532 WHEELER. 



in Palmer's Canyon, San Gabriel Mts., near Clareraont, Cala., at an 

 altitude of about 2000 ft., and a single female from the same moun- 

 tains (F. Grinnell). 



94. Lasius (Acanthomyops) interjectus subsp. coloradensis subsp. 

 nov. 



Worker. Very similar to the preceding subspecies and of the same 

 size but with distinctly larger eyes and finer and conspicuously more 

 abundant erect hairs on the head, thorax and especially on the gaster. 

 The proportions of the scape and funicular joints and the shape of the 

 thorax and petiole are the same as in californicus. 



Female. Length 4.5-5 mm. 



Decidedly smaller than the female of californicus, with the head as 

 well as the thorax deep castaneous. Mandibles, antennae and legs 

 brownish yellow, the femora somewhat infuscated in the middle. 

 Wings grayish hyaline, not darker at the base, the veins and stigma 

 pale. Petiole less deeply emarginate above and much narrower than 

 in californicus. Erect hairs on body more abundant. 



Male. Length 3 mm. 



Much smaller and more pilose than the male of the typical inter- 

 jectus, with uniformly grayish, hyaline wings. The superior petiolar 

 border is noticeably blunter and the funicular joints are distinctly 

 shorter. 



Described from a dozen workers and as many females taken by 

 myself at Manitou, Colo, (type locality), Aug. 9, 1903, six workers, 

 seven females and two males taken by Mr. E. Bethel at Denver, a 

 single dealated female taken by Prof. Cockerell at Las Vegas, New 

 Mexico and three workers from Manzanares in the same state (Mary 

 Cooper). 



95. Lasius {Acanlhomyoys) interjectus subsp. arizonicus subsp. nov. 

 Worker. Length 3.5-4.5 mm. 



Larger than californiciis and coloradensis but somewhat smaller 

 than the typical interjectus and of a slightly paler yellow color. The 

 proportions of the antennal scape and funicular joints and the shape 

 of the thorax are much the same as in interjectus, but the petiole is 

 much smaller and narrower. The eyes are considerably larger and 

 more convex. The erect hairs on the head, thorax and gaster are 

 much fewer, there are usually no hairs on the gula, and the pubescence 

 on the body and especially on the gaster is much shorter than in typical 

 interjectus so that the surface appears very glabrous and shining. 



