FIGURE 4 in Two new species of penicillate millipedes (Diplopoda, Polyxenidae) from Phu Quoc Island in southern Vietnam

FIGURE 4. Holotype Unixenus intragramineus sp. n., A. Head capsule with 8 ommatidia on each side, the posterior vertex trichome groups (pv) and 3 sockets of trichobothria (trichobothria a, b and c). B. Collum (Co) and lateral protuberances (Lp) showing the arrangement of trichome sockets; C. Tergite 2 (T2); D. Tergite 10 – the last tergite; E. trichobothria a, b and c (right hand side) (trichobothrium a, posterior position, trichobothrium b, lateral position and trichobothrium c, anterior position); F. Gnathochilarium:the lateral palp (LP) with13 sensilla andmedial palp (MP) with22 sensilla; G. Labrum showing the pointed spherical papillae on its surface and the structures4 + 4 lamellae.