October, 1901] 



PSYCHE. 



2C1 



found by me, with but three exceptions: 

 Stnimigenys sp. found by Dr. Forel and 

 Alonomorium p/iaraoiiis and Tclnvnoriinn 

 caespi/nm, found by Dr. Dimmock. It 

 does not appear, and it should not be 

 understood from anything which appears 

 in the above, that we know all the spe- 

 cies of ants in Massachusetts ; far from 

 it, for as a matter of fact only one city 

 and a part of four small country towns 

 have as yet been looked over to any ex- 

 tent. So if we ever do know, some one 

 must spend at least twenty-five years 

 (in Massachusetts alone) and after he 

 has got through another observer can 

 begin where the work was left off and 

 will find all that he wishes to do, as 

 there will always be new problems pre- 

 senting themselves for him to solve ; for 

 it is not only the ants' habits and the 

 number of species which are to be con- 

 sidered, but tlie thousands of other in- 

 sects which are to be found associated 

 with tliem. The following are all the 

 species thus far found to inhabit Mass. 



Formica sanj;iiinfa Lair., sulisp. nibicunda 

 Em. 



Formica riifa L. olxscuripes Ford. 

 " " sul}sp. integra Nvl. 



" exsectoides Forel. 

 " pallide-fulva Latr. 

 " " " .sul)sp. schaiifussii 



Majr. 



Formica pallido-fulva sul)s]i. nitidivenlris 

 Em. 



Formica pallidc-fiilva siil)sp. fuscata Em. 

 " t'usca L. 



" " var. subsericca Say. 



" " var. .siibaenescens Em. 



" " var. neoclara Em. 



" " siibsp. subpolita .M:i_\ r. 



" lasioidcs Em. 



" " var. picea Em. 



Lasius nigcr L. 



" " var. americaniis Em. 



" " " ncoiiiger Em. 



" lirevicornis Em. 

 " tlaviis L., sul^sp. myopes I'orel. 

 " iimbralus Ny!.. siilisp. mixlus Nvl. 

 " " subsp. a])hidicola Walsh. 



" claviger Rog. 

 Prenolepis impaiis Sav. 



" par\ula Mayr. 



Brachvmyrmex lieeri For., subsp. depilis 

 Em. 



Tritis Campo}wtidae, 



Camponotus Ijaeviatus Sm. 

 " castaneus Latr. 



" " siibsp. americanus 



Mavr. 



Camjionotus lierciileanus L. 



" " subsp. ligniperdus 



Latr. 



Campoiiotus herculeaniis var. pictus Forel. 

 " " sid^sp. pennsyl- 



vanica Deg. 



Camponotus marginatus var. nearcticus 

 Em. 



Camponotius marginatus var. minutus Em. 

 Poljergus rufescens Latr., subsp. lucidiis 

 Mavr. 



Tribe Dolichodcrithic. 

 Tapinoma sessile Sa\'. 



Tribe Poiicihhic. 



Ponera coarctata Latr., subsp. peiiiis\lvan- 

 ica Kuckl. 



Stigmatomnia pallipes llald. 



Tribe My> 



'(far. 



Myrmecina latreillei Cuit.. siilisp. ameri- 

 caua Em. 



Myrmecina latreillei Curl., var. brevis]iin- 

 osa Em. 



Monomorium minulum Mayr., var. mini- 

 mum Buckl. 



