Dec. i897.] TOWNSEND : CATALOGUE OF MEXICAN CoCCID.E. 185 



Lecanium perditum Ckll. (n. sp.)- Xcolak (Yucatan). On 

 Ficus sp., May lo, 1896. Coll. Towns. 



Peculiar to Mexico. Professor Cockerell says: "This is a most 

 interesting species, and must go in Eulecanium, a subgenus heretofore 

 confined to the Holarctic region. It is very close in many respects to 

 Z. antennatum, Signoret, of the northeastern United States (on oak). 

 At the same time, it indicates an approach from Eulecanium to the neo- 

 tropical forms Z. bataf(s, Ckll. (Antigua, on roots of sweet potato), 

 and Z. baccharidis, Ckll. (Brazil, on Baccharis), two species, the rela- 

 tionships of which had heretofore been wholly obscure." 



Lecanium, sp. n. (?) San Luis Potosi (S. L. P.). On pods of 

 Tecoma stans , Oct. 12, 1894. Coll. Towns. 

 Peculiar to Mexico. 



Leconopsis dugesii Sign. Mexico (probably Guanajuato). 

 Plant unknown. Coll. Duges. 

 Peculiar to Mexico. 



Aspidiotus rapax Comst. Northern Tamaulipas (probably). 

 Found in great numbers on oleander at Point Isabel, Texas, June 8, 

 1895. Coll. Towns. 



Known elsewhere in Florida, New Mexico, California, Antigua. 

 Aspidiotus tricolor Ckll. (sp. n.). Near Salini Cruz (Oaxaca). 

 On shrub not identified. May 29, 1896. Coll. Towns. 



Peculiar to Mexico. ' ' Very near to A. rapax, Comst. , and ^. ulmiy 

 W. G. Johnson, but seems distinct. The three species constitute a lit- 

 tle group. A. ulmi is from Illinois " (Ckll.). 



Aspidiotus nerii Bouche. {a) Chihuahua (Chih.). On olean- 

 der, rose, olive, and tree called '' palo dulce,'' Oct. 19, 1894. Coll. 

 Towns, {b) Aguas Calientes (A. C). On oleander and shrub called 

 ^^trueiior Oct. 11, 1894. Coll. Towns. (0 San Luis Potosi (S. L. 

 P.). on ''truenor Oct. 12, 1894. Coll. Towns. (^) Guadalajara 

 (Jalisco). On Yucca sp., Oct. 9, 1894. Coll. Towns, {e) Matamoros 

 (Tamaulipas). On Melia azedarac, June 6, 1895. Coll. Towns. 



Known elsewhere in eastern United States, California, Honolulu, 

 Australia. 



Aspidiotus crawii Ckll. (sp. n.). Mexico (locality not known). 

 On twigs said by owner to be sarsaparilla, but which are pronounced by 

 both Craw and Cockerell to be grape vine. Coll. Craw on plants enter- 

 ing port of San Francisco. 



Peculiar to Mexico. ' 'Closely allied to A. cydonice, Comst." (Ckll.). 



