72 THE COCCIDAE 



West Indies on cactus; champion! Ckll. from Panama, known only in 

 the male sex, transferred' from Tessarobelus which contains a single 

 species from New Caledonia; mexicanorum Ckll. from Mexico on Acacia; 

 primitiva Towns, from Mexico on "Nettle-tree;" uhleri Sign, from 

 Ecuador; luzonica Ckll. from Philippine Islands. The following table 

 based upon one published by Cockerell will aid in the separation of 

 the American species: 



SPECIES OF LLAVE'IA 



a. Body large, length of adult female 15 to 25 mm. 



b. Body with scant pubesence; length 15 to 18 mm.; antennae short, 

 segments, except the distal, broader than long ------- bouvari Sign. 



bb. Body with abundant pubescence; length 23 to 25 mm.; legs and 

 antennae reddish. 



c. Species from Mexico; antennae with cuticle densely covered 

 with short setae, segments two to eight times as broad as long, 

 nine and ten broader than long. __________________ axin Llave. 



cc. Species from Ecuador. __________________________ uhleri Sign. 



aa. Body small, length of mounted specimens of adult female about 7 



mm.; legs and antennae dark sepia brown. 



b. Cuticle of body densely covered with setae; antennae long, seg- 

 ments two to six not twice as broad as long, segments six to ten 

 longer than broad, segment eleven narrow and cylindrical ------- 



primitiva Towns. 



bb. Cuticle of body with minute, sparse, scarcely noticeable setae; an- 

 tennae short, segments two to eight twice as broad as long, seg- 

 ments nine and ten considerably broader than long, segment 

 eleven oval. _________________________________ mexicanorum Ckll. 



Palaeococcus Ckll. _ The following species are included in this 

 genus: australis Mask, from Australia on Hakea; braziliensis Walk. 

 from South America; ewarti Newst. from West Africa on "Peppet;" 

 fortis Ckll. from Natal on Eucalyptus; fuller! Ckll. from Natal on grass; 

 fuscipennis Burm. from Europe on oak, maple, fir, pine; hellenicus Genn. 

 from Greece on Pinus; mexicanus Ckll. & Parr, from Mexico on Prosopis; 

 morrilli Ckll. from Arizona; nudatus Mask, from Australia on Cosmos, 

 Verbena; plucheae Ckll. from New Mexico on Pluchea; pulcher Leon. 

 from Java on Ilex; rosae R. & H. from Florida, Jamaica, Mexico on Am- 

 herstia, Euphorbia, Prosopis, rose, sugar-apple, lime, lemon, lignum-vitae; 

 theobromiae Newst. from Calabar, West Africa on Cacao; townsendi Ckll. 

 from New Mexico on Townsendia, Gutierrezia, Picradenia, Grindelia, 

 Bahia. Ferris has studied three of the above species, morrilli Ckll., plu- 

 cheae Ckll., and townsendi Ckll. Each of these species has a large 

 marsupium in the adult female which opens on the ventral aspect just 

 caudad of the metathoracic legs. The opening after it is filled with eggs 

 is closed by a flap of wax. These species may not be congeneric with the 

 type of the genus, fuscipennis Burm. 



Guerinella Fern. This name was proposed by Mrs. M. E. Fernald 



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