. Annals of applied biology. Biology, Economic; Biochemistry. Walter Ritchie 309 and the postscutellum (ps) dorsally (described more fully below); the pleural zone or lobe medially; the bypopleurum (hyp), eusternum (es), and sternellum (sll) ventrally. Dorsal to the pleural zone on each segment a spiracle (sp) is situated. On each of the pleural folds there is a swollen band (pb) bearing fine hairs. The eighth body segment, in side view, has a similar appearance to the first seven, only no parascutal, hypopleural, eusternal, or sternellar lobes are present. The ninth segment is similar to the
. Annals of applied biology. Biology, Economic; Biochemistry. Walter Ritchie 309 and the postscutellum (ps) dorsally (described more fully below); the pleural zone or lobe medially; the bypopleurum (hyp), eusternum (es), and sternellum (sll) ventrally. Dorsal to the pleural zone on each segment a spiracle (sp) is situated. On each of the pleural folds there is a swollen band (pb) bearing fine hairs. The eighth body segment, in side view, has a similar appearance to the first seven, only no parascutal, hypopleural, eusternal, or sternellar lobes are present. The ninth segment is similar to the eighth, only it lacks spiracles and shows no postscutal area. The tenth abdominal segment is divided by three deep sutures into three lobes—one dorsal and two latero-ventral—which surround the Fig, 9. Dorsal surface of first thoracic segment of larva, S. carcharias. Head also shown here in natural position (both parts greatly magnified), a = antenna; c = clypeus; e^ji = epicranium; /=frons; fs = frontal suture; Z = labrum; m = mandible; o = ocellus; pg = pronotal groove; ^/»=pronotum. Between the segments are bands of intersegmental skin (is). This allows free longitudinal expansion and contraction of the segments. This skin is more marked between some of the segments of the body than between others. Looking now at the larva dorsally, one can see clearly the large pronotum (Fig. 10 a, p) lying immediately behind the head. In the enlarged view of this region (Fig. 9) the pronotum (pn) is seen to bear on each side a curved groove (pg), running anteriorly and then sharply bending backwards for a short distance. Between these two grooves there are numerous chitinous asperities, while running transversely along the anterior margin of the pronotum is a row of chitinous bristles. The dorsal area of the second thoracic segment—the mesonotum—shows a transverse row of very short stiff bristles along its anterior margin,. Please note that these images are extracted from sc
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbiochem, bookyear1921
