. Fig. 10. Wing of N. riliginosus. black, with the tips broadly white, tibiæ and tarsi white. hind tibiæ brownish black in the middle, anterior tibiæ slightly darkened. Wings hyaline with white veins, stigma light yellowish. Balteres white, the peduncle sliglitly darkened. Female. Front broad, snout moderately long, shorter than in pantherinus, antennæ inserted nearly in the middle; above the an- tennæ two oblique white stripes, going from the eye-margin to the base of the antennæ, and nearly meeting in front. Eyes nearly round, not longer than high. Thorax with shorter, somewhat depressed pub
. Fig. 10. Wing of N. riliginosus. black, with the tips broadly white, tibiæ and tarsi white. hind tibiæ brownish black in the middle, anterior tibiæ slightly darkened. Wings hyaline with white veins, stigma light yellowish. Balteres white, the peduncle sliglitly darkened. Female. Front broad, snout moderately long, shorter than in pantherinus, antennæ inserted nearly in the middle; above the an- tennæ two oblique white stripes, going from the eye-margin to the base of the antennæ, and nearly meeting in front. Eyes nearly round, not longer than high. Thorax with shorter, somewhat depressed pubescence. Abdomen black, with a white triangle in the middle of the second, third and fourth segments, and the hind margins of the fifth and sixth segments white; the triangles may vary in size and especially in breadth. All the side margin is narrowly white, but widened to a triangular spot at the hind corners of the second, third and fourth segments. Venter black with very narrow^ pale hind mar- gins of the segments; sometimes it is entirely black. Length 5—6,-5 mm.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
