margin of sclerite broad in the middle, narrower toward the posterior angle; 

 lateral margin with a dark stripe. Anterior -angle seta /s as long as width 

 of head, longer than the anterior-margin setae; seta 1 of the 5 secondary 

 anterior-angle setae, which are present from the 2nd stage, strong and 

 spinelike, situated between the anterior -angle seta and the anterior angle 

 of the sclerite; one of the 4 setae situated medial to the primary setae, much 

 longer than the other three setae; there are also small and thin secondary 

 setae near the anterior margin, which appear in the 3rd, 4th and 5th stage; 

 slightly posterior to the middle of the sclerite, there is a transverse row of 

 4 primary setae, 2 of which are long and 2 short; 2 secondary surface setae 

 lateral to the primary seta; the lateral seta of this group spinelike; the 

 secondary setae, which appear latest, occupy the whole anterior part of the 

 sclerite and are light and small. The anterior -angle, anterior -margin and 

 medioanal setae on the dorsum of the meso- and metathorax larger than the 

 others. 



370. 



FIGURES 498-506. Wormaldia o c c i p i t a 1 i s Pict. (after Nielsen): 



498 — pleuron and base of coxa of prothorax (A), mesothorax (B); 499 — anterior 

 distodorsal seta of forecoxa; 500 — right midleg, posterior; 501 — claw of mid- 

 leg of 1st stage (A) and 5th stage (B); 502 — abdominal segments 8 and 9 and 

 anal legs, dorsal; 503 - claw of anal leg, outer view (A) and inner view (B); 

 504 — left mandible of pupa, ventral; 505 — end of body of pupa, dorsal; male 

 pupa (A) and female pupa (B); 506 — tube, dwelling place of larva. 



413 



