520 WHEELER. 



Pennsylvania: Beatty (P. J. Schmitt). 

 Connecticut: Colebrook (Wheeler). 



70. Sfcfiamma hrevicorne subsp. hraiki Wheeler. 

 California: King's River Canyon (H. Heath). 



Easily recognized by its uniform light red color and coarse sculpture. 



71. Stenamma hrevicorne subsp. sequoiarwn subsp. nov. 

 Worker. Length 3-3.3 mm. 



Resembling the subsp. hcathi but larger and of the same color as 

 diecki, with even coarser sculpture than the former, the rugae on the 

 head being stronger and those on the pronotum very coarse and sparse, 

 more longitudinal and less reticulate. The postpetiole is evenly and 

 sharply longitudinally rugose and the rugae at the extreme base of the 

 gaster are very distinct. The base of the epinotum is coarsely and 

 vermiculately rugose. Head broader and the postpetiole distinctly 

 longer than broad, its node lower and less convex than in diecki and 

 heathi. The basal funicular joints are broader and slightly longer 

 than in the other subspecies of hrevicorne. Hairs on the body less 

 abundant and more appressed, especially on the gaster and tibiae. 

 Surface of the head, thorax and pedicel distinctly shining as in heathi 

 and somewhat more opaque than in diecki. 

 Female (dealated). Length 3.6 mm. 



Resembling the worker; larger than the female diecki, with more 

 robust thorax and the whole body paler and more reddish. The sculp- 

 ture is coarser, the upper surface of the mesonotum and scutellum more 

 sharply longitudinally rugose. Funicular joints longer, hairs on the 

 legs more appressed. 



Described from a single female and numerous workers taken from 

 several colonies nesting under stones among the large red-wood trees 

 in Muir Woods on Mt. Tamalpais, Cala. A series of workers taken by 

 Prof. H. Heath several years ago at Pacific Grove, Cala. appear to 

 connect this subspecies with diecki. They are somewhat smaller than 

 the specimens of sequoiarum and have a more convex postpetiole, which 

 is longitudinally striate only on the sides and smooth and shining 

 above. The head is somewhat more elongate and the basah funicular 

 joints narrower and shorter. Both these specimens and those of 

 sequoiarum may represent the unknown workers of 8. nearcticum. 



72. Stenamvia manni W'heeler. 



Known only from worker and female specimens taken by Dr. W. M. 

 Mann at Chico in Hidalgo, Mexico. 



