64 CLASSIFICATION OP THE ALEYRODIDJE. 



The senior author in studying the forms of Aleyrodidae in the 

 bureau collection -^ accepted these determinations without critical 

 examination of the material, and thus fell into the error of using the 

 pup.ne of neglectus and the adults of gigaiiteus in characterizing 

 anonce in the table of species (1. c, p. 43), and these two species were 

 confused in stating the geographical distribution and food plants of 

 anoncB (p. 44). A. neglectus differs from anonce in that the wings of 

 the adult are spotted with dusky. In anonce. the wings are stated to 

 be snowy white. A. anonce differs from giganteus in its smaller size 

 and in the shape and structure of the pupa case, notably the presence 

 on the caudal region of the two pairs of reduced compound pores, 

 quite absent in giganteus. 



Aleuroclicus neglectus was also received from H. Caracciola, Port 

 of Spain, Trinidad, September 28, 1896, on Anona reticulata; and 

 again, from Trinidad, June 7, 1907, on coconut, from Mr. O. W. Bar- 

 rett. March 11, 1911, a further lot of material of this species was 

 forwarded by Dr. F. W. Urich, Port of Spain, Trinidad, on Anona 

 squamosa. The species is therefore known from Para, Brazil, and 

 Trinidad, and from the following host plants: Anaiui reticulata, A. 

 squamosa, Anona sp. (Brazil), and the coconut, Cocos nucifera. 



This insect and A. destructor on coconut from the Philippines are 

 noteworthy on account of the large size of the compound wax pores 

 of the pupa case and the rather elongate and distally narrowed 

 lingula. 



DESCRIPTION. 



Egg. — Length 0.3 mm., light yellow, unmarked; stalk very short; 

 egg lying prostrate on leaf (PI. XX, fig. 1). 



Pupa case. — Size about 1.3 by 0.92 mm., broadly elliptical in out- 

 line. Dorsum little convex, the body segments distinct (PI. XX, 

 fig. 2). There is a copious secretion in the form of more or less 

 fluted bands or masses of white wax from the simple dorsal and sub- 

 marginal wax pores, extending out on leaf all around, several times 

 the width of the ci^se. From the compound wax pores are produced 

 the long glassy wax rods usual in the genus, but their length in this 

 species is remarkable and very similar to A. destructor. The pupte 

 on the leaf are quite hidden under the large mass of wax, which ren- 

 ders them quite conspicuous. In the copious wax. on the lower sur- 

 face of the case the adults occur in numbers. There is evidenced a 

 tendency to congregate along the midrib of the leaf, though individ- 

 uals are also scattered over the general leaf surface (PI. XXI, fig. 2). 



The color of the case, denuded of wax, is yellowish to darker, some 

 specimens varying to plumbeous. Margin of case apparentl}'^ entire; 

 just within margin all around is a closely set row of simple wax 

 pores (PI. XX, fig. 6) and similar pores are scattered generally over 



