- Thomas, R. T. S. 1960a. Insects associated with dying cacao trees in west New Guinea. Papua New Guinea Agricultural Journal 12196-197.
- Thomas, R. T. S. 1960b. Secundair optredende insecten op cacao. Entomologische Berichten 2077-78.
- Peck, S. B., and M. C. Thomas. 1998. A distributional checklist of the beetles (Coleoptera) of Florida., 180 pp. pp..
- Thomas, J. B. 1967. A comparative study of gastric caeca in adult and larval stages of bark beetles (Coleptera: Scolytidae). Proceedings of the Entomological Society of Ontario 97:71-90.
- Thomas, H. A., B. F. Swindel, W. L. Hafley, and R. J. Monroe. 1972. Probabilistic phototactic behavior in a bark beetle. Canadian Journal of Zoology 50:473-476.
- Thomas, J. B. 1970a. Bark beetle problems in pine plantations. O-197.
- Thomas, J. B. 1966. Some Scolytidae from the Sierra Madre Occidental in Mexico. Canadian Entomologist 98:871-875.
- Thomas, T. L., and J. K. Agee. 1986. Prescribed fire effects on mixed conifer forest structure at Crater Lake Oregon. Canadian Journal of Forest Research 16:1082-1087.
- Brotschol, J. V., L. Nunnally, G. Namkoong, and H. A. Thomas. 1977. Studies on enzyme variation in the southern pine beetle . Elisha Mitchell Scientific Society, Journal 93:91.
- Carothers, W. A., T. S. Price, W. H. Hoffard, Thomas, and Brandau. 1981. Biological evaluation of Ips bark beetle infestations on Cumberland Island National Seashore, Georgia. United States Department of Agriculture, Forest Service, Southern Region, State and Private Forestry, Forest Pest Management, Report 81-1-52.
- Herdy, H., and J. B. Thomas. 1961. The seasonal development of a species of Conophthorus Hopkins (Coleoptera: Scolytidae) in the shoots of jack pine, Pinus banksiana (Lamb), in Ontario . Canadian Entomologist 93:936-940.
- Mott, R. L., and A. Thomas. 1977. Pine beetles raised in lab . North Carolina Agricultural Experiment Station, Research in Farming 35:9.
- Mott, R. L., H. A. Thomas, and G. Namkoong. 1977. In vitro rearing of larval southern pine beetles, Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae) on tissue-cultured loblolly pine callus . New York Entomological Society, Journal 85:191-192.
- Namkoong, G., R. L. Mott, and H. A. Thomas. 1978. In vitro rearing of southern pine beetle larvae on tissue-cultured loblolly pine callus . Entomological Society of America, Annals 71:564-566.
- Namkoong, G., J. H. Roberds, L. R. Nunnally, and H. A. Thomas. 1979. Isozyme variations in populations of southern pine beetles . Forest Science 25:197-203.
- Price, T. S., and K. G. Thomas. 1979. Southern pine beetle on the rampage . TOPS, Georgia Forestry Association, Atlanta, Georgia 1979:22-23.
- Demilo, A. B., H. A. Thomas, A. B. Borkovec, and J. A. Richmond. 1978. Mortality and sterility of southern pine beetles treated with chemosterilants and growth regulators . Georgia Entomological Society, Journal 13:237-240.
- Takai, S., E. S. Kondo, and J. B. Thomas. 1979. Seasonal development of Dutch elm disease on white elms in central Ontario, Canada. II. Following feeding by the North American native elm bark beetle. Canadian Journal of Botany 57: 353-359.
- Thomas, A. V., and F. G. Browne. 1950. Notes on air-seasoning of timber in Malaya . Marseille 13:214-223.
- Thomas, C. 1876. Sixth report of the state entomologist on the noxious and beneficial insects for the state of Illinois . First Biennial Report, Part 1:146.
- Thomas, G. M. 1957. Climate and growth rate as related to an outbreak of silver fir beetles (Pseudohylesinus grandis and P. granulatus). United States Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, Research Note 150. 5 p.
- Thomas, G. M., and G. O. Poinar. 1973. Report of diagnoses of diseased insects 1962-1972 . Hilgardia 42:261-359.
- Thomas, G. M., and K. H. Wright. 1961. Silver fir beetles. United States Department of Agriculture, Forest Service, Forest Pest Leaflet 60. 7 p.
- Thomas, G. P. 1965. Forest entomology and pathology laboratory Calgary, Alberta, major problems of the region . Canada Department of Forestry, Forest Entomology and Pathology Branch, Annual Report 1965:121-122.
- Thomas, H. A. 1981. Bioassay of pine bark extracts as biting stimulants for the southern pine beetle. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, Research Note SE-302. 5 p.
- Thomas, H. A., J. D. White, C. F. Speers, and H. Conrad. 1975. Dispensing pressurized aerosols of southern pine beetle pheromone under field conditions . Georgia Entomological Society, Journal 10:265-271.
- Thomas, H. E., W. G. Willis, and R. A. Keen. 1978. Controlling Dutch elm disease. Kansas State University, Agricultural Experiment Station, Bulletin 626. 16 p.
- Thomas, I. 1947. Common names of British insects and other pests. Association of Applied Biologists.
- Thomas, I., and H. W. Janson. 1957. Common names of British insects and other pests. Ministry of Agriculture, Technical Bulletin 6. 48 p.
- Thomas, J. B. 1953. Mortality of white spruce, Lake Nipigon area . Canada Department of Agriculture, Forest Biology Division, Bi-monthly Progress Report 9:2.
- Thomas, J. B. 1954. Mortality of white spruce, Lake Nipigon area . Canada Department of Agriculture, Forest Biology Division, Bi-monthly Progress Report 10:1-2.
- Thomas, J. B. 1955. Notes on insects and other arthropods in red and white pine logging slash . Canadian Entomologist 87:338-344.
- Thomas, J. B. 1957. The use of larval anatomy in the study of bark beetles (Coleoptera: Scolytidae). Canadian Entomologist 89(Supplement 5). 45 p.
- Thomas, J. B. 1958. Mortality of white spruce in the Lake Nipigon region of Ontario . Forestry Chronicle 34:393-404.
- Thomas, J. B. 1960. The immature stages of Scolytidae: the tribe Xyloterini . Canadian Entomologist 92:410-419.
- Thomas, J. B. 1961. The life history of Ips pini (Say) (Coleoptera: Scolytidae) . Canadian Entomologist 93:384-390.
- Thomas, J. B. 1962. Studies of the immature stages of bark beetles. Page 85 in Canada Department of Forestry, Forest Entomology and Pathology Branch, Annual Report 1962.
- Thomas, J. B. 1963. Studies of the immature stages of bark beetles. Pages 85-86 in Canada Department of Forestry, Forest Entomology and Pathology Branch, Annual Report 31 March 1963.
- Thomas, J. B. 1964. Studies of immature stages of bark beetles. Pages 84-85 in Canada Department of Forestry, Forest Entomology and Pathology Branch, Annual Report 1964.
- Thomas, J. B. 1965a. Effect of insects on a girdled white pine plantation . Canada Department of Forestry, Forest Entomology and Pathology Branch, Bimonthly Progress Report 21:2.
- Thomas, J. B. 1965b. Studies of the immature stages of bark beetles. Page 94. Canada Department of Forestry, Forest Entomology and Pathology Branch, Annual Report 1965.
- Thomas, J. B. 1965c. The immature stages of Scolytidae: the genus Dendroctonus Erichson . Canadian Entomologist 97:374-400.
- Thomas, J. B. 1970b. Lindane as a control for Ips pini (Say) in red pine plantation . Canada Department of Fisheries and Forestry, Canadian Forestry Service, Bimonthly Progress Report 26:47-48.
- Thomas, J. B. 1971a. Smaller European elm bark beetle found in Sault Ste. Marie, Ontario. Canada Department of the Environment, Canadian Forestry Service, Bimonthly Research Notes 27(1):3.
- Thomas, J. B. 1971b. The immature stages of Scolytidae: the genus Conophthorus (Coleoptera: Scolytidae) . Canadian Entomologist 103:1021-1026.
- Thomas, J. B. 1972. Insect vectors of Dutch elm disease, chiefly Hylurgopinus rufipes (Eichh.). Canada Department of Environment, Canadian Forestry Service, Forest Research Laboratory, Ontario Region, Sault Ste. Marie, Ontario, Internal Report 0-38. 19 p.
- Thomas, J. B., and D. E. Bright. 1970. A new species of Dendroctonus (Coleoptera: Scolytidae) from Mexico . Canadian Entomologist 102:479-483.
- Thomas, J. B., and J. Krywienczyk. 1966. Preliminary results of a serological examination of some Scolytidae and Curculionidae . Canadian Entomologist 98:1094-1099.
- Thomas, J. B., and O. H. Lindquist. 1956. Notes on bark beetles and associated insects feeding in pine shoots . Canada Department of Agriculture, Forest Biology Division Bi-monthly Progress Report 12:2.
- Thomas, J. B., and C. R. Sullivan. 1971. Preliminary results of cold-hardiness tests of Scolytus multistriatus (Marsham). Canada Department of the Environment, Canadian Forestry Service, Forest Research Laboratory, Sault Ste. Marie, Ontario Region, Internal Report 0-26. 5 p.
- Thomas, J. E., and C. A. Bower. 1962. The occurrence of Dutch elm disease in Oklahoma . Plant Disease Reporter 46:463.
- Thomas, K. M. 1949. The coffee berry borer (Stephanoderes hampei Ferr) . Indian Coffee Board, Monthly Bulletin 13:83-88.
- Thomas, R. T. S. 1961. Coffee pests in Netherlands New Guinea . Bulletin of Economic Affairs, Netherlands New Guinea (Agricultural Series) 3:19-24.
- Thomas, R. T. S. 1962. Checklist of pests on some crops in West Irian. Department of Economic Affairs, Hollandia, West Irian, Agricultural Series, Bulletin 1. 126 p.
- Thomas, W. D., G. M. List, M. E. Michaelson, and W. D. Buchanan. 1948. Dutch elm disease in Colorado . Plant Disease Reporter 32:317.
- Tomescu, N., E. W. Clark, J. White, and H. Thomas. 1978. Factors influencing response of Dendroctonus frontalis (Coleoptera, Scolytidae) to beetle- and host-produced attractants . Travaux du Museum d'Histoire Naturelle Greigore Antipa 19:285-288.
- Muesebeck, C. F. W., K. V. V. Krombein, and H. K. Thomas. 1951. Hymenoptera of America north of Mexico, synoptic catalog. United States Department of Agriculture, Monograph 2. 1420 p.
- Price, T. S., and K. G. Thomas. 1982. Little bugbig trouble . TOPS 19824-5, 20, 22.
- Thomas, P. R. 1986. Infestation by pine and spruce bark beetles in British Columbia and its effect on kraft and mechanical pulping. Pages 35-47 in R. W. Nielson, Harvesting and processing of beetle-killed timber. Proceedings of a symposium. Special publication, Forintek Canada Corporation SP-26. 53 p.
- Thomas, T. L., and J. K. Agee. 1986. Prescribed fire effects on mixed conifer forest structure at Crater Lake Oregon . Canadian Journal of Forest Research 16:1082-1087.
- Thomas, M., and W. Dixon. 1992. Pine shoot beetle, Tomicus piniperda (Linnaeus): A potential threat to Florida pines (Coleoptera: Scolytidae). Florida Department of Agriculture & Consumer Services, Entomology Circular 354. 2 pp.
- Peck, S., and M. Thomas. 1998. A distributional checklist of the beetles (Coleoptera) of Florida. Arthropods of Florida and Neighboring Land Areas 16. 180 pp.