. Bulletin. Natural history; Natural history. 262 Illinois Natural History SlIRVK^â Bulletin Vo]. 29, Art. 4 (segment III less than or not much greater than 1' 2 times as wide as seg- ment V at their greatest width), with smaller sensorial rings, each ring formed by a row or 1' 2 rows of staggered sen- soria; in other flowers 5 Abdominal tergites, along lateral mar- gins, with numerous, closely set mi- crosetae, and with fringe of comb plates generally longer than length of base; on flowers of azalea azaleae Abdominal tergites, along lateral mar- gins, with fewer microsetae, and with fringe of


. Bulletin. Natural history; Natural history. 262 Illinois Natural History SlIRVK^â Bulletin Vo]. 29, Art. 4 (segment III less than or not much greater than 1' 2 times as wide as seg- ment V at their greatest width), with smaller sensorial rings, each ring formed by a row or 1' 2 rows of staggered sen- soria; in other flowers 5 Abdominal tergites, along lateral mar- gins, with numerous, closely set mi- crosetae, and with fringe of comb plates generally longer than length of base; on flowers of azalea azaleae Abdominal tergites, along lateral mar- gins, with fewer microsetae, and with fringe of comb plates generally shorter than length of base (Fig. 93), on other flowers 6 Abdominal tergites II-V with median group of posterior setae well developed, often fused at base; on male catkins of Salix interior salicis Abdominal tergites II-V with median group of posterior setae sparse, never fused at base; on flowers of buckeye . aesculi Fore wings entirely brown; abdominal tergite X long, basal portion to dorsal slit twice the length of the dorsal slit (Fig. 90); occurring on host in late summer auranticornis Fore wings off-white subbasally, brown in remaining portions; abdominal ter- gite X shorter, basal portion to dorsal slit hardly more than 1' 2 times the length of the dorsal slit (Fig. 91); oc- curring on host in spring 8 Abdominal tergites II-V with posterior lateral comb setae, especially extreme lateral ones, slightly fused at base to other setae; mesoscutal striations spaced well apart quercicola Abdominal tergites II-V with all poste- rior lateral comb setae independent and never even slightly fused to other setae; 10. 11. 13. 14. 15. 16. mesoscutal striations spaced close to- gether 9 Pronotal striae conspicuous, placed near- ly as close together as striae of meso- cutum; on buds of wild grapes vitis Pronotal striae weak, not placed as close together as striae of mesoscutum; on flowers of wild roses analis Abdominal tergite IX with a pair of finger-like project


Size: 1385px × 1805px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory