. Bulletin. Natural history; Natural history. 392 Illinois Natural History Si' Bulletin \'1. 29, An. 4 Acanthothrips albivittatus Hood Acanthoihrips albivittatus Hood (1908c: 374). 9 . Type-locality.—Blooming- ton, Illinois. Female (macropterous).—Length distended nearly 3 mm. General color in life dark brown with a white strip on each lateral margin of the body ex- tending from the posterior angle of the eyes to the anterior half of abdominal segment VIII but skipping abdominal segment I, and with a white half arc on the anterior part of the mesonotum. Body with much red subintegumental
. Bulletin. Natural history; Natural history. 392 Illinois Natural History Si' Bulletin \'1. 29, An. 4 Acanthothrips albivittatus Hood Acanthoihrips albivittatus Hood (1908c: 374). 9 . Type-locality.—Blooming- ton, Illinois. Female (macropterous).—Length distended nearly 3 mm. General color in life dark brown with a white strip on each lateral margin of the body ex- tending from the posterior angle of the eyes to the anterior half of abdominal segment VIII but skipping abdominal segment I, and with a white half arc on the anterior part of the mesonotum. Body with much red subintegumental pigment. Head reticulate, without enlarged cheek warts. Intermediate antennal segments vase shaped (Fig. 155). Pos- tocular setae long and pointed. Pronotum granulate, with many stipple-like dots. Epimera each with two well-developed setae which are dilated at tips. Meso- and metanotum with many stipple-like dots. Fore fe- mora each enlarged and armed with an inner subapical spur. Fore tarsi each with a prominent tooth (Fig. 184). Fore wings with a light median streak. Abdomen generally reticulate super- imposed with stipple-like dots lateral- ly. Pelta (Fig. 204) reticulate in the middle becoming granulate basally, bare laterally. Major posterior setae on abdominal tergite IX long and pointed. Male (macropterous).—Length distended about mm. Similar to fe- male in general color and structure. Abdominal sternite VIII with a nar- row, median, transverse glandular area. Major posterior setae of abdomi- nal tergite IX as in female, that is, all long and pointed. Larvae.—Often with prominent head Fig. JC'l.—Acanthothrips albivitlaius, pelta. This striking species can be recog- nized in life by the white lateral body stripes which extend onto the head up to the eyes. It is also easily distin- guished by the characteristic of stipple-like markings on the protho- rax. No other species in Illinois is so colored or sculptured. A. albivittatus probably occurs through
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
