Urocerus areolatus Cresson, 1867:375, ♀ - As Sirex areolatus: - Dalla Torre, 1894Dalla Torre, C.G. 1894. Catalogus Hymenopterorum. Vol. I: Tenthredinidae incl. Uroceridae (Phyllophaga & Xylophaga). G. Engelmann, 459. (distribution); Cockerell, 1899Cockerell, T.D.A. 1899. A first list of the hymenopterous families Tenthredinidae, Siricidae, Chrysididae, Proctotrypidae, Cynipidae, Chalcididae and Braconidae collected in New Mexico. Transactions of the Kansas Academy of Sciences 16:212-216. (distribution); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198. (distribution); Smith, 1988Smith, D.R. 1988. A synopsis of the sawflies (Hymenoptera: Symphyta) of America south of the United States: introduction, Xyelidae, Pamphiliidae, Cimbicidae, Diprionidae, Xiphydriidae, Siricidae, Orussidae, Cephidae. Systematic Entomology 13:205-261. (distribution); Leavengood & Smith, 2013Leavengood, Jr. J.M. & T.R. Smith 2013. The Siricidae (Hymenoptera: Symphyta) of Florida. Insecta Mundi 0309:1-16. (distribution).
Sirex gracilis Westwood, 1874:114, sex not indicated.America Septentrionalis, arboribus terbinthinis (Mus. Hopeiano Oxoniae, leg. Raddon). - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198.:126 ( listed as synonym of Sirex areolatus (Cresson, 1867)); Smith, 1988Smith, D.R. 1988. A synopsis of the sawflies (Hymenoptera: Symphyta) of America south of the United States: introduction, Xyelidae, Pamphiliidae, Cimbicidae, Diprionidae, Xiphydriidae, Siricidae, Orussidae, Cephidae. Systematic Entomology 13:205-261.:242 ( listed as synonym of Sirex areolatus (Cresson, 1867)).
Urocerus caeruleus Cresson, 1880:34, ♀.Vancouver's Island (leg. H. Edwards). - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198.:126 ( listed as synonym of Sirex areolatus (Cresson, 1867)); Smith, 1988Smith, D.R. 1988. A synopsis of the sawflies (Hymenoptera: Symphyta) of America south of the United States: introduction, Xyelidae, Pamphiliidae, Cimbicidae, Diprionidae, Xiphydriidae, Siricidae, Orussidae, Cephidae. Systematic Entomology 13:205-261.:242 ( listed as synonym of Sirex areolatus (Cresson, 1867)).
Sirex apicalis Kirby, 1882:377, ♂. Holotype ♂, Vancouver's Island (BMNH, leg. Hawkins). - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198.:126 ( listed as synonym of Sirex areolatus (Cresson, 1867)); Smith, 1988Smith, D.R. 1988. A synopsis of the sawflies (Hymenoptera: Symphyta) of America south of the United States: introduction, Xyelidae, Pamphiliidae, Cimbicidae, Diprionidae, Xiphydriidae, Siricidae, Orussidae, Cephidae. Systematic Entomology 13:205-261.:242 ( listed as synonym of Sirex areolatus (Cresson, 1867)).