Notes on the leaf insects of the genus Phyllium of Sumatra and Java, Indonesia, including the description of two new species with purple coxae (Phasmatodea, Phylliidae)

ZooKeys
Royce T CummingSven Bradler

Abstract

Within the last two years, the leaf insects of the genus Phyllium of both the islands of Java and Sumatra have been reviewed extensively based on morphological observations. However, cryptic species which cannot be differentiated morphologically may be present among the various populations. Since it has frequently been demonstrated that analyses based on molecular data can bring clarity in such cases, we conducted a phylogenetic analysis based on three genes (nuclear gene 28S and mitochondrial genes COI and 16S) from the Phyllium species of these islands. The results show distinct molecular divergence for several populations and suggest the presence of two new cryptic species, morphologically inseparable from Phyllium hausleithneri Brock, 1999. From Sumatra, the population originally thought to be a range expansion for Phyllium hausleithneri, is now here described as Phyllium nisussp. nov., with the only consistent morphological difference being the color of the eggs between the two populations (dark brown in P. hausleithneri and tan in P. nisussp. nov.). Further, an additional population with purple coxae from Java was morphologically examined and found to have no consistent features to separate it morphologically from the oth...Continue Reading

References

Jan 2, 2007·Proceedings of the National Academy of Sciences of the United States of America·Sonja WedmannJes Rust
Sep 12, 2007·Bioinformatics·M A LarkinD G Higgins
Jan 9, 2009·Proceedings. Biological Sciences·Thomas R BuckleySven Bradler
Apr 27, 2010·Molecular Phylogenetics and Evolution·Patrick Kück, Karen Meusemann
Oct 7, 2014·Zootaxa·Thomas De Van Kamp, Frank H Hennemann
Nov 6, 2014·Molecular Biology and Evolution·Lam-Tung NguyenBui Quang Minh
Sep 18, 2015·BMC Evolutionary Biology·Sven BradlerThomas R Buckley
May 10, 2017·Nature Methods·Subha KalyaanamoorthyLars S Jermiin
Oct 28, 2017·Molecular Biology and Evolution·Diep Thi HoangLe Sy Vinh

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