@article {84, title = {Elachistelmis gen. n. (Coleoptera: Elmidae: Elminae) from Suriname, with description of two new species}, journal = {Zootaxa}, volume = {3500}, year = {2012}, pages = {61-69}, abstract = {

Elachistelmis gen. n. is described for two new species of riffle beetle, E. tetramera sp. n., and E. sipaliwiniensis sp. n. from southwestern Suriname. This new genus can be distinguished from all other elmid genera by its small size (ca. 1.0\–1.2 mm), pronotum with sublateral carinae and lacking depressions, and the presence of a narrow band of plastron setae on the lateral edge of each elytron. Elachistelmis tetramera sp. n. is among the smallest recorded Elmini and possesses many characters associated with miniaturization, such as reduced tarsal formula and feathery wings with reduced venation. A key to species, scanning electron micrographs, and illustrations of the male genitalia are provided.

}, keywords = {Aquatic insect, miniaturization, Neotropical region, riffle beetle}, author = {C.A. Maier} } @article {69, title = {Description and notes on the bionomics of a new species of Potamophilops Grouvelle, 1896 (Coleoptera: Elmidae: Larainae), from the Cerrado biome in Brazil}, journal = {Journal of Natural History}, volume = {46}, year = {2012}, pages = {717{\textendash}727}, abstract = {

Potamophilops bragaorum sp. nov. is described and illustrated based on adult specimens collected in a mountainous area in the Cerrado biome in Taquaru\ç\ú district, Tocantins state, Brazil. This is the second species described in the genus and it represents the northernmost record of Potamophilops, which is known only from Argentina and Brazil. In this article we provide a diagnosis, details on the morphology and images of the habitus and structures used to determine the species and to distinguish the gender. Field observations permitted the description of some aspects on the biology of the new species that seem to be very similar to those of other Larainae genera. Examination of gut contents revealed a diet based mostly on periphyton.

}, keywords = {aquatic insects, Cerrado biome, Neotropics, riffle beetles, taxonomy}, author = {A.S. Fernandes and N. Hamada} } @article {66, title = {Two new species of Austrolimnius Carter \& Zeck (Insecta: Coleoptera: Elmidae) from Southeastern Brazil}, journal = {Zootaxa}, volume = {3389}, year = {2012}, pages = {14-24}, abstract = {

The genus Austrolimnius Carter \& Zeck has its greatest known diversity in Oceania, but its fauna in the Americas is poorly known. In this paper, two new species\—Austrolimnius uncatus sp. nov. and A. bocainensis sp. nov.\—are described and illustrated based on adult specimens collected at Serra da Bocaina National Park, S\ão Jos\é do Barreiro Municipality, S\ão Paulo State, and Nova Friburgo Municipality, Rio de Janeiro State, Brazil. Austrolimnius uncatus sp. nov. is characterized by the long setae on the mesotarsus, the medial expansion of the hind tibiae, and the hook-like shape of the male genitalia. Austrolimnius bocainensis sp. nov. can be recognized by the absence of setae on the mid-tarsus, the cylindrical hind tibiae, and the slightly curved genitalia with few setae. A pictorial key for the Brazilian species of the genus is given. New records of Brazilian species of the genus are reported.

}, keywords = {aquatic insects, Atlantic forest, Elminae, taxonomy}, author = {G.S. Miranda and B.H.L. Sampaio and M.I.S. Passos} } @article {52, title = {First record of Ancyronyx Erichson (Coleoptera: Elmidae) from China, with description of a new species}, journal = {Zootaxa}, volume = {3255}, year = {2012}, pages = {57{\textendash}61}, abstract = {

Ancyronyx Erichson is recorded from China for the first time and a new species, Ancyronyx yunju sp. nov., is described from Jiangxi Province, China.

}, keywords = {Ancyronyx, China, Coleoptera, Elmidae, new species}, author = {D. Bian and C. Guo and L. Ji} } @article {47, title = {Ancyronyx jaechi sp.n. from Sri Lanka, the first record of the genus Ancyronyx Erichson, 1847 (Insecta: Coleoptera: Elmidae) from the Indian Subcontinent, and a world checklist of species}, journal = {Zootaxa}, volume = {3382}, year = {2012}, pages = {59-65}, chapter = {59}, author = {H. Freitag} } @article {30, title = {Description of Jolyelmis spangleri a new species from Chur{\'\i}-tepui (Chimant{\'a} Massif, Venezuela), with a description of the larva of J. spangleri and J. reitmaieri (Insecta: Coleoptera: Elmidae)}, journal = {Zootaxa}, volume = {3223}, year = {2012}, pages = {1-23}, chapter = {1}, abstract = {

Four species have been recognized in the genus Jolyelmis Spangler \& Faitoute; all collected at isolated table mountains, mostly in cool stenothermal hypocrenal streams. The known distribution of the genus is confined to Venezuela, and each species is here reported as endemic for the respective table mountain where it has been found. Samples from Chur\í-tepui and Mount Roraima in south-eastern Venezuela contained numerous adults and larvae of Elmidae among which is a new species, Jolyelmis spangleri, which is here described. The new species is illustrated and keyed with all other Jolyelmis, and new distributional data for J. reitmaieri\ {\v C}iampor, Jr. \& Kodada are included. Molecular analysis of partial cytochrome oxidase subunit I (cox1) confirmed conspecific life stages for two species: J. spangleri and J. reitmaieri. The larva of each species is described and illustrated, and the generic diagnosis for Jolyelmis larvae is provided. Among the known larvae of South American Elmidae, larvae of the genus Xenelmis Hinton appear to be the most similar. Morphological similarities are discussed. Habitats of adults and larvae are briefly described and illustrated by photographs.

}, author = {J. Kodada and T. Derka and F. {\v C}iampor Jr} } @article {29, title = {Malaysian species of Dryopomorphus Hinton, 1936 (Insecta: Coleoptera: Elmidae)}, journal = {Zootaxa}, volume = {3564}, year = {2012}, pages = {1-16}, abstract = {

We provide a review of species of the genus Dryopomorphus Hinton, 1936 occurring in Malaysia. Three known species: D. bishopi Hinton, 1971; D. satoi Spangler, 1985 and D. hendrichi\ {\v C}iampor Jr \& Kodada, 2006 are diagnosed and five new species from the Malay Peninsula and Borneo are described here: D. grandis, D. jaechi, D. memei, D. pekariki and D. sarawacensis. Habitus photographs, drawings of genitalia and diagnostic characters of all species are included.

}, keywords = {Coleoptera, Dryopomorphus, Elmidae, new species, Southeast Asia, taxonomy}, author = {F. {\v C}iampor Jr and Z. {\v C}iamporov{\'a}-Za{\v t}ovi{\v c}ov{\'a} and J. Kodada} }