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Drain Fly / Mosca-do-Banheiro

Clogmia albipunctata

Description:

(Williston, 1893)

Diptera: Nematocera: Psychodomorpha: Psychodoidea: Psychodidae: Psychodinae: Paramormiini

Comprimento/Length: ~3mm.

Largura/Width: ~4mm.

Hora/Hour: Primeira foto às 20:08:22 do dia 8 de Março de 2018. A segunda foto às 20:10:08 do dia 8 de Março de 2018. / First picture taken at 08:08:22pm on the 8th of March of 2018. The second picture was taken at 08:10:08pm on the 8th of March of 2018.

Other name: Filter Fly; Moth Fly.

Habitat:

Most commonly found in polluted or dirty areas in urbanized environments, especially (but not limited to) in bathrooms, sewage installations and drains. I'm unaware of their habitat in nature.

Mais comumente avistadas em áreas sujas ou poluídas em ambientes urbanos, especialmente (mas não limitado a) banheiros, instalações de esgoto e ralos. Desconheço seu habitat na natureza.

Notes:

Clogmia é um gênero de moscas da ordem Diptera, subordem Nematocera, infraordem Psychodomorpha, superfamília Psychodoidea, família Psychodidae, subfamília Psychodinae e tribo Paramormiini (e confusamente subtribo Paramormiina?).

Parece seguro chamar esta mosca de Clogmia. Apesar de abundantes informações no gênero similar, Telmatoscopus, muitos autores e artigos consideram este um subgênero de Clogmia. Este artigo (https://www.ncbi.nlm.nih.gov/pubmed/2525...) considera Telmatoscopus um subgênero de Clogmia e o Planeta Invertebrados (http://www.planetainvertebrados.com.br/i...) fala da migração de Telmatoscopus albipunctata para Clogmia albipunctata. Bug Guide (https://bugguide.net/node/view/250014) considera Telmatoscopus um sinônimo de Clogmia. Insectoid (http://insectoid.info/insecta/diptera/ps...) considera Clogmia um subgênero de Telmatoscopus. Sendo assim, concluo que é seguro dizer que essa mosca é uma Clogmia dado traços morfológicos e os fatos mencionados.

As asas de Psychodinae são chatas. Os segmentos flagelares são nodiformes e as antenas são mais longas do que o comprimento da asa. R5 normalmente finda no ápice alar = 4. Os segmentos terminais das antenas não são reduzidos em tamanho. Rs não é pectinada (exemplo: R3 e R4 não se ramificam independentemente de Rs). As asas são geralmente de largura moderada. "Asconóides" das antenas são variáveis, mas raramente consistem de um único ramo anterior. Traços morfológicos variam entre membros de Clogmia. Essa descrição foi dada através da chave de Quate, 1960 à cerca dos Psychodinae.

Os adultos lembram pequenas mariposas com corpos peludos, geralmente de coloração escura. As larvas são desprovidas de olhos e pernas. Possuem cabeça escurecida e mais estreita que o corpo. Cada segmento possui uma ou mais listras escuras retangulares dorsalmente; os segmentos terminais se estreitam, formando um tubo respiratório escurecido. A pupa parece um minúsculo grão de arroz marrom e os ovos são de coloração marrom ou creme. Os adultos são normalmente vistos em instalações de esgoto, banheiros e em qualquer lugar que possa acumular matéria em decomposição. Essas moscas são atraídas pela luz. As larvas vivem em lama orgânica que forma nas superfícies internas dos ralos e canos de esgoto. A pupa ocorre na superfície do filme orgânico onde a larva vivia. As larvas se alimentam de algas, fungos e bactérias no esgoto e da lama orgânica, enquanto os adultos se alimentam de água poluída e néctar de flores. 30 a 200 ovos podem ser depositados de uma só vez no filme gelatinoso nas linhas do ralo. Os ovos nascem entre 32 e 59 horas após o depósito. As larvas entram em estágio pupa entre 9 e 15 dias depois, que dura entre 20 e 40 horas. Os adultos de Psychodinae vivem por cerca de duas semanas.

As larvas são importantes purificadoras de esgoto. Os adultos possuem vôo fraco.

FONTES:

https://www.bugguide.net/node/view/64068...
https://www.bugguide.net/node/view/3128
https://cse.google.com.br/cse?cx=partner...

ENGLISH VERSION HERE:

Clogmia is a genus of flies in the order Diptera, suborder Nematocera, infraorder Psychodomorpha, superfamily Psychodoidea, family Psychodidae, subfamily Psychodinae and tribe Paramormiini (and confusingly subtribe Paramormiina?).

It seems safe to call this fly a member of the genus Clogmia. Despite abundant information on a similar genus, Telmatoscopus, many authors and articles consider this a subgenus of Clogmia. This article (www.ncbi.nlm.nih.gov/pubmed/25253222) considers Telmatoscopus a subgenus of Clogmia and Planeta Invertebrados (http://www.planetainvertebrados.com.br/i...) speaks of the migration of Telmatoscopus albipunctata to Clogmia albipunctata. Bug Guide (https://www.bugguide.net/node/view/25001...) considers Telmatoscopus a synonym of Clogmia. Insectoid (http://insectoid.info/insecta/diptera/ps...) considers Clogmia a subgenus of Telmatoscopus. Thus, I conclude it is safe to say this fly is a Clogmia due to morphological traits and the facts mentioned before.

The wings of Psychodinae are broad and are 2 to 3 times as long as wide = 2. The flagellar segments are nodiform and the antennae are longer than the width of the wing. R5 usually ends in wing apex = 4. The terminal antenna segments are not reduced in size. Rs is not pectinate (example: R3 and R4 do not branch independently from Rs). The wings are generally of moderate width. "Ascoids" of the antennae are variable, but seldom cosists of a single anterior branch. Morphological traits vary among members of Clogmia. This description is given towards the key in Quate, 1960 from Psychodinae.

The adults are reminiscent of tiny moths with hairy bodies, generally dark in coloring. The larvae are eyeless and legless with darker heads which are narrower than the body. Each segment with one or more dark rectangular bands dorsally; terminal segment narrows, forming a dark-colored breathing tube. The pupa is reminiscent of a grain of brown rice and the egg is brown to cream-colored. The adults are normally found around sewage installations, bathrooms and anywhere that might accumulate decaying material. These flies are attracted to light. The larvae lives in organic sludge that forms on the inner surfaces of drains and sewage pipes. The pupa occurs on the surface of the organic film that the larvae have been living in. The larvae feed on algae, fungi and bacteria in sewage and organic sludge while the adults feed in polluted water and flower nectar. 30 to 200 eggs may be laid at a time in the gelatinous film lining drains. The eggs hatch within 32 to 48 hours after being laid. The larvae pupate 9 to 15 days later and the pupa stage lasts 20 to 40 hours. Adults of Psychodinae have a lifespan of about two weeks.

The larvae are important purifiers of sewage. The adults are weak fliers.

SOURCES:

https://bugguide.net/node/view/64068
https://www.bugguide.net/node/view/3128
https://cse.google.com.br/cse?cx=partner...

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6 Comments

Oscar Neto
Oscar Neto 6 years ago

Thank you Ashley, I'm humbled <3

AshleyT
AshleyT 6 years ago

Your spotting has been nominated for the Spotting of the Week. The winner will be chosen by the Project Noah Rangers based on a combination of factors including: uniqueness of the shot, status of the organism (for example, rare or endangered), quality of the information provided in the habitat and description sections. There is a subjective element, of course; the spotting with the highest number of Ranger votes is chosen. Congratulations on being nominated!

maplemoth662
maplemoth662 6 years ago

Your welcome, Oscar Neto....

Oscar Neto
Oscar Neto 6 years ago

Thank you maple and Daniele. Photographed yesterday the pupa of Clogmia, will post it in the next batch of pictures 😉

DanielePralong
DanielePralong 6 years ago

Most interesting looking fly Oscar!

maplemoth662
maplemoth662 6 years ago

Two, very interesting photos....

Oscar Neto
Spotted by
Oscar Neto

Fortaleza, CE, Brazil

Spotted on Mar 8, 2018
Submitted on Apr 3, 2018

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