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MISCELLANEOUS PAPERS. 



however, just within margin on case, all around, a row of brownish- 

 colored, tubercled setse. Vasiform orifice subcordate (fig. 35, c), about 

 as long as wide. Cephalic margin straight, coinciding with cephalic 

 margin of operculum. Operculum subrectangular, the lateral mar- 

 gins somewhat rounded; considerable^ wider than long and with 

 caudal margin almost straight. Lingula relatively large, particularly 

 distally, where it becomes broadly spatulate; longer than orifice, and 

 bearing distally two pairs of seta?. Abdominal segments moderately 

 distinct. Kudimentary feet and antennae very evident. 



Fig. o6. — Paraleyrodes persew: a. Antenna of aduU ; b, right fore wing of adult ; c, male 

 genitalia ; (7, claw of third leg of adult. Highly magnified. (Original.) 



Adult. — Body of living specimens buff or pinkish in color, marked 

 with white. Wings whiti.sh, but clouded with dusky. These are held 

 almost flat along the dorsum, and do not meet along the middle line. 

 A copious amount of flocculent white wax is secreted, which becomes 

 scattered over the leaf surface, the sluggish adults resting in little 

 depressions here and there in the waxy covering. Antennse peculiar 

 and apparently of but four joints (fig. 36, a), due to the evident 



