THE CANADIAN ENTOMOLOGIST. 233 



are species from eggs laid by captive females of one or either, and this 

 can easily be done, in the way I have elsewhere indicated, by any one 

 taking the trouble to attend to the matter on the spot. A strong point in 

 favor of the identity of these forms would be a great similarity between 

 the larvae that produce them. The young larva of arthemis I know, and 

 it is essentially different from that of Ursula. I expect the larva of 

 proscrpina to exhibit the form of arthemis, and not of Ursula. It would 

 not be difficult to establish the facts one way or other next spring, to 

 some of your readers. 



NOTE ON CATOCALA WALSH1I, Edwards. 



BY AUG. R. GROTE, BUFFALO, N. V. 



I have received, through the kindness of Mr. C. V. Riley, a specimen 

 of this fine species which has been heretofore unknown to me. It is, 

 perhaps, a little larger than unijuga and very different in character (also, 

 therefore, distinct from jundura, from my recollection of that species in 

 the British Museum) ; it resembles the European elocata in the appearance 

 of the forewings : these are evenly intensely powdered with dark scales on 

 a grey ground color which becomes yellowish brown over the median 

 spots and subterminal space. The species thus differs strongly from 

 Meskei, in which the forewings are pale grey and resemble in color more 

 distantly those of the European electa, or perhaps our American porta. 

 There is a more prominent discal tooth on the t. p. line in Walshii, 

 wanting in elocata. On the hind wings the median band is much as in 

 Arizonae, narrower than in Meskei or unijuga (in which it is broadest) 

 and not continued below vein i, whereas in elocata it attains the internal 

 margin. Beneath, the band is narrower than in elocata, and also non- 

 continuous. The median spots on the fore wings above are more like 

 elocata than unijuga. On the hind wings the inner edge of the marginal 

 band is much as in Arizonae, even, not ragged as in elocata ; the ante- 

 postical sinus is cleanly cut. Beneath, the white bands on the primaries 

 are broader than in elocata, and even than in unijuga, and the space 

 between the median band on the hind wings and the marginal band is 

 wider on either surface in Walshii than in either of its allies. The red of 



