There is a kabuto that spawns at a currently unknown time, and despawns at 7:30 pm. It was cp 303 for me, but it definitely varies by trainer level. It is located at point 76. If it doesnt save to the map, then to describe the location:

28th and Iris intersection. Look for safeway. Zoom in on that quadrant of the intersection. Find boulder wine and spirits, right next to safeway, then place the marker to the right, level to the liquor store. The pin should be placed no further to the right than 28th street, and no further down than the T-mobile store. Coordinates: 40.03549, -105.25871 I will be checking in daily to try and figure out a solid spawn time. There is also a tauros spawn close by, and i have caught 3 of them in the exact same spot. Unsure of the spawn time currently, but is near the coordinates: 40.03828, -105.26138 The coordinates for tauros arent perfect yet, but is a close estimate, and traveling to that pin should at least bring him up on your nearby list. The kabuto pin is 100% accurate. You're welcome :3