CEPHONODES. 249 



labrum, kidney-shaped ; eyes 1 to 4 in a slight curve, 6 in 

 line with 3 and 4, all about one eye-diameter apart ; the line 

 from 5 to 4 at right angles to the line 4 to 6, and the distance 

 from 5 to 4 equal to that from 4 to 6. Surface of head dull, 

 covered with small, low, glass}^ tubercles. Body tapering 

 gently from segment 7 frontad and posteriad to 12, 2 of greater 

 diameter than head, and with a raised saddle-shaped 

 collar covering most of the upper half of the segment. Horn 

 long, down-curved, stout at base and tapering evenly to a 

 sharp point, rising from a conical tumidity. Surface of body 

 smooth and shining ; saddle on 2 set closely with low, shining- 

 tubercles. Horn polished, set with small tubercles : clasper- 

 faces with similar tubercles to the saddle ; the supra- and sub- 

 spiracular hairs visible. 



Coloration very variable. In the green form (PI. Ill, fig. 9) 

 head and tubercles glaucous -green; labrum and ligula the same ; 

 basal segment of antenna glassy-green, second segment reddish, 

 third pink ; mandible green, with the tip broadly reddish- 

 brown. Body glaucous-green above the subdorsal stripe, 

 grass-green below it ; saddle of segment 2 green, with yellow 

 tubercles ; an ill-defined purplish dorsal stripe from segment 3 

 to base of horn ; a sharply defined subdorsal stripe, white 

 on 3 to 11, yellow on 12, where it becomes broader and curves 

 upwards to base of horn ; this stripe edged very narrowly 

 above with pink on 10 and 1 1 ; just below it a black comma or 

 inverted pear-shaped patch, which may be continued as a nar- 

 row band to below the spiracle ; an irregular- shaped purple 

 patch from above spiracle of 12 to point of clasper ; sometimes 

 a white subspiracular stripe, edged above with black in the 

 middle of each segment, on segments 6 to 10, and black dots 

 where the white subdorsal stripe crosses the junctions of the 

 secondary rings ; venter purple. Horn yellowish-green, tip 

 black, tubercles on upper surface black, on under surface 

 yellowish-green ; true legs pink ; prolegs with bases dark 

 purple, shanks pink. Spiracles oval, flush, pure white with 

 a broad orange band across middle, the whole with a green 

 or orange rim. 



In the dark- coloured form (PI. Ill, fig. 8) head brown or pale 

 orange ; segment 2, anal flap and claspers ochreous-orange ; 

 rest of body smoky-black ; a sharply defined dorsal stripe, black 

 or bluish ; subdorsal stripe white or pink, with a broad black 

 stripe below it and narrow black bands along the margins of 

 the secondary rings ; horn black ; spiracles lying on oval 

 orange patches. Length 60 mm. : breadth 8 mm. ; horn 

 8-5 mm. 



Pupa. — Head proximally round, distally conical ; segments 

 increase gradually in diameter from head to middle of pupa, 

 then decrease more rapidly ; dorsal line slightly convex, ventral 



