632 REVISTA CHILENA DE HISTORIA NATURAL 



II. Yasiform orífice with a caudal comb of elon- 



gate finger like teeth graveli 



Yasiform orífice wíthout such comb but 



entire • • • • ■ • (í'<''pi^n 



III. Spínes latero-cephalad of the vasíform orífice 

 aud on caudal margín of pupa case short 



and vasíform purteri 



Sipnes latero-cephalad of the vasíform orí- 

 fice and on caudal margín of pupa case very 

 long and promínent; color varj^ng from 

 yellow to brown floccosa 



Aleiu'othrixus (Aleurothrixus) aepim (Goeldí)(LHm. 

 LXXII, G-J). 



' Aleurodes ai'pim Goeldí, Mítth. Sch^veíz. Ent. Gesell., 

 Yol. 7, 1886, p. 250. 



Thís form was descríbed origínally as from ^ Man- 

 dioca docex at Eío de Janeiro, and we have two coUectious 

 in the Burean, one from cassava (Maniliot utiUssnna Pohl) 

 at Río de Janeiro, taken by F. Xoack; the other takeu on 

 citrus at Sao Joao del Rey, and in Mínus, Brazil, by P. II. 

 Dorsett, January 5, 1914. None of the other decribed 

 specíes of AleurotJirijiíS has sub-raarginal spínes similar 

 to those descríbed by Goeldí. 



Aleurothrixus (Aleurothrixus) floccosa (Maskell) 

 (Lám. LXXIV, fig. M. 



Aleurodes Jioccosa Maskell, Trans. XewZealaudIust., 

 Yol. 28, 1896, p. 432. 



Aleurodes hórridas Hempel, Psyche, Yol. 8, 1899, 

 p. 394. 



Aleurotlirixm fioecosus Quaíntance and Baker, Journ. 

 Agri. Research, Yol. 6, 1916, p. 466, Fig. 3. 



Thís specíes which is closely related to hoirardi 

 Quaíntance has been collected in four of the South Amer- 

 ican countries. It is also abundant in the islauds off 

 the coast of South America and in Panamá and México. 

 The typical color phase aud that represented by the types 

 oí Jioccosa and horridus is the yellow one. All of the pupa 

 cases are a uniform yellow. Thís phase is by far the most 

 abundant in the colíectíon, beiug represented by 25 lots 



