NO. 2156. SUBFAMILY ALEYRODINAE-QUAINTANCE d BAKER. 379 



the margin. There is a pair of small setae on the cephalic margin 

 at about the same distance from the median line as the eyespots and 

 a similar pair of latero-caudal setae. We have been unable to find 

 any caudal setae similar to those present in the related species, 

 though these may normally be present and not observable in the speci- 

 mens we have been able to study. On the leaf we have only two 

 specimens. These do not show any secretion from marginal wax 

 tubes, as stated by Kuwana, and it has doubtless been broken off 

 in our material. 



Paratype material of eggs, larvae, and pupa cases studied in balsam 

 mounts. 



Type.— C&i. No. 19107, U.S.N.M. 



This species is closely allied to marlatti, but differs m markings of 

 wings of adult and in markings of pupa case. It occurs on grape 

 in Okoga and on grape and Taonaba japonica Szyszylowicz in Tokio. 



Genus ALEUROPARADOXUS Quaintance and Baker. 



AUuroparadoxus Quaintance and Baker, Tech. Ser. 27, pt. 2, Bur. Ent. U. S. 

 Dept. Agr., 1914, p. 104. 



Pupa case medium in size, elliptic in outline, margin toothed, 

 the wax tubes only moderately developed; submarginal area not sepa- 

 rated from dorsal disk; just within margin a series of papilla-like 

 pores and dorsum with numerous irregular shaped pores; tracheal 

 folds present, terminating on margin in a comb of teeth; wax secre- 

 tion brittle glass-like rods from the submarginal papillae and usually 

 a secretion from the dorsal pores. Vasiform orifice subcordate or tri- 

 angular, the operculum similar in outline, obscuring the lingula. 



Adult with a single flexure in radial sector of fore wing and no 

 spur of media. Antennae seven-segmented, IV the longest; distal 

 segments subequal. Sexes nearly equal in size. 



Type. — AUuroparadoxus iridescens (Bemis) . 



KEY TO SPECIES OF ALEUROPARADOXUS. 



1. Median dorsal ridge of abdomen with a double row of large pore-like structures, 



two on each abdominal segment iridescens. 



2. Median dorsal ridge with a row of small pore-Uke structures, 3 to 5 close together 



on each abdominal segment punctatus. 



ALEUROPARADOXUS IRIDESCENS (Bemis). 



Plate 48, fig. 1. 

 Aleyrodes iridescens Bemis, Proc. U. S. Nat. Mus., vol. 27, 1914, p. 487. 



This species has been rather fully described by Bemis. A few 

 details of structure may be added in order to separate iridescens 

 from closely related forms. The submarginal papiUae are about 

 0.03 mm. long and form a very even row. The pore-hke structures 



