226 BIOLOGICAL si'ItVKV OF 



smkkinthi s Latreille 



8. jamaicensis Drury, form geminatus Say (739). The Twin- 

 spot Sphinx. Common, Corfield, Penikese from June 15 to 

 July 15. The larva feeds on birch, cherry, etc. 



S. cerisyi Kby. (740). Corfield at light around the middle 

 of June. Larva feeds upon willows. Not as plentiful as the 

 above. 



Paonias Hiibner 



P. excaecata Abb. & Sm. (741). The Blinded Sphinx. N. E. 

 Harbor; Corfield and Penikese at light, June 29-July 25. 

 The larva feeds on various plants of the order Rosaceae, 

 also on willow, etc. 



P. myops Abb. & Sm. (742). The Small-eyed Sphinx. Peni- 

 kese at light, July 1-23. The larvae also feed on various 

 Rosaceae. Not as plentiful as above. 



Pachysphinx Rothschild and Jordan 



P. modesta Harr. (745). The Big Poplar Sphinx. Common. 

 Large hatch 1935. Penikese, June. The larva feeds on pop- 

 lar and willow. 



Aellopos Hiibner 



A. titan Cram. (765). The White-banded Day-sphinx. Peni- 

 kese, July. Scarce and its northern limit. 



Hemaris Dalm 



H. thysbe Fab. form cimbiciformis (767). The Humming- 

 bird Clear-wing. Common, June 8- July 28. The larva feeds 

 on Viburnum, Lonicera, etc. The most common species of 

 the genus and is a dimorphic form. 



H. gracilis Grt. & Rob. (768). The Graceful Clear-wing. 

 Great Clearing; Witch Hole Pond; S. W. Harbor in June. 

 The most scarce of the three species. 



H. diffixis Bdv. (770). The Snowberry Clear-wing. Com- 

 mon, June 12-July 17. The larva feeds on snowberry 

 (Symphoricarpus) , Lonicera, etc. The spring form is called 

 tenuis and the summer that above. 



