— 147— 



surmounted by large velvety black tufts of hairs ; seven and eight by 

 tufis of shorter clear white hairs ; 9th segment bright orange, with 

 whitish waves ; loth and iith with the red tubercles very distinct, 12th 

 with pencil of black hairs, directed backwards. Anal segment, dull 

 brown. Along the lateral region which is black, are some faint and 

 slightly waved dull yellow lines. Under side dull slate color, feet and 

 legs concolorous. 



Length, 1 1 mm. 



After this moult, there is no change in the larva except in size until 

 it attains its mature growth which has been fully described in Proc. Cal. 

 Acad. Sc. and Papilio by mvself and INIr. R. H. Stretch. 



It is a question for doubt as to whether this form is, or is not, the 

 same as the European Org. antiqiui L. 1 have elsewhere stated it as my 

 opinion that the two are identical, but there is certainly a considerable 

 difference in the larval stages. My specimens fed upon Pyriis com?nunis 

 and Wild Cherry, though the many (^(^ I took in Michigan were hover- 

 ing around a species oi Pi?ius on which I also found several 9 9- The 

 species appears to be northern in its habitat, as I first took it inVancouver 

 Island and have observed it also in Northern Ontario and in Quebec. 



Ed. Ent. x\m. 



Dear Sir , 



In reference to the interesting contents of the last number of 

 your Journal I would state that Nola fuscula is founded on a Colorado 

 e.Kample which seemed to belong to a larger and paler species than the 

 Texan minuscula in my collection. It is probable, as I at the time sus- 

 pected, that it is only a local variety. In separating A. virgo and Saun- 

 dersii, I referred to the character of the narrower stripes and the W or M 

 mark ; I think the x mark may be derived from the W. In my list the 

 species are not arranged with exactitude. At that time there was no cer- 

 tainty (nor is there now) as to their real standing. In my opinion no 

 lumping of our Arctias can be called "good" which is not based on 

 breeding and a knowledge of the variations of the larvae. As to Mr. 

 Walker's names, care must be taken that we have to do with his real type 

 and that his printed description bears the species out. Between my first 

 and second visits to the British Museum specimens had been added. I 

 refer to my already printed papers for instances where specimens of sev- 

 eral species appeared under one label. 



A. R. Grote. 



