506 WHEELER. 



shovel-shaped, transverse lobe, which is prolonged as a low membran- 

 ous ridge for a short distance along the posterior edge of the joint. 

 Frontal carinae suberect; frontal area small but distinct, triangular. 

 Epinotal spines shorter than the base of the epinotum and than 

 their distance apart at the base, straight, slender and acute. Sculp- 

 ture of the mandibles, head, thorax and pedicel sharp but rather loose 

 and the punctuation of the interrugal spaces very shallow, so that the 

 surface is much more shining than in the other varieties of schencki. 

 Rugae of the pro- and mesonotum very coarse, vermiculate, indistinctly 

 longitudinal. Middorsal portion of postpetiole rather smooth and 

 shining, somewhat as in the var. dctritinodis Emery. 



Pilosity rather long, abundant, coarse, erect and blunt on the 

 body, appressed on the legs. 



Color brownish yellow; scapes and legs of a clearer, paler yellow; 

 head more brownish above; first gastric segment dark brown. 



Male. Length 3.8-4.9 mm. 



Antennae much as in the var. tahoensis, the scape being distinctly 

 shorter than the three basal funicular joints together. Surface of 

 body shining, feebly sculptured; head finely and densely punctate, 

 with indistinct rugae; the rugae on the thoracic dorsum also very 

 faint. Protuberances of epinotum very blunt. 



Color brown; head darker; mandibles, thoracic sutures, margins 

 of gastric segments, antennal clubs, legs and tarsi, except the middle 

 portions of the femora and tibiae, brownish yellow. 



Described from a dozen workers and nine males taken by myself at 

 Buena Vista, Colorado. 



This is a very distinct form, which in the larger lobe of the antennal 

 scapes approaches the typical European schencki more closely than do 

 either of the varieties tahoensis or emery ana. There are, however, in 

 the Eastern States one or more large, dark, undescribed varieties which 

 have a similar extensive antennal lobe. 



22. Myrmica {Neomyrma) bradleyi Wheeler. 



California: Glacier Point, Yosemite, 8000 ft. and Tallac, Lake 

 Tahoe 6000 ft. (Wheeler). 



This form was recently redescribed by Forel as Aphaenogasfer (Neo- 

 7)iyrma) calderoni from specimens taken by Calderon in the Lake Tahoe 

 region. The types were taken by Prof. J. C. Bradley in Alta Meadow, 

 Tulare Co., Cala., at an altitude of 9500 ft. It nests under stones in 

 rather dry, sunny places and in habits closely resembles M. {N .) 

 mutica Emery. The localities for this and two other species are here 



