thick, black. Dorsal stripes wide, close to the coronal suture; large 

 light spots near setae 9 and 17; narrow lateral stripes reaching occipital 

 margin; dark dots on and between stripes small, distinct; setae 12 and 14 

 thick, black, of about the same length. Groups of dots posteriorly on each 

 side of the ventral surface. 



Labrum (Figure 82) and setae as in S. p ha 1 a e n o id e s. 



Left mandible (Figure 83) with 3 teeth in addition to apical tooth on 

 dorsal blade, ventral blade with 2 teeth. Right mandible with 2 teeth on 

 dorsal and ventral blades, basal tooth large.- Mandibles with blackish 

 outer setae. 



(54) 



FIGURES 81-87. Semblis atrata Gmel.: 



81 — head, dorsal; 82 — labrum; 83 — left mandible, dorsal; 84 — pronotum; 85 — tibia, 

 tarsus, and claw of foreleg; 86 — sclerite of segment 9; 87 — case of larva. 



Siltala (1904c, Figure 2) shows a mandible of Semblis atrata without teeth. The larva was probably 

 in the premolting stage, when the teeth are indistinct. 



62 



