PARAMARIBO - A “cowboy frog” and a “crayola katydid” are among 46 new species that have been discovered in the dense forests of the tiny South American nation of Suriname, scientists said Wednesday. The caramel-colored frog displays white fringes along its back legs and a spur on its heels, while the unusual katydid earned its nickname from the striking hues on its body and wings. Other discoveries included a two-inch (five-centimeter) catfish, and larger catfish covered with a spiny armor to protect it against predators in the piranha-filled river.