76 



LEAF-MIXING INSECTS 



Fig. 28. The chestnut leaf-miner Eriocrania auricyanea. (After Busck 

 and Boeving.) A, a chestnut leaf bearing a mine; B, a larva in lateral 

 view, setae omitted; C, a pupa. Note the enormous crossed mandibles. 



head, mandibles, and thoracic segments. T. A. Chapman 

 examined and described the pupa of Eriocrania purpuriella 

 and observed its emergence. His measurements will give 



