1977] 
Legner & Moore — Platystethus spiculus 
163 
12 hr old manure 
Dry Pasture 
24-48hr old manure 
SAMPLE DATE 
Figure 8. Average density of Platystethus spiculus and Haematobia irritans 
larvae, in 12- and 24-48-hr-old bovine feces from dry pastures; Calexico, California 
| (+ l 05 Conf. limit shown above each mean). 
