84 H. W. Peal — Monograph of the Oriental Aleurodiclse. [No. 3, 



grey. Lingula cylindrical ; ifc projects to the posterior edge of the vasi- 

 form orifice. End almost flat. Only the part which projects beyond the 

 operculum can be made out. Colour grey. Antenna? length -5 mm. 

 Formula (3, 6,) (2, 4, 5,) 7, 1. Joint one short, flat ; joint two subpyriform, 

 about twice length of joint one ; joints three and six equal in length, each 

 about twice the length of joint two ; joints four and five each equal in 

 length to joint two ; joint seven short, thin, and tapering to apoint, about 

 one-third length of joint six. 



Adult male. Length 1*7 mm. Wing. 1*5 mm. x *77 mm. 



Colour, etc., much as in the female. The antenna? however are 

 enormously developed, being proportionately about twice as long as those 

 in the female. Length '9 mm. Formula 5, 3, (6, 7,) 2, 4, 1. Joint five is 

 very long, being nearly equal to all the others together. Joint one short 

 flat ; joint two subpyriform, twice length of joint one ; joint three fairly 

 long, one-and-a-half times length of joint two ; joint four short, less than 

 half the length of joint three ; joint five long almost equal to all the other 

 joints together; joints six and seven equal, together about equal to 

 joints three and four. The antenna? are heavily ringed and it is extreme- 

 ly difficult to make out the joints. The under surface of the abdomen 

 covered with a large quantity of white fluff. 



This species occurs in great abundance on the Simul tree (Bombyx 

 malabaricum) in Calcutta. The leaves are thickly covered with the 

 insect ; they become yellow and spotted wherever an insect is attached 

 and are ultimately killed. Superficially the insect somewhat resembles 

 A. eugenise, Mask. There are the same radiating dorsal patches and the 

 dorsum is similarly striated. They differ however in the shape of the 

 pupa-case, and the shape of the vasiform orifice. A. Simula has a slight 

 marginal fringe and there are four seta? on the margin. The radiating 

 dorsal patches are quite different in the two insects. In A. Simula 

 these patches are not formed by closely apposed pores but are yellow 

 bands striated with grey. The thoracic radial patches are also true 

 ridges, being elevated above the surface of the dorsum. All three pat- 

 ches in this species end not in a single aperture or pore opening dorsally, 

 but in five stout brown horizontal pores which secrete a small quantity of 

 fluffy brown wax. The dorsum in this species is covered with a large 

 number of extremely minute circular pores ; the margin is also broad 

 and clearly defined. 



Mr. Maskell was mistaken in assuming that the three radial patches 

 were sufficient evidence to prove the close relationship of A. eugenise and 

 A. eugenise var. aurantii. As a matter of fact many of the Indian Aleu- 

 rodida? possess this characteristic, however widely different they may 

 otherwise be, 



