IIYMENOPTERA FOEMICIDAE C. MARGINATUS. 



729 



Report upon the collections of Formicidce, made during the years 1872, 1873, 



and 1874, ly 



EDWARD NORTON. 



To make sure of the correct determination of this series of Ants, I 

 forwarded a set of them to Dr. Gr. Mayr, Vienna, who kindly compared 

 them with his large collection, and fixed them with greater precision than 

 is possible in this country. 



It is a matter of surprise to find so many species along certain parallels 

 of latitude, apparently identical in this country and in Europe, and in some 

 cases around the whole world. 



So many new species have been found in Mexico that this result was 

 hardly to be expected in New Mexico and Colorado. 



I have before learned that great caution will be required in making 

 up a list of the Formicidse of the Northern United States. 



FAM. FORMIC1DAE. 



1. Subfamily FORMICTDAE. 



CAMPONOTUS, Mayr. 

 Camponotus, MAYK, Ear. Formicideu, 1801, 35. 



1. CAMPONtJTUS MARGIN ATUS, Latr. 



Formica marginata, LATK., Hist. N. Formic., 103, 9 nee % . MAYR., Form. Austr,, 42. 



$ .SMITH, Brit. Mus. Cat., 11. 



Formica fallax, NYL., Ann. Sc. N. Fr., iv, ser. v, 57, $ . 

 Camponotus fallax, MAYR, Eur. Form., 36. 



Common in Southern and Middle Europe and North and South America. 





