Dorypetalum trispiculigerum Verhoeff, 1900

Stoev, Pavel & Enghoff, Henrik, 2006, A review of the millipede genus Dorypetalum Verhoeff, 1900 (Diplopoda: Callipodida: Dorypetalidae), Zootaxa 1254, pp. 29-43 : 38-40

Dorypetalum trispiculigerum Verhoeff, 1900

Figs 29–33

Dorypetalum degenerans trispiculigerum Verhoeff, 1900 a, p. 64, fig. 27 Remarks

This species was initially described as a subspecies of degenerans ( Verhoeff 1900a) , but Strasser (1974) gave it full species rank, and provided new illustrations of gonopods and male pregonopodal legs. D. trispiculigerum is so far known only from the Greek island of Kerkira (Corfu) and the neighbouring continental part of the Greek province Epirus ( Strasser 1976) and Albania ( Mauriès et al. 1997). Strasser observed certain variability in the gonopod structures in some of the samples from the continent, and taking his remarks into account, Mauriès et al. (1997) raised the question whether bosniense and trispiculigerum are indeed conspecific. However, it is also plausible that Strasser’s (1976) material from Anemorachi (Fig. 33) belongs to another, closely related species. Only additional material can answer the question. Although nice drawings of trispiculigerum gonopods were made available by Strasser (1974), we here present additional illustrations of male gonopods taken from an original slide of Verhoeff of a nontypical specimen from Corfu (Fig. 32).

PLATE 5. Dorypetalum bulgaricum : Figs 23–24: gonopod, lateral and mesal views, respectively (re­worked with new symbols from Strasser 1966, figs 21 & 22). Dorypetalum degenerans : Figs 25–26: gonopod, lateral and mesal views, respectively (re­worked with new symbols from Hoffman & Lohmander 1964, figs 8 & 9). Dorypetalum marmaratum : Figs 27–28: gonopod, lateral and mesal views, respectively (re­worked with new symbols from Hoffman & Lohmander 1964, figs 4 & 5). Abbreviations, see text.

PLATE 6. Dorypetalum trispiculigerum : Figs 29­31: male legs 4, 5, 7, respectively, anterior views (re­worked with new symbols from Strasser 1974, figs 49­51). Fig. 32: nontypic male from Corfu (ZMB, prep. No. 822): gonopod, lateral view; Fig. 33: gonopod, mesal view (re­worked with new symbols from Strasser 1976, fig. 31). Abbreviations, see text. Scale bar: 1 mm.