18. BULLETIN OF THE BROOKLYN ENT. SOC 



glossy black except next to the body where it is bright yellow. All the 

 rest of the body of a uniform pale green color. 



Larvae passed their second moult on May 27th. Length % inch: 

 nearly cylindrical; pale green, except the legs and the mandibles which 

 are glossy black: the prolegs which are tipped with black and the tain la! 

 horn which is black except at its base where it is bright yellow. Collar 

 exactly as after first moult. Stigmata are now for the first time noticable, 

 being now black surrounded by a narrow grayish white border. Towards 

 the end of the second moult the larvae becomes whitish green on the dor- 

 sum-; yellowish green on the sides and dark brown on the ventrum; the 

 grayish white border surrounding the stigmata also changes to white. 

 Otherwise unchanged except in size. 



Larvae moulted the third time on May 31st. Length from % to \% 

 inch. The larvae taper from the 4th segment to anterior extremity and 

 from the 9th segment to the posterior extremity. Head subquadrate, yel- 

 lowish green; mandibles black. Collar very prominent with four bright 

 yellow round tubercles on each side of dorsal line. Legs black and pro- 

 legs tipped with black. Caudal horn glossy black except at its base where 

 it is bright yellow. Stigmata oval, black surrounded by a narrow white- 

 border. Ventrum brown. 



Larvae passed their fourth moult on June 3rd. Length \V A to 1^ 

 inch. Otherwise exactly as in last moult. The larvae quit feeding June 

 6th when they had acquired a length of 1% to z% inches. Otherwise 

 they underwent no change in appearance till last day of feeding when their 

 color became darker, some becoming brown. 



On June 6th they began to prepare for pupating by making (on the 

 surface of the ground and in corners of the box) a rude cocoon of bits of 

 dirt and leaves bound together by a thin web of dark brown silk. With- 

 in this slight protection the larvae pupated on June 7th. 



Pupae are black from 1. 1-16 to 1 % inch in length; spindle shaped — 

 being largest at about one third of their length from the anterior end of 

 the pupa, and tapering nearly equally to each end. The anterior extremi- 

 ty is rounded while the caudal extremity is prolonged into a flattened tri- 

 angular point. Wing cases well marked and cover the lateral and ventral 

 surfaces of the anterior one half of the pupa. The abdominal segments 

 (seven in number) are separated by very deep sulci and the pupa is very 

 active in its movements if disturbed. 



Pupae made on June 7th disclosed imagines on June 23rd, On e- 

 mergence the whole surface of the wings is covered with black scales which 



