situated before eye; seta 9 situated dorsal to eye near ridgCj shorter than 7, 

 dark, thick; seta 11 small, light, situated behind 9; seta 14 slightly larger 

 than 9, dark; seta 13 thin, short, light; seta 12 similar; seta 15 situated some 

 distance behind 14, thin, moderately long; seta 16 situated near 15, smaller; 

 seta 17 situated slightly before fork, strong, brown. Ventral seta 8 small, 

 light; seta 18 minute. 



Labrum (Figure 642, A) wide, short, with deep median indentation; dorsal 

 sclerite brown, dark brown laterally; posterior -angle sclerites blunt, short, 

 with dark reddish brown, basal spot. Seta 1 in form of large, blunt, light 

 spine; seta 2 thinner; seta 4 similar to 1 but slightly longer and thinner; 

 seta 3 short, light, situated near anterior margin; setae 5 and 6 widely 

 separated, brown, situated lateral to median spot. 



389 



6^2 



643 



FIGURES 642 and 643. Oligoplectrum macula 

 turn Fourc. (after Nielsen): 



642 - labrum (A), left mandible (B), right mandible, 

 lateral (C); 643 - mesonotum. 



487 



