36 Hymenoptera in America North of Mexico 



scutellatus Rohwer. Idaho, Wash. Host: Pseudotsuga menziesii. 



Neodiprion (Neodiprion) scutellatus Rohwer, 1918. Ent. Soc. Wash., Proc. 20: 86. 9. 



Biology: Smith, 1962. Pan-Pacific Ent. 38: 189 (parasites; as scutellarisd)). 

 sertifer (Geoffroy). Maine, Ont. to N. J. w. to S. Dak., Iowa, Mo.; Europe to Japan, Korea. 



Accidentally introduced, first found in N. J. in 1925. Host: Pmus austriaca, P. cembra, 

 P. banksiana, P. densiflora, P. echinata, P. montana, P. mugho, P. nigra, P. ponderosa, 

 P. resiiwsa, P. rigida, P. strobus, P. sylvestris, P. thunbergii, and many other pines in 

 Eurasia. European pine sawfly. 



Tenthredo sertifera Geoffroy, 1785. In Fourcroy, Ent. Paris, v. 2, p. 378. 



Tenthredo pectinata rufa Retzius, 1783. Genera et Species Insectorum, p. 74. Preocc. on 

 pg. 71. 



Tenthredo pini rufa Villers, 1789. Linn. Ent. 3: 88. 



Tenthredo juniperi Christ, 1791. Naturgesch. Class. NomencL, Ins. p. 432. 



Tenthredo rufa Latreille, 1807. Gen. Crust. Ins., v. 3, p. 230. 



Lophyrus piceae Lepeletier, 1823. Monog. Tenthred., p. 56. 9 , 6 . 



Lophyrus basalis Matsumura, 1915. Dai-Nippon Gaityu Zensho 2: 288. 



Biology: Soraci, 1939. N. Y. Ent. Soc, Jour. 47: 124. — Schaffner, 1939. Jour. Econ. Ent. 32: 

 887-888. -Hamilton, 1941. Natl. Shade Tree Conf., Proc. 17: 110-118. —Schaffner, 1943. 

 Jour. Forestry 41: 583. —Girth and McCoy, 1946. N. J. Dept. Agr., Cir. 363, 18 pp. —Bird 

 and Whalen, 1953. Canad. Ent. 85: 433 (virus). —Bird, 1953. Canad. Ent. 85: 437-446 (virus 

 diseases). —Baldwin and House, 1954. Canad. Jour. Zool. 32: 9 (thermal conditioning 

 effects on larva). —Benjamin, Larson, and Drooz, 1955. Jour. Forestry 53: 359. — Finlayson 

 and Finlayson, 1958. Canad. Ent. 90: 223-225 (parasites). —Wilson, 1966. Jour. Econ. Ent. 

 59: 1043-1049 (effect of population levels on young scotch pines). —Griffiths, 1959. Canad. 

 Ent. 91: 501-512. —Ghent, 1959. Canad. Jour. Zool. 37: 267 (oviposition). —Will, 1960. Pa. 

 Acad. Sci., Proc. 34: 229. —Finlayson, 1960. Canad. Ent. 92: 20-40 (parasites). —Lyons and 

 Griffiths, 1962. Canad. Ent. 94: 994 (development in cocoons). —Wallace and Sullivan, 1963. 

 Canad. Ent. 95: 1051-1066 (effect of temperature on development in cocoon). —Lyons, 



1964. Ont. Ent. Soc, Proc. 95: 5-37. —Lyons, 1964. Canad. Ent. 96: 1373 (spatial 

 distribution). —Wilson, 1965. U. S. Dept. Agr., Forest Pest Leaflet 98, 8 pp. — Henson, 



1965. Canad. Ent. 97: 773 (rearing techniques). —Sullivan, 1965. Canad. Ent. 97: 970 

 (ability of eggs to withstand low winter temperatures). —Sullivan and Wallace, 1965. 

 Canad. Jour. Zool. 43: 233-245 (photoperiodism in development). — Austara, 1966. Norske 

 Skogsforsoksv. Meddel. 21: 5-15. —Rose and Sipple, 1966. Canad. Ent. 98: 39-45 (cocoon 

 and parasite distribution). —Wilson, 1966. U. S. Dept. Agr., Forest Pest Leaflet 99, 4 pp. 

 —Wallace and Sullivan, 1966. Canad. Jour. Zool. 44: 147 (geographic variation in 

 photoperiod reaction). —Sullivan and Wallace, 1967. Canad. Ent. 99: 834-850 (temperature 

 and photoperiod effect on diapause). —Griffiths, 1968. Canad. Ent. 100: 1095-1099 

 (parasites). —Sullivan and Wallace, 1968. Canad. Jour. Zool. 46: 959-963. —Sullivan and 

 Wallace, 1968. Canad. Jour. Zool. 46: 1082-1083 (photoperiod response). —Griffiths, 1969. 

 Canad. Ent. 101: 673-713 (parasites). —Wilson, 1971. U. S. Dept. Agr., Forest Pest Leaflet 

 (rev.), 6 pp. —Austara 1971. Norsk. Ent. Tidsskr. 18: 45-48 (cold hardiness in eggs). 

 —Baker, 1972. U. S. Dept. Agr., Misc. Pub. 1175, pp. 447-448. —Eisner, et al. 1974. Science 

 184: 996-999 (defensive use of a plant resin). 



Morphology: Watson, 1955. Canad. Ins. Pest Rev. 33: 229 (gynandromorphs). — Togashi, 1958. 

 Kontyu 25: 6-12 (internal reproductive organs). — Marek, 1963. Ceskoslov. Spolec Zool. 

 Vest. 27: 115-124 (physiology). — Pschorn-Walcher, 1970. Ztschr. f. Angew. Ent. 66: 63-68 

 (morphological differences between alpine and lowland populations). 

 tsugae Middleton. Mont., Idaho, Alaska, B. C, Wash., Oreg. Host: Tsuga heterophylla is 



preferred, but also on Tsuga mertensiayia, Picea sitcheyisis, and Abies aynabilis when 

 adjacent to preferred host. Hemlock sawfly. 

 Neodiprion (Neodiprion) tsugae Middleton, 1933. Canad. Ent. 65: 77. 9, 6. 



Biology: Hopping and Leech, 1936. Canad. Ent. 68: 71-91. — Furniss and Dowden, 1941 Jour. 

 Econ. Ent. 34: 46-52. —Downing, 1959. U. S. Dept. Agr., Forest Pest Leaflet 31, 4 pp. 

 — Torgersen, 1969. Ent. Soc. Brit. Columbia, Proc. 66: 53-62 (parasites). — Schmiege, 1970. 



