32 Hymenoptera in America North of Mexico 



Biology: Schedl, 1937. Ztschr. f. Angew. Ent., Beihefte 24: 51-54. — Schedl, 1939. Internatl. 

 Kong. Ent., Berlin 1938, sect. 7, bd. 3, pp. 2053-2103. 

 excitans Rohwer. Del, Va. to Fla. w. to III, Okla., Tex.; Brit. Honduras(?), El Salvador(?). 

 Host: Pi7ius clausa, P. echinata, P. elliottii, P. glabra, P. paiustris, P. rigida, P. 

 serotina, P. taeda. 

 Neodiprion (Neodiprion) excitans Rohwer, 1921. U. S. Natl. Mus., Proc. 59: 93. 9, 6. 



Biology: Hetrick, 1956. Forest Sci. 2: 182 ("exitans"). — Hetrick, 1959. Fla. Ent. 42: 159. 

 — Fatzinger, 1964. Jour. Econ. Ent. 57: 412 (larval survival of subfreezing temperatures). 

 —Wilkinson, 1964. Jour. Econ. Ent. 57: 786 (collection of cocoons in tree bands). 

 —Wilkinson, 1964. Canad. Ent. 96: 1142 (development in relation to oviposition and pine 

 needle growth). —Thatcher, 1967. U. S. Dept. Agr., Forest Pest Leaflet 105, 4 pp. 

 -Wilkinson, 1968. Fla. Ent. 51: 199. -Wilkinson, 1971. Fla. Ent. 54: 343-344 (on Pinus 

 clausa in Fla.). -Baker, 1972. U. S. Dept. Agr., Misc. Pub. 1175, pp. 449-450. — Doggett, 

 1972. Jour. Econ. Ent. 65: 701-702 (in N. C). 

 hetricki Ross. Va., S. C. Host: Piiius taeda, P. serotina. 

 Neodiprion hetricki Ross, 1955. Forest Sci. 1: 202. 9,6. 



Biology: Hetrick, 1956. Forest Sci. 2: 182. -Baker, 1972. U. S. Dept. Agr., Misc. Pub. 1175, p. 

 450 (hosts). 



lecontei (Fitch). N. B., Que., Ont. to Fla. w. to Minn., Mo., Ark., Tex. Ecology: Larvae feed on 

 many species of native and exotic pines, but adults oviposit only on hard pines. This 

 species shows a preference for trees less than 15 ft. high and is often a problem in 

 nurseries and plantations. Larvae may feed on the tender bark of young twigs as well 

 as on pine needles. Host: Pinus banksiayia, P. sylvestris, P. clausa, P. echinata, P. 

 elliottii, P. paiustris, P. resiyiosa, P. rigida, P. taeda, P. virginiana are preferred hosts. 

 The following are sometimes attacked when growing with the preferred hosts: Pinus 

 contorta, P. densiflora, P. monticola, P. niugho, P. nigra, P. ponderosa, P. strobus, P. 

 thunbergii, Cedrus deodara, Larix laricina, Picea abies. Thuja occidentalis. Redheaded 

 pine sawfly. 

 Lophyrus lecontei Fitch, 1858. N. Y. State Agr. Soc, Trans. 17: 744. 



Biology: Middleton, 1921. Jour. Agr. Res. 20: 741-760. — Middleton, 1922. U. S. Dept. Agr., 

 Farmers' Bui. 1259, 3 pp. — Beal, 1942. Jour. Forestry 40: 562-563 (host mortality). 

 — Schaffner, 1951. U. S. Dept. Agr., Leaflet 296, 4 pp. —Baldwin and House, 1954. Canad. 

 Jour. Zool. 32: 9-15 (effects of thermal conditioning in larva). —Green, 1954. Canad. Ent. 

 86: 261-274 (humidity reactions and water balance of larva). —Green, 1954. Canad. Ent. 86: 

 371-376 (function of eyes and antenna in orientation). —Benjamin, 1955. U. S. Dept. Agr., 

 Tech. Bui. 1118, 57 pp. (biology, control, literature prior to 1954). — MacAloney, 1957. U. S. 

 Dept. Agr., Forest Pest Leaflet 14, 4 pp. —Griffiths, 1960. Canad. Ent. 92: 430-435 

 (oviposition). — Finlayson, 1963. Canad. Ent. 95: 478-480 (parasites). —Wilson, 1970. U. S. 

 Dept. Agr., Forest Pest Leaflet 14 (rev.), 6 pp. —Baker, 1972. U. S. Dept. Agr., Misc. Pub. 

 1175, pp. 439-441. 

 maurus Rohwer. Ont., Wis., Minn. Host: Pinus banksiayia. 



Neodiprion (Neodiprion) ynaurus Rohwer, 1918. Ent. Soc. Wash., Proc. 20: 89. 9, 6. 



Biology: Atwood, 1943. In Atwood and Peck, Canad. Jour. Res., Sect. D, Zool. Sci. 21: 131. 

 —Tripp and Wallace, 1965. Canad. Dept. Forestry, Forest Ent. and Path. Branch Ann. 

 Rpt. 1965, p. 95. 

 merkeli Ross. Ga., Fla. Host: Pinus elliottii var. densa. Slash pine sawfly. 

 Neodiprion merkeli Ross, 1961. Ent. Soc. Amer., Ann. 54: 452. 9, 6. 



Biology: Wilkinson, 1965. Fla. Ent. 48: 271. -Wilkinson, 1968. Fla. Ent. 51: 199. (a hybrid of 

 N. warreni X A^. excitans ? ). —Wilkinson, 1971. Ent. Soc. Amer., Ann. 64: 241-247 

 (oviposition pattern; descriptions of stages). 

 nigroscutum Middleton. Ont., Mich., Wis. Host: Pinus banksiayia is preferred, but also on P. 

 resinosa, P. strobus. 

 Neodiprion (Neodiprion) nigroscutum Middleton, 1933. Canad. Ent. 65: 80. 9. 



Taxonomy: Wallace and Sipple, 1958. Jour. Econ. Ent. 51: 125 (distribution). 



