Maskell. — Oil Aleurodidae. 431 



nearly covering the oritice, and of similar form ; lingula short, 

 almost regularly cylindrical, scarcely extending beyond the 

 operculum. There is no marginal fringe, nor are there any 

 dorsal or marginal hairs. 



Adult form unknown. 



Hab. In India, on Eugenia jamholana. My specimens were 

 sent by Dr. Alcock, Superintendent of the Indian Museum, 

 Calcutta. From the great numbers on the leaves it would 

 seem that the insect is injurious. They came from Poona. 



A short description of this insect was sent by me to Dr. 

 Alcock for insertion in " Indian Museum Notes" ; but I have 

 included it again here in order to note the distinctions 

 W'hich separate it, firstly from A. eugenice, var. aurantii, next 

 described, and secondly from A. citri (Ashmead), Eiley and 

 Howard, Insect Life, 1893, p. 219. As to the first, my 

 descriptions and figures will suffice. From A. citri the species 

 differs in the entire absence of marginal and dorsal hairs in the 

 larva and in the three radiating lace-work patches, of which no 

 mention is made by Eiley and Howard, but which are con- 

 spicuous characters of A. eugenice. 



This insect and its variety, with A. citri, A. melicyti, and 

 others, may be placed in a series of which A. proletella, Linn., 

 may be taken as the type. 



'li. Aleurodes eugenige, Maskell, var. aurantii, var. nov 

 Plate XXIX.— 2. 



Larva very pale-yellow, sometimes almost white ; form 

 roundly elliptical, llattish ; length about ^^n. Dorsum stri- 

 ated, but the striations are very faint, except near the margin. 

 Margin not at all thickened, finely fluted and crenulated, 

 bearing no hairs or fringe. There are three small marginal 

 depressions and three dorsal patches, as in the pupa. 



Pupa-case very pale-yellow, roundly elliptical or sub- 

 circular, flatfish and thin ; length about -^-^in., reaching some- 

 times as much as ^Vn. The enclosed pupa is only faintly 

 discernible dorsally, rather darker than the case, the abdo- 

 minal segments moderately distinct; on turning over the case 

 the rudimentary organs are less confused than in A. eugenia. 

 Dorsum of the case very finely marked with radiating striae, 

 which are a little more conspicuous near the margin. Margin 

 not thickened, almost entire, divided by deep narrow channels 

 into segments narrower than those of A. eugenics. There are 

 three marginal depressions, two opposite the rostrum and one 

 at the abdominal extremity, and three radiating patches 

 terminating at these depressions ; the patches end (as in the 

 type) in crenulated circular orifices, but are composed of great 

 numbers of very minute circular pores or dots, which do not 

 form a lace- work pattern. Vasiform orifice subtrapezoidal or 



