(Figure 511, B). Frontoclypeus mainly uniformly brown; anterior margin 

 golden brown; 2 brown dots on each side behind median pit, 2 pairs of dots, 

 one behind the other further posteriorly; tentorial pits dark brown; margin 

 slightly dark at base of posterior frontal seta; wedge-shaped pattern with 

 large dots posteriorly; posterior angle broadly light. A light stripe along 

 coronal suture; eyes on a light area, situated behind a brownish area; 

 antenna with dark sensilla. Dark specimens have indistinct dorsal stripes 

 some distance from epicranial suture and with 2 transverse rows of dots in 

 middle; a straight row of 5—6 small dots before seta 14; 2 large reddish 

 brown dots before setae 15 and 17; large, distinct dots lateral to light stripe 

 at coronal suture; sides with short longitudinal rows of large, dense dots 

 behind eye. Ventral surface darker than dorsal, chestnut brown; yellowish 

 brown, with large dots near occipital foramen. Gula narrow, chestnut brown, 

 pointed posteriorly, with a narrow, dark stripe at gular margin of sclerites. 

 Anterior-margin setae, median and intermediate, dark brown, moderately 

 long, lateral anterior-margin seta short, light; anterior frontal seta the 

 same, procumbent, middle frontal seta brown, long, slightly thinner and longer 

 than anterior-margin setae; posterior frontal seta short, very thin. Seta 7 

 strong, moderately long, situated before antenna; setae 9 and 14 long, dark 

 brown, about the same length; seta 10 small, light; seta 11 thin, moderately 

 long; seta 12 the same, thicker; seta 13 small; seta 15 thin, very long, 

 almost as long as 14; seta 16 short, light, procumbent; seta 17 thin, like 15, 

 as long as middle frontal seta; ventral seta 8 small, thin, seta 18 very small. 



Dorsal sclerite of labrum with deep median indentation, anterior margin 

 broadly membranous, convex inside indentation, in form of lobes laterally, 

 with numerous light hairs; posterior-angle sclerites thin, curved, reddish 

 brown at end; dorsal sclerite brown, with a dark dot behind median pit, near 

 posterior margin and in each half with dark chestnut brown spots with dark, 

 large setae 5 and 6, seta 5 slightly larger than 6; seta 1 situated lateral to 

 indentation in form of a light, thick spine; seta 2 situated on membrane 

 near margin, thick, spiniform, light; seta 3 also light, larger, situated at 

 anterior angle; seta 4 situated on sclerite some distance from indentation, 

 light, smialler than 3. 



Mandibles oblong, black, reddish at apex; left mandible with 3 large teeth 

 of almost equal size distally, middle tooth slightly wider, dorsal blade with 

 2 rounded, indistinct tooth-shaped processes further dorsally; ventral 

 blade with a small, distal tooth; subventral tooth of right mandible larger 

 than others; dorsal blade with 3 small teeth and a tooth-shaped process; 

 ventral blade with an indistinct process; brush situated near dorsal margin 

 consisting of thin, grayish chaetoids; lateral setae situated basally, thin, 

 small, dorsal seta dark; ventral light, shorter. 

 290 Maxillolabium with light, whitish membranous part. Sclerites of cardo 

 reddish brown; median margin and lateral stripe black; lateral seta light, 

 thin, second seta brownish, thick, both small. Lateral sclerites of submentum 

 reddish brown, triangular; median sclerites in form of small oblique 

 brownish plates with strong, moderately long seta laterally at anterior 

 margin. Stipes yellowish brown, with reddish brown margin posteriorly; 

 lateral seta light brown, distal seta brown, half as long. Palpifer brown, 

 blackish laterally; median apical seta large, brown; basal seta small, 

 light. Maxillary palps short, slightly longer than palpifer; galea short. 



363 



