. Annals of applied biology. Biology, Economic; Biochemistry. 314 The Large Poplar Longhorn In the ventral view of the pupa (Fig. 13) the various parts of the head and mouth are clearly discernible. Anteriorly lies the vertex (v) and in the centre the frons (fr); on each side is the gena (g) or cheek region. The mandibles (m) are attached to the frons; between them lies the triangular labium (pi). Below the mandibles are the labial palps (Ip) in the centre, and on each side, a maxillary palp (p). The ventral surface of all the abdominal segments with the exception of the last two is smooth. Th
. Annals of applied biology. Biology, Economic; Biochemistry. 314 The Large Poplar Longhorn In the ventral view of the pupa (Fig. 13) the various parts of the head and mouth are clearly discernible. Anteriorly lies the vertex (v) and in the centre the frons (fr); on each side is the gena (g) or cheek region. The mandibles (m) are attached to the frons; between them lies the triangular labium (pi). Below the mandibles are the labial palps (Ip) in the centre, and on each side, a maxillary palp (p). The ventral surface of all the abdominal segments with the exception of the last two is smooth. The penultimate or ninth abdominal segment. Fig. 13. Pupa of S. carcharias, ventral view (greatly magnified), as = anal or tenth seg- ment; fr= frons; ms$ = mesosternum; mts = metasternum; tt = third sternite; x = first leg; y=second leg; other letters as in Fig. 11. (nt) bears on its lateral margins a patch of stiff bristles. The last or anal segment is somewhat triangular in shape; it is enclosed by the eighth (et) and the ninth (nt). There is a strongly marked sexual difference between the anal segment of the male pupa and that of the female (see Fig. 14). In the male (Fig. 14 b) this segment shows the anal opening (an) with a small membranous plate (c) trapezoidal in shape on its anterior margin;. 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 Association of Applied Biologists; Association of Economic Biologists. [Wellesbourne, Warwick, etc. ] Association of Applied Biologists [etc. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbiochem, bookyear1921
