MACROGLOSSUM. 361 



black. 2nd instar. Head pale orange, body darker olive-green, 

 segments 2 and 11 to 14 paler ; a greyish dorso-lateral stripe 

 from 3 to base of horn. 3rd instar. Horn shining, set with 

 strong, pointed, setiferous tubercles ; head degraded orange ; 

 body dark olive-green above, pale olive-green below ; a broad, 

 well-defined dorso-lateral stripe running from segment 2 to 

 base of horn ; segment 14 yellowish. Uh instar. Surface dull 

 except for the horn, true legs and prolegs, which are shining, 

 horn tuberculate as in 3rd instar ; head and body smoky- 

 black, dotted with yellow below the dorso-lateral stripe ; 

 this stripe broad, yellowish-green ; horn black. 



5th instar. Head small, round ; true clypeus with apex acute, 

 half length of head ; false clypeus forming a narrowly rounded 

 arch over apex of true clypeus, apex reaching to two-thirds 

 length of head ; ligula kidney- shaped ; cutting-edge of mandible 

 shallowly toothed ; eyes with 1 to 4 in a curve, 6 in line with 3 

 and 4, all equidistant ; 5 forming an equilateral triangle with 4 

 and 6. Surface of head dull, minutely shagreened and covered 

 with low, shining tubercles ; ligula shining. Body dull and 

 smooth, covered with minute hairs. Horn straight, rising 

 from a fleshy cone ; distal two-thirds of anal flap, clasper 

 faces, and legs and prolegs shining. 



Colour as variable as in the case of gyrans, belis and some 

 other species. In one form (PI. XI, fig. 3) the head dull black, 

 the tubercles whitish ; labrum, ligula and antenna pale yellow ; 

 mandible pale yellow, tip blackish. Segment 2 dull black ; 3 

 to 11 smoky-black, dotted with yellow especially on dorsum ; 

 an obscure black dorsal stripe on 3 to 11, expanding into black 

 patches near the front margins of 8 and 9 ; an obscure dorso- 

 lateral stripe, edged below by black, on 3 to 11 ; anal segments 

 pale brownish-pink suffused with fuscous laterally. Horn, 

 distal two -thirds of anal flap, clasper sides and true legs black ; 

 a black ventral stripe. Spiracles rather large, oval, flush, 

 rich orange tipped with whitish at the upper and lower 

 ends. 



There is also a green form (PI. XI, fig. 4) in which the head 

 is green dotted with yellow, with a white stripe separating 

 face from cheek ; body green dotted with yellow ; a pale 

 indigo dorsal stripe from segment 3 to base of horn ; a narrow 

 dorso-lateral stripe from 2 to base of horn, yellowish on 2 to 4 

 and white to base of horn, broader on 10 to 12 ; a yellow 

 subspiracular stripe from 2 to tip of anal flap ; horn green with 

 the tip and tubercles black ; true legs shining black. Spiracles 

 orange, the ends shortly yellow. 



In another form the head is pinkish-yellow, mouth-parts 

 green ; body delicate pink dotted with yellow ; dorsal stripe 

 pale blue ; dorso-lateral stripe yellowish on segments 2 to 4, 

 then white ; horn orange, tubercles and tip black ; 14 and 



