. The Canadian entomologist. Insects; Entomology. THE CANADIAN ENTOMOLOGIST 131 •concentrically Striate. Wings brown, basal fourth much paler, gray. Segment 8 of abdomen unarmed, without the usual comb-like fringe on posterior margin. Physothrips xanthocerus, sp. nov. (Fig. 3, a and b.) Female {macroplerous).—Length about Colour dark blackish brown, nearly black, with antennal segments 3-8, all tarsi, and distal half of all tibia?, light lemon yellow; fore wings brown, pale gray in basal fourth. Head about three-fourths as long as greatest width, sides arounded and converging to base; o
. The Canadian entomologist. Insects; Entomology. THE CANADIAN ENTOMOLOGIST 131 •concentrically Striate. Wings brown, basal fourth much paler, gray. Segment 8 of abdomen unarmed, without the usual comb-like fringe on posterior margin. Physothrips xanthocerus, sp. nov. (Fig. 3, a and b.) Female {macroplerous).—Length about Colour dark blackish brown, nearly black, with antennal segments 3-8, all tarsi, and distal half of all tibia?, light lemon yellow; fore wings brown, pale gray in basal fourth. Head about three-fourths as long as greatest width, sides arounded and converging to base; occiput with several anastomosing. Fij. 3.—Physolhrips xanihocrus. n. sp., female, holotype; b, antenna. lines; interocellar bristles less than one-fourth as long as head, situated well within the ocellar triangle; a pair of smaller bristles in front of, and a second pair behind posterior ocelli; postocular bristles small, three pairs in profile at posterior angles of eyes. Eyes about as long as head and slightly narrower than their inter\'al. Ocelli equidistant, subequal in size, posterior pair opposite middle of eyes. Antennae about three and one-fourth times as long as head, form of segments shown in figure, unusual. 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 Entomological Society of Canada (1863-1871); Entomological Society of Canada (1951- ); Entomological Society of Ontario. Ottawa [etc. ] Entomological Society of Canada [etc. ]
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