| The aquatic beetle subfamily Larainae (Coleoptera: Elmidae) in Mexico, Central America, and the West Indies PJ Spangler, S Santiago-Fragoso | 81 | 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 | 61 | 1982 |
| 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 | 59 | 1955 |
| A revision of the Neotropical aquatic beetle genera Disersus, Pseudodisersus, and Potamophilops (Coleoptera: Elmidae) PJ Spangler, S Santiago | 57 | 1987 |
| Four new stygobiontic beetles (Coleoptera: Dytiscidae; Noteridae; Elmidae) PJ Spangler Insecta Mundi, 241-259, 1996 | 53 | 1996 |
| 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 | 50 | 1981 |
| A Revision of the Neotropical Riffle Beetle Genus Stenhelmoides (Coleoptera: Elmidae) PJ Spangler, PD Perkins | 49 | 1989 |
| 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 | 46 | 2001 |
| 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 | 45 | 1966 |
| A revision of the Neotropical aquatic beetle genus Stegoelmis (Coleoptera: Elmidae) PJ Spangler | 44 | 1990 |
| 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 | 43 | 1998 |
| 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 | 25 | 2011 |
| Insecta: Coleoptera PJ Spangler Stygofauna mundi, 622-631, 1986 | 25 | 1986 |
| A review of the genus Stridulivelia Hungerford and two new species (Heteroptera: Veliidae) from South America JT Polhemus, PJ Spangler Entomological Society of Washington (USA) 97 (1), 1995 | 24 | 1995 |
| Descriptions of the larvae of some predacious water beetles (Coleoptera: Dytiscidae) PJ Spangler, RD Gordon Proceedings of the Biological Society of Washington, 1973 | 24 | 1973 |
