Material collected during a biodiversity expedition in some protected areas of Ecuador, located in the provinces of Coto-paxi, Pichincha and Napo, resulted in ten new species and three first records. The new taxa are: Cylloepus bartolozzii sp.nov., Cylloepus cesari sp. nov., Cylloepus fabianorum sp. nov., Cylloepus francescae sp. nov., Cylloepus mazzai sp. nov.,Cylloepus terzanii sp. nov., Cylloepus whitmanae sp. nov., Macrelmis elicioi sp. nov., Pharceonus cianferonii sp. nov.and Stenhelmoides onorei sp. nov. The three records are: Cylloepus vicinus Hinton, 1940, Hexacylloepus nirgua Hinton,1973, Phanocerus congener Grouvelle, 1898. Habitus photographs and illustrations of aedeagi for all the new taxa andother useful characters for some of them, a key to the graniger species-group of Macrelmis, and a checklist of the Ecuadorian species with their general and local distributions are hereby included.

The distribution of Dryopidae and Heteroceridae (Coleoptera: Byrrhoidea) of Iran is summarized. A total of ten species of Dryopidae in three genera (Dryops Olivier, Parahelichus Löbl & Smetana, and Praehelichus Löbl & Smetana), and 18 species of Heteroceridae in two genera (Augyles Schiödte and Heterocerus Fabricius) are listed. Augyles hispidulus (Kiesenwetter, 1843) (Heteroceridae) is recorded from Iran for the first time.

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Two Elminae, Macrelmis germaini (Grouvelle, 1896) and Cylloepus reitteri Grouvelle, 1889 from Grouvelle's Collection in the Museum National d'Histoire Naturelle, Paris are reviewed, and their lectotypes designated. Habitus photographs and illustrations of aedeagi for both species are also included.

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