140 
Psyche 
[December 
3. Epinotal spines about one-half as long as the distance 
which separates their bases and rather strongly di- 
rected upward ; pronotum with the rugse usually lat- 
eral in position : minutissima missouriensis 
Epinotal spines less than half as long as the distance 
which separates their bases and directed more back- 
ward than upward; pronotum with two prominent 
rugse near the middle: minutissima minutissima 
