Velvet Worm (Euperipatoides sp.), family Peripatopsidae, QLD, Australia
photograph by Stephen Zozaya
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Velvet ants are so common in the Florida sand that I don't always give them a second look (unless they're miniscule), but this one caught my eye because it suddenly buried itself in the sand, by scooting backwards. 👀👀
Brachynemurus nebulosus - an ant lion mimicking velvet ants!
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Oroperipatus tiputini: A new species of Velvet Worm from the Ecuadorian Amazon.
Velvet Worms, Onychophora, are a unique group of elongate, soft bodied, many legged Animals, given phylum status and considered to be among the closest living relatives to the Arthropods. They are currently the only known phylum of Animals known entirely from terrestrial species, both living and fossil, although they may be related to the Lobopodans, an entirely marine group known only from Early Palaeozoic fossils.
The 230 living Velvet Worm species are divided into two groups, the Peripatidae, found in the tropics of Central and South America, the Antilles Islands, Gabon, India, and Southeast Asia, and the Peripatopsidae, found in Chile, South Africa, Papua New Guinea, Australia, and New Zealand. All South American members of the Peripatidae are placed within a single clade, the Neopatida, which is further divided into two lineages, the 'Andean' genus Oroperipatus, and the 'Caribbean' lineage, comprising all other genera.
Read the paper: (https://zse.pensoft.net/article/117952/)
The new species is described from five male, three female, and three juvenile specimens collected in the vacinity of the Tiputini Biodiversity Station of the Universidad San Francisco de Quito in Orellana Province, Ecuador, between 2001 and 2023, as well as one youngling, which one of the female specimens gave birth to in captivity. The new species is named Oroperipatus tiputini, in reference to the location where it was discovered.
Adult female specimens of Oroperipatus tiputini very between 46 and 65.3 mm in length, while the adult males are smaller at 22.7 to 39.8 mm. Females have between 37 and 40 pairs of legs, while the males have between 34 and 37, although one male specimen had a different number of legs on each side, with 35 legs on the right and 36 legs on the left.
The species shows considable colour variation, with one adult male being a light brown colour with a faint rhomboid pattern, two adult males and one adult female being brown with orange diamonds, and another female (the one which produced a youngling) being a plain dark orange colour. The youngling itself was yellowish with a diamond pattern. All specimens were darked on their heads and antenae, had orange or brown legs, and a distinctive white band on the head.
Most specimens of Oroperipatus tiputini were found on small herbaceous Plants within old growth, closed canopy upland forests around the Tiputini Biodiversity Station. Other specimens were found in leaf litter, or on the butress roots of trees to a height of about 70 cm above the ground. One specimen was found in a Bromiliad. The Worms were more active at night.
IMAGE: Colour variation in the life of Oroperipatus tiputini. (A) Adult male paratype, ZSFQ-i8270; (B) adult male paratype, ZSFQ-i5151; (C) adult female holotype, ZSFQ-i8248, and youngling paratype, ZSFQ-17794, a few days after being born. All photographs were taken at the Tiputini Biodiversity Station. Photographs by Pedro Peñaherrera (A), (C) and Diego Cisneros-Heredia (B).
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