Dec , 1909.] Wheeler : Observations on European Ants. 



177 



greatly pleased some weeks later to find the species at Zermatt in 

 seven Tctramoriitm colonies. The appearance of the specimens in 

 this locality, however, struck me as being peculiar, because they 

 seemed to differ from a series of topotypes of all three phases of 

 huberi which had been generously given me by Professors Forel and 

 Escherich. The workers of the Zermatt specimens were much darker 

 in color except for the pro- and mesonotum which were very pale 

 and shining and enabled me to distinguish them at a glance as they 

 moved about among the Tetramorium workers. The males and 

 females were in the larval and pupal condition in nearly all the nests 



Fig. I. A, Strongylognathus huberi Forel, worker; B, head of female; 

 C, S. huberi alpinus subsp. nov., worker ; D, head of female. All the figures 

 drawn under the same magnification. 



whereas the males and females of the uninfested Tetramorium 

 colonies were either fully matured or had already celebrated their 

 nuptial flight. 



Careful comparison of the Zermatt specimens with the topotypes 

 shows that they differ sufficiently from the typical form to be regarded 

 as a new subspecies of the same rank as the other subspecies of 

 huberi, namely, christophi Emery of Sarepta on the Volga, cacilice 



