. Bulletin of the Department of Agriculture. Agriculture; Agriculture. WALNUT APHIDES IN CALIFORNIA. 33 head and six on the prothorax. Tib he armed with a row of short bristles on their inner margins. Beak pale, the extreme tip dusky, extending a little beyond the anterior coxse. The young oviparous female is entirely pale yellow and can be dis- tinguished from the young viviparous female only by its more eliptical shape, that of the latter being more oval. Measurements: Length of body, mm.; width of body, mm.; antenna, joint I, mm.; joint II, mm.; joint III, m
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. WALNUT APHIDES IN CALIFORNIA. 33 head and six on the prothorax. Tib he armed with a row of short bristles on their inner margins. Beak pale, the extreme tip dusky, extending a little beyond the anterior coxse. The young oviparous female is entirely pale yellow and can be dis- tinguished from the young viviparous female only by its more eliptical shape, that of the latter being more oval. Measurements: Length of body, mm.; width of body, mm.; antenna, joint I, mm.; joint II, mm.; joint III, mm. joint IV, mm.; joint V, mm.; joint VI, mm.; filament, mm. cauda, mm.; cornicles, mm. Described from numerous specimens, Walnut Creek, Cal., October, 1912. WINGED MALE (FIGS. 17; 18, 6). General color pale green or greenish yellow. Head and prothorax olive-green. Frontal margin of head and frontal margin of prothorax, black. Prothorax with two. Fig. 17.— Monellia caryella: Winged male. (Original.) bluntly rounded dusky tubercles on the dorsum. Dorsum of head and thorax with indefinite dusky markings. Eyes red. Antennae dark olive-green, about three- fourths of the body in length; joint VI longer than its filament. Sensoria as follows: III,about21:IV,7to9;V,6tol0;VI,2to4(besidestheusualapical). Wings of mod- erate size; insertions and subcosta greenish-yellow; stigma light brown, with a paler central area; discoidals 1 and 2 thicker than the other veins and with a narrow smoky border; stigmatic vein obsolete except for its apical third; veins brown. Legs pale greenish-yellow; coxse, trochanters, apical five-sixths of femora, and basal four-fifths of tibiae black; tarsi gray. Thoracic lobes and scutellum black. Under the wings. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original wo
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Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
