144 THE COCCIDAE 



scattered about, all other cerari with two; cerari with auxil- 

 iary setae; dorsal setae shaped like ceraran setae and as 

 large as smallest of them; anal ring setae longer than 

 diameter of anal ring. Phenacoccus betheli Ckll. Canada, 



Michigan, Illinois, Arizona on Amelanchier, Crataegus. 



dearnessi King, 

 dd. Anal setae and anal ring setae subequal, former never twice 



as long as latter. 



e. Anal cerari with about ten ceraran setae, all other cerari 

 with three to six, these setae slender and sharply pointed; 

 cerari without auxiliary setae; tricerores of cerari few, 

 scarcely exceeding setae in number; dorsal setae almost 

 lacking and extremely minute; anal setae equal to or trifle 



shorter than anal ring setae. California on Eriogonum 



eriogoni Ferris. 



ee. Anal cerari with ten or more ceraran setae and numerous 

 scattered tricerores; penultimate pair of cerari with five 

 to eight ceraran setae and numerous tricerores; cephalic 

 two or three pairs of cerari with four to six ceraran setae 

 and eight to ten tricerores ; all other cerari with two 

 ceraran setae and cluster of eight to ten tricerores; cerari 

 without auxiliary setae; dorsal setae few, small, in part 

 slender and in part like ceraran setae; anal ring setae 

 somewhat longer than diameter of anal ring and about 

 equal in length to anal setae. New Mexico, Arizona, Cal- 

 ifornia on Helianthus, Pluchea, Solanum, Baccharis, 

 Ptiloria. heliantM Ckll. 



Heterococcus Ferris. A genus containing a single species, arenae 

 Ferris from California on Poa. 



Ceroputo Sulc. The type of this genus is pilosellus Sulc from 

 Europe. The other species are from America, as follows: ambigua Full- 

 away from California on Salicornia; bahiae Ehrh. from California on 

 Bahia; barberi Ckll. from Antigua, New Mexico on Thunbergia, Alla- 

 manda, Coleus, Croton; calcitectus Ckll. from New Mexico on grass; 

 koebelet Ehrh. from Arizona on Quercus ; lassiorum Ckll. from New Mexico 

 from nests of Lasius; orthezioides Ckll. from Mexico on roots of dock- 

 weed; yuccae Coq. from Antigua, Mexico, California on Yucca, Lantana, 

 Mimulus, Ceanothus, banana, orange, lime, etc. Ferris writes as follows 

 on this genus: "I consider Ceroputo to be strictly a synonym of Puto. 

 The former was separated from the latter solely on the basis of the pres- 

 ence of but six hairs on the anal ring and of non-clubbed digitules." 



Ehrhornia Ferris. This genus contains two species, cupressi 

 Ehrh. on Cupressus and graminis Ferris on grass. Both species are from 

 California. 



Trabutina Marchal. A single species is included, elastica Marchal 

 from Algeria on Tamarix. 



Puto Sign. The type of the genus is antennata Sign, from France 

 on pine. There is a described American species, the Pseudococcus cu- 



