Teleopsis Rondani (Diptera, Diopsidae): Generic Review and the Ferruginea Group From Sri Lanka

Feijen, Hans R.

doi:10.1163/22119434-99900005

Cited by 9 publications

(11 citation statements)

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“…The average relative eye span (ratio eye span/body length) is very uniform among the species concerned and varies only between 66% and 71%. The categories used for description of the relative eye span are given in Feijen (1998). Hardly any difference occurs in the relative eye spans of females and males, although the relative eye span is for all species marginally longer in the males.…”

Section: Differential and Quantitative Charactersmentioning

confidence: 99%

“…In one species (E. brevispinus) the femur is even slightly more incrassate in the male, while normally in dimorphic diopsids the male has more slender femora. The categories used for description of the ratio length/width of the front femur are given in Feijen (1998). The numbers of tubercles in the two rows on the front femora cannot serve as differential characters within Eurydiopsis (table 1).…”

Section: Differential and Quantitative Charactersmentioning

confidence: 99%

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A Revision of Eurydiopsis Frey (Diptera, Diopsidae) With Description of Four New Oriental Species

Feijen

1998

Tijdschr Entomol

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Eurydiopsis Frey is defined. Catalogue and key to the six species are given, while differential and quantitative characters are discussed. The earlier proposed synonymy between E. subnotata (Westwood) from the Philippines and E. argentifera (Bigot) from Indonesia and Malaysia is rejected. Both species are redescribed, whereas E. helsdingeni sp. n. from Indonesia (Java), E. glabrostylus sp. n. from the Philippines, E. brevispinus sp. n. from Laos and Myanmar and E. sarawakensis sp. n. from Malaysia (Sarawak) are described.

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Section: Differential and Quantitative Charactersmentioning

confidence: 99%

Section: Differential and Quantitative Charactersmentioning

confidence: 99%

A Revision of Eurydiopsis Frey (Diptera, Diopsidae) With Description of Four New Oriental Species

Feijen

1998

Tijdschr Entomol

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“…Five species and three genera of Diopsidae were known to occur in Sri Lanka (Feijen 1998). The genera Diopsis Linnaeus and Sphyracephala Say were both represented by one species, while Teleopsis Rondani counted three species.…”

Section: Introductionmentioning

confidence: 99%

“…In the collections of NHMB, two male Teleopsis specimens were found which proved to be conspecific with Teleopsis ferruginea Röder of which the female holotype was fixed by monotypy. Feijen (1998) examined the teneral holotype and gave a redescription of T. ferruginea based on a series of 50 specimens. Comparison of the holotype and the two NHMB males with the series of 50 specimens showed that in fact two closely related species were involved.…”

Section: Introductionmentioning

confidence: 99%

A revision of the genus Teleopsis Rondani (Diptera, Diopsidae) in Sri Lanka with descriptions of two new species and a review of the other stalk-eyed flies from the island

Feijen

2020

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The literature on Sri Lankan Diopsidae is reviewed. Eight Diopsidae are now known to occur in Sri Lanka, five species in the genus Teleopsis and one species each in the genera Sphyracephala, Diopsis, and Cyrtodiopsis. The presence of Cyrtodiopsis requires confirmation to exclude the possibility of mislabelling. All five Teleopsis species are endemic, as are the Diopsis species and probably the Cyrtodiopsis species. Only Sphyracephala bipunctipennis Senior-White has a larger distribution as it also occurs in India. A key is presented for the Diopsidae of Sri Lanka. Three Teleopsis species were already known to occur in Sri Lanka: T. ferruginea Röder, T. krombeini Feijen and T. maculata Feijen. These species form the T. ferruginea species group. Two new species are now described for this group: Teleopsis neglectasp. nov. and Teleopsis sororasp. nov.Teleopsis ferruginea is redescribed, as an earlier redescription turned out to be based on a series of specimens of its sister species T. sororasp. nov. The other three Diopsidae of Sri Lanka are listed and illustrated. Allometric aspects of the five Teleopsis species are discussed. Three Teleopsis species are sexually dimorphic with regard to eye span, while two species are monomorphic. It is assumed that sexual dimorphism developed independently in the T. ferruginea species group. This brings the number of known cases of independent development of sexual dimorphism in the Diopsidae to ten.

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“…Species from the genus Teleopsis are mainly found in South East Asia (Feijen 1998). Many of the described Teleopsis species show sexual dimorphism within their eyespan, with males showing the greater exaggeration in head morphology, a trait strongly linked to sexual selection.…”

Section: Introductionmentioning

confidence: 99%

A morphological and molecular description of a new Teleopsis species (Diptera: Diopsidae) from Thailand

Földvári

Pomiankowski

Cotton

et al. 2007

Zootaxa

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A new species of Teleopsis (Diptera, Diopsidae) from Chiang Mai, Thailand is described and illustrated. Teleopsis thaii Földvári & Carr is shown to be a member of a species group, termed the dalmanni species group, along with three previously described species. Presented here are a morphological description of T. thaii and an allometric comparison of the species with other members of the Teleopsis genus. We also present multi-gene phylogenetic analyses to highlight the possible position of T. thaii within the dalmanni species group.

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Teleopsis Rondani (Diptera, Diopsidae): Generic Review and the Ferruginea Group From Sri Lanka

Cited by 9 publications

References 0 publications

A Revision of Eurydiopsis Frey (Diptera, Diopsidae) With Description of Four New Oriental Species

A Revision of Eurydiopsis Frey (Diptera, Diopsidae) With Description of Four New Oriental Species

A revision of the genus Teleopsis Rondani (Diptera, Diopsidae) in Sri Lanka with descriptions of two new species and a review of the other stalk-eyed flies from the island

A morphological and molecular description of a new Teleopsis species (Diptera: Diopsidae) from Thailand

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