MELANDER. 



The arrangement of the pupae deserves notice. Two were 

 entirely enclosed in the resinous mass except at their mammillated 

 end. The three adjacent, were more exposed, all on the same 



side from the two enclosed cells, and 

 arranged in a row parallel with that of 

 the two, while the sixth, which con- 

 tained the only male, was quite un- 

 covered and placed on another side of 

 the nest. This also was the last to 

 transform. The five contiguous cells 

 contained females. All the pupae were 

 oriented alike ; also, the head of the 

 pupa was nearest the mammillated end. 

 The first bees, two in number, 

 emerged on May i6th, and immedi- 

 ately crawled back into their cases 

 head first. The next transformed on' 

 the i Qth, the fourth and fifth on the 

 25th, while the male did not appear 

 until June 4th. Each imago repeated 

 the habit of the former ones, by crawling head-first into its 

 vacated pupa-case. The adult bees seemed to have eaten the 

 flat end of their envelope in getting out, for no traces of it could 



FIG. 2. A single pupa cell 

 showing the mammilla. 



FIG. 3. Anthidium texamim Cress. 



be found afterwards in the breeding-cage. No cottony pubes- 

 cence whatever was employed in the nest-construction. The 



