ALEURODicus (metaleurodicus) altissimus. 73 



folded under the case and ends in a series of closely set, superimposed 

 wax tubes (PI. XXVI, fig. 5). Vasiform orifice (PL XXVI, fig. 3) 

 broadly cordate, considerably wider than long. Operculum short and 

 broad. Lingula large, protruded, arrow-shaped, with two pairs of 

 spines, distally. On ventral surface, legs and antennae very evident. 

 Basal segment of legs large, subglobose ; distal segment longer than 

 basal, finger-like, ending in a single strongly curved claw ; antenna) 

 long, numerously ringed as usual. 



Adult. — The adult we have not seen. It differs from giganteus in 

 being smaller, and in the wing markings as described by Cockerell. 



Subgenus METALEURODICUS n. subgenus. 



Forewing with the venation of Aleurodicus^ but with radius^ much 

 longer; antenna and feet similar to Aleurodicus; vertex rounded; 

 claspers of male short and thick; penis rather long; pupa case with 

 compound wax pores, but these are different from those of Aleurodi- 

 cus., being of the type illustrated in Plate XXVI, figure 3 ; lingula of 

 vasiform orifice of pupa setose, short, included, and armed with four 

 spines; that of adult broad, large, and exserted. Size small. 



Type, minimus Quaintance. 



Species of Subgenus Metaleurodicus. 



A. Abdomen of piipn case with Ave pairs of equal sized compound pores and 



on cephulo-median portion of abdomen a stellate structure surrounded 

 by simple pores alti^aimus. 



B. Abdomen of pupa case with five pairs of compound pores of which the caudal 



are the largest; forewing with a dark macula within the radial 

 fork minimus. 



C. Abdomen of pupa case with four pairs of compound pores; forewing with 



a dark macula below the radial sector cardim. 



Aleurodicus (Metaleurodicus) altissimus (Quaintance). 

 (PI. XXVT, figs. G-11; PI. XXIX. fig. 2.) 



AleurodcK dUisxinui Quaintance, Tech. Ser. 8, Div. Ent., U. S. Depl. Agr., 

 p. 20, (1900). 



ORIGINAL DESCRIPTION. 



Larva. — Size about O.SO by 0..'"»2 mm. ; yellowish white. A series all around 

 of about .30 setio. On dorsum are 5 pairs of moderately developed setie, a pair 

 on cephalic segment, a pair on each of the thoracic segments, and a pair at 

 vasiform orifice. Margin of case slightly crenulated. On the dorsum a few 

 jiores may occur somewhat promiscuously, and there are a few groups of pores 

 around the margin. This stage in many respects approaches quite clos<^ in 

 structure to the pupa-case. 



Pupa-case. — Size about 1.79 by 1.2G mm. ; subovate, narrowed cephalad. Color 

 of young pupsB, yellowish to white, and usually without other coloration. In 



