194 THE ENTOMOLOGIST. 
early June. Still, even in Andalusia, I am not aware that any 
actual evidence exists of a second emergence. 
A. var. arragonensis is, 1 believe, confined to the central plateau 
of Spain. In this region the time of emergence is at the end 
of July and in early August. The locality which most of the 
specimens in European collections of this form came from is 
probably Albarracin, where it has been met with abundantly by 
numerous lepidopterists, including Miss Fountaine, Dr. Chapman, 
Messrs. Simes and Hoar, and the present writer, always at the 
above-mentioned time. Moreover, Mr. A. H. Jones and myself 
were at Albarracin from May 13th to June 380th, 1913, without 
seeing a trace of A.var. arragonensis, although we were almost daily 
in a locality that would produce hundreds of examples a month 
after we left. Messrs. Simes and Hoar also were at Albarracin 
during about the same period the following year without seeing 
a trace of it. Zapater, who lived at Albarracin many years, and 
Korb, who collected there the whole of several seasons, in their 
Catalogue speak of all the forms of A. corydon as occurring in 
July and August. 
Dr. Verity places the beautiful form of A. corydon, var. 
hispana amongst the varieties of that species, and thus, if his 
diagnosis is right, it should emerge after A. var. arragonensis, but 
it does not; both forms emerge in the Albarracin Sierra at 
practically the same date, though I am inclined to think, judging 
from the condition of the series captured by myself in 1905, that 
A. var. hispana has the priority by a few days or a week. 
A. var. hispana, which. so far as I know, occurs only in the 
Albarracin Sierra, usually frequents a district where the prevailing 
rocks are metamorphic, whereas A. var. arragonensis frequents a 
calcareous strata. In certain places, however, such as the Guada- 
lavier Gorge, some four or five kilometers below Albarracin, and at 
Puerto de la Losilla, amongst the hills three or four kilometers 
from the same town, both forms occur on the same ground, the 
former rarely, the latter abundantly ; where this mixing of forms 
takes place, and only there, so far as I know, intermediates occur, 
and it is reasonable to suppose that these are probably the 
results of crossing between them. 
The above facts, 1 think, show that (1) A. var. arragonensis 
and A. var. hispana are forms of one species, and (2) that the 
name arragonensis cannot be applied to Dr. Verity’s new species 
in the event of it being eventually proved to be distinct. 
No doubt by a slip of the pen Mr. Rowland-Brown,* at the 
head of his article, writes of the new species as aragonensis, 
Verity. This should read arragonensis, Gerhard. 
Youlegreave, South Croydon; August 16th, 1916. 
* Icopied Dr. Verity’s description. See tabular statement.—H. R.-B. 
