ALEURODICUS ORNATUS. 65 



the dorsum and from them is produced the waxy secretion before 

 mentioned. On the dorsum of case are the usual compound wax 

 pores (PL XX, figs. 4, 5) from which arise the long curling wax rods. 

 In the present species the pores are unusually large, measuring 0.064 

 mm. in diameter. These pores occur as follows: Four pairs on the 

 abdominal region, two pairs of smaller pores on the caudal end of 

 case, and two on each side of the vasiform orifice. On the cephalic 

 end of the case is also a pair, though they are somewhat smaller than 

 the pores on the abdomen. 



Within the margin of the case all around is a row of spines, 11 or 

 12 to each side. There is also a pair of spines just cephalad of the 

 vasiform orifice. 



Vasiform orifice (PI. XX, fig. 3) subcordate; operculum rectan- 

 gular, about half filling the orifice, the qaudal margin notched on 

 each side, and bearing a pair of spines. Lingula exserted, elongate, 

 and narrowed distally more than usual and with two indentures on 

 each side near end, from each of which arises a strong, often curved 

 .spine. On the ventral surface the legs and antennae are distinct. 



Adult female. — Length of body about 1.7 mm. Length of fore- 

 wing 2.27 mm.; width 1.15 mm. Antennae (PI. XX, fig. 10) seven- 

 jointed, usual; third segment 0.26 mm. in length; hind tibia 0.81 mm. 

 in length; first tarsal segment 0.2 mm. in length and distal segment 

 about half as long. 



Color rather uniformly yellow to darker, legs and antennae paler, 

 eyes greenish. Forewings (PI. XX, fig. 7) of both sexes with dusky 

 markings. Hind wings unspotted. Wing surface somewhat irides- 

 cent. Adults seem to occur promiscuously among the pupae, more 

 or less covered by the waxy secretion of the immature stages. 



Type. — No. 14774, U. S. National Museum. Described from abun- 

 dant material of infested foliage and eg^s, pupae, and adults in bal- 

 sam mounts. 



Aleurodicus ornatus Cockerell. 



(PI. XXII, figs. 1^.) 

 Aleurodicus ornatus Cockerell, Ent. Mo. Mag., vol. 29. p. 105 (1893). 



We know this species only from the type material in the U. S. 

 National Museum (type No. 14773). 



ORIGINAL DESCRIPTION. 



The imago, from head to the tip of the wings, measures somewhat over 2 mm., 

 and structurally agrees so well with the two known species of the genus, that 

 I should not have ventured to bring it forward as new, were it not for the beau- 

 tiful grey markings of the narrower upper wings. These markings, which dis- 

 tinguish the insect at a glance, consist of four broad, transver.se gray bands, 

 and u lougitudiuul baud ruuuiug from the outermost to the murgiu u little 



