303 



to that of Bombyx Milhauseri Fabr., Ernst., 202, fig. 269, which I presume 

 belongs to the genus Stauropus. 



Larvse found Sept. 29 and June 25. Cocoon found Sept. 29, and early 

 in July. Imago, July 31. 



Notodonta concinna Sm.-Abb. [PI. i, fig. 3.] 



Caterpillar on the cherry tree, Aug. 21-30, 1821. 



Greenish yellow; head and dorsal hump on the fourth ring coral red, a 

 double row of obtuse black spines on the back, and five black points on the 

 sides of each ring, namely, two above and three below the spiracles; back 

 with five narrow black lines; sides above the spiracles from the fifth to the 

 tenth ring inclusive, white with black lines, first three rings spotted with 

 black and white, last (eleventh) spotted with black. Legs black; prolegs 

 black and yellow. Winged June? 1822. 



Gregarious caterpillar in the autumn on cherry, plum, apple and rose 

 trees. Spinous ; abdomen bimucronate behind, or with this part elevated, the 

 terminal pair of legs being the forked projections. It is striped with yel- 

 low, white, and dark brown or black; has a red head, and a fleshy red 

 tubercle on the fourth segment. The body above is armed with a double 

 row of twenty-eight black spines, longest on the tubercles, and shorter 

 towards the extremities. It has also other smaller spines at the sides of 

 the body, one in each segment. Feet sixteen, the first three pair with 

 nails, the others without; the last pair at the extremity, which is elevated 

 at an angle of forty-five degrees when the insect is not crawling. 



This caterpillar feeds promiscuously on the leaves of all the trees above 

 mentioned. They are less common, and of more rapid growth than the 

 other gregarious caterpillars. New broods appear from the middle till the 

 end of August. They enter the earth in the night, spin a very thin, 

 silky web around themselves, and remain in the caterpillar state, though 

 much contracted, for a long time afterwards. The moths do not appear till 

 the next spring or summer. 



Sept. 9, found that one caterpillar had rolled himself up the day before 

 in a web covered with leaves. Sept. 10, others disappeared in the earth, 

 and the remainder of those which I reared were gone into the earth on the 

 llth and 12th. July 1, a moth came out much mutilated. 



Aug. 10, the larva? observed on the trees. Aug. 15, one of them formed 

 its cocoon on the surface of the earth, of leaves and silk. 



Aug. 14, 1822, saw some small larvas. Aug. 19, found the eggs of this 

 insect on the under side of a leaf, and the caterpillars on the same branch 

 about half grown. 



