Fabio Laurindo da Silva

A taxonomic revision of genus Labrundinia Fittkau, 1962 (Diptera: Chironomidae: Tanypodinae)

The species of the genus Labrundinia (Diptera: Chironomidae: Tanypodinae: Pentaneurini) are revised, described and figured. Keys to known adult males, pupae and larvae are provided. Fourteen previously known species are redescribed, and 25 species from Neotropical region are diagnosed and described as new to science. These species treated are L. amandae sp. n., L. amazonica sp. n., L. becki Beck et Beck, L. carolae sp. n., L. costaricae sp. n., L. fera Roback, L. fiorelinii sp. n., L. fittkaui sp. n., L. fosteri Roback, L. hirsuta Roback, L. gregi sp. n., L. jasoni sp. n., L. johannseni Beck et Beck, L. kogilamae sp. n., L. longipalpis Goetghebuer, L. mayaca sp. n., L. meta Roback, L. multidentata sp. n., L. nathani sp. n., L. neopilosella Beck et Beck, L. nicaraguensis sp. n., L. opela Roback, L. panamensis sp. n., L. parabecki Roback, L. parafittkaui sp. n., L. parareniformis sp. n., L. paravirescens sp. n., L. paulae sp. n., L. pilosella Loew, L. reniformis sp. n., L. robacki sp. n., L. semicurvata sp. n., L. setosa sp. n., L. separata Edwards, L. sofiae sp. n., L. tenata Roback, L. trilucida sp. n., L. unicolor sp. n., L. virescens Beck et Beck. A diagnosis of the genus is presented and morphological differences to closely related genera are discussed.

Revision of Labrundinia maculata Roback, 1971, a new junior synonym of L. longipalpis (Goetghebuer, 1921) (Diptera: Chironomidae: Tanypodinae)

Labrundinia maculata Roback, 1971 is placed as a new junior synonym of Labrundinia longipalpis (Goetghebuer, 1921). The male and female adults, pupa and larva of the species are redescribed and figured. The species is now considered Holarctic in distribution and new records are reported.

The immature stages of Labrundinia tenata (Diptera: Chironomidae: Tanypodinae) and redescription of the male

The immature stages of Labrundinia tenata Roback, 1987 (Diptera: Chironomidae: Tanypodinae) are de- scribed and illustrated and the male is redescribed. Larvae were collected in aquatic systems in southeastern Brazil, where they are associated with aquatic macrophytes. The three semaphoronts of L. tenata are recognized: (a) Male by the abdominal segments I pale brown, II-VI with brown transverse band along proximal margin, VII, VIII almost wholly brown; hypopygium brown; anterior margin of sternapodeme rounded, no distinct spur. (b) Pupa by the thoracic horn S-shaped and a shallow preapical groove; abdominal segment VII with two lateral setae. (c) Larva with posteroventral spine group; posterior parapod with single elongate claw serrated on inner margin and numerous simple claws.

First record of larvae of Chironomidae (Insecta, Diptera) as prey of Temnocephala sp. (Platyhelminthes, Temnocephalidae), an ectosymbiont on larvae of Corydalidae (Megaloptera)

First record of larvae of Chironomidae (Insecta, Diptera) as prey of Temnocephala sp. (Platyhelminthes, Temnocephalidae), an ectosymbiont on larvae of Corydalidae (Megaloptera). This study constitutes the first record of Temnocephala Blanchard, an ectosymbiont on Corydalidae, as a possible predator of chironomid larvae. Twenty-eight Corydalidae larvae (Corydalus and Protochauliodes) were examined under stereomicroscopic in search for Temnocephala and Chironomidae larvae, of which five megalopteran larvae had 24 Temnocephala sp. associated. Furthermore, eight of these Temnocephala worms had chironomid larvae in their gut contents, an interaction previously unknown. Gut content analyses revealed Corynoneura as the commonest chironomid, but larvae of Larsia, Rheotanytarsus and Tanytarsus were recorded as well. This study included Corydalus and Protochauliodes as hosts for Temnocephala, which might be important for this worm dispersion and population dynamics.

A new species of Pelomus Reiss, 1989 (Diptera: Chironomidae: Chironominae) from the Neotropical Region, with emendation of the generic diagnosis

A new species of Pelomus Reiss, 1989 (Diptera: Chironomidae: Chironominae), P. sophiae sp. n., is described and figured as male, pupa and larva. Diagnoses for male and pupa of the genus are emended. The larvae, reared in the laboratory to obtain all life stages, were collected on bottom sand of reservoir and ponds, in southeast Brazil.

Two new species of Parapentaneura (Diptera: Chironomidae: Tanypodinae) from Brazil, with keys to the males and immature stages

Two new species of Parapentaneura Stur, Fittkau et Serrano, 2006 (Diptera: Chironomidae: Tanypodinae) from southeastern Brazil are described and figured as male, pupa and larva: P. brunnescens and P. flavescens. Keys to the males, pupae and larvae of known species of Parapentaneura are provided. http://www.zoobank.org/urn:lsid:zoobank.org:pub:E6860EBE-B781-4DDA-9650-6E6EA3A0309E

Parasitismo por Mermithidae (Nematoda) em larvas do gênero Chironomus gr. decorus (Diptera: Chironomidae) no Rio dos Peixes, Dois Córregos, SP, Brasil

We report the incidence of Mermithidae (Nematoda) parasitism in Chironomus gr. decorus larvae (Diptera: Chironomidae) at Rio dos Peixes, Dois Corregos, central west region of Sao Paulo State, Brazil. In this study, of a total of 791 larvae, 205 (25.9%) were infected by mermithid worms, indicating that Chironomidae larvae are commonly parasitized by Mermithidae worms.