Removed or damaged placoid
scales of nurse (Ginglymostoma cirratum) and leopard (Triakis semifasciata) sharks have been shown to be rapidly replaced (Reif 1978), possibly because of their vital function in protecting the fish against the external environment (Quilhac et al.
The closely-placed scutellar placoid
sensilla, and the shape of the stigmal vein, strongly suggest it is a member of the Encarsia strenua (Silvestri) group, all species of which are parasitoids of Aleyrodidae.
5 mm) with scattered, small setae (1= 10 [micro]m); placoid
sensilla close to the insertion of the mandibles.
sensilla closely placed, separated by distance about one diameter of sensillum.
Martin exactly matched the original description of Murray (1907); in the absence of eggs the species can be distinguished from other Macrobiotus species with similar placoids
and claws by the presence of conspicuous orange to reddish brown inclusions.
Paratypes and other material examined: 6 paratypes and 7 eggs, same data as holotype (accession numbers 9340, 9343, 9346, 9349); 2 additional eggs, 109 additional specimens, same collection data as holotype; 1 paratype and 1 egg, same collection data as holotype, deposited in the Natal Museum, Pietermaritzburg, South Africa (accession numbers 9347, 9348); 1 cluster of three connected eggs found; 1 embryonated egg found with buccal apparatus and placoids