Cly fcabian ^ntomologbt 



VOL. XXI. LONDON, DECEMBER, 1889. No. 12. 



PREPARATORY STAGES OF LEPTARCTIA CALIFORNIA 

 Walker, WITH NOTES ON THE GENUS. 



BY G. H. FRENCH, CARBONDALE, ILL. 

 Contimied from page 21 j. 

 The first to express this belief and put it in a tangible shape before 

 the public was Mr. A. G. Butler, who published a paper in the Ann. Mag. 

 Nat. Hist, based upon a collection of moths made by Lord Walsingham 

 in Oregon. He states he does not hesitate to say that he believes that 

 the different forms do not represent several distinct species, but different 

 forms or varieties of one extremely variable species. The four names 

 that had been used he retains as names of the four forms they were 

 originally intended to represent, and gives in addition four new names. 

 According to Mr. Butler's idea they would stand as follows : 



LEPTARCTIA CALIFORNIA. 



Var. I, Stretchii, Butler. 



" 2, Boisduvalii, Butler. 



" 3, Dimidiata, Stretch. 



" 4, Latifasciata, Butler. 



" 5, Fulvofasciata, Butler. 



" 6, Californise, Walker (type). 



" 7, Decia, Boisduval. 



" 8, Lena, Boisduval. 

 He does not describe these in full, but bases his description on the 

 work of Stretch, Ills., Zyg. and Bomb., using the figures on plate 5. 



I have before me representations of all but one of Mr. Butler's varieties 

 in my own collection, and those loaned me by my friend, Mr. W. G. 

 Wright, of San Bernardino, California, and three forms that are not refer- 

 able to any of his. The second variety, Boisduvalii, I have not seen : but 

 it is figured by Stretch. From the series I have, I deduce the following 

 brief descriptions, and from them have had made the wood engravings 

 illustrating the different varieties. 



