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, Hans R.; Feijen, Cobi

doi:10.3897/zookeys.946.53108

Cited by 4 publications

(6 citation statements)

References 15 publications

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“…Some publications described species that were discovered directly as a result of being photographed and shared online (Winterton et al 2012, Skejo and Caballero 2016, Collins & Schneider 2020). In others, describers had physical specimens in hand and used community photographs to enhance the description because collected specimens were in poor condition (Feijen and Feijen 2020, Winterton 2020), supplement knowledge about distribution (Miller and Halbert 2014, Burt et al 2015, Hespenheide 2019, Matson and Wagner 2020) and phenology (Bond et al 2020), determine when a species was first recorded in an area (Hayden 2021), and illustrate behavior (Kallies and Farino 2018). Finally, in a few instances, photographs of unidentified, collected specimens were posted online, which facilitated experts connecting and describing species (Plakidas and Ferro 2016).…”

Section: Resultsmentioning

confidence: 99%

Online community photo-sharing in entomology: a large-scale review with suggestions on best practices

Skvarla,

Fisher

2023

Annals of the Entomological Society of America

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Over the past 2 decades, digital photography has grown increasingly accessible. This has ushered in a golden age of community science, where nonspecialists share natural history observations from across the globe via digital media. Importantly, these observations are accessible to researchers, who can readily share expertise directly with the community and connect observations and observers with research projects. This has fueled a rising number of publications combining specialist and nonspecialist observations, which occasionally make national and international headlines. Entomology has embraced this trend, but the scope and impact are not clear. A review of its effect on the field is therefore warranted. Herein, we review and analyze publications that incorporated information from photographs shared on photo-sharing websites. In total, 2,123 publications that incorporated information from 77 photo-sharing websites were examined. Seven websites accounted for 66% of the publication citations. 84.6% of publications focused on data from the Holarctic ecoregion (56.2% Palearctic and 28.4% Nearctic). Forty-six arthropod orders were represented, but the Big Five—Lepidoptera, Coleoptera, Hymenoptera, Hemiptera, and Diptera—accounted for 75% of all publications. We divide the publications into 28 discovery and use categories, review how community photograph data has been used within each category, and provide examples of categories utilized in nonentomology natural history fields, which we hope will provide inspiration and spur future research. We also discuss benefits and considerations when using such data—including the accuracy of identifications, inherent biases, and digital data impermanence—and suggest best practices to follow.

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Section: Resultsmentioning

confidence: 99%

Online community photo-sharing in entomology: a large-scale review with suggestions on best practices

Skvarla,

Fisher

2023

Annals of the Entomological Society of America

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“…The finding that many genes with sex-biased expression in eye imaginal discs are translocated to the sex chromosome 57 and positive correlations between male and female eye spans among various species of stalk-eyed flies may be related to this phenomenon 13 . However, as many Diopsidae species show sexual monomorphy with regards to eye span 13 – 18 , their eye stalks are considered to have functions for other than contest and courtship even in females. (2) Females with long eye stalks are preferred by males, but long eye stalks induce a smaller benefit to females than to males, so they have gradually stopped evolving.…”

Section: Discussionmentioning

confidence: 99%

“…In some species, eye span is sexually dimorphic; that is, the allometric slope of eye stalks versus body length in males are steeper than that in females in dimorphic species 11 – 14 . However, many diopsid species are sexually monomorphic, and dimorphisms have evolved polyphyletically in a complicated manner in each of the two subfamilies (Sphyracephalinae and Diopsinae) 13 – 18 . Stronger sexual dimorphisms are seen in species with long, thin eye stalks and are often associated with mate choice as well as contest outcomes 19 – 22 .…”

Section: Introductionmentioning

confidence: 99%

Differences in energy source storage in eye stalks between two species of stalk-eyed flies, Sphyracephala detrahens and Cyrtodiopsis dalmanni

Miki

Fukuda

Takeda

et al. 2022

Sci Rep

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Some diopsid flies have sexually dimorphic eye stalks that are assumed to require considerable nutrition for growth but are advantageous in competition and courtship. According to the handicap theory, the eye span in some dimorphic species serves as a reliable signal of individual quality to an opponent. However, it is not well understood how well eye span represents energy source storage. In this study, we focused on two species: Sphyracephala detrahens, which has weak dimorphism, and Cyrtodiopsis dalmanni, which has moderate dimorphism. We found that the eye stalks of the former species contained more fat bodies than those of the latter species. When the flies were starved, the fat body cells in the eye stalks underwent autophagy. A strong positive correlation was consistently found between eye span and starvation tolerance for S. detrahens, while a weak correlation was found for C. dalmanni. Furthermore, starvation decreased the contest winning rate between S. detrahens pairs with similar eye spans. These findings suggest that the presentation of resource holding potential may be larger than the actual storage ability and that the fidelity of nutritional storage signaling varies; the signal presented by S. detrahens is more reliable than that presented by C. dalmanni.

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“…Baker et al (2001), Meier & Baker (2002), and Földvári et al (2007) considered species of Teleopsis Rondani, 1875 and Cyrtodiopsis Frey, 1928 to be congeneric based on molecular affinity provided by partial nucleotides alignments of three mitochondrial and three nuclear genes. Feijen (2011), however, disputed the single clade phylogenetic hypothesis by Baker et al (2001) and preferred Teleopsis and Cyrtodiopsis to be paraphyletic and that is being widely followed in diopsid taxonomy and biology till date (Roskov et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Another objective of this study is to provide a better understanding of C. whitei in its area of distribution and its relation to other species so as to ensure its accurate identification and a better taxonomic appraisal of the genus. To that end, an identification key to the known species of Cyrtodiopsis, sensu Feijen (2011), and a note on the habitat have also been provided.…”

Section: Introductionmentioning

confidence: 99%

<b>Taxonomic status and additional description of White’s Stalked-eyed Fly <I>Cyrtodiopsis whitei</I> (Curran, 1936) (Diptera: Diopsidae) from India with a key to the allied species and note on its habitat</b>

Agarwala

2018

J. Threat. Taxa

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Systematics and ecology of Cyrtodiopsis whitei (Curran, 1936), initially described in brief from a tropical dry deciduous forest in eastern India as Diopsis whitei, remained obscure for want of the type specimens. Recent collections of male and female specimens of this species from a new locality in the northeastern part of India, the country of the type locality, has allowed a fresh appraisal of its morphology, taxonomic position and habitat ecology in the background of several studies done on Diopsidae. Herein are included some new characters, hitherto unknown in the species of Cyrtodiopsis, a taxonomic key to the separation of four species, considered monophyletic under the genus, and a note on the habitat of the species.

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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

Cited by 4 publications

References 15 publications

Online community photo-sharing in entomology: a large-scale review with suggestions on best practices

Online community photo-sharing in entomology: a large-scale review with suggestions on best practices

Differences in energy source storage in eye stalks between two species of stalk-eyed flies, Sphyracephala detrahens and Cyrtodiopsis dalmanni

<b>Taxonomic status and additional description of White’s Stalked-eyed Fly <I>Cyrtodiopsis whitei</I> (Curran, 1936) (Diptera: Diopsidae) from India with a key to the allied species and note on its habitat</b>

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