371 



apical teeth on the upper blade; lower blade partly serrated, with 2 small 

 apical teeth and a basal tooth; right mandible with a large apical tooth; 

 upper blade with one tooth; lower blade with one tooth and its serrated 

 part with large apical denticles. Sclerites of maxillolabium light 

 (Figure 497); submentum trapezoidal, with relatively long setae near the 

 anterior angles; stipes narrow, oblique, with a blackish brown longitudinal 

 stripe; both setae of stipes situated on the membranous surface, the lateral 

 seta dark, long and strong; ventrolateral sclerite of palpifer with a long 

 distal seta; galea conical, long, hairs of its "fans" dark; a strong, long, 

 sword-shaped black spine at the end of the galea. First segment of palp 

 shorter than the others; 3rd segment longer; sclerites of all segments of 

 palp ring-shaped; sensillae of distal end of palp of the same form, one- 

 segmented. Mentum large; labial lobe blunt, with very short palps. 



(369) 



FIGURES 494-497. Wormaldia oc c i pi tal i s Pict. (after Nielsen): 



494 - head and prothorax, dorsal (A) and lateral (B); 495 - labrum, dorsal; 496 

 mandibles, dorsal: left mandible (A), distal end of right mandible (B); 497 - 

 maxillolabium (A), right palpifer, galea and palp, dorsal (B). 



Pronotum (Figure 494) lighter than head, with indistinct dots near the 

 median line and laterally, where the dots form circles; black posterior 



5724 



412 



