1910] Reiff—Argynnis Cybele bartschi oa 
but it was a badly mangled individual. It would seem, therefore, 
that this form is not so very rare in this locality, although we 
should expect it to be very scarce on account of the peculiarity 
of its origin. Of the peroneurous Papilio machaon aberration, 
above mentioned, I secured two specimens from only 75 pupe, 
which is also a proof that peroneurous aberrations can develop 
with comparative ease, though the conditions for such develop- 
ment are still unknown. 
Mr. Bartsch very generously presented me with the interesting 
specimen of Argynnis and I have placed it in the collection of 
the Bussey Institution. In honor of the discoverer I would name 
this peroneurous aberration, Argynnis cybele Fabr. forma Bartschi. 
Its diagnosis would be the following: 
Alarum vene post mediam ad extremam partim immature vel obsolete; propterea 
macularum seriebus omnibus in vittis confluentibus; ubivis vene partim vel omnino 
obsolete sunt. Ale contracte, propterea aspectu aliquantum producte. 
Type: 1 in the collection of the Bussey Institution. 
GEOMETRID NOTES. 
A New VaRIEetTy oF NyYcrTosia. 
By L. W. Swett. 
Boston, Mass. 
Nyctobia limitaria Walk., reiffi var. nov. 
Exp. 25 mm., palpi short, white typed body and thorax ash gray, antenne black 
and white ringed. Fore wings ash gray, first a reddish brown basal band running 
outward below costa in a strong curve to median vein where it recurves to inner 
margin. Beyond this is a pale gray space 3 mm. wide where there is a broad chest- 
nut brown band running from costa to inner margin, the inner edge of which is 
very irregular, the black linear discal spot is just visible, the extra discal edge of 
this band is bent outwards below costa at discal spot and inward towards inner 
margin, beyond this the wing is pale ash and two faint brown hair lines run brokenly 
to inner margin. Twin dots at ends of veins in the long ashen gray fringe. Hind 
wings light ash with a faint extra discal brown band, below which the wing is 
lighter. The fore wings beneath are light ashen with band showing through faintly 
the discal dot is black, and appears on hind wings also, which are same as fore 
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