410 



of the I tody, and the double dorsal row of black spots. In one specimen, the 

 body is quite uniformly mottled with black, and the dorsal spots arc not 

 clearly indicated. Length, 0.50 inch. 



Larva. — "It is larger than the canker-worm and very differenl from it 

 in appearance. It is of a brighl yellow color, with ten crinkled black lines 

 along the top of the hack; the head is mst colored; and the belly is paler 

 than the resl of the body. When fully grown, it measures about one inch 

 and a quarter in length. It often rests with the middle of the body curved 

 upwards a little, and sometimes even without the support of its fore-legs. 

 The leaves o( the lime seem to lie its natural and favorite food, for it may bo 

 found on this tree every year; hut I have often seen it in considerable 

 abundance, with common canker- worms, on other trees (elm and apple trees). 

 It i-s hatched rather later, and does not leave the trees quite so soon as the 

 latter. About or soon after the middle of June it spins down from the trees, 

 goes into the ground, and changes to a chrysalis in a little cell Hve or six 

 inches below the surface; and from this it comes out in the moth state 

 towards the end of October or during the month of November. More rarely 

 its last transformation is retarded till the spring. The eggs are laid in little 

 clusters, here and there on the branches. They are of an oval shape, and 

 pale yellow color, and are covered with little raised lines, like net-work, or 

 like the cells of a honey comb."— Harris. ,'341, 1841. 



EUBYJA Hiibner. Plate 4, tig. 18. 



Eubyja liiil.1... Verz., 318, 1818. 



Atiijiliiihisis Treits. (in part), Sclun. Eur., vi ( i), '.'•.".•, 1827 



Dup., (in pari | Lep. France, vii (iv), 268, 1829. 

 Biston Stepb. (in pari ). Nomencl. Br. Ins., 4:;, 1829. 

 AmphUlasis Boisd. (in part). Gen. Ind., 195, L840. 



H.-Sch. (iu part), Scbni. Eur., iii, 99, 1 — IT. 

 Biston Stepb. (in part), Cat. Brit Lep., 163, 1850. 



Biston (in part) anil Amphidaain Lederer, Verh. Hot. Zool. Ges. Wien, IT?, 1853. 

 Amphidasys Guen., Pbal., i. 206, 1857. 



Walk.. List l,, -p. Hct. Br. Mus., \xi. 305, 1860. 



Body very stout and hairy, particularly on the thorax. Head large and 

 prominent, broad between the eyes and on the vertex. Palpi short and 

 slender, not reaching the front. Antenna' heavily pectinated nearly to the 

 tip, though the branches are shorter than in Biston. Fore wings long and 

 narrow, .with the apex much produced, the costal edge being much curved 

 tow aid the apex, while the outer edge is long and unusually oblique, and as 



