68 CLASSIFICATION OF THE ALEYRODIDiE. 



A. ornaUis is " grey." No author mentions dark longitudinal brown bands, such 

 as those which are so conspicuous in A. pulvinata. What is much more impor- 

 taflt, in A. anonce Mr. Morgan gives fourteen " lateral infundibuliform compound 

 spinnerets" and "secreting glands." A. cocois (ap. Riley and Howard) has 

 also fourteen; .4.. ornatus has glands "practically as in A. anona;" but in 

 A. pulvinata there are twenty-two of these organs. No author mentions minute 

 dorsal spinnerets within the margin, such as those which are so extremely 

 numerous in A. pulvinata; yet, as these ai)pear to be certainly the producers of 

 the ring of waxy threads, they are of imiwrtance. As regards the vasiform 

 orifice and lingula, I find those of A. anonw (which Mr. Morgan curiously terms 

 the anus, colon, and ilium") and tho.se of A. cocois not greatly dissimilar; in 

 fact, they may be said to be practically identical. These organs are not men- 

 tioned for A. ornatus. In the figure 41B of A. cocoIh (Ins. Life, 1S93, p. 314) 

 the lingula of the adult female is shown as protruding considerably from the 

 abdomen; probably this will also be the ease in A. pulvinata. 



I believe that the wings of A. pulvinata will be not far removed from the 

 darkly banded ones of A. ornatus, but in the face of the statement that the 

 " larva " of that species is " grey," and in the absence of any further informa- 

 tion, I shall not at present so identify the insect, nor shall I yet relegate it to 

 the genus Aleurodicus. 



DESCRIPTIVE REMARKS. 



Pupa case. — Size 1.33 mm. long by 1.15 mm. wide; very roundly 

 elliptical, but little convex (PL XXII, fig. 6). As described above, 

 there are along each side two broad and irregular longitudinal bands 

 of dark-brown color in the derm, and there is a light yellow or semi- 

 transparent longitudinal band along the central dorsal area. We are 

 unable to verify Maskell's description in reference to the " twenty- 

 two tubercular pores, glands, or spinneret orifices." It seems clear 

 that the tubercles of certain spines were mistaken for wax pores. On 

 the type specimens the tubercular spines are to be made out with 

 considerable certainty, a series all around case, well within the mar- 

 gin, 10 or 11 on each side, as shown in the figure. There is also a pair 

 of spines on caudal end of case. There are seven pairs of compound 

 wax pores (PI. XXII, fig. 8), one on cephalic end, and on the abdo- 

 men are four pairs of large and two pairs of small pores. There is a 

 pair of spines just cephalad of the vasiform orifice, and three pairs 

 on the thoracic region toward the median line. Also on the thorax 

 are two pairs of stellate, transparent spots. The margin of case is 

 entire. Just within margin all around is a closely set row of minute 

 tubular wax pores resembling those in cocois. Also as in cocois, there 

 is on the submarginal area all around a broad band of minute simple 

 wax pores. 



Vasiform orifice (PI. XXII, fig. 7) broadly cordate, broader 

 than long, cephalic margin straight. Operculum considerably broader 

 than long, anterior margin straight, sides rounded, caudal margin 

 concave and minutely setose, bearing distally two pairs of spines. 



