1980

• Flowers, R.W. 1980. Atopophlebia fortunensis, a new genus and species from Panamá (Leptophlebiidae: Ephemeroptera). The Florida Entomologist 63(1): 162–165. DOI: 10.2307/3494670 . JSTOR. PDF.
• Flowers, R.W. 1980. Two new genera of Nearctic Heptageniidae (Ephemeroptera). The Florida Entomologist 63(3): 296–307. DOI: 10.2307/3494626 . JSTOR. PDF.

1982

• Flowers, R.W. 1982. Review of the genus Macdunnoa (Ephemoptera: Heptageniidae) with description of a new species from Florida. The Great Lakes Entomologist 15(1): 25–30. PDF.

1985

• Flowers, R.W. 1985. Guajirolus, a new genus of Neotropical Baetidae (Ephemeroptera). Studies on Neotropical Fauna and Environment 20(1): 27–31. DOI: 10.1080/01650528509360667 .
• Evans, J.L., Botts, W.F., Flowers, R.W. 1985. A new Heptagenia (Ephemeroptera: Heptageniidae) from the Susquehanna and Delaware rivers from Eastern North America. Annals of the Entomological Society of America 78(1): 5–7. DOI: 10.1093/aesa/78.1.5 .

1987

• Flowers, R.W. 1987. The adult stage of three central american Baetodes (Ephemeroptera: Baetidae) with notes on the genus. Aquatic Insects 9(1): 1–10. DOI: 10.1080/01650428709361261 .
• Flowers, R.W. 1987. New species and life stages of Atopophlebia (Ephemeroptera: Leptophlebiidae: Atalophlebiinae). Aquatic Insects 9(4): 203–209. DOI: 10.1080/01650428709361297 .

1989

• Dominguez, E. & Flowers, R.W. 1989. A revision of Hermanella and related genera (Ephemeroptera: Leptophlebiidae; Atalophlebiinae) from subtropical South America. Annals of the Entomological Society of America 82(5): 555–573. DOI: 10.1093/aesa/82.5.555 .

1990

• Flowers, R.W. 1990. New records of Chrysomelidae (Coleoptera) from Florida. The Coleopterists Bulletin 44(1): 65–66. JSTOR.

1992

• Flowers, R.W. & Dominguez, E. 1992. New genus of Leptophlebiidae (Ephemeroptera) from Central and South America. Annals of the Entomological Society of America 85(6): 655–661. DOI: 10.1093/aesa/85.6.655 .

1994

• Askevold, I.S. & Flowers, R.W. 1994. Glyptosceloides dentatus, a genus and species of Eumolpinae new to Chile (Coleoptera: Chrysomelidae). Revista Chilena de Entomología 21: 69–76. PDF. BHL. Reference page. 

• Flowers, R.W., Furth, D.G. & Thomas, M.C. 1994. Notes on the Distribution and Biology of Some Florida Leaf Beetles (Coleoptera: Chrysomelidae). The Coleopterists Bulletin 48(1): 79–89. JSTOR . Reference page. 

1995

• Flowers, R.W. 1995. Hermesia Lefèvre, a resurrected genus of neotropical Eumolpinae (Coleoptera: Chrysomelidae). Proceedings of the Entomological Society of Washington 97(1): 35–45. BHL. Reference page. 

• Flowers, R.W. 1995. Some Corrections to the Generic Records of Central American Eumolpinae (Chrysomelidae: Coleoptera). The Florida Entomologist 78(3): 553–557. DOI: 10.2307/3495545 , JSTOR . PDF. Reference page. 

1996

• Flowers, R.W. 1996. La subfamilia Eumolpinae (Coleoptera: Chrysomelidae) en América Central. Revista de Biología Tropical Special Publication 2: 1–59. Abstract. Online version. Reference page. 

1997

• Flowers, R.W. 1997. Revision of the genus Cayetunya Bechyné (Coleoptera: Chrysomelidae: Eumolpinae), with descriptions of three new species. The Coleopterists Bulletin 51(4): 384–399. JSTOR.

1998

• Flowers, R.W. 1998. An incorrect original spelling in the genus Cayetunya Bechyné (Coleoptera: Chrysomelidae: Eumolpinae). The Coleopterists Bulletin 52(1): 89. JSTOR.

2003

• Flowers, R.W. 2003. Notes on the genus Lycaste Gistl, and resurrection of Callicolaspis Bechyné (Coleoptera: Chrysomelidae: Eumolpinae). Proceedings of the Entomological Society of Washington 105(4): 925–932. BHL
• Flowers, R.W. 2003. A new genus and a new Costa Rican species of Endocephalites (Chrysomelidae: Eumolpinae: Eumolpini). Zootaxa 221: 1–11. Abstract & excerpt PDF. DOI: 10.11646/zootaxa.221.1.1 .

2004

• Flowers, R.W. 2004. Cryocolaspis, a New Genus and Species of Eumolpinae (Chrysomelidae) from Costa Rica. The Coleopterists Bulletin 58(1): 97–101. DOI: 10.1649/607 JSTOR
• Flowers, R.W. 2004. The genera of Chrysomelinae (Coleoptera: Chrysomelidae) in Costa Rica. Revista de biologia tropical 52(1): 77–83. DOI: 10.15517/rbt.v52i1.14754 .

• Flowers, R.W. 2004. New flightless Eumolpinae of the genera Apterodina Bechyné and Brachypterodina n. gen. (Coleoptera: Chrysomelidae) from the Neotropics. Zootaxa 549: 1–18. Abstract & excerpt PDF DOI: 10.11646/zootaxa.549.1.1 . Reference page. 
• Flowers, R.W. 2004. A review of the Neotropical genus Prionodera Chevrolat (Coleoptera, Chrysomelidae, Eumolpinae) with description of a new genus. Zootaxa 631: 1–54. Abstract & excerpt DOI: 10.11646/zootaxa.631.1.1 PDF (1–10) PDF (11–46) PDF (47–54)

2005

• Savage, H.M., Flowers, R.W., Porras V., W. 2005. Rediscovery of Choroterpes atramentum in Costa Rica, type species of Tikuna new genus (Ephemeroptera: Leptophlebiidae: Atalophlebiinae), and its role in the "Great American Inter-change". Zootaxa 932: 1–14. Abstract & excerpt. DOI: 10.11646/zootaxa.932.1.1 .
• Ávila A., S. & Flowers, R.W. 2005. New species and records of Ulmeritoides (Ephemeroptera: Leptophlebiidae) from Costa Rica. Zootaxa 1010: 1–14. Abstract & excerpt PDF. DOI: 10.11646/zootaxa.1010.1.1 .
• Peters, J.G., Flowers, R.W., Hubbard, M.D., Dominguez, E. & Savage, H.M. 2005. New records and combinations for Neotropical Leptophlebiidae (Ephemeroptera). Zootaxa 1054: 51–60. Abstract & excerpt PDF. DOI: 10.11646/zootaxa.1054.1.6 .

2006

• Ávila A., S. & Flowers, R.W. 2006. Two new species of Choroterpes Eaton (Ephemeroptera: Leptophlebiidae) from Costa Rica. Zootaxa 1245: 59–68. Abstract & excerpt PDF. DOI: 10.11646/zootaxa.1245.1.3 [broken].

2009

• Flowers, R.W. 2009. A new species of Thraulodes (Ephemeroptera: Leptophlebiidae, Atalophlebiinae) from a highly altered river in western Ecuador. Zootaxa 2052: 55–61. Abstract & excerpt PDF. DOI: 10.11646/zootaxa.2052.1.4 .

• Flowers, R.W. 2009. A second species of Apterodina (Chrysomelidae: Eumolpinae) from Ecuador. Zootaxa 2131: 65–68. Abstract & excerpt PDF. DOI: 10.11646/zootaxa.2131.1.3 . Reference page. 
• Flowers, R.W. 2009. A new genus and species of Eumolpinae (Coleoptera: Chrysomelidae) from the western dry forest of Ecuador. Zootaxa 2132: 65–68. Abstract & excerpt PDF. DOI: 10.11646/zootaxa.2132.1.4 .

2010

• Flowers, R.W., Shepard, W.D. & Mera, R.T. 2010. A new species of Lepicerus (Coleoptera: Lepiceridae) from Ecuador. Zootaxa 2639: 35–39. Preview PDF. DOI: 10.11646/zootaxa.2639.1.3 . Reference page. 

2011

• Mariano, R., Flowers, R.W. & Froehlich, C.G. 2011. Four new species, a new synonymy and new record for Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae: Atalophlebiinae). Annales de Limnologie - International Journal of Limnology 47(4): 387–393. DOI: 10.1051/limn/2011044 .

2012

• Flowers, R.W. 2012. Chalcosicya maya n. sp, a new Mexican species (Coleoptera: Chrysomelidae: Eumolpinae) and its implications for morphology and biogeography. Insecta Mundi (209): 1–9. Full article (PDF).

• Flowers, R.W. 2012. A new species of Atopophlebia Flowers (Ephemeroptera: Leptophlebiidae) from western Ecuador with ecological and biogeographic notes on the genus. Zootaxa 3478(1): 11–18. DOI: 10.11646/zootaxa.3478.1.3 . Reference page. 

2014

• Stilwell, A.R., Smith, S.M., Cognato, A.I., Martinez, M. & Flowers, R.W. 2014. Coptoborus ochromactonus, n. sp. (Coleoptera: Curculionidae: Scolytinae), an Emerging Pest of Cultivated Balsa (Malvales: Malvaceae) in Ecuador. Journal of Economic Entomology 107(2): 675–683. DOI: 10.1603/EC13559 .

2015

• Chaboo, C.S. & Flowers, R.W. 2015. Beetles (Coleoptera) of Peru: A Survey of the Families. Megalopodidae Latreille, 1802. Journal of the Kansas Entomological Society 88(3): 354–355. DOI: 10.2317/kent-88-03-354-355.1 . JSTOR.
• Chaboo, C.S. & Flowers, R.W. 2015. Beetles (Coleoptera) of Peru: A Survey of the Families. Chrysomelidae: Eumolpinae Hope, 1840. Journal of the Kansas Entomological Society 88(3): 375–379. DOI: 10.2317/kent-88-03-375-379.1 . JSTOR.
• Chaboo, C.S. & Flowers, R.W. 2015. Beetles (Coleoptera) of Peru: A Survey of the Families. Chrysomelidae: Chrysomelinae. Journal of the Kansas Entomological Society 88(3): 380–383. DOI: 10.2317/kent-88-03-380-383.1 . JSTOR.

2018

• Flowers, R.W. 2018. A review of the genus Beltia Jacoby (Chrysomelidae: Eumolpinae: Eumolpini), with descriptions of fourteen new species from Costa Rica, Panama, and northwestern South America. Insecta Mundi 672: 1–43. Full article (PDF). Reference page.