. Bulletin of the Department of Agriculture. Agriculture; Agriculture. THE EUROPEAN ELM SCALE IN THE WEST. 7 Fikst Stage (Pl. I, B). Color bright yellow soon after hatching. Length millimeter; width millimeter. Of an elongate oval form, rounded anteriorly and tapering posteriorly to a pair of pointed processes, each bearing one long and several short setae. Anal ring, occurring between these processes or lobes, with six setae or hairs. Legs rather stout, with short tibiae. Usual two pairs of thoracic spiracles present. A single row of blunt spines on the lateral margin o
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. THE EUROPEAN ELM SCALE IN THE WEST. 7 Fikst Stage (Pl. I, B). Color bright yellow soon after hatching. Length millimeter; width millimeter. Of an elongate oval form, rounded anteriorly and tapering posteriorly to a pair of pointed processes, each bearing one long and several short setae. Anal ring, occurring between these processes or lobes, with six setae or hairs. Legs rather stout, with short tibiae. Usual two pairs of thoracic spiracles present. A single row of blunt spines on the lateral margin of larva and a double row extending down the back, some reduced to rudiments. Also. I,l 1 J â â â /? â â - J - - ' . # _ J K, I 1 y â 2 : Of â iwBI Fig. 3.âFemales of the European elm scale: 1, Dead females in winter on corky elm (natural size) ; 2, living females in summer (enlarged about 4 diameters). (Doten.) six extra spines on head and a number of very small spines on dorsum. An- tennae (PI. Ill, A) rather stout and 6-segmented, sixth segment longest, fourth and fifth subequal and shortest, each segment bearing several hairs. Second Stage (Pl. I, C). Full-grown second-stage larva reddish brown in color. (In life of a gray appearance, due to the protruding wax.) Body oval in outline, rounded ante- riorly and rather pointed posteriorly, about millimeters long and milli- meter wide. Eyes situated near margin of body behind antennae. Legs rather long and slender. Two pairs of thoracic spiracles present. Anal ring com- pound, bearing six setae and situated between two prominent pointed anal lobes, each bearing a long slender spine on its tip, also several shorter spines on lobes. Entire dorsum covered with stout blunt spines and arranged more or less in two rows on each abdominal segment. Few small spines on Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearan
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