- Gastrancistrus abnormicolor
- Gastrancistrus acontes
- Gastrancistrus acutus
- Gastrancistrus aeneicornis
- Gastrancistrus aequus, Pireninae
- Gastrancistrus affinis, Pireninae
- Gastrancistrus agarwali, Pireninae
- Gastrancistrus albicornis
- Gastrancistrus albipes
- Gastrancistrus alectus, Pireninae
- Gastrancistrus amabilis
- Gastrancistrus amaboeus, Pireninae
- Gastrancistrus americana
- Gastrancistrus americensis
- Gastrancistrus amnisos, Pteromalinae
- Gastrancistrus annulipes
- Gastrancistrus aphidis
- Gastrancistrus arboris
- Gastrancistrus atropurpureus, Pireninae
- Gastrancistrus aureipes
- Gastrancistrus biguttata
- Gastrancistrus biguttatipennis
- Gastrancistrus bremiolovorus, Pireninae
- Gastrancistrus cephalon
- Gastrancistrus cherryi, Pireninae
- Gastrancistrus citripes
- Gastrancistrus clavellatus, Pireninae
- Gastrancistrus clavicornis
- Gastrancistrus claviger, Pireninae
- Gastrancistrus coactus, Pireninae
- Gastrancistrus compressus
- Gastrancistrus coniferae, Pireninae
- Gastrancistrus consors, Pireninae
- Gastrancistrus crassus, Pireninae
- Gastrancistrus cupreus, Pireninae
- Gastrancistrus dehradunensis, Pireninae
- Gastrancistrus discoloripes
- Gastrancistrus dispar, Pireninae
| - Gastrancistrus ephedrae, Pireninae
- Gastrancistrus erythropus, Pireninae
- Gastrancistrus fidenas
- Gastrancistrus flora
- Gastrancistrus floriola
- Gastrancistrus fulginas, Pireninae
- Gastrancistrus fulvicoxis, Pireninae
- Gastrancistrus fulviventris, Pireninae
- Gastrancistrus fumipennis, Pireninae
- Gastrancistrus fuscicornis, Pireninae
- Gastrancistrus galii, Pireninae
- Gastrancistrus gargantua
- Gastrancistrus geganius
- Gastrancistrus giraulti
- Gastrancistrus hamillus
- Gastrancistrus hemigaster, Pireninae
- Gastrancistrus herbicola, Pireninae
- Gastrancistrus hillmeadia
- Gastrancistrus hirtulus, Pireninae
- Gastrancistrus indivisus, Pireninae
- Gastrancistrus karatavicus, Pireninae
- Gastrancistrus keatsi
- Gastrancistrus laticeps, Pireninae
- Gastrancistrus laticornis, Pireninae
- Gastrancistrus lativentris, Pireninae
- Gastrancistrus longicornis, Pireninae
- Gastrancistrus longigena, Pireninae
- Gastrancistrus longiventris, Pireninae
- Gastrancistrus marilandica
- Gastrancistrus marylandensis
- Gastrancistrus menaetes
- Gastrancistrus metallicus
- Gastrancistrus muneswari
- Gastrancistrus nigriclavus
- Gastrancistrus nigricyaneus
- Gastrancistrus oblongus
- Gastrancistrus obscurellus, Pireninae
- Gastrancistrus oporinus, Pireninae
| - Gastrancistrus ornatus, Pireninae
- Gastrancistrus oxytropicola, Pireninae
- Gastrancistrus pallicornis
- Gastrancistrus polles, Pireninae
- Gastrancistrus poloni
- Gastrancistrus praecox
- Gastrancistrus psapho
- Gastrancistrus punctatiscutum
- Gastrancistrus quadridentatus
- Gastrancistrus refulgens, Pireninae
- Gastrancistrus robertsoni, Pireninae
- Gastrancistrus robiniaecola
- Gastrancistrus rumicis, Pireninae
- Gastrancistrus salicis
- Gastrancistrus sambus
- Gastrancistrus silenes, Pireninae
- Gastrancistrus speculifer, Pireninae
- Gastrancistrus subpunctatus, Pireninae
- Gastrancistrus sugitama, Pireninae
- Gastrancistrus sugonjaevi, Pireninae
- Gastrancistrus tenebricosus, Pireninae
- Gastrancistrus tenuicornis, Pireninae
- Gastrancistrus terminalis, Pireninae
- Gastrancistrus transiliensis, Pireninae
- Gastrancistrus triandrae, Pireninae
- Gastrancistrus unfasciatus
- Gastrancistrus ungutta
- Gastrancistrus unicolor
- Gastrancistrus unimacula
- Gastrancistrus vagans
- Gastrancistrus venustus, Pireninae
- Gastrancistrus vernalis, Pireninae
- Gastrancistrus viridis
- Gastrancistrus vonones
- Gastrancistrus vulgaris, Pireninae
- Gastrancistrus xanthogaster, Pireninae
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