. Bulletin. Natural history; Natural history. Mav, 19(i8 Stannard : TllHll'S !)!â 491 Plectrothrips antennatus Hood Plectrothrips antennatus Hood (1908f: 370). 9, cT. Type-locality.âUr- bana, Illinois. Female (macropterous).âLength distended about mm. Color dark brown in head, most antennal seg- ments, thorax, and femora; light brown to brown in abdomen and base of antennal segment III; tibiae and tube yellow to yellowish brown; tarsi yellow. Wings nearly colorless. Body with red subintegumental pigment. Head (Fig. 266) smooth. Eyes mod- erately large. Ocelli present. Postocu- lar
. Bulletin. Natural history; Natural history. Mav, 19(i8 Stannard : TllHll'S !)!â 491 Plectrothrips antennatus Hood Plectrothrips antennatus Hood (1908f: 370). 9, cT. Type-locality.âUr- bana, Illinois. Female (macropterous).âLength distended about mm. Color dark brown in head, most antennal seg- ments, thorax, and femora; light brown to brown in abdomen and base of antennal segment III; tibiae and tube yellow to yellowish brown; tarsi yellow. Wings nearly colorless. Body with red subintegumental pigment. Head (Fig. 266) smooth. Eyes mod- erately large. Ocelli present. Postocu- lar setae long, pointed, placed quite far behind eyes. Antennae eight seg- mented; segment II with dorsal sen- sorium placed basally; segment III fairly small with one inner and two outer, stout, sense cones; segment VIII long and slender. Mouth cone narrowly rounded. Maxillary stylets when retracted placed fairly close to- gether within the head. Prothorax (Fig. 266) with only. Fig. 2G6.^Pleclrothrips anlennatnH, head and prothorax. epimeral setae well developed, these pointed to nearly blunt. All other se- tae minute. Praepectus absent. Meta- notum faintly longitudinally striate. Fore wings not narrowed in the mid- dle, each with about eight accessory fringe cilia. Fore tibiae each with a small apical wart or tooth. Mid and hind tibiae with a pair of well- developed apical spurs. Fore tarsi each armed with a large tooth. Pelta (Fig. 150) large. Abdominal segment II (Fig. 150) fractured lat- erally into tiny platelets. Wing- holding setae slightly sigmoidal. Ab- dominal tergite IX with major poste- rior setae shorter than tube, pointed. Tube short and fairly heavily sclero- tized; terminal setae long. Male (macropterous).âLength distended about mm. Similar to female in general color and structure. Abdominal sternite VIII apparently without glandular area. Abdominal tergite IX with major lateral posterior setae apparently not more reduced than in female. The form of the pr
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
