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XXI, Dcscri2itions of some Ants from the Rocl-y Mo'itntains 

 of Canada (Alberta and British Colunilna). Col- 

 lected by Edwaed Whymper. By Professor 

 Augusts Forel, M.D., Hon. F.E.S. 



[Read October 1st, 1902.] 



1. Myrmica ruhra, L., subsp. hrcvinodis, Emery, var. 

 frigida, n. var. ^ . 



The head longitudinally rugose, also at the sides, and nearly 

 without transversal reticulations (in the typical brevinodls, the sides 

 of the head are more reticulated). The abdomen highly polished, 

 with only a few scattered erect hairs (more hairy and with slight, 

 scattered puncture in the typical brevinodis). The whole body less 

 hairy than in the typical hrevinodis. Eed ; the abdomen and the 

 upper side of the head brown. In all other parts like the typical 

 form of the subspecies. 



Ice Eiver Valley, British Columbia, 5000 feet. 



2. Formica intcgra, Nyl., ^ . Ice Eiver Valley, British 

 Columbia, 5000 feet. Very typical. 



3. Formica fusca,lj.,\ ax. sulaenescens,'Ein-\exy, ^. Mount 

 Goodsir, British Columbia, 7000 feet. Very typical. 



4. Formica fusca, L., var. neorujiharhis, Emery, ^ $ . 

 Vermilion Valley, Province d'Alberta, 6100 feet ; Yoho 

 Valley, 4600 feet; Ice River Valley, 5000 feet; British 

 Columbia. Typical. 



5. Camjwnotus JuTC'ulcanns, Jj.,v&,r. JVhi/mpcri,u. var. ^ ^. 

 Very like the typical form of Europe, but the tibiee and 



scapi abundantly covered with short, obliquely erected 

 (half applied) hairs. In the typical form only a scattered 

 and quite applied pubescence. The sculpture perhaps a 

 little more strong, and the colour a little more dark than 

 in the typical hcrculeanus. Professor Emery has already 

 pointed out the stronger sculpture in speaking of the 

 American hcoxuleamis. Specimens of Hill City, South 

 Dacotah, and of North field, are identical with those of 

 British Columbia, and, I believe, that all American 

 hcrculeamis belong to the var. Whymperi. 



Ice River Valley, 4800— 5000 feet ; Banff, Province 

 d'Alberta, 4500 feet (the $ ). 



TRANS. ENT. SOC. LOND. 1902. — PART IV. (DEC.) 



