— ii8— 



not abundant enough to hide the body even just after moulting. 

 There are a few black hairs on the head and a fringe of short hair 

 overhangs it. The warts are large, dull black, and arranged ex- 

 actly as in the larva of Arachnis picta Pack.* Spiracles white. 

 Length of the larva at maturity 45 mm. Duration of this, the last 

 larval stage, eleven days. 



Cocoon. — A slight netting of threads drawing together any 

 loose material and containing no hairs, for these remain on the cast 

 skin. The operations of forming the cocoon and preparation for 

 pupation occupy five days. 



Pupa. — When first formed the pupa has the thorax, head artd 

 cases pale transparent yellow, the abdomen white, purple between 

 the segments with a brick-red dorsal interrupted line and several 

 rows of darker red spots on the sides and venter. The cremaster 

 is broad, but very short, with four spines of about equal length; 

 color pale brown. Soon the whole pupa turns shining black and 

 becomes covered with a white bloom. Cases creased; thorax and 

 abdominal segments punctured. Duration of this stage twenty- 

 eight days. 



Food-Plants. — The larvae seem to be practically omnivorous, 

 at least for tender plants growing near the ground. I carried some 

 from California to the East and fed them on the native plants by the 

 way. They reached maturity in Florida on the food-plant of Dilo- 

 phonota ello. During all the larval stages they feed only at night, 

 and are very lively in their attempts to run and hide if disturbed. 

 Larvae from Los Angeles County, Cal. 



EXCURSION. 



The committee from the Brooklyn, Newark and Philadelphia 

 Societies have decided upon Upper Jamesburg, N. J., as the place 

 where the field meeting of the entomologists of the three cities and 

 neighboring points is to take place on the 4th of July next. James- 

 burg is on the Amboy Division of the Pennsylvania Railroad, and 

 may be reached from New York via Perth Amboy and Rahway at 

 9.10 a. m., Newark at 9.36 a. m. ; via Monmouth Junction, New 

 York 7.20 a. m., Newark 7.50 a. m. Leave Philadelphia from 

 Broad Street at 6.50 a. m. via Camden at 7. 10 a. m. 



The 7.20 a. m. from New York via Monmouth Junction meets 

 the 6.50 from Philadelphia at Monmouth Junction, and this train is 



* See Ent. Amer. vol. vi, p. 74. 



