Nakane T., 1985: A revisional study on Japanese species of the genus Haliplus Latreille (Coleoptera, Haliplidae). 8 pp. (in Japanesse). Kita-Kyushu no Konchu 32(2): 61-68.
50
2
16470
Nakanishi H., 2001: Larvae of the genus Hyphydrus of Japan (Coleoptera, Dytiscidae, Hydroporinae). 11 pp.
95
4
JJS 07059
Nakanishi H., 2001: Larvae of the genus Hyphydrus of Japan (Coleoptera, Dytiscidae, Hydroporinae). 11 pp. Japanese Journal of systematic Entomology (N.S.) 7(1): 59-69.
50
2
FGE 33081
Nardi G., 2001: Haliplus (Liaphlus) maculatus, a species new to Turkey (Coleoptera, Haliplidae). 3 pp. Fragmenta entomologica 33(1): 81-83.
50
2
CBU 43019
Nelson H. G., 1989: Postelichus, a new genus of nearctic Dryopidae (Coleoptera: Dryopidae). 6 pp. The Coleopterists Bulletin 43(1): 19-24.
50
2
CBU 44233
Nelson H. G., 1990: Pomatinus, a name reclaimed for Helichus substriatus (Ph. Müller) (Coleoptera: Dryopidae). 2 pp. The Coleopterists Bulletin 44(2): 233-234.
50
2
AQA 377
Nieukerken E. J., Nilsson A. N., 1985: The third-instar larva of the water beetle Coelambus nigrolineatus (Steven) (Coleoptera: Dytiscidae). 4 pp.
50
2
CEB 08025
Nikolajev G. V., Prokin A. A., 2012: On the transfer of the genus Mesydra Ponomarenko, 1977 from Hydrophilidae into Scarabaeidae (Coleoptera). 4 pp. Caucasian Entomological Bulletin 8(1): 25-28.
50
2
AQA 383
Nilsson A. N., 1983: Ilybius vittiger (Gyllenhal) n. comb. (Coleoptera: Dytiscidae), with description of its larval instars. 8 pp. Entomologica scandinavica.
50
2
AQA 387
Nilsson A. N., 1986: Geographic variation in Graphoderus zonatus (Coleoptera: Dytiscidae) in Sweden. 7 pp.
50
2
EBA 11391
Nilsson A. N., 1986: Life cycles and habitats of the Northern European Agabini (Coleoptera: Dytiscidae). 27 pp. Entomologica Basiliensia 11: 391-417.
195
8
AQA 878
Nilsson A. N., 1987: Larval morphology of Fennoscandian Oreodytes Seidlitz (Coleoptera: dytiscidae), with notes on hydroporine leg chaetotaxy and taxonomy. 10 pp. (in English). Ent. Tidskr. 108: 99-108.
50
2
SYS 14099
Nilsson A. N., 1989: Larvae of northern European Hydroporus (Coleoptera: Dytiscidae). 17 pp. Systematic Entomology 14(1): 99-115.
95
4
SYS 17155
Nilsson A. N., 1992: A revision of Afrotropical Agabus Leach (Coleoptera, Dytiscidae), and the evolution of tropicoalpine super specialists. 25 pp. Systematic Entomology 17(2): 155-179.
250
10
KRU 62043
Nilsson A. N., 1992: Another synonym of Agabus faldermanni Zaitzev, with a discussion of the guttatus-, nebulosus- and paludosus-groups (Coleoptera: Dytiscidae). 3 pp. Koleopterologische Rundschau 62: 43-45.
50
2
AQA 871
Nilsson A. N., 1993: Five Hydropororus species new to Japan and the Kuril Islands, with additional records of other species (Coleoptera: Dytiscidae). 9 pp. (in English). Trans. Shikoky Ent. Soc. 20(2): 89-95.
50
2
AQA 880
Nilsson A. N., 1994: A revision of the Palearctic Ilybius crassus-complex (Coleoptera, Dytiscidae). 7 pp. (in English). Ent. Tidskr. 115(1/2): 55-61.
50
2
KRU 64045
Nilsson A. N., 1994: Two new species of Agabus Leach from East Russia and North China, with notes on other species of the Agabus affinis species group (Dytiscidae). 6 pp. Koleopterologische Rundschau 64: 45-50.
50
2
KRU 65023
Nilsson A. N., 1995: A new Hydroporus species from Kamchatka previously standing as H. brevis F. Sahlberg (Dytiscidae). 4 pp. Koleopterologische Rundschau 65: 23-26.
50
2
EBA 19621
Nilsson A. N., 1996: A redefinition and revision of the Agabus optatus-group (Coleoptera: Dytiscidae); an example of pacific intercontinental disjunction. 31 pp. Entomologica Basiliensia 19: 621-651.
295
12
13928
Nilsson A. N., Hilsehoff W. L., 1991: Review of first-instar larvae of Colymbetini (Coleoptera: Dytiscidae), with a key to genera and phylogenetic analysis. 10 pp.
95
4
JJS 01217
Nilsson A. N., Kholin S. K., Angus R. B., 1995: Faunistics and species richness of water beetles of the genus Helophorus (Coleoptera, Helophoridae) of the Far East of Russia and Japan. 5 pp. Japanese Journal of systematic Entomology (N.S.) 1(2): 217-221.
50
2
EBA 13059
Nilsson A. N., Persson S., 1989: The distribution of predaceous diving beetles (Coleoptera: Noteridae, Dytiscidae) in Sweden. 88 pp. Entomologica Basiliensia 13: 59-146.
590
24
14158
Oberle E., 1912: Das Blutgefässsystem von Dytiscus marginalis L. 39 pp.
250
10
AQA 402
Ochs G., 1929: On some new and interesting sp. of water beetles of the family Gyrinidae in the United States National Museum. 6 pp.
50
2
AQA 406
Ochs G., 1929: Zu dem Thema Orectochilus involvens Fald. und Orectochilus zeravschanicus Glas. 3 pp.
50
2
AQA 414
Ochs G., 1937: Nachtrag zur Gyriniden-Fauna Javas und der benachbarten Sunda-Inseln nebst Beschreibung einiger Verwandten des Orectochilus spiniger Rég. aus Hinter-Indien und Ceylon. 10 pp.
50
2
EAF 05074
Ochs G., 1954: Über die von Dr. J. Bechynì in Französisch Guinea gesammelten Gyriniden (Col.). 7 pp. Entomologische Arbeiten aus dem Museum G. Frey 5: 74-80.
50
2
EAF 18412
Ochs G., 1967: Neue Gyriniden aus dem Museum G. Frey in Tutzing (Gyrinidae, Col.). 7 pp. Entomologische Arbeiten aus dem Museum G. Frey 18: 412-418.
50
2
ESC 18519
Ohba S., Ushio M., 2015: Effect of water depth on predation frequency by diving beetles on mosquito larvae prey. 4 pp. Entomological Science 18(4): 519-522.
50
2
ESC 14364
Ohba S.-Y., 2011: Field observation of predation on a turtle by a giant water bug. 2 pp. Entomological Science 14(3): 364-365.
50
2
ESC 15115
Ohno S., Gotoh T., Miyagi A., Ganaha-Kikumara T., Kurima M., Kijima K., Ooishi T., 2012: Geographic distribution of phytoseiid mite species (Acari: Phytoseiidae) on crops in Okinawa, a subtropical area of Japan. 6 pp. Entomological Science 15(1): 115-120.
50
2
BSI 101123
Olmi M., 1969: Notizie ecologiche su Esolus angustatus (Ph. Müller) con considerazioni sinonimiche (Coleoptera Dryopoidea, Elminthidae). 10 pp. Bolletino della Societa Entomologica Italiana 99-101(7-8): 123-132.
50
2
AQA 723
Olmi M., 1975: Descrizione di due nuove specie Italiane appartenenti al genere Esolus Mulsant et Rey (Coleoptera Elminthidae). 6 pp.
50
2
AQA 800
Olmi M., 1975: Una specie primitiva, Dryops goidanichi sp. n.: nuovo endemismo afgano (Coleoptera, Dryopoidea). 6 pp.
50
2
AQA 434
Olmi M., 1976: Dryops kaszabi sp. n. from Hungary (Coleoptera, Dryopidae). 3 pp.
50
2
FSA 02122
Olmi M., 1980: Coleoptera: fam. Dryopidae. 2 pp. Fauna of Saudi Arabia 2: 122-123.
50
2
AEP 40337
Olmi M., 1981: Results of the czechoslovak-iranian entomological Expeditions to Iran. Together with results of collections made in Anatolia 1947 and 1970. Coleoptera, Dryopoidea: Dryopidae and Elminthidae. 3 pp. [AQA 435] Acta entomologica Musei nationalis Pragae 40: 337-339.
50
2
AQA 436
Omer-Cooper J., 1955: Canthyporus lateralis (Boheman) and further new Dytiscidae (Coleoptera) from the cape province of South Africa. 8 pp.
50
2
FFA 42071
Pakulnicka J., Bartnik W., 1999: Changes in the fauna of aquatic beetles (Coleoptera aquatica) in Lake Luterskie (Olsztyn Lake District) in 1981-1993. 23 pp.
195
8
CBU 53160
Paquette D., Alarie Y., 1999: Dytiscid fauna in cattail ponds of northeastern Ontario, Canada (Coleoptera: Dytiscidae). 7 pp. The Coleopterists Bulletin 53(2): 160-166.
50
2
CBU 53042
Peddle S. M., Larson D. J., 1999: Cuticular evidence of traumatic experiences of water beetles (Coleoptera: Dytiscidae). 10 pp. The Coleopterists Bulletin 53(1): 42-51.
50
2
BSI 098118
Pederzani F., 1968: Una nuova aberrazione di Hydaticus seminiger De Geer (Coleoptera Dytiscidae). 2 pp. Bolletino della Societa Entomologica Italiana 98(7-8): 118-119.
50
2
BSI 108157
Pederzani F., 1976: Sui Coleotteri Idroadefagi e Palpicorni delle pinete di Ravenna e degli ambienti umidi ciorcostanti. 18 pp. Bolletino della Societa Entomologica Italiana 108(8-10): 157-174.
150
6
BSI 114139
Pederzani F., 1982: Notes on some Dytiscidae of the British Museum (Natural History) with descriptions of three new species (Coleoptera). 5 pp. Bolletino della Societa Entomologica Italiana 114(8-10): 139-143.
50
2
AQA 442
Pederzani F., 1983: Laccophilus concettae n. sp. from the Centrafrican Republic (Coleoptera Dytiscidae). 3 pp.
50
2
AQA 443
Pederzani F., 1989: Hydroporus (Sternoporus) jurjurensis Régimbart a Creta (Coleoptera Dytiscidae). 2 pp.
50
2
SYS 16253
Peiyu Y., Strok N. E., 1991: New evidence on the phylogeny and biogegraphy of the Amphizoidae: discovery of a new species from China. 4 pp. Systematic Entomology 16(2): 253-256.
50
2
QEN 16003
Perkins P. D., 1980: Aquatic beetles of the family Hydraenidae in the western Hemisphere: classification, biogeography and inferred phylogeny (Insecta: Coleoptera). 552 pp. Quaestiones Entomologicae 16: 3-554.
1990
80
AQA 447
Petri K., 1903: Agabus regalis, eine neue Art aus der Verwandtschaft des bipustulatus L. und Solieri Aubé. 2 pp. Wien. entomol. Ztg. 22(2): 49-50.