HEAD OF COEJSCrUM. 165 



they are hopping about the grass stems, and depositing 

 eggs on the stems of Dactylus glomeratus. 



The heads of the following are remarkable, and worth 

 mounting : 



HEAD OF PLUTELLA, 



with tufted labial palpi. 



The moth is spotted gray, and is often very abundant 

 among cabbages and cruciferous plants. 



HEAD OF CORISCIUM. 



This should show the front of the head, and the curved 

 labial palpi with long pendant scales. The moth is 

 grayish-brown, and hovers about oak-trees in June, August, 

 and September. 



