. Bulletin of the Department of Agriculture. Agriculture; Agriculture. WALNUT APHIDES IN CALIFORNIA. 25 YOUNG MALE PUPA. Light red in general color; appressed closely to the leaf surface. Dorsum of head in front black, behind gray. Dorsum of thorax gray. Antennae six-jointed (i. e., with five joints and filament), one-third as long as the body, pale gray. Eyes bright red. Legs pale, femora dusky gray. Mesothorax, metathorax, and first five abdominal segments each with four black spots in a transverse row. Abdominal segments 6 to 8, inclusive, with two such spots. A single capitate spine a
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. WALNUT APHIDES IN CALIFORNIA. 25 YOUNG MALE PUPA. Light red in general color; appressed closely to the leaf surface. Dorsum of head in front black, behind gray. Dorsum of thorax gray. Antennae six-jointed (i. e., with five joints and filament), one-third as long as the body, pale gray. Eyes bright red. Legs pale, femora dusky gray. Mesothorax, metathorax, and first five abdominal segments each with four black spots in a transverse row. Abdominal segments 6 to 8, inclusive, with two such spots. A single capitate spine arises from each of these spots. Cornicles imperceptible. Cauda pale, short, conical. Beak pale, tip dusky gray, reaching first coxae. FULL-GROWN MALE PUPA (FIG. 12). General color pale brick red; head pale orange. Antennae half as long as the body, seven-jointed, pale yellow, with dusky articulations. Eyes bright red. Legs very pale, femora usually slightly dusky. Wing pads white. Whole body with four longitudinal rows of dark capitate spines distributed as in the oviparous female. Cornicles on segment 6, appearing as little rims on the body surface, broader than long, concolorous with the body. Cauda bluntly conical, very short, pale yellow. Beak pale yellow, extreme tip brown, reaching to the first pair of coxae. Measurements: Length of body, mm.; width of body, mm.; cauda, mm. Antenna, joint I, mm.; joint II, mm.; joint III, mm.; joint IV, mm.; joint V, mm.; joint VI, mm.; filament, mm. Described from several specimens col- lected at San Jose, Cal., in 1912. WINGED MALE (FIGS. 13; 18, a). General color pale lemon-yellow or greenish yellow; head and a median quadrilateral area on thorax dark brown; scutellum dark brown; eyes dark red. An- tennae not mounted on frontal tubercles, about as long as the bodv; joints I and II with a dusky central part; . ,.,.,. ^ ' J,TT , . , „ . , , Fig. 12.—Monelha caryx: Male pupa. joi
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