Sinocallipus deharvengi Stoev & Enghoff, 2011

Nguyen, Anh D., Stoev, Pavel & Vu, Tam T. T., 2025, Integrative data reveal a new millipede species of Sinocallipus Zhang, 1993 (Callipodida, Sinocallipodidae) from Vietnam, with notes on its phylogeny, Zoosystematics and Evolution 101 (1), pp. 69-80 : 69-80

Sinocallipus deharvengi Stoev & Enghoff, 2011

Figs 2 A – D , 10

Material examined.

Vietnam • 2 ♂♂, 1 ♀; Quang Binh Province, Bo Trach District, Tu Lan Cave ; 17.7729°N, 106.0901°E, 16–21 January 2023; TV Le leg.; IEBR-Myr 962 • 3 ♂♂, 2 ♀♀; Quang Binh Province, Bo Trach District, Tu Lan Cave ; 17.7729°N, 106.0901°E; 16–21 January 2023; TV Le leg.; IEBR-Myr 1015 .

Diagnosis.

The species is morphologically similar to Sinocallipus catba from which it can be distinguished by its larger body, a gonocoxal process g that is more than 3 × the length of process k, a differently shaped trochanteral process of leg 9 in males, and paraprocts divided into two, nearly equal-sized sclerites ( Stoev and Enghoff 2011).

Remarks.

The species was described originally from three caves situated in the region of Phong Nha and Cha Noi communes in Quang Binh Province. It is now reported from another cave (Tu Lan), located approximately 15 km northeast from the other localities at Cha Noi.

Figures

Figure 2. Sinocallipus deharvengi Stoev & Enghoff, 2011. ♂, IEBR-Myr 962 A. Telson, ventral view; B. Leg 9, anterior view; C, D. Gonopods, anterior (C) and posterior (D) views. Abbreviations: pa = paraprocts; hy = hypoproct; h = trochanteral process h; z = trochanteral process z; g = coxal process g; k = coxal process k; st = sternite; cx = coxite; pref = prefemorite; fe = femorite; ca = cannula. Scale bars: 1 mm for (A); 0.5 mm for (B – D).

Figure 10. Distribution of Sinocallipus Zhang, 1993 in Vietnam.