Hylomus asper ( Attems, 1937 )

Nguyen, Anh D., Nguyen, Manh-Ha, Nguyen, Thu-Anh T. & Phung, Hong-Luong T., 2019, Review of Dragon Millipedes (Diplopoda, Polydesmida, Paradoxosomatidae) in the Fauna of Vietnam, with Descriptions of Three New Species, Zoological Studies 58 (14), pp. 1-31 : 4

Hylomus asper ( Attems, 1937)

( Figs. 1−2 )

Centrodesmus asper Attems, 1937: 125−126 , fig. 162; Attems 1938: 240−241, figs. 75−78.

Pratinus asper: Jeekel 1964: 63 ; Jeekel 1968: 61.

Desmoxytes aspera: Golovatch & Enghoff 1994: 60 ; Likhitrakarn et al. 2015: 493, figs. 7−8.

Hylomus asper: Jeekel 1980: 658 ; Srisonchai et al. 2018a: 10.

Material examined: 1 male (IEBR-68) Kon Tum Province, Ngoc Linh Mt., primary forest, 1,800 m, 21 March – 9 April 2006, coll. Anh D. Nguyen.

Diagnosis: The species can be recognised by the combination of the following characters: paraterga antler-shaped; metaterga smooth, without traces of setae; the fifth sternum with a prominent, rounded, caudal protuberance between coxae 4; male femora without modifications; epiproct unmodified, without conspicuous setiferous knobs near tip; gonopod femorite long, slightly expanded distad; postfemoral region shortened; solenophore and solenomere extremely short ( Fig. 2 ).

Previous records: Da Nang Province (Ba Na National Park; Hai Van pass); Ninh Thuan Province (Phan Rang) ( Attems 1937 1938).

Distribution: Southern part of central Vietnam.

Figures

Fig. 1. Distribution of Hylomus species in mainland Vietnam. 1: Hoang Lien National Park (Sa Pa, Lao Cai Province); 2: Nam Xay Commune (Van Ban District, Lao Cai Province); 3: Duc Xuan Commune (Bac Quang District, Ha Giang Province); 4: Xuan Son National Park (Phu Tho Province); 5: Tam Dao (Vinh Phuc Province); 6: Cuc Phuong National Park (Ninh Binh Province); 7: Phong Nha – Ke Bang National Park (Quang Binh Province); 8: Lien Chieu District (Da Nang Province); 9: Ba Na National Park (Da Nang Province); 10: Lo Xo Pass (Kon Tum Province); 11: Ngoc Linh Mt. (Kon Tum Province); 12: Kon Chu Rang Natural Reserve (Gia Lai Province); 13: Buon Ho District (Dak Lak Province); 14: Hon Ba Mt. (Khanh Hoa Province); 15: Phan Rang (Ninh Thuan Province); 16: Cat Tien National Park (Dong Nai Province).

Fig. 2. Hylomus asper (Attems, 1937) from Ngoc Linh Mt. Right gonopod, lateral view (A), mesal view (B).