172 



ILUNOIS BIOLOGICAL MONOGRAPHS 



[490 



Page 



semilutea 61 



setae 32 



simile 49 



similis 55, 56 



Siricidae 130 



Siricidae, family 114 



spiracles 32 



spiraeae 93, 94 



spisskornis 116 



Strongylogaster 52, 53 



Strongylogaster, species of 53 



Slrongylogastroidea 51 



subalbaius •. . 82 



subanal appendages 28, 126 



suranal lobe 26, 27 



suranal process 27, 127 



sychophanta 79 



Syntexis 1 10 



tabidus Ill 



tacitus 54 



Taxontis 51 



Tenthredinidae 129 



Tenthredinidae, family 42 



Tenthredinidae, subfamilies of 43 



Tenthredininae 44 



Tenthredininae, genera of 61 



Tenthredininae, subfamily 60 



Tenthredinoidea, families of 38, 133 



Tenthredinoidea, superfamily 37 



Tenthredo 61, 62 



Tenthredopsis 61 



tenth urostemum 27 



Page 



tenth urotergum 26 



tentorium 19 



thoracica 85 



thoracic legs 23, 122 



thorax 23 



Thrinax 52 



Thrinax, species of 53 



tibialor 63 



Tomostethus 92, 93 



tormae 18 



Trachelus 109, 111 



Tremex 115, 116 



Trichiocampus 71, 73 



Trichiocampus, species of 72 



Trichiosoma 65 



trilineata 88 



trimactdatus 110 



tnmk 22 



ulmi 97 



unicolor 48 



Unitaxonus 51 



ventralis 85 



vertex 16 



vescus 85 



virendus 84 



Xiphydria 113 



Xiphydriidae 130 



Xiphydriidae, family 112 



Xyela 42 



XyeUdae 129 



Xyelidae, family 39 



zabriskiei 102 



