HENRY J. FRANKLIN. 353 



20 and 21, and it seems probable that the examination and 

 measurement of a large number of specimens would com- 

 pletely fill up this gap. The following subspecies and color 

 variants seem distinct enough for recognition and descrip- 

 tion : 



Subspecies vagans. — The typical form described above ; 

 the following color variants grade completely into it : 



Color Variant I. — Queen and worker like the typical form, but with 

 only the basal portion of the second dorsal abdominal segment covered 

 with yellow pile. Numerous specimens from New Hampshire, Massa- 

 chusetts and Ontario. I have seen specimens of this color variant 

 taken from the same nest with specimens of the typical form. 



Color Variants. — Queen and worker like the typical form, but with 

 the extreme side margins of the third and fourth dorsal abdominal 

 segments bearing yellow hair and the fifth dorsal segment entirely 

 covered with yellow pile. Several specimens from Massachusetts and 

 Ohio. 



Male Color Variant I. — Like the typical male, but with the third 

 dorsal abdominal segment largely covered with yellow pile (thus 

 approaching closely to the coloration of the perplexus male, but in 

 vaga7ts this third segment is always distinctly darker than the second) . 

 Several specimens from Massachusetts. 



Male Color Variant 2. — Like the typical male, but with the side 

 margins of the third and fourth dorsal abdominal segments bearing 

 yellow hair and the fifth and sixth dorsal segments entireiy covered 

 with yellow pile. Several specimens from New Hampshire and Massa- 

 chusetts. 



Subspecies sandersoni. Subsp. nov. — Queen, like the queen 

 of subspecies vagans, but with pile of distinctly finer tex- 

 ture ; malar space not longer than its width at apex, about 

 one-fifth as long as the eye (this is the short end of the varia- 

 tion tabulated above). Dimensions on the average smaller 

 than those of subspecies vagans queen ; length, Vl\ mm. to 

 15 mm. ; spread of wings, 27 mm. to 32 mm. ; width of ab- 

 domen at second segment, 7 mm. to 9 mm. 



Described from seventeen queens (cotypes), deposited in 

 the following collections : New Hampshire College of Agri- 

 culture, Massachusetts Agricultural College, American Ento- 

 mological Society and United States National Museum. I 

 take pleasure in naming this subspecies for Prof. E. D. 

 Sanderson. I have seen specimens of it from New Hamp- 



TRANS. AM. ENT. SOC, XXXVIII. (45) 



