RESUMO
Three new assassin bug species of the genus Biasticus Stål, 1867 are recognized in Vietnam based on morphological examination, morphometric and molecular phylogenetic analyses, and described as Biasticustaynguyenensis Ha, Truong & Ishikawa, sp. nov., Biasticusgriseocapillus Ha, Truong & Ishikawa, sp. nov., and Biasticusluteicollis Ha, Truong & Ishikawa, sp. nov. The conspecific male and female associations of the new species were confirmed by phylogenetic analyses and DNA barcoding of the mitochondrial 16S rDNA and COI genes. All three new species are presently restricted to the Central Highlands, Vietnam (Kon Chu Rang NR, Gia Lai Province, and Chu Yang Sin NP, Dak Lak Province).
RESUMO
[This corrects the article DOI: 10.3897/zookeys.1118.83156.].
RESUMO
Kissing-bugs (Triatominae) are being increasingly reported as a biting nuisance in SE Asia, with severe bite reactions sometimes leading to anaphylactic shock. In addition, they pose a risk for vector-borne transmission of trypanosomiasis, with potential diagnostic difficulties due to the range of trypanosome species in the region. Here, we review available information about Triatominae in Asia, and present additional comparisons using morphometry, cytogenetics, and new DNA sequence data, to clarify their relationship with each other and with the better known American species. We deduce that all Asian Triatominae have probably derived from forms originally spread during the 15-18th centuries on sailing ships, from the area that now forms the southern USA.
Assuntos
Ecologia , Insetos Vetores/genética , Insetos Vetores/parasitologia , Triatoma/genética , Triatoma/parasitologia , Tripanossomíase/parasitologia , Tripanossomíase/transmissão , América/epidemiologia , Animais , Ásia Oriental/epidemiologia , Variação Genética , Humanos , Filogenia , Tripanossomíase/epidemiologiaRESUMO
Flexitibia, a new genus, in the division Euagorasaria of the assassin bug subfamily Harpactorinae from Yunnan Province of China is described. The type species, Flexitibia orientalis sp. nov., is described and illustrated. A key to the closely related genera is provided. The type specimens are kept in the Entomological Museum of China Agricultural University, Beijing.
Assuntos
Biodiversidade , Reduviidae/classificação , Animais , China , Membro Anterior/anatomia & histologia , Masculino , Reduviidae/anatomia & histologiaRESUMO
The complete sequence of the mitochondrial (mt) genome of the assassin bug, Sirtheneaflavipes (Stål), was determined. The circular genome is 15, 961 bp long and contains a standard gene complement, i.e., the large and small ribosomal RNA (rRNA) subunits, 22 transfer RNA (tRNA) genes, 13 protein-coding genes (PCGs), and the 1, 295 bp control region. The nucleotide composition of S. flavipes mt genome is 71.8% AT-rich, reflected in the predominance of AT-rich codons in PCGs. Compared with the other three reduviid species available in complete mt genomes, the genome architecture as well as the nucleotide composition, codon usage, and amino acid composition reflected high similarity. All PCGs use standard initiation codons (ATN); however, ND4L and ND1 started with GTG. Canonical TAA and TAG termination codons are found in nine PCGs, the remaining four (COIII, ND3, ND5, and ND]) have incomplete termination codons. All tRNAs have the typical clover-leaf structure, except the dihydrouridine (DHU) arm of tRNASer(AGN) forms a simple loop as seen in many other metazoans. Secondary structure models of the ribosomal RNA genes of S. flavipes are presented and are similar to those proposed for other insects. The structure of rrnL is more conservative than that of rrnS among sequenced assassin bugs. The monophyly of Reduviidae is highly supported by Bayesian inferences, and the Peiratinae presents a sister position to the Triatominae+ (Salyavatinae + Harpactorinae).
