. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 122 Annals of the South African Museum. following description), whereas they are bipinnate in bipinnatus just as in tigrinus (fig. 18). Onosandrus opacus Brunner v. W. I place the following specimens in this species :— 1 c^, 1 $ {Onosandrus saussurei, det. Peringuey), Kalk Bay, J. H. Power, 1914 ; 2 juv. $?, 1 juv. <^, same locality and collector ; 1 very young c^, Stellenbosch, Barnard, 1913. The last specimen is too immature to be determined with certainty ; it may belong either to this or to an
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 122 Annals of the South African Museum. following description), whereas they are bipinnate in bipinnatus just as in tigrinus (fig. 18). Onosandrus opacus Brunner v. W. I place the following specimens in this species :— 1 c^, 1 $ {Onosandrus saussurei, det. Peringuey), Kalk Bay, J. H. Power, 1914 ; 2 juv. $?, 1 juv. <^, same locality and collector ; 1 very young c^, Stellenbosch, Barnard, 1913. The last specimen is too immature to be determined with certainty ; it may belong either to this or to another closely related species. The others without doubt all belong to the same species, though only the two first-named are mature enough to enable me to give a more detailed description. Their measurements are : Width of head. Length of body. Pron. Fore fern. Hind fem. Hind tib. Ovipos. mm. mm. mm. mm. mm. mm. mm. c^ 5-6 21-0 5-5 6-0 14-5 12-5 ? 5-0 20-5 5-0 5-5 14-5 12-8 11-5 Peringuey's identification of this species as saussurei is without doubt erroneous, for the fastigium verticis is decidedly flattened and even a little excavate on surface ; furthermore, in saussurei the ovipositor is slightly longer than the hind femora, whereas in these specimens before me it is decidedly shorter. According to Brunner's key, I have no doubt in referring them to opacus, and there is nothing in the original description that would be in conflict with this identiflca- tion. It certainly is very short and says nothing on some of the important characters, so that an absolutely certain determination is not possible from it alone. Nevertheless, I think it very probable that the specimens before me be- long to opacus, and I give here a short description of them. Occiput and vertex arched, rather dark brown, with 2 to 3 longitudinal blackish lines and the sides strongly darkened. Fastigium verticis black, with an ovate or piriform outline, slightly wider than the first antennal joint; surface
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