus (striped bark scorpion) that I took last fall after finding him secreted under a rock in a dolomite glade at White River Balds Natural Area in extreme southwest Missouri.  One other photo from the series did make it onto the blog last year – an extreme closeup of his seemingly “smiling” face (see A face only a mother could love), and while these photos are less extreme, I think they still deserve to be shared nevertheless.



One thing that strikes me about this individual is how marvelously well-matched is his coloration with that of the surrounding rocks – a perfect example of the cryptic coloration that characterizes most members of the family (Buthidae) to which this species belongs.

Photo Details: Canon 50D w/ 100mm macro lens (ISO 100, 1/250 sec, f/13-16), Canon MT-24EX flash (1/4 ratio) w/ Sto-Fen. Typical post-processing (levels, minor cropping, unsharp mask).

Copyright © Ted C. MacRae 2010

BitB Best of 2009

In my first post of 2009, I looked back at the photographs I had posted during 2008 and picked some of my personal favorites. I hesitated then to call myself a photographer (and still do), but I at least now have suitable equipment to aid in my progress toward that eventual goal. I have learned much over the past six months in my first attempt at serious insect macrophotography (prioritizing in situ field photographs of unmanipulated subjects as a matter of personal choice).  Through this, I’ve come to realize the following skills to be the most important for success:  

  1. Composition
  2. Understanding lighting
  3. Knowing how to use a flash
  4. Knowledge of the subject

I’ll give myself a “A” in the last of these, but in the other areas I still have much to learn. With this caveat, and for the last post of 2009, I offer the following twelve photographs as my final choices for the 2nd Annual “Best of BitB”:  

Best beetle

Cylindera celeripes (swift tiger beetle), Woodward Co., Oklahoma

From Revisiting the Swift Tiger Beetle – Part 1 (June 30).  A decent enough photograph, especially considering that I’d had my camera for about a month when I took it.  However, the discovery of robust populations of this formerly rare and enigmatic species throughout northwestern Oklahoma (and later also in northwestern Missouri) was the most significant find of the 2009 field season, and this photograph is the best capture of that moment.

Best fly

Stylogaster neglecta, a species of thickheaded fly

From Overlooked, needle-bellied, thick-headed fly (Aug 14).  One of my first good “black background” shots.  The white tip of the abdomen compliments the white flower stamens against the background.

Best “true” bug

Beameria venosa, a prairie obligate cicada

From North America’s smallest cicada (Aug 4).  So many different shades of green with white frosting on the bug’s body.  I tried taking this shot in portrait and it just didn’t work—I liked this landscape shot much better.

Best predator

Promachus hinei (Hines giant robber fly) & Ceratina sp. (small carpenter bee) prey

From Prey bee mine (Sept 14).  Robber flies are immensely photogenic, especially those in the genus Promachus due to their prominent “beards.”

Best camoflauge

Dicerca obscura on bark of dead persimmon

From The “obscure” Dicerca (June 19).  Sparkling and gaudy as specimens in a cabinet, the coloration of many jewel beetles actually helps them blend almost perfectly with the bark of their preferred tree hosts.

Best immature insect

Tetracha floridana (Florida metallic tiger beetle) 3rd-instar larva

From Anatomy of a Tiger Beetle Larva (Oct 22).  “Otherwordly” is invariably the first word that comes to mind when someone sees a tiger beetle larva for the first time.  I was lucky enough to get this one in profile with a nice view of its abdominal hump and its curious hooks.

Best arachnid

Centruroides vittatus (striped bark scorpion)

From A face only a mother could love (Oct 6).  Despite some minor depth-of-field problems with this photograph, I’m fascinated by its “smile.”

Best reptile

Eastern collared lizard (Crotaphytus collaris collaris) adult male

From North America’s most beautiful lizard (July 10).  A simply spectacular lizard—all I had to do was frame it well and get the flash right.

Best wildflower

Spiranthes magnicamporum (Great Plains ladies

From Great Plains Ladies’-tresses (Dec 7).  Few flowers are as photogenic as orchids, even native terrestrials with minute flowers such as this one.  I like the frosty texture of the lip and the starkness of the white flower on the black background.

Best natural history moment

Thermoregulatory behavior by Ellipsoptera hirtilabris (moustached tiger beetle)

From Tiger Beetles Agree—It’s Hot in Florida! (Dec 18). I chose this photo for the classic “stilting” and “sun-facing” thermoregulatory behaviors exhibited by this tiger beetle on a blistering hot day in Florida.

Best closeup

Megaphasma denticrus (giant walkingstick)

From North America’s longest insect (Aug 21).  I haven’t tried a whole lot of super close-up photographs yet.  I liked the combination of blue and brown colors on the black background.

Best Landscape

Sand Harbor Overlook, Lake Tahoe, Nevada

From Sand Harbor Overlook, Nevada (March 23).   My choice for “best landscape” again comes from Lake Tahoe.  This is not a great photo technically—I was still using a point-and-shoot and had to deal with foreground sun.  However, none of the other photos I took during my March visit to the area captivate me like this one.  I like the mix of colors with the silhouetted appearance of the trees on the point.

Copyright © Ted C. MacRae 2009

Add to FacebookAdd to DiggAdd to Del.icio.usAdd to StumbleuponAdd to RedditAdd to BlinklistAdd to TwitterAdd to TechnoratiAdd to Yahoo BuzzAdd to Newsvine

Email to a friend

A face only a mother could love

Centruroides vittatus - striped bark scorpion

Centruroides vittatus - striped bark scorpion

I found this guy yesterday secreted under a rock in a limestone glade at White River Balds Natural Area in extreme southwest Missouri.  Centruroides vittatus¹ is the most common scorpion in the U.S., occurring naturally in southern Missouri, western Arkansas and western Louisiana, west through Texas, Oklahoma and much of Kansas to southeastern Colorado and eastern New Mexico, and south into northern Mexico (Shelley and Sissom 1985). The Missouri and Mississippi Rivers, respectively, seem to form natural northern and eastern distributional boundaries, with occurrences just to the north and east attributed to rafting or natural alterations of the river’s courses and those occurring far outside the natural range regarded as the result of human introductions. This includes not only states in the eastern U.S., but several countries in South America (Sissom and Lourenco 1987)!

¹ The generic name Centruroides is from the Greek words centr-, meaning “pointed,” ur, meaning “tail,” and -oides meaning “like” or “the form of” (the original genus name, Centrurus, was preoccupied by another animal, thus, Centruroides, or “like Centrurus“). Centruroides is often misspelled as “Centuroides” in non-primary literature.

If you squit your eyes, it looks like he’s “smiling”! Also, note the eight eyes (two dorsal and three each side laterally)! Also, I know I didn’t nail the focus on the dorsal ocelli – depth-of-field limitations prevented getting both the ocelli and the jaws. I should’ve gone f/16 but thought I’d nailed it. That’ll teach me not to bracket anyway!

Photo details: Canon 65mm 1-5X macro lens on Canon EOS 50D, manual mode, ISO-100, 1/250 sec, f/14, MT-24EX flash 1/4 power through diffuser caps. Photo slightly cropped and darkened.

REFERENCES:

Shelley, R. M. and W. D. Sissom. 1985. Distributions of the scorpions Centruroides vittatus (Say) and Centruroides hentzi (Banks) in the United States and Mexico (Scorpiones, Buthidae). The Journal of Arachnology 23:100–110.

Sissom, W. D. and W. R . Lourenço. 1987. The genus Centruroides in South America (Scorpiones, Buthidae). The Journal of Arachnology 15:11–28.

 

Copyright © Ted C. MacRae 2009

Add to FacebookAdd to NewsvineAdd to DiggAdd to Del.icio.usAdd to StumbleuponAdd to RedditAdd to BlinklistAdd to TwitterAdd to TechnoratiAdd to Furl