. Bulletin. Natural history; Natural history. Mav, 1968 Stannarii: Tiik Tiirips m- â ^9^ Head (Fig. 205) reticulate, with many enlarged cheek warts. Inter- mediate antenna] segments vase shaped. Postocular setae moderate in size. Pronotum reticulate. Epimera each with one well-developed seta. Meso- and metanotum reticulate. Fore fe- mora enlarged and each armed with an inner subapical spur. Fore tarsi each with a prominent tooth. Fore wings evenly and moderately broad throughout. Abdomen reticulate. Pelta com- pletely reticulate. Major posterior se- tae on abdominal tergite IX moderat
. Bulletin. Natural history; Natural history. Mav, 1968 Stannarii: Tiik Tiirips m- â ^9^ Head (Fig. 205) reticulate, with many enlarged cheek warts. Inter- mediate antenna] segments vase shaped. Postocular setae moderate in size. Pronotum reticulate. Epimera each with one well-developed seta. Meso- and metanotum reticulate. Fore fe- mora enlarged and each armed with an inner subapical spur. Fore tarsi each with a prominent tooth. Fore wings evenly and moderately broad throughout. Abdomen reticulate. Pelta com- pletely reticulate. Major posterior se- tae on abdominal tergite IX moderate in size, slightly blunt at tips. Male (macropterous).âLength distended generally mm. Simi- lar to female in general color and structure. Abdominal sternite VIII with a narrow, median, transverse glandular area (Fig. 59). Larvae.âOften with prominent head horns. In Illinois this is the only species which has large cheek warts and white dots on the sides of the intermediate abdominal Fig. -Acanthothrips nodicorniK, head and prothorax. Acanthothrips nodicornis is wide- spread throughout Europe and north- ern North America. It may be native to Europe and introduced elsewhere. So far it has been found in Illinois only in the north, near Chicago. According to Yakhontov (1962) this species is apparently a predator. Illinois" records.âCook County: Riverside, July, 1909, Hood, reared from pupae taken July 14, under bark on willow, became adult July 19, and reared from nymphs taken July 14, on willow bark, matured July 24, many 9, cf, (USNM-Hood collection); Western Springs, June 16, 1949, Ross, Stannard, on dead willow twigs, 3 9 , 1 cT, several larvae. Acrosothrips Stannard Acrosothrips Stannard (19636:137). Type-species by original designa- I tion. â Trichothrips asymnietricus Watson. Head slightly longer than broad, nearly smooth. Eyes moderately small, shorter than the combined length of antennal segments I and II. Vertex broad at the apex between
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