. Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. 8 ECONOMIC ENTOMOLOGY the tip into a pair of soft cushion-like lobes, the oral lobes or labella (Fig. 12). The under sides of these lobes are traversed by a large number of open channels, the pseudo-trachecB, which open into the mouth situated near the middle; the greater portion of this proboscis is the modified labium. Lying above the grooved labium is the small spade- like labrum which may be raised by a pin. Near the base of the probos- cis and above the labrum are two small lobes,
. Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. 8 ECONOMIC ENTOMOLOGY the tip into a pair of soft cushion-like lobes, the oral lobes or labella (Fig. 12). The under sides of these lobes are traversed by a large number of open channels, the pseudo-trachecB, which open into the mouth situated near the middle; the greater portion of this proboscis is the modified labium. Lying above the grooved labium is the small spade- like labrum which may be raised by a pin. Near the base of the probos- cis and above the labrum are two small lobes, the maxillary palpi, the maxillae being fused with the fleshy base of the 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 Lochhead, William, 1864- [from old catalog]. Philadelphia, P. Blakiston's son & co
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
