(519) 



FIGURES 729 and 730. Macronema radia tu m McL.: 

 729 - full-grown larva; 730 - head, dorsal. 



Lab rum (Figure 732) broad; membranous, anterior margin well marked; 

 dorsal sclerite golden brown, with a whitish, pointed median process which 

 almost reaches membranous anterior margin; posterior-angle sclerites in the 

 form of narrow, reddish brown rods. Anterior third of sclerite with large 

 teat -shaped, blunt covering setae replaced by setae of different form in the 

 middle near the margin; these setae are light, pointed, straight spines 

 which form a tuft of dense, stronger, spear-shaped chetae at the apex of the 

 process; small, thick, hooked spinules near base of posterior-angle sclerite. 



593 



