A Classification of the Larvae of the Tenthredinoidea volume Illinois Biologic
A Classification of the Larvae of the Tenthredinoidea volume Illinois Biologic
Hachiro Yuasa
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Forty-three larvae of M. Bethunei were examined thru the courtesy of Mr. H. G. Crawford of Guelph, Ontario, Canada. Subfamily Hylotominae Larvae (Fig. 23) moderately large; body semicylindrical, venter flattened, distinctly wider than high, widest on abdominal segments 1-3, tapering caudad, caudal segments only one half the width of widest seg- ments; yellowish green, spotted or not; segmentation distinct; third abdominal segment with three annulets, all setiferous, often tuberculate; thoracic ...legs large, spreading laterad, apparently six-segmented inclusive of claws; claws sharply curved, large, distinctly separated from fifth segment by suture and with a large pulvillus-like swelling; larvapods setiferous, on abdominal segments 2-6 and with rudimentary 7th pair, or on 2-7 and 10 with rudimentary 8th pair; antennae one-segmented, either conical or button-like, if conical, larvapods on abdominal segments 2-6 and 10; spiracles distinctly winged; glandubae obsolete; tenth abdominal tergum without suranal processes.
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