both mandibles with one tooth and 2 indistinct tooth-shaped processes on 

 dorsal blade, in addition to wide median tooth; tooth-shaped processes 

 larger on right mandible than on left; ventral blade with 2 teeth; brush 

 tuftlike, situated near dorsal margin; 2 additional short brushes in basal 

 part of left mandible in median depression. Lateral setae situated basally, 

 short, of equal length. 



Pregula short, transversely elliptical, fused with gula. Sclerites of 

 ^"^ cardo mainly black; both setae small, thin. Submentum with 2 yellowish 

 brown, transverse stripes, divided by a narrow median space; setae situated 

 on membrane, moderately long, brown. Stipes light brown, with slightly 

 concave, anterior margin; lateral seta moderately long, situated on 

 membrane; median seta shorter, situated on margin. Lateral ventral 

 sclerite of palpifer yellowish brown, moderately long (Figure 864, D); apical 

 ventral seta situated on membrane, short, strong, basal seta small, light, 

 situated in a depression at anterior margin. Galea with a dark sclerite 

 ventrally; 2 of sensillae very large; proximal segment of maxillary palp 

 sclerotized only ventrally and laterally, sclerites of 3 following segments 

 ringlike, terminal segment shorter and narrower than the other two. 

 Mentum semicircular; anterior margin slightly concave; ventral rods 

 pointed, with small, light, subapical seta. Palpiger in form of a curved 

 sclerite with pointed anterior end; labial palp with brownish sclerite, with 

 2 large sensillae; labial lobe wide; opening of silk glands surrounded by 

 small spinules. 



Pronotum (Figure 865, A), chestnut brown; anterior margin concave, 

 lateral margin convex, anterior angle pointed, beaklike; posterior part with 

 dark and light spots in middle of each half; posterior margin light 

 yellowish; posterior angles produced, curved ventrally; 2 large, dark dots 

 between posterior angle and other part of posterior margin; 34—37 setae 

 at anterior margin and angle; about 200 setae on surface. 



Mesonotum (Figure 865, B) divided in 2 parts in each half; a larger, 

 median and smaller, lateral part; median sclerite light, thin, brownish 

 yellow, with dark brown dots and dark, posterior margin; lateral sclerite 

 brown, with a large dot in anterior part. Setae: 55—69 in anterior angle, 

 64—77 in anterior part of surface, 27—39 in posterior part. 



Metanotum (Figure 865) shorter than mesonotum, with a deep, curved, 

 transverse fold; a small, yellowish, sclerotized dot on each side before fold; 

 anterior angles with 25—29 setae; anterior part with 40—46 setae, posterior 

 part with 25 — 32 setae. Number of setae according to Nielsen. 



Propleuron lighter than pronotum; episternum much larger than epimeron, 

 with distinct, large dots and blackish margins; epimeron with black, posterior 

 margin, a group of 8—10 setae near distal margin, anterior primary seta 

 longer and thicker than the others; trochantin large, distinctly separated 

 from episternum, with large dark spot laterally, distal anterior-angle 

 process pointed; 13— 16 sparse, thin setae at anterior margin and on surface, 

 one of them primary. Pleural area of mesothorax and metathorax weakly 

 sclerotized, sclerotized part restricted to the distal area near pleural suture 

 which forms a black spot and stripe; mesopleuron longer than metapleuron; 

 midlegs inserted more ventrally than hind legs. Setae: mesepisternum 

 1—3, mesepimeron 5—7; metepisternum 5—8, metepimeron 5—9. 



Legs as in Figure 866; hind legs longer than others, about 1/3 of length 

 of larva; ratio of length of legs 71:100:126. 



675 



