Habitus of representative species of the three most diverse aquatic beetle families from Volcán Tacaná, Chiapas, Mexico A Elmoparnus pandus Spangler & Perkins, 1977 (Dryopidae) B Helichus suturalis LeConte, 1852 (Dryopidae) C Copelatus distinctus Aubé, 1838 (Dytiscidae) D Platambus americanus (Aubé, 1838) (Dytiscidae) E Cylloepus atys Hinton, 1946 (Elmidae) F Hexacylloepus metapa Silva-Polizei, Barclay & Bispo, 2020 (Elmidae) G Macrelmis leonilae Spangler & Santiago-Fragoso, 1986 (Elmidae) H Microcylloepus Troilus Hinton, 1940 (Elmidae) I Onychelmis longicollis (Sharp, 1882) (Elmidae).

 
 
  Part of: Luna-Luna AM, Martins CC, López-Pérez A, Ramírez-Ponce A, Contreras-Ramos A (2022) Aquatic beetle diversity from Volcán Tacaná, Mexico: altitudinal distribution pattern and biogeographical affinity of the fauna. In: Pauls SU, Thomson R, Rázuri-Gonzales E (Eds) Special Issue in Honor of Ralph W. Holzenthal for a Lifelong Contribution to Trichoptera Systematics. ZooKeys 1111: 301-338. https://doi.org/10.3897/zookeys.1111.68665