Sept., 1915-] Leonard: Plagiognathus politus Uhler. 195 



of the segments about as in the preceding stage ; antennae and legs 

 more slender. Legs as in stage IV but markings, as a rule, darker. 

 Adult (PL XIV, fig. 14). — Length, about 4 mm. Color dark brown 

 to black, somewhat shining. Eyes dark reddish. Antennae blackish. 

 CoxjE, trochanters and femora black, except tip of latter which is 

 yellow; remainder of legs as in fifth stage nymph. The two cells at 

 the base of the membrane are outlined with whitish. Whole body, 

 legs and antennae covered with fine golden hairs. 



Campylomma verbasci Herrick-Schaeffer. 



This species is found throughout the summer at Rochester Junc- 

 tion, N. Y., breeding abundantly on the common mullein, Verhascum 

 thapsus L., and on apple nursery stock. The following technical 

 descriptions of the immature stages are based on rearings made by 

 the writer during the summer of 1914. 



The Egg (PI. XIV, fig. i). — Length .75 mm., width .15 mm.; cylin- 

 drical, rather strongly curved ; posterior end bluntly rounded ; con- 

 stricted just before anterior end which is obliquely truncate; cap very 

 narrowly elliptical in outline ; color whitish or pale yellowish, semi- 

 shining. 



Stage I (PI. XIV, fig. 2). — Length .6 mm., greatest width of ab- 

 domen .12 mm. Color, very pale translucent yellowish. Eyes reddish. 

 Body sparsely covered with rather long hairs which are dark in 

 some lights, golden in others. Legs and antennae translucent whitish. 

 Beneath as above ; tip of beak dusky. 



Stage II (PI. XIV, fig. 3). — Length, .85 mm., greatest width across 

 abdomen, .36 mm. General color pale yellowish, legs and antennae 

 usually pale translucent. Otherwise as in preceding stage except 

 that body is proportionately a little stouter and relative size of 

 thoracic segments is different as can be seen by comparing the 

 figures. 



Stage III (PI. XIV, fig. 4). — Length, 1.24 mm., greatest width 

 (across thorax) .5 mm. General color pale yellowish, thorax often 

 tinged in irregular spots with pale greenish ; abdomen pale greenish. 

 Wing-pads just beginning to show on mesothorax. Antennse and legs 

 pale yellowish, extreme tip of tarsi slightly dusky. A round, blackish, 

 setigerous spot above, and a fainter one below, near tip of hind 

 femora. A faint setigerous spot on fore and middle tibiae near tip, 

 above. Middle and hind tibise each with two blackish setigerous 



