Dorsal sclerite of the labrum (Figure 282) brownish yellow; seta 1 on 

 the membranous margin transparent and curved; margin of sclerite with 

 the short and straight seta 4 in the middle, posteriorly; setae 2 and 5 

 situated anteriorly on the margin of the sclerite, brownish, relatively large; 

 seta 6 shorter and dark; seta 3 light. 



Mandibles (Figure 283) short, blackish brown, massive; left mandible 

 with strongly curved upper blade, with a deep median depression; upper 

 blade with a blunt subapical tooth; lower serrated section with small lateral 

 processes. Upper blade of right mandible distally with a large apical tooth; 

 basal tooth of lower blade blunt and broad. Outer setae situated nearby; 

 one of them straight, the second shorter and curved to the surface. 



263 Pregula fused with gula, brownish; submentum lighter, trapezoidal, with 

 a longer anterior margin; posterior angles rounded; seta near the lateral 

 margin in the middle of the sclerite small and light; cardo brownish, with 

 a small seta; stipes broad and yellow; the basal seta of the setae near the 

 margin brown and apical seta shorter and lighter, situated near the middle 

 of the sclerite. Palpiger and galea yellowish and thin; distal seta of 

 palpiger situated on a membrane, longer than the galea; mediobasal seta 

 small and light, situated near the posterior angle of the sclerite; maxillary 

 palps narrow, brownish; 2nd segment is much longer than the others; 



3rd segment small, 4th long. Mentum brownish yellow, with a small 

 asymmetrical, median notch on the anterior margin; median suture absent;* 

 the ventral sclerites form small yellowish dots; their setae are light, 

 relatively long, with a very thin end; labial palpiger in form of a wide 

 bracket; palp brownish. 



Pronotum (Figure 281 ) yellowish, without pattern; posterior margin 

 continuous, black, broader in the middle of each half, forming broad 

 processes without light spots or interruptions; the projecting posterior 

 angles and the lateral margins mainly black; anterior third of lateral 

 margin and anterior angle with a narrow brownish border. Light notch near 

 the anterior angle with 3 dark brown, thin setae; primary seta longer than 

 secondary setae; anterior angles with 2 or 3 short setae laterally; a long 

 seta which is almost as long as the angle setae medial to the notch of the 

 anterior angle; small light setae lateral to this long seta. Each half of 

 the sclerite with 2 dark, strong, long setae and 2 small thin setae; posterior 

 dark lateral seta situated near the black margin, anterior seta situated 

 slightly away from the margin of the sclerite. 



264 Anterior -angle and medioanal setae of meso- and metanotum and 



of tergites of the abdominal segments dark and long; anterior -margin seta 

 long also on the mesonotum; it is small on the metanotum and on the 

 abdominal segments; secondary anterior -angle seta small and thin; the 

 thin intermediate seta and the lateral seta stand near the medioanal seta, 

 the former much longer than the lateral seta. 



Sclerites of propleuron dark; the region of the pleural suture broad 

 and black; epimeral seta situated on a membrane near the margin of the 

 sclerite; trochantin mainly dark laterally, light brown at the base; distal 

 seta black and setules light. Rodlike pleural sclerites of meso- and 

 metathorax black or blackish brown; episternal seta situated on the 

 sclerite strong, dark and large; epimeral seta situated on a membrane, 

 thin and small. 



" The continuous surface of the sclerite is clearly visible under high magnification. 



282 



