EXPLANATION OF PLATE LL 



Fig. 1. — Anisota senatoria, head and four trunk segments, stage III; a, third thoracic dorsal tubercle. 



Fig. 2. — Anisota stigma, second thoracic horn, stage II, with third dorsal thoracic tubercle; larva 70 mm. in length; 



also the same, stage III, with two views of third thoracic dorsal tubercle; and V, an aberrant, 



shorter, stouter horn. 

 Fig. 2a. — Anisota stiijma, c, right thoracic horn, deformed, short, l>nt of the same thickness as its mate; i', tuliercle 



m (supruspiracular), stage IV? <(, third donsal; h, abnormal second dorsal tubercle of a larva ll' mm. 



long. 

 Fig. 2b. — Anisota stigma, end of body, stage III. 

 Fig. 2c. — Anisota stigma, end of body, stage I^'. 

 Fig. 3. — Anisota senatoria, head and five trunk segments, stage I. 

 Fig. 3o. — Anisota senatoria, head and four trunk segments, stage II. 



Fig. 36. — Anisota sanatoria, prothoracic and second dorsal horn of stage III, and second thoracic horn of stage V. 

 Fig. 3c. — Anisota senatoria, head and four trunk segments, stage I\^. 



252 



