226 Journal New York Entomological Society. [Voi.xvin.. 



two yellow spots on the scutellum. The tarsi and ends of the tibiae and femora 

 are brown. The anterior portion of the head is red or yellow, the antennae 

 dark red. The male is indistinguishable from that of niiuiitiis. 



Described from numerous specimens of all four phases from the 

 following localities: 



New York: Bronxville, Mosholu and White Plains, nesting in 

 hollow stems of elder and dead oak branches (Wheeler) ; West 

 Farms (J. Angus) ; Jamaica, L. I. (G. von Krockow). 



New Jersey: Lakehurst (Wheeler) ; Riverton (E. Daecke) ; West- 

 ville (Jerome Schmitt). 



The coloration of this variety is highly variable even in the 

 same colony. Some of the major workers have the gaster entirely 

 black, while others have the two basal segments largely yellow. The 

 maculation of the thorax is also rather inconsistant. Workers froirt 

 one colony taken at Lakehurst, N. J., have the spots very indistinct 

 and the head brown or yellowish like the thorax, so that they seem 

 to form a transition to the var. dccipicns. The specimens from 

 New York and New Jersey referred to sitbbarbatiis in my " Annotated 

 List of the Ants of New Jersey," p. 403, belong to the variety here 

 described. 



4. C. fallax fallax var. tanquaryi, new variety. 



Worker major. — Length 7-7.5 mm. 



Head and clypeus black ; cheeks, antennae and mandibles, except the 

 teeth, deep red ; apical" half of antennal funiculi infuscated. Thorax varying 

 from rich yellowish red to dark brown, legs paler. Gaster black, basal half 

 of first segment and a narrow band across the base of the second segment 

 yellow. Body shining ; foveolae on the cheeks and sides of the head numerous 

 and distinct. 



Worker minor. — Length 4.5-6 mm. 



Differs from the major worker in having the mesothorax and epinotum' 

 black or infuscated. Petiole dark red or brown ; yellow bands on gaster 

 more restricted and less conspicuous or almost absent. 



Female. — Length 7.5-8.5 mm. 



Differing from the major worker in having the epinotum and upper sur- 

 face of the thorax dark brown or black, the pleurre more or less spotted with 

 brown or brown throughout, the legs dark brown and the band on the second 

 gastric segment faint or lacking. In some specimens the first segment is. 

 entirely black. Wings colorless, with yellowish veins and stigma. 



Male. — Length 5-5.5 mm. 



Differing from the males of the preceding varieties only in having the 

 legs somewhat more reddish, except the middle portions of the femora and 



