Abstract
Southeastern Asia has been postulated as probably the original sites of genus Haemaphysalis, where numerous structurally advanced haemaphysalids now occur. Because of its phylogenetic and biological interest, we report the discovery of a structurally primitive new species Haemaphysalis (A.) kolonini belonging to subgenus Alloceraea from Baoshan and Weixi cities, Yunnan province, southwestern China. Both the morphological and phylogenic characteristics of the species support congruently to erect Hae. (A.) kolonini as a new species. The male and female adults of Haemaphysalis (A.) kolonini are respectively described and illustrated. Taxonomic discussion and keys to Alloceraea species in China are also provided to be able to distinguish species that are close morphologically.
Financial support. This work was supported by the Ministry of Science and Technology of P. R. China (grant number 2006FY120100) and National Critical Project for Science and Technology on Infectious Disease of P. R. China (grant number 2017ZX10303404), Critical Program of State Key Laboratory of Pathogen and Biosecurity of China (SKLPBS1504), Natural Science Foundation of China (81360413), Program of Cultivation of Technological Innovative Talents of Yunnan Province (2014HB093).
Conflict of interest statement. Authors declare no conflict of interests.
Acknowledgments
We are grateful to Prof. Chen Jun, IZCAS, for providing type species and constructive advices of the manuscript.
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Suplementary

Hae. (A.) kolonini sp. nov. (male, holotype) in dorsal view

Hae. (A.) kolonini sp. nov. (male, holotype) in ventral view

Basis capitulum of Hae. (A.) kolonini sp. nov. (male, holotype) in dorsal view

Basis capitulum of Hae. (A.) kolonini sp. nov. (male, holotype) in ventral view. Denticle formula 3|3 and no spurs on palpal article II and III

Scutum of Hae. (A.) kolonini sp. nov. (male, holotype) Festoon numbered 11

Anus of Hae. (A.) kolonini sp. nov. (male, holotype). Ventral punctuations contiguous to form a pair of patches under the anal groove

Genital aperture of Hae. (A.) kolonini sp. nov. (male, holotype)

Spiracular plate of Hae. (A.) kolonini sp. nov. (male, holotype)

Coxa I-IV of Hae. (A.) kolonini sp. nov. (male, holotype)

Tarsus I and pulvilli of Hae. (A.) kolonini sp. nov. (male, holotype)

Hae. (A.) kolonini sp. nov. (female, paratype) in dorsal view. Festoon numbered 11 and lateral groove reach the 4/5 of scutum

Hae. (A.) kolonini sp. nov. (female, paratype) in ventral view

Basis capitulum of Hae. (A.) kolonini sp. nov. (female, paratype) in dorsal view. Denticle formula 3|3 and no spurs on palpal article II and III

Basis capitulum of Hae. (A.) kolonini sp. nov. (female, paratype) in ventral view

Scutum of Hae. (A.) kolonini sp. nov. (female, paratype)

Genital aperture of Hae. (A.) kolonini sp. nov. (female, paratype)

Spiracular plate of Hae. (A.) kolonini sp. nov. (female, paratype)

Tarsus I and pulvilli of Hae. (A.) kolonini sp. nov. (female, paratype)
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