172 



[NJUBIOUS \M» BENEFICIAL [NSECTS OP CALIFORNIA. 



Nature of Work.- The Leaves and stems are attacked but the scale 

 has qo1 proven to be a pesl excepting in greenhouses. 



Distribution. — The European Fiorinia is often taken in quarantine 

 and occurs in greenhouses, parks and ornamental gardens in the State. 



Food Plants. -Anthurium acaule, betel nut, camellia, coconut, 

 cypress, English ivy, Perns, India rubber, Kentia sp., Leptospermum, 

 Livistona, olive, ivory-nut palm, 

 Podocarpus, sago palm and tea 

 are fond plants. 



Control. -Control measures are 

 the same as for the Aspidistra 

 scale. Ill michionaspis aspidistra 

 Sign. i. 



THE EUROPEAN OR ITALIAN 



PEAR SCALE 



Epidiaspis i>Jiici>hi (Del Guercio) 



i Ygpidiotus piricola Del Guercio) 



( Fig. i 50 i 



Description. — Tli e female scale 

 is nearly circular or slightly elon- 

 gated, glossy dark" gray with a 

 dark brown central exnvia. The 

 body is dark wine-red or purplish, 

 which readily distinguishes it 

 from the scale insects usually 

 found on fruit trees. The scale 

 of 1 lie male is smaller than that of 

 the female, long and narrow and 

 pure white with a single median 

 longitudinal carina and yellow 

 exnvia. The length of the female 

 >calc is about ,',., inch and the 

 male one half as much. 



Life History.— The life history 

 does not greatly differ from thai 

 of the scurfy scale. Chionospis 

 furfura I Fitch). 



Distribution. - The distribution 

 of tins scale appears to he limited 

 to the San Francisco Bay region, 



having keen taken in Alameda. Solano. Santa Clara and Napa counties. 

 It was recently taken on a shipment of mountain holly from (foleta. 

 Santa Barbara County, by A. A. Brock at Ventura. 



Food Plants. The apple, currant, mountain holly, peach, pear, 

 plum and prune are the known hosts, of the European or Italian pear 

 scale in ( 'alifornia. 



Control. — This scale can he controlled with practically the same 

 remedies as are recommended for the San -lose scale. Mr. Paul 1\. 



Fig;. 150. — The Italian pear scale, Epi- 

 diaspis piricola (Del Guercio). The scales 

 are located among the lichens on an apple 

 twig. Enlarged twice. (Original) 



