Diptera.info :: Identification queries :: Diptera (adults)
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 Stomina calvescens ♀ (Tachinidae)
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| rafael_carbonell |
Posted on 29-08-2022 23:16
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 Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
On a wall, 26.viii.2022 (Spain: Girona: Beuda), determination using Mosch Web [Cerretti, Tschorsnig, Lopresti, Di Giovanni. ZooKeys 205: 5–18. doi: 10.3897/zookeys.205.3409]
rafael_carbonell attached the following image:  [261.64Kb] Edited by rafael_carbonell on 30-11-2023 20:35 |
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| rafael_carbonell |
Posted on 29-08-2022 23:17
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Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
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rafael_carbonell attached the following image:  [240.43Kb] Edited by rafael_carbonell on 29-08-2022 23:22 |
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| rafael_carbonell |
Posted on 29-08-2022 23:23
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Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
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rafael_carbonell attached the following image:  [287.94Kb] |
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| rafael_carbonell |
Posted on 29-08-2022 23:24
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Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
[TAXA OUTPUT] Acemya Robineau-Desvoidy, 1830: 202 Stomina Robineau-Desvoidy, 1830: 411 [SELECTED CHOICE] (1) EYE -Eye bare or nearly bare: hairs, if present, not longer than diameter of 2 eye facets (2) OCELLI -ocelli present (25) DORSAL PART OF OCCIPUT -postero dorsal part of head without black setulae behind postocular row (39) SCUTUM: PRESUTURAL STRIPES -... with three, four or five presutural dark vittae, or uniformly covered with pruinosity (44) PRESUTURAL ACROSTICHAL SETAE -... two ... (45) PRESUTURAL DORSOCENTRAL SETAE -... two ... (46) POSTSUTURAL DORSOCENTRAL SETAE -... three ... (52) SCUTELLUM COLOUR -scutellum mainly black, more or less red or yellowish apically -scutellum mainly red or yellowish (73) BEND OF M -bend of M forming a distinctly obtuse angle (76) RATIOS OF VEIN M -section of M between R-M and DM-Cu visibly longer than section between DM-Cu and bend of M (77) CROSSVEIN DM-Cu -crossvein DM-Cu not exceptionally oblique (78) PETIOLE [STALK] -cell r4+5 open [or vein m not reaching wing margin] (88) PRUINOSITY OF ABDOMEN -abdomen entirely covered by dense, sometimes not uniform, pruinosity, tessellated or showing dark patches https://www.inaturalist.org/observations/132483351 |
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| Zeegers |
Posted on 30-08-2022 08:03
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Member Location: Soest, NL Posts: 18787 Joined: 21.07.04 |
Difficult. There seem to be only 2 post IA on thorax, that should be a big clue (favouring Acemyiini, I guess). Any chance of a pic showing lateral view, o matter how bad ? Theo |
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| rafael_carbonell |
Posted on 30-08-2022 16:18
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Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
No, sorry :-( the camera could'nt get into the wall, to take a shot more ventrally. There are clearly 2 post sutural intra-alar setae. If I add two postsutural intra-alar setae separated by a distance equal at most to distance between the first seta and the suture, then it is also left Acemya and Stomina. I add another dorsolateral view. rafael_carbonell attached the following image:  [273.96Kb] Edited by rafael_carbonell on 30-08-2022 17:03 |
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| John Carr |
Posted on 30-08-2022 16:39
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 Member Location: Massachusetts, USA Posts: 10176 Joined: 22.10.10 |
The first flagellomere of Acemya is pointed at the upper tip, not rounded as usual in Tachinidae. |
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| rafael_carbonell |
Posted on 30-08-2022 17:07
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Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
Thanks, John, then it's not Acemyia
rafael_carbonell attached the following image:  [76.81Kb] Edited by rafael_carbonell on 30-08-2022 17:08 |
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| rafael_carbonell |
Posted on 31-08-2022 18:49
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Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
Even if the view of the flagellomere is not good, Acemyia looks quite different. |
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| Zeegers |
Posted on 31-08-2022 20:04
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Member Location: Soest, NL Posts: 18787 Joined: 21.07.04 |
Well, it could be a female Stomina, but I am not totally sure. Theo |
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| rafael_carbonell |
Posted on 25-01-2023 01:20
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Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
Ok |
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| rafael_carbonell |
Posted on 29-11-2023 20:28
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Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
Repeated the key (1) EYE -Eye bare or nearly bare: hairs, if present, not longer than diameter of 2 eye facets (2) OCELLI -ocelli present (25) DORSAL PART OF OCCIPUT -postero dorsal part of head without black setulae behind postocular row (30) APEX OF FIRST FLAGELLOMERE -non-sharpened apex (39) SCUTUM: PRESUTURAL STRIPES -... with three, four or five presutural dark vittae, or uniformly covered with pruinosity (44) PRESUTURAL ACROSTICHAL SETAE -... two ... (45) PRESUTURAL DORSOCENTRAL SETAE -... two ... (46) POSTSUTURAL DORSOCENTRAL SETAE -... three ... (47) POSTSUTURAL INTRA-ALAR SETAE -two postsutural intra-alar setae separated by a distance equal at most to distance between the first seta and the suture (52) SCUTELLUM COLOUR -scutellum mainly black, more or less red or yellowish apically -scutellum mainly red or yellowish (73) BEND OF M -bend of M forming a distinctly obtuse angle (76) RATIOS OF VEIN M -section of M between R-M and DM-Cu visibly longer than section between DM-Cu and bend of M (77) CROSSVEIN DM-Cu -crossvein DM-Cu not exceptionally oblique (78) PETIOLE [STALK] -cell r4+5 open [or vein m not reaching wing margin] (88) PRUINOSITY OF ABDOMEN -abdomen entirely covered by dense, sometimes not uniform, pruinosity, tessellated or showing dark patches. Taxa output= Stomina Robineau-Desvoidy, 1830: 411 Somebody else wrote me it was not S.caliendrata https://www.inaturalist.org/observations/132483351 Edited by rafael_carbonell on 29-11-2023 20:29 |
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| eklans |
Posted on 30-11-2023 13:05
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Member Location: Franconia, Germany Posts: 3693 Joined: 11.11.18 |
The frons seems to be bigger than an eye? Abdomen seems to be black lateral - not yellowish or red (1st img.)? Fore tarsomere 5 seems to be approx. as long as wide (2nd img)? And if the claws of the fore tarsus are at most half as long as tarsomere 5 it could be the female Stomina calvescens from Ceretti (2010): I tachinidi della fauna italiana Edited by eklans on 30-11-2023 13:11 Greetings, Eric Kloeckner |
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| rafael_carbonell |
Posted on 30-11-2023 20:31
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Member Location: Beuda, Girona, Catalonia Posts: 667 Joined: 23.03.06 |
Thank you Eric :-) I have found and studied the key and agree it must be calvescens Best wishes Rafael rafael_carbonell attached the following image:  [227.11Kb] Edited by rafael_carbonell on 30-11-2023 20:34 |
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| Zeegers |
Posted on 03-12-2023 09:29
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Member Location: Soest, NL Posts: 18787 Joined: 21.07.04 |
Females Stomina are very tricky …. |
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