22 
BULLETIN 100, U. S. DEPARTMENT OF AGRICULTURE. 
THE WINGED VIVIPAROUS FEMALE (FIG. 10). 
General color pale lemon-yellow ; many examples are greenish yellow and others 
decidedly pinkish. Head, thoracic lobes, and scntellum pale brown or yellowish 
brown. Eyes pink. Antenna? on small frontal tubercles, about half as long as the 
body, pale yellow, with articulations of joints III to VI black; joint III the longest, 
not noticeably thickened basally; joint IV slightly longer than V and barely as long 
as joint VI, together with its spur or filament. Bases of antennae encircled, in the 
majority of individuals, with a narrow dusky ring. Close to the lateral margins of 
the prothorax and roughly parallel to them occur two narrow black lines. (These are 
sometimes absent.) Wings of moderate size; costa, subcosta, and stigma pale yellow- 
ish green, other veins light brown, of medium thickness. Stigmatic vein entirely 
subobsolete, its course not easily made out. Legs very pale, whitish, tarsi and apex 
Fig. 10. — Monellia caryse: "Winged viviparous female, a, Antenna. (Original.) 
of tibiae dusky grey; anterior and posterior femora in about half of the individuals 
bear a grey knee spot quite like that of Chromaphis juglandicola Kalt. but smaller. 
This spot never occurs on the middle femora. Abdomen pale yellow, sometimes 
greenish and at other times reddish, with four rows of small black spots, which are 
very variable and often wholly absent. The two lateral rows have larger spots and 
these are found on segments 2-6; the two median rows are smaller and their spots 
exist on segments 2-8. Cornicles on segment 6, hardly perceptible, more than twice 
as broad as long, about 0.008 mm. long. Cauda globular, shorter than the hind tarsus. 
Cornicles and cauda concolorous with the abdomen. Anal plate bifid, armed with 
spines. Beak pale, extreme tip brown and not quite extending to the second pair of 
coxae. Sensoria occur on the antennae as follows: Joint III, 6-9 transversely oval on 
basal half or two-thirds of joint; in an equally spaced row; joint V, 1 terminal; joint VI, 
4 terminal (1 large, 3 small). Measurements: Length of body, 2.16 mm.; width of 
