. Bulletin. Natural history; Natural history. 532 Illinois Natural History Survey Bulletin Vol. 29, Art, Pygidiothrips seminole Hood Pygidiothrips seminole Hood (1938c: 390). 9 . Type-locality.—Home- stead, Florida. Female (apterous).—Length dis- tended about mm. General color brown with antennal segment I and intermediate abdominal segments lightest, and abdominal segments VIII and IX darkest. Antennal segment II pale yellowish white. Tube brown at base and apex, bright yellow medially. Subintegumental pigment bright red. Body setae colorless, ringlet of thorn- like setae on abdominal ter
. Bulletin. Natural history; Natural history. 532 Illinois Natural History Survey Bulletin Vol. 29, Art, Pygidiothrips seminole Hood Pygidiothrips seminole Hood (1938c: 390). 9 . Type-locality.—Home- stead, Florida. Female (apterous).—Length dis- tended about mm. General color brown with antennal segment I and intermediate abdominal segments lightest, and abdominal segments VIII and IX darkest. Antennal segment II pale yellowish white. Tube brown at base and apex, bright yellow medially. Subintegumental pigment bright red. Body setae colorless, ringlet of thorn- like setae on abdominal tergite IX brown. Head as in Fig. 308 with cheeks smooth. Antennal segment III ex- tremely short and without sense cones, segment IV with one inner and one outer sense cone. Prothorax smooth. Anterior and posterior margins degenerate, becom- ing largely fractured into stipple-like platelets. Epimeral sutures incom- plete. Meso- and metanotum smooth. Fore legs unarmed. Pelta mostly stippled, with only traces of smooth, evenly sclerotized sections. Abdominal sternites seem- ingly without median setae in addi-. ng. 30S. —Pygidiothrips seminole, head and prothorax. tion to posterior pairs. Abdominal ter- gite IX with major posterior setae longer than tube, blunt to dilated; thornlike setae short, all nearly equal in size. Tube strongly ridged at base. Male.—Unknown. This is the only species in the genus. From the other species in the eastern United States which have antennal segment III exceptionally small, semi- nole can be distinguished by the shape of the tube, the six-segmented anten- nae, and the ringlet of thornlike setae on abdominal tergite IX. Pijgidiothrips seminole occurs from Homestead, Florida to Brownsville, Texas (USNM records), being found so far on dead branches. The possibili- ty of this species inhabiting Illinois is soil ewhat remote. Sporothrips Hood SpoTothrips Hood (1938c :410). Type- species by original designation.— Adiaphorothrips amplus Hood. Head
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