it 

 <( 



Studies on Life-history of Bomhycine Moths. 43 



Should any one rear any of these Bombyces, with a view to 

 publication, I should be greatly obliged for alcoholic specimens of 

 the eggs and different larval stages, which might be sent after such 

 descriptions were published. Such specimens would be carefully 

 kept and returned. It will only be by such co-operatioli that we 

 shall arrive at a fair knowledge of the transformations of this ex- 

 tensive group. ^ 



List of Desiderata in the Completion or the Life-histories of 



THE PRINCIPAL GenERA OF BOMBYCES AND ZYG.ENIDiE. 



NOTODONTWuE. 



Uluphisia lintneri, danhyi, ridenda, and auy other species of this genus except 



trilineata, eggs and larvae of any age. 

 L phodonta angulosa, " 



Datana ministra and other species, " 



Notodonta stragula, young larva. 



Nerice bidentata, eggs and larvse in all stages. 

 Seirodonta hiliiieata, eggs and young larva (stages I-IV). 

 Heterocampa marlhesia, eggs and stages I— II. 



" guttiritta, eggs and stage I. 



" ohliqua, eggs and all stages. 



" suhalbicans, eggs and earlier stages. 



Litodonta hydromeli, eggs and larvae iu all stages. 

 Vcrura aquitonuris, " " " 



" scitiscripta, " " " 



" multiscripta, " " " 



CERA TO CAMPID.E. 



iSphingicampa, any species but bicolor, eggs and larvfe in all stages. 

 atheroma sepulcralis, " " " 



SA TURNIID.E. 



Hulurnlu gulbina, eggs and larvae in all stages. 



" mendocino, " " " 



Plutysamia ceanothi, " u u 



' It is earnestly hoped that any one receiving this article will kindly recip- 

 rocate by sending the eggs and larvie of whichever of the following moths 

 tliey can, packed in tin boxes, to the author at Providence, R. I., or during 

 .Inly and August, at Brunswick, Maine. 



