A pinworm's tale: The evolutionary history of .

is the only pinworm species known to infect strepsirrhine primates outside Africa, and the only pinworm species yet described in slow lorises. Here, we provided a detailed morphological comparison of female and male worms, and a first description of fourth-stage larvae collected from free-living slow lorises () in Sabah, Malaysian Borneo. Using mitochondrial and nuclear markers, we also reconstructed the species' phylogenetic relationship with other pinworms infecting primates. Both morphological and molecular results indicated a distinct association between and its host. However, while taxonomy identified this species as a member of the clade and grouped pinworms infecting lemurs and slow lorises together, phylogenetic reconstruction split them, placing within the clade. Our results suggest that may represent a different taxon altogether, and that it is more closely related to pinworm species infecting Old World primates outside Madagascar. (Foitová et al., 2008) n. comb. is also proposed.