OATOOALA SPONSA. 129 



In colour the head is of a deep dull red, brighter 

 on the face ; the edge of the crown bordered with 

 black, and edged beneath in the centre with pale 

 ochreous, and on each side, just below this, a black 

 spot. The thoracic segments much suffused with 

 greyish-brown; tubercles and markings rather in- 

 distinct. 



The ground-colour of the body is pale ochreous, 

 pale brownish, or greyish-ochreous ; a large bright 

 pale ochreous patch on the fifth segment, occupying 

 its anterior dorsal surface, and extending a little down 

 each side of it. There is a purplish-brown or grey 

 blotch transversely suffused on the hinder part of the 

 ninth and beginning of the tenth segments, and 

 following on the latter a paler patch. A similar dark 

 blotch on the chief portion anteriorly of the twelfth 

 segment. The dorsal and subdorsal stripes purplish- 

 brown or brownish-grey, with a narrow line of pale 

 ground-colour between them ; the subdorsal stripes 

 have the tubercles placed thereon, and the stripes 

 widen round the bases of the tubercles. There are 

 two similar lateral stripes, the lowest not very dis- 

 tinct, owing to the aggregation of dark atoms along 

 the sides, all the stripes being composed of minute 

 spots. 



Sometimes faint indications occur of greyish trans- 

 verse bands on the sixth, seventh, and eighth segments. 

 Tubercles deep glossy red posteriorly and black an- 

 teriorly, but sometimes all are black except those 

 on the twelfth segment. Spiracles dirty whitish or 

 brownish, margined with dark brown. Filaments 

 pinkish-grey. The ridge of the hump on the ninth 

 segment has generally a very pale blotch of the 

 ground-colour, divided by a narrow transverse black 

 mark between the tubercles. Belly pale greyish with 

 dark red spots. (W. B., 1867; E.M.M., May, 1867, 

 III, 276.) 



VOL. VI. 9 



