HEMIPTERA — APHINA. 



273 



vittatus Quain. 

 weilmanac Bemis. 



merlini Bemis 



COCCID/E. 



This family includes some if the worst insect pests in the state. See Cali- 

 fornia Bulletins -Ali, 222, 223 and 226. 

 Aclerda califo.nica (Ehr.) 



tokionis Coc. 

 Antonia crawii Coc. 



Aonidia aurantii — Aonidiella. /"" 



Aonidiella aurantii Naoh. 



Figure 254. Venation 



Coccid*. 



^S'ijWi?-*^ 



ii*te .!* i 





23?- 



Fig-ure 255. 1. 

 twig of lemon. 



Red scale on lemon. 2. Red scale on nigrhtshade. 3. Red scale on 



Figure 256. 1 Different stag'es in formation of scale covering. 2 The ventral scale 

 formed beneath the insect. 3 Old and young red scales on orange. 4 Larva of para- 

 site. Aphelinus diaspidis, feeding on Red scale; the scale shriveled from abrorption 

 of body contents. 5 Yellow scale containing pupa of parasite Aspidiotiphagus citri- 

 nus. (Opposite page) 



