390 



390 



mediolongitudinal dark stripe characteristic for S. griseipennis absent 

 in S. b er ge ri; a large oblique black dot (consisting of 2 or 3 fused smaller 

 dots) near the anterior margin, lateral to the median pit; two large blackish 



dots near the curvature of the frontal sutures; 

 two small, asymmetrical, oblique dots anterior 

 to these dots, in the middle; a curved row of 

 3 transverse dashes in the posterior angle of the 

 sclerite; each dash consists of several fused 

 small dots. Dorsal setae of sclerite as in 

 S. griseipennis but darker; lateral anterior - 

 margin and anterior frontal setae light, thin, 

 curved inward, recumbent; other two anterior- 

 margin setae and mediofrontal seta of almost 

 the same length, directed slightly anteriorly, 

 blackish; posterior frontal seta slightly 

 shorter, strong and black. A narrow dark 

 stripe and a dot lateral to the epicranial suture. 

 Short rows and groups of dots (Figure 538) 

 interspersed with small and coarse dots pos- 

 teriorly, on both sides of the head to the occipital 

 foramen. Dorsal setae situated lateral to the 

 frontal sutures, as in S. griseipennis, but 

 darker. A narrow dark stripe, which is more 

 distinct anteriorly along the gular suture; gula 

 grayish brown. Ventral surface without dots 

 anteriorly except two small dots lateral to the 

 gular suture; short rows of 3—5 dots in the 

 middle; dense groups of dark dots and two large, 

 coarse dots near the gular suture near the 

 occipital foramen. Seta 18 short, spinelike, 

 black; a dark spot at its base absent. 



Anteclypeus whitish, with four broad, 

 longitudinal, light yellow stripes. Lab rum 

 (Figure 539) as in S. gr i s e ipenn is, with a 

 narrow membranous margin and a brush of 

 straight, dense hairs near the anterior margin; dorsal sclerite black in the 

 greater part of the middle and posteriorly at the sides; a yellow space in 

 form of light spots present only near the anterior angles; an asymmetrical 

 median pit prominent as a small light dot on the black background; two 

 yellow dots one behind the other near the posterior margin of the sclerite; 

 setae 5 and 6 situated on light dots; longer than the others, brownish black, 

 very thin at the end; seta 3 situated near the anterior margin, not very 

 distinct; setae 2 and 4 situated close together near the median process, 

 small, transparent and situated on light dots. 



Left mandible (Figure 540) as in S. gr i s e ip e nn i s, with little developed 

 upper blade; it does not have 1 intermediate tooth as S. griseipennis 

 but 2 intermediate teeth, one of them smaller than the other; upper blade 

 without teeth, except the apical tooth, lower blade with 3 teeth; chetoids in 

 median depression shining, light yellow. Right mandible with 2 large 

 apical teeth; upper blade also with a small tooth and lower blade with 2 teeth; 



FIGURE 538. Stenopsyche ber 

 geri Mart. Head, dorsal (after 

 Lepneva and Levanidova) 



436 



