10 BULLETIN 689, U. S. DEPARTMENT OF AGRICULTURE. 



Ventral surface. 



Head: Pale green with yellowish tinge anteriorly. Sides and front bordered with 

 black. First joint of antenna for most part light green, others fuscous. Labrum 

 fuscous, the rest of base of beak light green. Last two segments of beak fuscous. 



Thorax: Pale green with few scattered black dots and lines. Sides bordered with 

 black and with orange-colored area just inside border. Femora light green. Tibia; 

 and tarsi dusky to fuscous. 



Abdomen: Pale yellowish green. Sides and posterior end bordered with black, 

 with salmon- tinged band just inside border. Spiracles black. 



Dark form, dorsal surface. 



Head: Dark brown, nearly black, sometimes with jugum yellow. . 



Thorax: Dark brown, nearly black, except for yeliow area near edge of prothorax 

 and one near edge of mesothoiax. 



Abdomen: Dark brown, nearly black. Last two segments lighter than others 

 White markings as in light form . Color of glands same as rest of ground color. Salmon- 

 colored areas along connexivum absent. 



Ventral surface. 



Head: Greenish black. Beak and antennae of same color. 



Thorax: Greenish black except for yellowish areas near edge of prothorax and 

 mesothorax and light, whitish band down median line under beak. Legs greenish 

 black. 



Abdomen: Light yellow tinged with red and with greenish-black border at sides 

 and posterior end. Row of five greenish black spots along median line. Spiracles 

 black. 



FIFTH-STAGE NYMPH. 



Shape much as in preceding stages, but development of wing pads now quite pro- 

 nounced and basal portion of abdomen in part covered by them. Length, when 

 mature, about 10 mm., width about 7 mm. 



Light form, dorsal surface. 



Head: Pale green with black border and a black area at base on either side of median 

 line. Eyes for most part black. 



Thorax and wing-pads: Pale green with black border on sides and with few scattered 

 black dots and other black markings. A narrow orange-colored band just inside black 

 border, more pronounced on prothorax. 



Abdomen: Pale yellowish green with black area about rose-colored glands. Yellow- 

 ish-white, rounded spots located as follows: Two small, ones on median line, one 

 between first and second and one between second and third glands; row of five on 

 either side, just outside median line, the third and fourth largest; row of five on either 

 side near connexivum, the first sometimes covered by wing-pads. On connexivuni 

 at either side of each segment, a rose-colored, black-bordered, somewhat semicircular 

 area, its less curved border outward. Near posterior end of abdomen these areas not 

 well defined. 



Ventral surface. 



Much as in light form of fourth-stage nymph except that band just inside black 

 border of abdomen is rose colored. 



Dark form, dorsal surface. 



Head: Juga chrome orange with black border on outside edge. Rest of head and 

 eyes dark brown, nearly black. 



