340 ENTOMOLOGICAL NEWS. [Oct., '07 



lobe spiny and projecting between two much longer spines about 10 /* 

 in length. Papillose for almost its entire length. 



Adult. — Eyes reddish, apparently, but not nearly divided. Wings 

 white, immaculate, semitransparent. Granular wax secretion very 

 scanty, almost wanting, and this insect does not have the meally or 

 floury appearance common to many species of Aleyrodes. Body 

 yellow, legs and antennae white. 



Female. — Length of body about .86 mm. ; length of forewing about 

 1 mm. ; breadth of forewing about .45 mm. ; hind tibia about .38 mm. 



Male. — Length of body about .73 mm. ; length of forewing about 

 .93 mm.; breadth of forewing about .40 mm. ; length of hind tibia about 

 .34 mm. ; length of antenna about .38 mm. 



Types. — U. S. National Museum. 



Cotypes. — Collection of Connecticut Agricultural Experi- 

 ment Station, New Haven, Conn. 



Described from 4 $ s, 17 $ s, and many pupa cases. 



Habitat. — This species occurs on Juglans, being found on the 

 under surface of the leaves. It was collected on black walnut, 

 /. nigra at the Station July 226., 1904, by B. H. Walden ; the 

 writer collected it at Mt. Carmel, Conn., September 24th, 

 1904, and at New Canaan, Conn., September 15th, 1905, on 

 butternut, /. cinerea, a few specimens only occurring on a leaf. 

 A similar species probably identical was. observed by the writer 

 at Surry, N. H., September 6th, 1902, on butternut leaves. 



Named after my assistant, Mr. B. H. Walden. 



Aleyrodes raorrilli sp. nov. 



Egg. — Unknown. 



Larva. — Yellowish or greenish white, vasiform orifice yellow and 

 darker. Oval, dorsum flat without spines, rods or other wax secretions. 



Pupa. — Length about .76 mm. ; breadth about .48 mm. ; color light 

 greenish yellow, empty pupa cases white, translucent, vasiform orifice 

 darker. Broadly oval in shape, with a slight constriction or narrow- 

 ing about one-third the body length from the cephalic extremity. 

 Dorsum flat or very slightly convex, with a coriaceous, granular, or 

 more or less wrinkled appearance, marked transversely correspond- 

 ing to adult segmentation, and without spines, rods, or accretions of 

 wax in any form. Raised from the leaf by a wall of wax about 115 /* 

 high. Margin very finely crenulate, almost entire, with no wax fringe. 

 At the anal extremity there is a pair of curved setae about 22 /* in 

 length and about 22 /* distant from each other. 



Vasiform orifice subtriangular with angles rounded, about four-fifths 



