Cents, Bleir 1974 Journal April 10 10 mi. N. was Hole, Madrone Co., Arizona. They were pregnant. The presence of 40 g. young indicates that this population first baled about Feb 20-Mar 1 and if any & & are pregnant it will be with their second litters of the year ( if D. microps was a post- partum estrous). All heavy females had elongated, pink nipples, although I couldn't express milk from any. In the morning the traps held the following: 1 g D. microps ( 4 ad. & , 7 ad. st, 1 juvenile) 2 male females were found; one may have had a copulatory plug in place, at-67g. Most males weighed 80-90 g. There were all released. One female, 67g was dead of exposure. I autopsied her and found her to be malignant. The juvenile, wt- 47g, was released. It is interesting that almost all females were taken in the 12:00 midnight run, whereas almost all males were captured in the morning run. Further work needs to be done to establish the suggestion that the sexes separate the habitat temporally as before; D. neviusi (6) were captured. These at D. microps summer complexes. I collected some of the shrub