Geckos of the World, 

Part 3: Lentodactylidae

The Lentodactylids are a family of small, insectivorous geckos distributed widely across Aglirium. This is the largest of all lizard families on Apterra, with over 600 species separated into two subfamilies with highly divergent strategies. On one side is Lentodactylinae, the flypaper geckos, which catch their prey using the same sticky toe pads that let them climb up trees and rocks. This group is descended from the Muricene Lentodactylus, while its sister taxon Captopsinae (containing only a single genus) is descended from Chameleomimus. Like their ancestors, the lasso lizards use their long tongues to grab flies and woodlice. In the past, these two groups avoided competing with one another by occupying different regions of the subcontinent, with lasso lizards in the forests and flypaper geckos in open areas. Today, both subfamilies occur everywhere on Aglirium, coexisting only as a result of more recent niche partitioning. 

Basal members of Lentodactylinae like the Crestglider (Ciliopteryx) rely more on their microscopic setae to grip surfaces and prey, producing relatively little sticky mucus as a supplement. This genus has a greatly extended crest running the length of its body and reaching its greatest width over the shoulders. Like many gliding animals, the crestglider occasionally uses its lifting surface to help it disperse to new trees and escape predators, but its main purpose is to allow the lizard to change direction in midair when pursuing its own prey. The five-centimeter-long gecko hides in the trees and waits for a flying mosquito to pass by, then uses its hypertrophied hindlimbs to catapult itself into the air. This gives it the burst of speed it needs to make use of its aerodynamic crest, so if it does not succeed in its initial strike, it can often give itself a second chance by turning and diving towards its fleeing target - provided, of course, that the insect is somehow prevented from gaining altitude. To this end, crestgliders choose their hunting grounds carefully, usually perching on mid-level tree branches just below a thick canopy of palm-grass leaves. Ideal spots are in high demand, and territorial fights often prove deadly.

Large Lentodactylines are not a common sight, as their hand-grabbing method of prey capture limits their size to 30 centimeters or less. Still, the biggest members of the subfamily, such as the Gluefinger Gecko (Chirohaereus) are serious threats to animals - even vertebrates - lower on the food chain. Though it still primarily hunts arthropods, this genus rounds out its caloric intake with the occasional small bird or other lizard. The scattered populations of Abelitheres on the subcontinent are also potential prey; many a mother rat has returned from a brief excursion to find one of her pups missing from the den, carried away by the sticky, clawed hands of a now well-fed gluefinger. 

Though gluefinger geckos spend most of their days in the treetops, their terrestrial ancestry is betrayed by their nesting behavior. When ready to breed, females lay their eggs deep underground. This is necessary because they don't defend their clutches, so their large, nutritious eggs need to be hidden from other predators. However, their hyper-specialized forearms aren't capable of digging, so they usually acquire a burrow by killing a small animal and stealing its home. When the young hatch, they often find the entry to their tunnel has collapsed and sealed them inside, forcing them to dig their way out. This causes soil to stick to the pads of their toes, temporarily making them unable to climb. For their first few days, baby Chirohaereus must live on the ground, avoiding predators hundreds of times their size until they're finally able to escape into the canopy.

Tall trees, mountains, and rockslime cliffs are all prime habitats for a much smaller Lentodactyline: the Fingertrap Lizard (Decipulobrachius). This genus boasts a climbing ability exceptional even among geckos, allowing its many similar-looking species to thrive in quite disparate environments with little additional change. Fingertraps have gripping surfaces on their feet like all Apterran lizards, but are unique in that they have setae lining the entire undersides of their front and back legs. This was originally an adaptation that helped them hold onto struggling prey by wrapping their entire body around it. Over time, new functions arose. For example, during a harsh Medithalassic typhoon, fingertraps can cling to small twigs and branches far more easily than other species, making them more likely to survive the storm. 

On the other side of the family, the Grapple Gecko (Captops) has a very different set of features that similarly grant it all-terrain success. Common on forest floors, savannas, and mountain hillsides, this skinny, half-meter-long predator is the bane of giant bugs. Halteropteryx and other large dustflies are a staple of its diet, as are the giant Pugilopsids. The grapple gecko's tongue, which can be as long as the rest of its body, can shoot out in a tenth of a second, snatching insects from the air faster than the blink of an eye. While it's the largest member of its family, this genus is still vulnerable to monitor geckos even as an adult, as well as gluefingers during the early stages of its life. Paired with their mediocre climbing skills, this means grapple geckos can never let their guard down. For example, they sleep for only half an hour or so, over a dozen times a day. Their nesting behavior also reflects this instinctual sense of caution; females make up to twenty nests a year, each with only three or four eggs, so that if any one is discovered, the overall loss is minimal.