| The aquatic beetle subfamily Larainae (Coleoptera: Elmidae) in Mexico, Central America, and the West Indies PJ Spangler, S Santiago-Fragoso | 84 | 1992 |
| A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga) PJ Spangler, WE Steiner Jr Systematic Entomology 30 (3), 339-357, 2005 | 78 | 2005 |
| Coleoptera PJ Spangler Aquatic Biota of Mexico, Central America and West Indies. San Diego …, 1982 | 59 | 1982 |
| A revision of the Neotropical aquatic beetle genera Disersus, Pseudodisersus, and Potamophilops (Coleoptera: Elmidae) PJ Spangler, S Santiago | 58 | 1987 |
| Subaquatic light traps for insects and other animal organisms HB Hungerford, PJ Spangler, NA Walker Transactions of the Kansas Academy of Science (1903-) 58 (3), 387-407, 1955 | 58 | 1955 |
| Four new stygobiontic beetles (Coleoptera: Dytiscidae; Noteridae; Elmidae) PJ Spangler Insecta Mundi, 241-259, 1996 | 52 | 1996 |
| A revision of the Neotropical aquatic beetle genus Stenhelmoides (Coleoptera: Elmidae) PJ Spangler, PD Perkins (No Title), 1989 | 51 | 1989 |
| Supplement to the aquatic and semiaquatic Coleoptera of Cuba collected by the biospeleological expeditions to Cuba by the Academies of Science of Cuba and Romania PJ Spangler Résultats des Expéditions Biospéologiques Cubano-Roumaine a Cuba 3, 145-171, 1981 | 49 | 1981 |
| The Catherwood Foundation Peruvian-Amazon Expedition. XIII. Aquatic Coleoptera (Dytiscidae; Noteridae; Gyrinidae; Hydrophilidae; Dascillidae; Helodidae; Psephenidae; Elmidae) PJ Spangler Monographs of the Academy of Natural Sciences of Philadelphia 14, 377-443, 1966 | 46 | 1966 |
| A checklist of the Limnichidae and the Lutrochidae (Coleoptera) of the world PJ Spangler, CL Staines, PM Spangler, SL Staines Insecta Mundi, 151-165, 2001 | 45 | 2001 |
| Study of the larvae of Hydrotrupes palpalis Sharp (Coleoptera: Adephaga, Dytiscidae) with implications for the phylogeny of the Colymbetinae Y Alarie, PJ Spangler, PD Perkins The Coleopterists' Bulletin, 313-332, 1998 | 45 | 1998 |
| A revision of the Neotropical aquatic beetle genus Stegoelmis (Coleoptera: Elmidae) PJ Spangler | 44 | 1990 |
| A new species of halophilous water-strider, Mesovelia polhemusi, from Belize and a key and checklist of New World species of the genus (Heteroptera: Mesoveliidae) PJ Spangler Proceedings of the Biological Society of Washington 103 (1), 86-94, 1990 | 38 | 1990 |
| Revision of the Haliplidae of the Neotropical Region including Mexico BJ Van Vondel, PJ Spangler Koleopterologische Rundschau 78, 69-194, 2008 | 34 | 2008 |
| A new genus and species of stygobiontic dytiscid beetle, Comaldessus stygius (Coleoptera: Dytiscidae: Bidessini) from Comal Springs, Texas PJ Spangler, CB Barr Insecta Mundi, 164, 1995 | 32 | 1995 |
| Larval morphology of four genera of the tribe Hyphydrini Sharp (Coleoptera: Dytiscidae: Hydroporinae) with an analysis of their phylogenetic relationships Y Alarie, LJ Wang, AN Nilsson, PJ Spangler Annals of the Entomological Society of America 90 (6), 709-735, 1997 | 30 | 1997 |
| Hypsilara royi gen. n. and sp. n.(Coleoptera, Elmidae, Larainae) from Southern Venezuela, with a revised key to Larainae of the Western Hemisphere CA Maier, PJ Spangler ZooKeys, 25, 2011 | 26 | 2011 |
| A review of the genus Stridulivelia Hungerford and two new species (Heteroptera: Veliidae) from South America JT Polhemus, PJ Spangler Proceedings of the Entomological Society of Washington 97 (1), 128-152, 1995 | 25 | 1995 |
| Insecta: Coleoptera PJ Spangler Stygofauna mundi, 622-631, 1986 | 25 | 1986 |
| Descriptions of the larvae of some predacious water beetles (Coleoptera: Dytiscidae) PJ Spangler, RD Gordon Proceedings of the Biological Society of Washington, 1973 | 25 | 1973 |
