632 Hymenoptera in America North of Mexico 



what we now call Tersilochinae (cf. Hincks, 1945), and Horstmann (1970, 1971) studied a 

 specimen of Probles rufipes (Holmgren) which had been identified as Porizon moderator by Fal- 

 len. For that reason, Horstmann (1970) suggested that an application for the suppression of the 

 names Porizon and Porizontinae should be made to the International Commission on Zoological 

 Nomenclature, and Fitton and Gauld (1976) suggested that the case needed to be referred to the 

 Commission. If the facts revealed by Horstmann (1970) had been established soon after Roman 

 (1932) published on the identity of Ichneumon moderator, it might then have been logical to 

 seek a ruHng that would have made Tersilochus rufipes Holmgren the type-species of Porizon. 

 Acceptance of /. moderator Linnaeus as the type-species of Porizon would leave us with a 

 zoological rather than nomenclatural problem, and would eliminate any need for making an ap- 

 plication to the Commission. I believe that the option of regarding the nomenclatural problem as 

 settled and striving to solve the zoological one is the option which would be most uniformly ac- 

 cepted. I believe that Dr. Horstmann concurs with me on this, and I am hopeful that Drs. Fitton 

 and Gauld will also. 



Porizon is a small genus of Holarctic and Neotropic (southern Mexico) distribution. Most of 

 the species are parasitic on microleptidoptera which feed on coniferous trees, especially cone 

 moths and needle miners. P. tranafuga (Gravenhorst), which is placed in Porizon only provi- 

 sionally, parasitizes Gracilaria syringella (F.), the lilac leaf miner, and two specimens of cupres- 

 si (Ashmead), which has otherwise been reared only from conifer-feeding hosts, were reared 

 from a leaf tier on Rliamnus pumhianus. 



Taxonomy: Fabricius, 1804. Systema Piezatorum, p. 137. — Viereck, 1914. U. S. Natl. Mus., 

 Bui. 83; 122, 144, 145. -Roman, 1932. Ent. Tidskr. 53: 9. — Townes, 1945. Amer. Ent. Soc, 

 Mem. 11: 592, 593, 597, 598, 602, 73. —Hincks, 1945. Entomologist 78: 90 (including opinions 

 of J. F. Perkins). —Townes and Townes, 1951. In Muesebeck et al., U. S. Dept. Agr., Agr. 

 Monog. 2: 357-358. —Townes, 1965. Polskie Pismo Ent. 35: 410. —Townes, 1970 (1969). 

 Amer. Ent. Inst., Mem. 13: 151, 167-168, 278. —Horstmann, 1970. Bayer. Ent., 

 Nachrichtenbl. 19: 77-79. —Townes, 1971. Amer. Ent. Inst., Mem. 17: 241. —Fitton and 

 Gauld, 1976. Systematic Ent. 1: 248-249. 

 argyresthiae (Rohwer), n. comb. Southwestern Oreg. Host: Argyresthia libocedrella Bsk. 



Known from a long series of specimens reared at Ashland, Oreg. in 1914. 

 Phaedroctonus argyresthiae Rohwer, 1917. U. S. Natl. Mus., Proc. 53: 162. cJ, 9. 

 cupressi (Ashmead), n. comb. Que., Maine, N. H., s.w. Va., w. N. C, w. Iowa. , s.w. Alaska, w. 



Wash., n. Cahf. Host: Periploca nigra Hodges, Epinotia nanana (Treit.), Argyresthia 



cupressella Wlsm., A. thuiella Pack., needle miner on Abies concolor, leaf tier on 



Rhamnus purshianus. 

 Limneria cupressi Ashmead, 1890 (1889). U. S. Natl. Mus., Proc. 12: 437. 9. 

 Phaedroctonus minutus Ashmead, 1902. Wash. Acad. Sci., Proc. 4: 235. 9. 

 Phaedroctonus epinotiae Cushman, 1935. Wash. Acad. Sci., Jour. 25: 559. cJ, 9. Formerly 



preocc. in Campoplex by Viereck, 1912. N. syn. 

 Campoplex nanana Townes, 1945. Amer. Ent. Soc, Mem. 11: 598. N. name for P. epinotiae 



Cushman. N. syn. 

 laspeyresiae (Rohwer), n. comb. Colo., N. Mex., w. Mont., n. Idaho, s.e. Wash., s.w. Oreg., n.e. 



Calif. Host: Laspeyresia piperana (Kft.), L. toreuta (Grt.). 

 Meleborus{\) laspeyresiae Rohwer, 1917. U. S. Natl. Mus., Proc. 53: 161. 9. 

 milleri (Rohwer), n. comb. Southwestern Oreg. Host: Dioryctria abietella (D. and S.). Known 



only from the holotype which is a rather poor specimen from Ashland, Oreg. This 



species is placed in Porizon only tentatively; the petiole is similar to that of Nemeiitis 



spp., and the second intercubitus is present, although abnormally positioned in one of 



the fore wings of the holotype. 

 Angitia milleri Rohwer, 1917. U. S. Natl. Mus., Proc. 53: 159. 9. 

 moderator (Linnaeus). Vt., N. Y., Ont., N. Mex., w. Mont, Idaho, s.-coastal Akaska; Europe. 



Host: Laspeyresia youngana (Kft.). A 1972 letter I received from Dr. Klaus Horstmann 



says that males are apparently uncommon in Europe. 

 Ichneumon moderator Linnaeus, 1758. Syst. Nat., ed 10, v. 1, p. 564. 9. 

 Campoplex flaviventris Ratzeburg, 1844. Ichn. d. Forstins., v. 1, p. 98. 9. 

 Limneria (Phaedroctonus) ensifera Brischke, 1880. Naturf. Gesell. Danzig, Schr. 4: 172. 9. 

 Phaedroctonus temporalis Cushman, 1935. Wash. Acad. Sci., Jour. 25: 560. 9. N. syn. 



