300 



GUIDE TO CALIFORNIA INSECTS. 



Fig'uie 3^6. LecaniTim quercifex on oak. Figure .301. Black .scale on orang'e. 



Figure 306. Antennse and anal lobes. 1 Sais.setia olea?. 2 Lecanium pruinosum. 3 

 Coccus hesperidum. 4 Lecanium corni. 



Figure 307 Photomicrographs of derm poi'es. 1 Saissetia olecc. 2 Saissetia hem- 

 isphserica. 3 Lecanium corni. 4 Lecanium. 4 Lecanium pruinosum. 5 Lecanium sp. 

 on Heteromeles. 6 Coccus hesperidum. (Opposite page) 



