178 Journal New York Entomological Society. [Voi. xvii, 



Forel of Spain, afcr Emery of Spain and Algeria and rcJibinderi 

 Forel of the Caucasus. The new subspecies may be regarded as an 

 alpine form of hnbcri, since it occurs at a considerably greater eleva- 

 tion (over 1,500 m.) than the type. I subjoin a brief description with 

 some notes on the colonies which I found : 



Strongylognathus huberi alpinus, new subspecies. 



Worker. — Length 2.5-3.5 "in^- (Fig- i> Q- 



Differing from the worker of Iniberi as follows : Head somewhat broader 

 and more robust. Epinotum unarmed, the small, pointed teeth of huberi being 

 replaced by rather blunt angles. Summit of petiolar node in profile distinctly 

 rounder and blunter and less compressed anteroposteriorly. Postpetiole twice 

 as broad as long (decidedly longer in proportion to its width in huberi). 

 Whole upper surface of pro- and mesonotum smooth and shining (shining 

 area in huberi more restricted). Coloration in general much darker; head 

 with a larger oblong, black or dark brown spot, as broad as the distance be- 

 tween the frontal carinas, reaching from the clypeus nearly to the occipital 

 border and rather sharply marked off on the sides from the paler, brownish 

 yellow color of the cheeks. In the typical huberi the front and vertex are 

 only slightly darker than the remainder of the head or, at any rate the dark 

 area is not distinctly marked off on the sides and behind. 



Epinotum of olpinus darker than the pro- and mesonotum, the petiole and 

 postpetiole still darker. Infuscation of the gaster also decidedly deeper than 

 in huberi, all the segments being dark brown or blackish, with yellowish bases. 

 Legs brownish yellow, with dark brown articulations. 



Female.- — Length 4-4.6 mm. (Fig. i, D). 



Differing from the female of huberi in the following particulars : Head 

 decidedly larger and broader, rectangular, not narrowed behind, less than one 

 and a fourth times as long as broad. Epinotum with blunt angular projections 

 in the place of the stout teeth of huberi. Upper border of petiole sharp but 

 not compressed at the very summit. Postpetiole trapezoidal, distinctly broader 

 in front than behind, with broadly rounded anterior corners and straight 

 sides. Sculpture, pilosity and color as in the typical hnbcri. 



Male. — Length 4.5-5 mm. 



Differs from the male of huberi only in having decidedly blunter epinotal 

 angles. 



Described from numerous workers and females and two males 

 taken from the nests described in the following notes : 



I. August 13. The first colony of alpinus was found less than a 

 kilometer below Zermatt at an altitude of about 1,620 m., on the 

 warm western slope of the Matter valley, where there was no end of 

 Tetramorium colonies under flat stones. The nest containing the 

 alpinus was of small size and under a single stone. The alpinus 



