408 



PSYCHE. 



[September 1899. 



pale brown; width .5 mm. Body smooth, 

 slender, whitish green, finely creased an- 

 nulate, not shining, no marks, no projec- 

 tions. 



Stage IIT. Head round, slightly bilobed, 

 broad, green, slightly brown dotted on the 

 sides of the lobes; width .9mm. Body 

 smooth, green, a little whitish, especially on 

 the substigmatal fold above which is a faint 

 darker green band on joints 3 to 13, or this 

 band may be blackish ; spiracles black. The 

 segments are annulate on the anterior half 

 ventrally. The larvae sit at an angle with a 

 supporting thread from the mouth. 



Stage [V. Head rounded, bilobed, green, 

 a reddish suffusion on the side; width 1.3 mm. 

 Body green, sordid on the thorax and joint 

 13, elsewhere opaquely yellowish green; a 

 brownish suft'usion on joint 10 stigmatally; 

 spiracles on joints 5 to 9 in black patches. 

 The elongated central segments are folded- 

 wrinkled on the posterior third; lateral fold 

 rather distinct. The skin is smooth, almost 

 without marks. 



Stiige V. Head as before, the brown patch 

 on the side larger; width i.S mm. A stig- 

 matal shade on joints lo to 13 and patches 

 on 6 and 7 distinct. Tubercle ii of joints 7 

 and 10 a little enlarged and shaded with 

 brown. Otherwise smooth, opaque yellowish 

 green, a little shaded with brown; a brown 

 dot on joint 3; tubercle iv black the whole 

 length; joint S more or less distinctly col- 

 lared. There is much variation in different 

 larvae in the amount of brown ; the poste- 



rior end, joints 10-13, maybe all brown and a 

 large patch on joints 6 and 7. 



Stage VI. Head green only centrally and 

 on the vertex, heavily shaded with purplish 

 brown over the side of each lobe, darkest 

 posteriorly; rounded, bilobed, higher and 

 wider than joint 2; width 2.5 mm. Body 

 cylindrical, smooth; a collared elevation on 

 the dorsal half of joint 7 (tubercles ii and 

 iv) ; ii and iv of joint 10 and iv of joint 6 

 with slight elevations or joint 6 even collared 

 on the ventral half; the dorsal tubercles all 

 a little prominent especially on joints 3, 9 

 and 10. Color dull, not shining; under 

 ground green, all shaded with purplish 

 brown, the exact amount varying. Joints 

 10 to 13 are nearly entirely shaded, the ven- 

 ter of these and of 2 to 4 contrastingly pale 

 green. There is a dark spot on tubercle iv 

 of joints 5 to 9 with a tendency to transverse 

 bands. Tubercles dark, relieved by white 

 patches in the dark and prominent parts. 

 Spiracles black, ringed with whitish outer 

 shades. Anal plate rounded; two subanal 

 prongs. The larva resembles a twig that is 

 partly green. One example was all brown 

 except on the face and dorsally on joints 2 

 and 3. 



Eggs were obtained at Brookhaven, Long 

 Island, N. Y., late in June and the larvae 

 spun towards the end of August, passing the 

 winter as pupae. Fully grown larvae were 

 found at Morris Plains, N. J. 



Food flitnts. Red and white oaks and 

 chestnut. 



A. SMITH & SONS, 269 PEARL STREET, New York. 



MiMFAt'TlKERS AND I Jll'IIKTKKS OF 



GOODS FOR ENTOMOLOGISTS, 



Klaeger and Carlsbad Insect Pins, Setting 



Boards, Folding Nets, Locality and 

 Special Labels, Forceps, Slieet Cork, Etc. 

 Other articles arc being added, Send for List, 



