. Bulletin of the Department of Agriculture. Agriculture. THE LESSEE CORN STALK-BORER. 11 the second and beginning of the last segment. Maxillary palpi pencil-tufted. Proboscis long, strong, scaled. Ocelli present. Antennae brownish, simple, bent and expanded above the base, with a heavy tuft of scales in the bend in the male; in the female more slender and without the tuft. (Fig. 6.) Thorax ochre-brown to blackish. Legs brownish gray, darker on the outside; tarsal segments bright yellow. Forewings very narrow, much elongated, 8-9 mm. long; distal margin oblique, posterior margin waved; i
. Bulletin of the Department of Agriculture. Agriculture. THE LESSEE CORN STALK-BORER. 11 the second and beginning of the last segment. Maxillary palpi pencil-tufted. Proboscis long, strong, scaled. Ocelli present. Antennae brownish, simple, bent and expanded above the base, with a heavy tuft of scales in the bend in the male; in the female more slender and without the tuft. (Fig. 6.) Thorax ochre-brown to blackish. Legs brownish gray, darker on the outside; tarsal segments bright yellow. Forewings very narrow, much elongated, 8-9 mm. long; distal margin oblique, posterior margin waved; in male (fig. 6, a) ochre-brownish on posterior margin from base out, with a poorly defined median stripe of ochre-brownish reaching almost to distal margin; remainder of margin varying from a narrow edging of brown to a complete covering of wing with blackish to plumbago; disk yellow- ochreous to reddish; on subdorsal vein slightly before middle where posterior margin begins to darken lies a dense brown dot marking position of first transverse line; diagonally outwards above it upon median vein is a smaller dot and beyond a more prominent one on cross vein; both lie in the bright median space but close to yellowish- brown shading of anterior margin; distal margin marked by row of black confluent dots within which is indistinct grayish stripe dusted with whitish atoms; within this in the dark color of surface appears beginning of second cross line very close to distal. Fig. 6.—The lesser corn stalk-borer: a, Male moth; 6, forewing of female moth. Greatly enlarged. (Original.) margin and most apparent on anterior margin; fringes brownish gray, beneath shining brownish gray; in the female (fig. 6, b) markings are the same but generally darker than in male; dot on the subdorsal vein enlarged but not prominent, dot on cross vein somewhat more distinct. Hind wings white, pellucid, somewhat grayish or brownish along anterior and distal margins and at apex shading back into the wing
Size: 2101px × 1190px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
