33^ Bulletin American Museum of Natural History. [Vol. XXII, 



specimens of this variety were taken under stones at the Indian 

 Garden in the same places as the preceding. A similar variety of 

 M. americana occurs also in the creek bottoms of Travis County, 

 Texas. 



3. Cremastogaster lineolata 5ay. — A single worker of this species, 

 near the subspecies coarctata Emery var. m-ormomim Emery, was found 

 running on the wall of the canon at an elevation of about 5000 feet. 



4. Monomorium minutum Mayr var. minimum Buckley. — Common 

 under stones in the Kohonino Forest and near the Indian Garden. 

 The colonies were in all respects like those found in Texas and New 

 Jersey. This variety ranges as far north as Colorado and Massa- 

 chusetts. 



5. Solenopsis geminata Fabr. var. aurea var. nov. 



Worker. Length 2-3.5 rnm. 



Deep yellow; mandibles and posterior margins of gastric segments brownish; 

 mandibular teeth black. 



Female. Length 5.-5.5 mm. 



Deep yellow, like the worker; each gastric segment with a broad brown 

 band, the one on the first segment sometimes nearly or quite interrupted in the 

 middle. Wings whitish hyaline, with yellow stigma and veins. Each ocellus 

 with a small brown spot near its inner margin. 



Male. Length 5 mm. 



Piceous brown; upper surface of head, thorax and gaster darker; mouth- 

 parts, antennae, thoracic sutures and legs yellow; genitalia somewhat paler. 

 Wings as in the female. 



The types of this variety are from Mt. Bonnel near Austin, Texas. 

 It is undoubtedly distinct from the typical form of the species, differ- 

 ing in its smaller size, much paler coloration, and in living in rather 

 small colonies under stones in dry, stony situations. It appears to 

 be nocturnal or hypogaeic, unlike the typical geminata, which is found 

 abroad at all hours of the day. I have taken the variety also at Fort 

 Davis, Texas, on the dry summit of the Crouching Lion, and there are 

 two specimens from Visalia, California, in my collection. A few 

 workers were found under stones in the bottom of the Grand Cafion 

 near the river. 



6. Pheidole vinelandica Forel. — A few colonies of this species 

 were seen along the Bright Angel Trail just above the Indian Garden 

 at an elevation of about 3700 feet. It is common in central Texas 

 and occurs near Colorado Springs, Colorado, at an altitude of 5000 

 to 6000 feet, extending north and east as far as New Jersey and 



