Baker & Moles. — the aley rodid.i-: of south america 619 



dication of the cubitus. The parouychiura is represented 

 by a large spine and the pupa case has large compound 

 wax pores. A study of the forms indicates three sub- 

 genera. 



Tjjpe. — Aleurodiciis anonae Morgan. 



Keii to the suhgenera of Aleurodicus 



I. Lingula of pupa case long, spatula teor couic- 



al, exserted; liugula of adult loug, narrow 



aud included ... — 2 



Liugula of pupa case short, couical, usually in- 

 cluded; lingula of adult broad, rounded, and 

 exserted subgenus Me f al enr odiáis 



II. Sides of pupa case ñat, not deflexed under 



the ventral surface; vértex of adult roun- 

 ded subgenus Aleiirodicus 



Sides of pupa case deñexed under ventral surfa- 

 ce; vértex of adult slightly biiobed 



subgenus Lecanoideiis 



We have only one example each of the subgenera 

 Leainoideus and Metaleurodlciis in the South American 

 collectiou,and these •dreJleiirodicusiLecanoideus) g'iganteiis 

 Quaintance and Baker, and Aleurodicus (Metaleurodicus) 

 pigeanus Baker and Moles. It has not seemed wise to in- 

 clude anonae C'urtis, conspiircatus Euderlein nov phalae- 

 noídes Blanchard in the key of the subgenus Aleurodicus. 

 The descriptious of anonae and phalaenoides are too vague 

 and the iram ature stages of conspurcatus are as yet 

 unkuown. 



Keg to the species of the subgenus Aleurodicus 



I. Dorsal disk as well as submarginal área cover- 



ed with nuiuerous simple pores neglectus 



Dorsal disk without simple pores, but the sub- 

 marginal área all around witli v(!ry many 

 forming a band 2 



II. Pupa case with two large, dark latero-dorsac 



áreas extending the full length of the case. puJrinatus 



