. Cooperative economic insect report; survey methods. Entomological surveys; Insect pests United States. 80 Structural Characters for Recognition of Cotton Stem Moth (Platyedra vilella (Zell. )) The following combination of characters will separate the larvae and pupae of Platyedra vilella (Zell. ) from those of other species associated with hollyhock and other malvaceous plants. Treatment of the adult has been omitted because characters for ready recognition in the field are not known. LARVA: Head - with anterior puncture Aa between anterior setae A^ and A2, near A£. Prothorax (TI) - with 3 s
. Cooperative economic insect report; survey methods. Entomological surveys; Insect pests United States. 80 Structural Characters for Recognition of Cotton Stem Moth (Platyedra vilella (Zell. )) The following combination of characters will separate the larvae and pupae of Platyedra vilella (Zell. ) from those of other species associated with hollyhock and other malvaceous plants. Treatment of the adult has been omitted because characters for ready recognition in the field are not known. LARVA: Head - with anterior puncture Aa between anterior setae A^ and A2, near A£. Prothorax (TI) - with 3 setae on the prespiracular shield. Abdominal proleg-bearing segments (A3_g) - with seta iv approximate to seta v, both on same pinaculum. Eighth abdominal segment (Ag) - with group vii composed of 2 setae. Ninth abdominal segment (Ag) - with seta iii more slender than setae i or ii; seta vi absent. Crochets (C) - on abdominal prolegs (A3-6) uniordinal in length, arranged in a penellipse. PUPA: clothed with short, fine, pubescent-like hairs; anterior margins of fore wings (M) contiguous at a point near end of labial palpi, from which they are divergent (never parallel) to apices of wings. Length 8 to 10 mm. H. W. Capps. T- (thorax) A-(abdomen). 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 United States. Plant Pest Control Division. [Washington]
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Keywords: ., bookcentury1900, bookpublish, booksubjectinsectpestsunitedstates
