Index to Taxa of Hymenoptera 2453 



similis (Timberlake), Metaphycus 927 



similis Timberlake, Perdita [s] 1892 



similis Timberlake and Michener, 



Proteriades 2012 



simillima Ashmead, Bathymetis 426 



simillima (Cresson), Agathis 195 



simillima Cresson, Anthophora [s] 2165 



simillima Dalla Torre, Dryophanta 1077 



simillima Emery, Strumigenys 1408 



simillima Mickel, Pseudomethoca 1304 



simillima Robertson, Melissodes 2151 



simillima Rohwer, Macrophya 120 



simillima Smith, Osmia 2049 



simillima (Smith), Pseudomethoca 1303 



simillimum (Smith), Tetramorium 1401 



simillimus Ashmead, Rogas 181 



simillimus Ashmead, Spathius 159 



simillimus Cresson, Philanthus 1721 



simillimus Gahan, Habrocytus 813 



simillimus Smith, Gorytes 1694 



siminiger (Cresson), Cardiochiles 264 



Simophion Cushman 700 



Simplemphytus MacGillivray 103 



simplex (Cresson), Atanycolus 161 



simplex (Cresson), Hoplitis 2019 



simplex (Malloch), Mimesa [s] 1596 



simplex Provancher, Megachile 2056 



simplex Robertson, Nomada 2099 



simplex Robertson, Paralictus 1974 



simplex Robertson, Triepeolus 2096 



simplex Smith, Andrena 1783 



simplex Viereck, Zaplatystoma 674 



simplex Walker, ormocerus 825 



simplicicornis Fox, Nysson 1687 



simplicicornis (Fox), Pseneo 1598 



simplicicornis (Norton), Trichiocampus 50 



simplicicornis (Viereck), Barycnemis 694 



simplicicornis Viereck, Cymodsa 670 



simplicicoxa Swenk, Nomada 2112 



sLmplicior (Brues), Codrus 1126 



simplicior Heinrich, Rubicundiella 504 



simplicior Michener, Ashmeadiella [s] 2030 



simplicipes (Cresson), Apophua 564 



simplicipes Rohwer, Psiloglossa 1470 



simplicis Viereck, Apanteles 247 



simplicissima Dalla Torre, Megachile 2056 



simplicistigma (Walsh), Eudecatoma 845 



simpliciventris Melander, Mutilla 1297 



simulans Ashmead, Bathymetis 426 



simulans (Ashmead), Codrus 1126 



simulans (Ashmead), Diapria 1148 



simulans Cresson, Colletes [s] 1751 



simulans (Fouts), Zygota 1135 



simulans (Provancher), Praon 299 



simulans Rohwer, Dolerus 47 



simulans (Swenk and Cockerell), 



Pterosarus 1859 



simulans Timberlake, Perdita [s] 1913 



simulans (Walley), Dusona [s] 642 



simulans Wheeler, Pheidole 1372 



simulata Kinsey, Disholcaspis 1092 



simulata Provancher, Andrena 1785 



simulata Smith, Andrena 1783 



simulator Ashmead, Bathymetis 426 



simulator Ashmead, Ichneumon 505 



simulator Cameron, Ancistrocerus 1504 



simulator Michener, Colletes 1753 



simulator Muesebeck, Orgilus 280 



simulator Perkins, Chalcogonatopus 1247 



simulatrix Gahan, Orasema 876 



simulatrix (Kinsey), Atrusca 1090 



simulatrix Viereck and Cockerell, 



Eucerceris 1739 



simulatus MacGillivray, Tenthredo 117 



sinaloa Viereck, Andrena [s] 1821 



sinaloae Allen, Tiphia 1260 



sinaloae Cameron, Pompilus 1567 



sinaloanus Olsen, Pogonomyrmex 1356 



sinannula Ross, Macrophya 121 



Sinarachna Townes 337 



sinefovea Fischer, Phaenocarpa 227 



singulare (Cresson), Dianthidium 1997 



singularis Ashmead, Belonura 814 



singularis (Ashmead), Xyalophora 1050 



singularis Bugbee, Eurytoma [s] 853 



singularis Dahlbom, Passaloecus [s] 1606 



singularis (Howard), Pediobius 1018 



singularis Kieffer, Pantoclis 1134 



singularis Linsley and Michener, 



Protepeolus 2087 



singularis Muesebeck, Scelio 1152 



singularis Osten Sacken, Cynips 1088 



singularis Provancher, Atractodes 739 



singularis Smith, Crabro 1678 



singularis Smith, Sphex 1580 



singularis Viereck, Andrena 1777 



singulus (Bohart), Microdynerus 1477 



sinibasis Fischer, Aspilota 222 



sinipennis Girault, Anaphes 1029 



Sinophorus Foerster 624 



sinopis Bohart, Ancistrocerus [s] 1503 



sinuata (Cushman), Temelucha 691 



sinuata Scullen, Eucerceris 1740 



sinuatus Evans, Aporinellus 1567 



sinuatus Fabricius, Crabro 1677 



sinuatus Fischer, Gnaptodon 173 



sinuatus Provancher, Thyreopus 1675 



sinuatus Williams, Plenoculus 1635 



sinuosum Say, Hedychrum 1223 



sinuosus Dasch, Cidaphus 704 



sinus Townes, Netelia 364 



siouxensis Dreisbach, Pycnopompilus 1565 



siouxensis Mickel, Philanthus 1725 



siouxensis (Mickel), Psenulus 1602 



siouxensis Swenk, Nomada 2104 



siphonophorae (Ashmead), Aphelinus 892 



siphonophorae (Ashmead), 



Pachyneuron 796 



siphonophorae (Ashmead), 



Pseudeucoila 1057 



Siphonura Nees 769 



Sirex Linnaeus 126 



SIRICIDAE 125 



SIRICINAE 126 



SIRICOIDEA 125 



siskiyouensis Marlatt, Pristiphora 65 



sisymbrii (Ashmead), Chrysolampus 773 



sisymbrii (Cockerell), Lasioglossum 1958 



