. The black scale. Scale insects. Bulletin 223] THE BLACK SCALE. 191 above; wings clear; veins yellowish; antennae 11 jointed; pedicel about twice as long as thick. The club is as long as the three preceding joints. OTHER PARASITES. Aside from those already mentioned, Coccophagus lecanii and C. lunulatus have been reared from the partly grown scales. But all of these internal parasites are very scarce as compared with the egg-feed- ing parasites. According to Mr. C. P. Lounsbury, the following parasites have been reared from the black scale by Mr. C. W. Mally in South Africa: Scutellista cyane


. The black scale. Scale insects. Bulletin 223] THE BLACK SCALE. 191 above; wings clear; veins yellowish; antennae 11 jointed; pedicel about twice as long as thick. The club is as long as the three preceding joints. OTHER PARASITES. Aside from those already mentioned, Coccophagus lecanii and C. lunulatus have been reared from the partly grown scales. But all of these internal parasites are very scarce as compared with the egg-feed- ing parasites. According to Mr. C. P. Lounsbury, the following parasites have been reared from the black scale by Mr. C. W. Mally in South Africa: Scutellista cyanea Motsch. Coccophagus orientalis How. Microterys sp. Microterys sp. Coccophagus, near ochraceus How. Aphycus lounsburyi How. Tetrastichus sp. Tetrastichus sp. 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 Quayle, H. J. (Henry Josef), 1876-; Rust, E. W. (Everett Winder), 1884-. Berkeley, Cal. : Agricultural Experiment Station


Size: 1524px × 1640px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjectscalein, bookyear1911