364 



PROCEEDING'S OF THE NATIONAL MUSEUM. 



reous tint and the forewings have fulvous spots disposed in the 

 manner shown in figure 4, and in figure 6, No. 1. Length of body, 

 not including^he wings, from 1.60 to 1.70 mm.; with the wmgs from 

 2 to 2.10 mm. Width of the thorax 0.58 mm. Length of the abdo- 

 men 0.97 mm. and its width 0.74 mm. Length of the antennae 0.71 

 mm. Length of the forewmg 2 mm. and its width 0.93 mm. Length 

 of the liuid wmg 1.49 mm. and its width 0.71 mm. 

 Length of the legs of the tliu'd pair 1.35 mm. 



The head (fig. 5) is about as long (measured 

 along the posterior margin) as it is wide. The 

 compound eyes are well developed, and they are 

 divided as they are in other species into an upper 

 and a lower part. The ocelli are in contact with 

 the upper margin of the compound eyes. The 

 antennae (fig. 6, No. 14) consist of 7 joints, the 

 first of these bemg very short, the second subcy- 

 lindrical, twice as long as wide, the third much 

 thmner than the second and a little more than 

 three times as long as the second jomt. In its 

 distal part the third jomt is furnished with four sensory organs, one 

 represented by a somewhat thick and elongated bristle ; the three 

 others, on the other hand, by a groove with a short subconical process. 



Fig. 4.— ALEUROLoBua 

 oLiviNus. Adult. 

 (After Selvestri.) 



Fig. 5.— Aleurolobus ouvinus. 1, Head of adult, front view; 2, head of adult, lateral view; 



3, THORAX OF adult, DORSAL VIEW. (AFTER SiLVESTRI.) 



The fourth jomt is short, much shorter than all the others and even 

 than the second. The fifth jomt is longer than the second and is 

 provided with a sensory pit toward its distal part. The sixth is 

 longer than the fifth, and the seventh about twice as long as the 

 sixth. The seventh joint has a thickish and rather long bristle near 

 its central portion and a slender apical bristle. 



The ratio of length between one jomt and the other of the antennae 

 may vary somewhat in different specimens. 



