SPHINX CONVOLVULI. 25 



flap. The segmental divisions were deeply defined, as 

 were also the intermediate wrinkles, which subdivided 

 each segment of the body above into eight distinct 

 rings, the first ring wider than the others, but none of 

 them extending beyond the spiracles ; the ventral pro- 

 legs full and stout ; the anal pair large and of a squarish 

 form ; the texture of the skin was smooth, but for the 

 most part without gloss. 



The colour of the head was bright ochreous, and 

 shining, the sutures finely outlined with black, and 

 with two black stripes on each lobe down the side 

 of the face ; the general ground colour of the back, 

 belly, and part of the side, was a deep blackish-brown ; 

 the bright ochreous subdorsal stripe was quite perfect 

 on the thoracic segments, but beyond them showed 

 only as a squarish spot on the first ring of each seg- 

 ment until the twelfth, where it faintly continued to 

 the base of the caudal horn ; however, its entire course 

 was indicated plainly enough by a double row of deep 

 brownish-ochreous longitudinal little streaks, showing 

 on the darker ground ; similar streaks of brownish- 

 ochreous covered the rest of the back, but with 

 a regular order and design : thus there were none 

 on the first of the eight subdivisions of each segment, 

 but on the other seven there was a double series con- 

 verging forwards to a point near the second ring, other 

 rows forming a broad bordering to the inconspicuous 

 narrow black dorsal line — this line, indeed, would not 

 be very noticeable, were it not better defined on the 

 first ring of each segment; but it was there well 

 relieved by being placed between two larger and paler 

 double (often confluent) ochreous streaks. The side of 

 each segment, between the subdorsal and spiracular 

 regions, was divided into two triangular portions, the 

 upper having its base on the front of the segment and 

 its apex pointing backwards on the subdorsal stripe, 

 and being altogether of the dark ground colour, the 

 lower triangle having its base on the hinder part of the 

 segment with its apex pointing forwards on the spira- 



