. Bulletin of entomological research. Entomology. 31 ON A NEW AFRICAN SPECIES OF COCCIDAE. By J. W. Scott Macfie, , , West African Medical Staff, Ceronema africana, sp. n. Female (fig. 1).—Ovisac formed of thickly felted creamy-white to buff-white secretion ; dorsum highly convex longitudinally and slightly so transversely, with a series of 11 longitudinal and crenulated keels or ridges, of which the lateral ones are very broad and flange-like and arise from points on the body of the female considerably nearer the middle line than any of the others ; sides vertical, with two or three c
. Bulletin of entomological research. Entomology. 31 ON A NEW AFRICAN SPECIES OF COCCIDAE. By J. W. Scott Macfie, , , West African Medical Staff, Ceronema africana, sp. n. Female (fig. 1).—Ovisac formed of thickly felted creamy-white to buff-white secretion ; dorsum highly convex longitudinally and slightly so transversely, with a series of 11 longitudinal and crenulated keels or ridges, of which the lateral ones are very broad and flange-like and arise from points on the body of the female considerably nearer the middle line than any of the others ; sides vertical, with two or three curved or concentric keels similar to those on the dorsum, but. Fig. 1.—Ceronema africana, Macfie ; females with ovisacs in situ ; very slightly enlarged. there are also small transverse intervening lines which give the sides of the ovisac a distinctly conchoidal appearance ; interior of ovisac smooth. Length, 6*50 to 8*50 mm. ; height, 6 to 7*50 mm. ; width, 6 to 7*25 mm. Old adult female tilted as in Pulvinaria so that the front, which is distinctly produced, is the only portion attached to the food-plant. In some instances the position of the body is almost vertical, and in one example the anal portion projects actually slightly in front of the cephalic margin. Dorsum with a median elongated patch of opaque glassy secretion, the rest nude and dark brown in colour. Female after maceration in potash — broadly ovate, and usually distinctly produced anteriorly. Derm covered irregularly with more or less circular cells (fig. 2 A) with thick walls ; in the centre of each cell a circular aperture and a. 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 Great Britain. Colonial Office. Entomological Research Committee; Imperial Institute of Entomology; Commonwealth Institute of Entomology. Farnham Royal : Commo
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectentomology, bookyear1
