ABSTRACT
Homoneura picta belongs to the Homoneurinae subfamily of Lauxaniidae, and it is widely distributed and common in China. This study reports the newly sequenced mitochondrial genome of H. picta. The sequence is 15,469 bp long and contains 37 genes (13 protein-coding, 22 tRNA, and 2 rRNA genes) and a control region. The overall base composition is 38.4% for A, 37.7% for T, 14.1% for C, and 9.8% for G, with a bias toward A + T (76.1%). Phylogenetic analysis show that Homoneura is a sister genus of Cestrotus. We have successfully sequenced the mitochondrial genome of H. picta, which can be useful in investigating the phylogenetic status of Homoneurinae. Our results provide data for further studies of phylogeny in Diptera.
ABSTRACT
The genus Homoneura comprises over 700 described species in eight known subgenera distributed worldwide and has the highest species richness of Lauxaniidae. Five subgenera and more than 200 species have currently been recorded from China. Despite its high diversity, the monophyly of Homoneura and its subgenera, and the phylogenetic relationships among its subgenera remain to be investigated. One maximum-parsimony tree was generated based on 105 morphological characters scored from 24 species, representing all five subgenera of Homoneura recorded from China. The results did not support the monophyly of the genus Homoneura and subgenus Homoneura. The subgenus Chaetohomoneura is a sister to subgenus Neohomoneura. The monophyly of the subgenera Euhomoneura and Neohomoneura is supported. Much of the current classification of the genus Homoneura needs a revision before taxonomy can reflect natural groupings.
ABSTRACT
Four species of the genus Luzonomyza Malloch, 1929 from southwest China are described as new to science: Luzonomyzavittifacies Li & Yang, sp. nov., L.serrata Li & Yang, sp. nov., L.honghensis Li & Yang, sp. nov., and L.brevis Li & Yang, sp. nov. A key to Luzonomyza species is also presented.