358 PROCEEDINGS OF THE NATIONAL MVSEUM. vol.51. 



on dorsum. Vasiform orifice subcordate; operculum similar in 

 shape, almost filling the orifice, obscuring the lingula; orifice sur- 

 rounded by a definite trilobed figure, the lobes of which form a channel 

 from the orifice caudad to margin of case. 



Adult with a single flexure in radial sector of forewing and no spur 

 of media; wings usually marked with reddish. Antennae of seven 

 segments ; in the female, III longest. In the male, VII often as long 

 or longer than other segments together. 



Type. — Aleurolobus marlatti (Quaintance). 



KEY TO SPECIES OP ALEUROLOBUS. 



1. Submarginal area of pupa case without prominent spines 2. 



Submarginal area of pupa case with prominent spines setigerua. 



2. Pupa case dark brown or black, more or less convex 4. 



Pupa case whitish or yellowish, flat ; thoracic tracheal folds distinct 3. 



3. Without waxy secretion; case broadly elliptical; size 1.28 by 0.97 mm.; marginal 



pore of tracheal fold armed with three prominent rounded tooth-like lobes. 



Jlaviis. 

 With sparse waxy secretion, a secretion of stout waxy filaments from marginal wax 

 tubes spaced some distance apart, and finerand longerwax threads from submar- 

 ginal pores. Size 1.86 by 1.52 mm.; marginal pore of tracheal fold armed with 

 fine tooth-like lobes simulus. 



4. Eyespots prominent 5. 



Eyespots not present 10. 



5. Thoracic tracheal folds fairly distinct 6. 



Thoracic tracheal folds not discernible 7. 



6. Pupa case elliptical; size about 1.35 by 1.1 mm.; a short fringe all around of 



glassy wax rods from marginal wax tubes, and wliiter tufts of wax from pores of 

 tracheal fold; a pear-shaped wax figure on dorsum of abdomen, from which run 

 lines of wax along sutures to submarginal rim; marginal pores of tracheal folds 



on thorax armed with three rounded teeth marlatti. 



Pupa case subcircular in outline; female size 1.68 to 1.75 by 1.48 to 1.52 mm.; 

 male smaller; a short, more or less broken fringe all around of white wax from 

 marginal wax tubes, and two oblique transverse bands of tufted white wax on 

 marginal part of cephalothorax and a narrow longitudinal line of white wax caudad 

 of the operculum apparently marking position of the tracheal folds. . . .olivinus. 



7. Between submarginal area and dorsal disk, a band all around (narrowing at each 



end) of irregular dermal thickenings or markings 8. 



Without such band between submarginal area and dorsal disk 9. 



8. Pupa case broadly oval; size about 1.1 by 0.88 mm.; a short squarely trimmed 



wax fringe all around from marginal wax tubes taonabae. 



9. Pupa case elliptical; size about 1.08 by 0.78 mm.; dorsum completely covered 



with secretion of white wax; from marginal tubes there is a loose but abundant 

 secretion of grayish wax threads, and a narrow, square cut rim all around of wax 



concolorous with wax on dorsum philippinensis. 



Pupa case very elongate elliptical; size about 2.25 by 1.15 mm.; dense black in 

 color; margin bearing a fringe of rather long snowy white wax rods; dorsum 



sometimes dusted with wliite powdery meal barodensis. 



10. Pupa case elliptical; size about 1.4 by 1 mm.; a fringe all around of glossy wax 

 rods, compact basad and spreading distad; dorsum more or less covered with 

 glossy wax scales or plates; tracheal pores on margin indicated by bUobed or 

 trilobed structures solitarius. 



