470 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 11 
bearing sucker disc and comparatively long spine-like hair. Basal sheath of rostrums, 
extending to between bases of first and second pair of legs. 
Second Stage Nymph: Length 0.35 mm. Width 0.35 mm. Shape suboval, widest, 
across mesothorax, narrowest across abdomen, rounded anteriorly and posteriorly,, 
sides of meso- and metathorax arcuate and extended laterally. Color, antennae anct 
eyes somewhat similar to those of preceding stage. A fringe of minute spines on an¬ 
terior margin of head, on lateral margins of meso- and metathorax and a pair of ' 
spines on the lateral margin of each abdominal segment. Legs somewhat similar 
to those of preceding stage. 
Third Stage Nymph: Length 0.5 mm. Width 0.49 mm. Shape subcircular, anterior- 
end truncate, posterior end rounded; dorsal surface convex; body broadest across', 
thorax and narrowest across abdomen. Color light yellowish to dirty brown, some; 
individuals being additionally marked with black spots. Body segmentation dis¬ 
tinct. Antennae cylindrical, tapering to truncate distal end which is dark and bears*, 
two spine-like hairs. Eyes distinct, red. Wing pads more pronounced and ex¬ 
tended laterally. Lateral and frontal spines similar to those of preceding stage but. 
more pronounced. An irregular, transverse dorsal row of yellowish or white tuber¬ 
cles on anterior portion of triangular head, a median, dorsal, double row extending.: 
from the transverse row to the end of the abdomen. On either side of the median,, 
double row is a somewhat arcuate row starting at the end of the transverse row om 
the head and extending into the abdomen but not as far as the median, double row. 
Between these rows are smaller scattered tubercles. Largest tubercles are found' 
on head and thorax. Ventral surface and most of legs light. Distal ends of legs; 
dark, bearing pulvilli, a pair of claws and a spine-like hair. Basal sheath of rostrum, 
extending to between the bases of the second pair of legs. 
Fourth Stage Nymph: Length 0.7 mm. Width 0.78 mm. Shape, subcircular,, 
anterior end truncate, rounded posteriorly. Dorsal surface convex; body broadest 
across thorax, narrowest across abdomen. Color varies from light brown to black,, 
some individuals being spotted with black. The color of the tubercles varies from 
yellowish to white. Body segmentation distinct. Antennae similar to those of pre¬ 
ceding stage. Eyes distinct, red. Sides of mesothorax extended laterally and. 
anteriorly to anterior margin of head; sides of metathorax extended laterally and 
posteriorly to almost the middle of the abdomen. Entire periphery of body fringed 
with waxy threads which break off leaving spine like processes. Entire dorsal sur¬ 
face covered with various sized tubercles, with the following most prominent: trans¬ 
verse irregular row on head just behind the eyes, a median, dorsal, double row ex¬ 
tending from transverse row through abdomen, a curved row on either side of median, 
double row and extending from the end of the transverse row on the head to the' 
anterior part of the abdomen. In some specimens there were two curved rows on 
either side of the median double row. These curved lateral rows are not as promi¬ 
nent in this stage as in the third stage, due to the numerous other tubercles which 
are present. The entire dorsal surface has a pebbled appearance. Ventral surface 
and legs similar to those of preceding stage but darker. Legs bearing a few scattered 
spines. Basal sheath of rostrum similar to that of preceding stage. 
Adult: Calophya nigripennis Riley, 1884 rhois (Glover), 1877. Crawford in his^ 
monograph (U. S. N. M. Bull 85) gives the following redescription. “Length of 
body 1.7 mm; length of forewing 2.1; width of head 0.72. Color of vertex, wings, and 
anterior and middle femora black to brown, wings sometimes light brown; abdomen 
light brown to almost black; genal cones and thorax bright orange or sulfur-yellow;: 
antennae, except at tip, posterior femora and all tibiae pale yellow. Vertex smooth,, 
seldom alutaceous, shining, very convexfy rounded downward in front, more so than 
