72 THE COCCIDAE 



West Indies on cactus; championi 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 LLAVETA 

 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 louvari 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. 



Palaeococeus 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. 



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



