. Fig. 20.—Phthiria gracilis, Walk., wing. wide as at level of antennas, where it forms nearly one-third the width of the head ; a broad black stripe from vertex to above antenna?, sometimes wholly interrupted in middle ; ocelli distinct; sides of face between antennas and eyes blackish ; occiput black, broadly orange behind eye-margins, the colour not extending behind the vertex. Thorax in $ dark blackish brown, with a little short dark brown pubescence, which is longer towards the sides of the dorsum; scutellum concolorous. In $ greenish grey, lower margin of dorsum rather broadly though som
. Fig. 20.—Phthiria gracilis, Walk., wing. wide as at level of antennas, where it forms nearly one-third the width of the head ; a broad black stripe from vertex to above antenna?, sometimes wholly interrupted in middle ; ocelli distinct; sides of face between antennas and eyes blackish ; occiput black, broadly orange behind eye-margins, the colour not extending behind the vertex. Thorax in $ dark blackish brown, with a little short dark brown pubescence, which is longer towards the sides of the dorsum; scutellum concolorous. In $ greenish grey, lower margin of dorsum rather broadly though somewhat irregu- larly pale yellowish ; scutellum yellow, with a small blackish spot at base. Abdomen in <S black, with long black hairs, hind margins of basal segments more or less narrowly yellow. In § yellowish, with short, brown, not very obvious pubescence ; base of segments
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1920, bookyear1920
