1903.] H. W. Peal— Monograph of the Oriental Aleurodidse. 73 



one on each side near margin of 3rd, 4th, 5th, and 6th segments and 

 two on 7th. There are 26 pores in the inner series, 14 on the abdominal 

 and 12 on the cephalothoracic region. The abdominal pores are situated 

 two on each side near margin of the 3rd segment, one on each side 

 near margin of 4th, 5th, and 6th segments and two similarly placed on 

 the 7th segment. There are also two rows of similar pores down centre 

 of dorsum on the abdominal segments. The rows are placed fairly close 

 together. There are in all 6 pores in each row, 1 pore of each row be- 

 ing placed on abdominal segments 1 to 6. The pores are large, rims 

 slightly elevated above dorsum. All the pores secrete globules of 

 liquid. Ventrally on margin a series of fine pores which secrete a 

 quantity of wax. This fringe of wax is vertical and about *15 mm. in 

 length. It elevates the pupa off the leaf. The vasiform orifice is pro- 

 minent and is extremely characteristic. It is situated in a large depres- 

 sed pit. The pit is conical apex pointing caudad. Apical and basal 

 margins flat, the apical margin being if anything a trifle incurved. 

 Lateral margins rounded, basal ends being curved to meet basal margin. 

 Sides from centre to near apical margin flat, then sharply incurved to 

 meet apical margin. Edges dark brown, an outer edge of light brown. 

 The sides slope inwards. Apical end [of pit shallow, the floor sloping 

 down to the anterior end at which point the pit is deepest. Floor of pit 

 highly rugose, with seven dark wavy brown lines forming the demarca- 

 tions of the ridges. These ridges vary in different individuals. A 

 clear light yellow area around vasiform orifice. Vasiform orifice oval, 

 posterior margin slightly incurved. Anteriorly the margin projects be- 

 yond and can be seen below basal edge of pit, showing that the pit's 

 basal edge overhangs at the top. Edge of vasiform orifice tinged with 

 brown. Operculum two-thirds the length of the vasiform orifice. An- 

 terior margin flat, posterior margin slightly concave, sides convex, the 

 curve being somewhat angular. Colour light brown. Lingula spatu- 

 late at tip. Only the tip projects beyond the operculum, it is the only 

 part which can be distinguished. Colour brown. Legs of adult can be 

 distinguished through ventral surface. Appearance much the same as 

 that shown in the description of A. citri. When the adult is emerging 

 from the pupal case its thorax is of a bright deep orange colour. 



Adult female. Length 1 mm. Wing 1*15 mm. X '42 mm. 



Colour light orange ; surface of the body dusted with a large quan- 

 tity of white meal. Eyes maroon, almost divided. Wings immaculate 

 covered with white meal. Legs and antennae white, tinged with yel- 

 low, dusted with white meal. Antennae *3 mm. in length. Formula 4 

 (2, 3,) 5, 7 (1, 6). Joint 1 short, flat : joint 2 stout, subpyriform : joint 3 

 thin, cylindrical, equal in length to joint 2 : joint 4 slightly longer than 



