Scelaphorus undulatus hyacinthinus, the Northern Fence Lizard. Very common in the state of Arkansas. Our only "spiny" lizard species. The skittering creature that rattles the leaves when it suddenly dashes away. Seeks shelter on logs and treetrunks. Males have the stunning blue throat and belly patches. Females are smaller and have very little color beneath.

 More neon beneath this 2011 male from my creek. Taken with the new 300mm lens. Which is like cheating. Still even at this range seems to be giving me the stinkeye.

Male with his blue patches glowing from his treelimb perch. This day they were climbing trees and snapping insects out of the air.

Females of the Northern Fence are much more strongly marked dorsally. With the Vs and Ws going for them on that copper and gray back. This one was catching some much needed warmth on a cool spring day.

Female face in spring.

Males are sometimes nearly black. This was a young spring male.

This female was doing a dance with a nearby male. I don't know if this is receptive or get-the-hell-away body language but it meant something.

This is the southern form, S. undulatus undulatus. From Florida. Reportedly blacker beneath in both sexes. This one looks more marked facially as well.

This is Scelaphorus woodi, the Florida Scrub Lizard. Manhandled by me in the Florida scrub of north Florida. Note the fine orange brown stripe down the side which is distinctive in this group. Has the blue throat marks of our local fence and the belly patches of blue as well as a very red-brown tail. Nice creature. Lives in several disjunctive areas of Florida only.

And after years I am 90% convinced this is also a Scelaphorus, from the AZ countryside. I think it is S. bimaculosus in fact, the Twin-spotted Spiny Lizard. Males have dark side throat marks. You can see the resemblance to our eastern species otherwise.

The Racerunner species in our state is Cnemidophorus sexlineatus. The state has subspecies viridis in most of the NW section, now called the Prairie Racerunner and C. s. sexlineatus in the south and SE portion, still called the Six-lined Racerunner. This juvenile is from Holla Bend and though this is a common lizard it is very difficult to shoot. Wary and fast. These 4 to 5 inch juveniles were all over the place on the sand in August sheltering under the big Prickly Pear clumps. Adults get the bright greenish blue on the forebody and face in the viridis subspecies. Mostly they chase down insects but I saw one adult take a frog this day.

The magnificent Collared Lizard, Crotaphytus collaris collaris. This is a male with all that blue-green in the body. Creatures of northwest Arkansas who love rockpiles and limestone ledges, also shorelines on the big north AR lakes. This is from Bob Barber's pet colony. Grow up to 14 inches in length (without tail). Famous for running on the hind legs when up to full evasion speed.

This is a juvenile female I believe. Only about 7 inches in length from the Petit Jean colony. Very striking colors with none of the blues and greens of the big males.

This is a male from the Petit Jean colony. More orange than I've ever seen. This was about 20 inches long with the tail.

This is the same male. Full length shot. I'm still amazed at him.

Compare this one of Norm and Cheryl's from same area. Endlessly variable I suppose.