OF WASHINGTON, VOLUME XI, 1909. 157 



LARVA. 



Stage IV. Shape and structure of Euclea delphinii Boisduval. 

 Horns thick, the subdorsals of joints 3-5 moderate ; of 6 adnate to that 

 of 5, small ; of 7 and 9 adnate to 8, which is nearly as large as the 

 horns of 3-5; of 10 adnate to 11; of 11-12 large; of 13 rather small. 

 Anterior subdorsals stained bright orange red, red in the tips and bases 

 of the subdorsals of joints 3-5, 8, 11-12; a square spot between 6-7 

 and another 9-10; a dorsal line the whole length, red; dorsum else 

 tilled in with dark blue. Sides leaf-green ; lateral horns green. De- 

 pressed spaces ( 1 ) rounded, visible. Skin clear-granular. The spines 

 arc pale and weak. Length, 6.0 mm. 



Stage /'. As before. Cores of the subdorsal horns bright red; 

 subdorsal ridge white, the color broken on joints 6-7 and 9-10, forming 

 elliptical spaces around the horns, showing distinctly on 7-9. Upper 

 half of lateral space yellow-green; the rest, including the lateral horns, 

 clear green. Dorsum all purple filled ; a narrow dorsal red line. De- 

 pressed spaces (1) round, yellowish. Length, 6.0 to 7 mm. 



Stage VI. As before. Subdorsal horns light red on joints 3-5, 8, 

 11-12, in distinct, white-edged, elliptical islands. Dorsum dull purple- 

 tilled, with pale red dorsal line. 



This larva died. Another specimen sent by Mr. Knab was 

 the same, except that the horns and dorsal line were orange 

 yellow instead of red and the markings not white-edged. 

 Dorsum pale greenish, purple-filled. Length 7 to 9 mm. 



Stage VII. Horns orange yellow, the dorsal space purple-filled; 

 dorsal line yellow, reddish edged; depressed spaces (1) whitish. The 

 color in the subdorsal ridge is in islands about groups of horns. Lat- 

 eral spaces green, including the lateral horns. Patches of clatropes 

 on the lateral horns of joints 6-13 at the tip, slightly on the anterior 

 aspect, the patch on joint 12 small, the other patches rather large 

 elliptical. The purple of the dorsal space shows in a line below the 

 subdorsal ridge. Elongate elliptical, rather thick, the ends subtruncate. 

 Dorsum rounded from joint 5 anteriorly and 11 posteriorly, the sides 

 nearly perpendicular. Subdorsal horns on joints 3-5 subequal, of 6 

 and 7 small, of 8 intermediate, of 9 and 10 small. The horn of 6 is 

 approximate to 5, that of 10 to 11. Horns of 11 and 12 subequal to those 

 of 4-5 ; of 13 intermediate to the lateral horns and colored like them. 

 Lateral horns of 3-4 and 6-12 rather long, equal. Dorsum purple-blue 

 between the marks and in a line below the subdorsal ridge. A red 

 dorsal line, yellow-centered, forming cross-bars on the depressed 

 spaces (1) on joints 4-5 and 11-12; other depressed spaces whitish and 

 adnate to the dorsal line, the outline of which is a little irregular. 

 Subdorsal horns bright red, in a broad yellow band on the ridge, 

 broken at 6-7 and 9-10 with an intervening red dot, incised more or 



