434 BIOLOGICAL SUEVEY OF 



Tapinoma Foerster 



T. SESSILE Say. S. W. Harbor, July 11-Sept. 6; Station F173. 



DOLICHODERUS Luiid 



D. (Hypoclinea) plagiatus Mayr. Section 26, Aug. 7. 

 D. (Hypoclinea) taschenbergi Mayr. Eobinson Mt., Aug. 24. 

 D. plagiatus Emery var. S. W. Harbor, Sept. 6. 

 D. PLAGIATUS var. iNORNATus Wheeler. Breakneck Pond, Sept. 

 8. 



Lasius Fabricius 



L. (AcAXTHOMYOPs) cLAviGER Eogcr. Decr Brook, Station 



F218, one individual taken. 

 L. (AcAXTHOMOPs) INTER jECTus Mayr. Corfield, July 21. 



Scarce. 

 L. NIGER sub. sp. ALiENus Forst. var. americanus Emery. 



Under a barn Sept. 13. Stations F150 and F173. 

 L. NIGER var. sitkaensis Pergande. Long Pond; Bar Harbor; 



Corfield, June 27-Sept. 15. 

 L. uMBRATus sub. sp. MixTus var. APHiDicoLA Walsli. S. W. 



Harbor ; Green Mt., July 15-25 ; Pretty Marsh under stone, 



Aug. 21. Washed up on the shore of Bubble Pond in large 



masses, Sept. 7, '35. 



L. (ChTHONOLASIUS) UMBRATUS Nyl. sub. sp. SUBUMBRATUS 



Viereck. One specimen taken July 11, '29. 



Formica Linnaeus 



F. FUSCA Linn. Common, June-Sept. This species makes 

 large mounds. Near the foot of Western Mt. was a mound 

 that measured 7 X H feet, with an average height of 2 feet. 

 They spread very rapidly by forming small colonies. 



F. FUSCA var. algida Wheeler. One specimen was swept on 

 the top of Robinson Mt., Aug. 24, '34. 



F. FUSCA var. dubsericea Say. Around stones. New Mill Pond, 

 July 12 ; flying at Jordan Pond, Aug. 12 ; swarming in large 

 numbers, Seal Cove, Aug. 7. 



