55 



small form which has usually gone under the name of nanus Neum. 

 An examination of the 3 and 9 types of nanus in the Neumoegen 

 Collection has shown us that while the 9 's are normal and typical 

 smintheus the $ type is of an aberrant form in which the red ocelli 

 of the secondaries are wanting, the costal one being replaced by a 

 black ocellus and the discal one being entirely missing; these types 

 have recently been figured by Dr. Skinner (1916 Ent. News, p. 

 210-16) ; a tendency to such forms is found in all specimens from 

 the higher altitudes of Colorado (over 10,000 ft.) and presumably 

 other states and the race described by Stichel as mcndica (Gen. In- 

 sect. Parn. 20, 1907) from Montana, B. C. and Colorado we do not 

 believe can be separated from typical nanus. Another similar form 

 is minor Verity from the neighborhood of Laggan. The 5 's of all 

 these small races, whether from the far north or from the high 

 peaks of Colorado show a marked tendency to become suffused with 

 black; the name hcrmodur was given by Hy. Edwards to such a 9 

 from S. Colorado and the type which we have examined can scarce- 

 ly be separated from the normal 9 smintheus of the Laggan region ; 

 it is figured by Dr. Skinner in the above mentioned article. 



Although in our opinion all the above mentioned names are 

 practically synonymous in that specimens agreeing with each of the 

 types may be picked out of any good series from either Colorado or 

 Laggan, still, if it be considered necessary to keep the high altitude 

 form of Colorado separate from the form of the Canadian Rockies, 

 the name hcrmodur Hy. Edw. might be correctly used for this Col- 

 orado race ; nanus Neum. may be applied in sens, strict, to the aber- 

 rational form of typical smintheus, whilst mendica Stichel and minor 

 Verity must fall to either hcrmodur or nanus. We figure two pairs 

 of hermodur from Silverton, Colo. (10,000 ft.) which will serve to 

 illustrate the great variability found in the species even in one local- 

 ity; the dark 9 is Verity's nigerrima. 



For the form common in the lower altitudes of Colorado and 

 adjoining states which is figured by Edwards as typical smintheus 

 and which is distinguished by its larger size and pale white 9 's the 

 name sayi Edw. may apparently be used. The type of sayi is lost 

 but the description points to this form in the measurements given 

 (2y 2 in.), and Edwards himself states (Butt. N. Am. Parn. II) 

 that he considers it to be merely an extreme form with the red costal 



