The Chimarra lehibemavo species-group, new and endemic to Madagascar (Trichoptera, Philopotamidae)

François-Marie Gibon


The Chimarra lehibemavo group is described to include thirteen new species: Chimarra lehibemavo sp. nov., C. cebegepi sp. nov., C. fenoevo sp. nov., C. forcellinii sp. nov., C. fotobohitra sp. nov., C. gattolliati sp. nov., C. gensonae sp. nov., C. jejyorum sp. nov., C. hamatra sp. nov., C. makiorum sp. nov., C. moramanga sp. nov., C. saha sp. nov. and C. tamara sp. nov. The adults are easily recognizable by their large size, yellow colour and the structure of the male genitalia. The membranous tergum IX and the absence of the mesal lobe of tergum X are observed in other lineages, but the strong asymmetrical deformation of the phallotheca is apomorphic. The group is monophyletic with unknown affinities, but a preliminary phylogenetic placement is suggested following genetic analysis of two specimens. With one exception, the species have restricted geographical distributions in Madagascar and inhabit rivers in eastern pristine rainforests.


caddisflies; Chimarrinae; new species; biogeography; systematics

Full Text:




Blahnik R.J. 1998. A revision of the Neotropical species of the genus Chimarra, subgenus Chimarra (Trichoptera: Philopotamidae). Memoirs of the American Entomological Institute 59: 1–318.

Blahnik R.J., Holzenthal R.W. & Huisman J. 2009. Chimarra of Sabah and Sarawak, northern Borneo (Trichoptera: Philopotamidae). Tijdschrift voor Entomologie 152: 109 –166.

Blahnik R.J., Arefina-Armitage T.I. & Armitage B.J. 2012. The genus Chimarra Stephens (Trichoptera: Philopotamidae) in Vietnam. Insecta Mundi 0229: 1–25.

Cruaud A., Jabbour-Zahab R., Genson G., Cruaud C., Couloux A., Kjellberg F., van Noort S. & Rasplus J.Y. 2010. Laying the foundations for a new classification of Agaonidae (Hymenoptera: Chalcidoidea), a multilocus phylogenetic approach. Cladistics 26 (4): 359–387.

Elouard J.-M. & Gibon F.-M. 2001. Biodiversité et Biotypologie des eaux continentales de Madagascar. IRD, Montpellier.

Gibon F.-M. 2000. Biologie de la conservation et singularité des cours d’eau. L’exemple des Philopotamidae malgaches (Insecta, Trichoptera). In: Lourenço W.R. & Goodman S.M. (eds) Diversité et Endémisme à Madagascar: 319–330. Société de Biogéographie, Paris.

Gibon F.-M. 2013. Une sous-famille caractéristique des forêts humides primaires malgaches: les Rossodinae (Trichoptera, Philopotamidae). Zoosystema 35 (2): 151–174.

Gibon F.-M. 2014. Philopotaminae of Madagascar (Trichoptera: Philopotamidae). Annales de la Société Entomologique de France (N.S) 50 (3–4): 382–398.

Gibon F.-M. 2015. The Chimarra minima-group in West Africa and Madagascar (Trichoptera, Philopotamidae). Zoosystema 37 (2): 333–350.

Gibon F.-M. & Elouard J.-M. 1996. Etude préliminaire de la distribution des insectes lotiques à Madagascar (exemples des Trichoptères Philopotamidae et Diptères Simuliidae). In: Lourenço W.R. (ed.) Biogéographie de Madagascar: 507–516. ORSTOM, Paris. Available from [accessed 15 Mar. 2017].

Gibon F.-M., Andriambelo P.Z. & Randriamasimanana D. 1999. A study of the diversity and richness of the Malagasy Trichoptera. In: Chantaramongkol P. & Malicky H. (eds) Proceedings of the 9th International Symposium on Trichoptera: 123–124. University of Chiang-Maï, Chiang-Maï. Available from [accessed 15 Mar. 2017].

Goodman S.M. (ed.) 1996. A Floral and Faunal Inventory of the Eastern Slopes of the Réserve Naturelle Intégrale d’Andringitra, Madagascar: with reference to elevational variation. Fieldiana: Zoology (new series) 85: 1–319.

Goodman S.M. (ed.) 1999. A floral and faunal inventory of the réserve naturelle intégrale d’Andohahela, Madagascar: with reference to elevational variation. Fieldiana: Zoology (new series) 94: 1–297.

Goodman S.M. (ed.) 2000. A floral and faunal inventory of the parc national de Marojejy, Madagascar: with reference to elevational variation. Fieldiana: Zoology (new series) 97: 1–286.

Kjer K.M., Zhou X., Frandsen P.B., Thomas J.A. & Blahnik R.J. 2014. Moving toward species-level phylogeny using ribosomal DNA and CO1 barcodes: an exemple from the diverse caddisfly genus Chimarra (Trichoptera: Philopotamidae). Arthropods Systematics and Phylogeny 72 (3): 345–354.

Monaghan M.T., Gattolliat J.-L., Sartori M., Elouard J.-M., James H., Derleth P., Glaizot O., de Moor F., Vogler A.P. 2005. Trans-oceanic and endemic origins of the small minnow mayflies (Ephemeroptera, Baetidae) of Madagascar. Proceedings of the Royal Society B Biological Sciences 272 (1574): 1829–1836.

Morse J.C. 2015. Trichoptera World Checklist. Available from [accessed 17 Mar. 2017].

Randriamasimanana D. & Gibon F.-M. 2001. Etude systématique, habitat et répartition géographique des Setodes (Trichoptera : Leptoceridae) de Madagascar. Annales de Limnologie – International Journal of Limnology 37 (2): 125–141.

Ratnasingham S. & Hebert P.D.N. 2007. Bold: The Barcoding of Life Data System ( Molecular Ecology Notes 7 (3): 355–364.

Resh V.H. & Unzicker J.D. 1975. Water quality monitoring and aquatic organisms: the importance of species identification. Journal of the Water Pollution Control Federation 47: 9–19.

Ross H.H. 1956. Evolution and classification of the mountain caddisflies. The University of Illinois Press, Urbana.

Ross H.H. 1963. Stream communities and terrestrial biome. Archiv für Hydrobiologie 59: 235–242.

Wilmé L., Goodman S.M. & Ganzhorn J.U. 2006. Biogeographic evolution of Madagascar’s microendemic biota. Science 312: 1063–1065.

Wahlberg E. & Johanson K.A. 2014. The age, ancestral distribution and radiation of Chimarra (Trichoptera: Philopotamidae) using molecular methods. Molecular Phylogenetics and Evolution 79: 433–442.


  • There are currently no refbacks.

License URL: