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 Dolichopodidae - Hercostomus exarticulatus? - Greece
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| Xeroporcellio |
Posted on 15-10-2023 12:35
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Member Location: Posts: 181 Joined: 27.05.21 |
Hello, I have the following female Dolichopodidae from Lesvos, Greece. Using Grichanov 2007 I managed to identify the genus as Hercostomus and, using the key for the females, as H. exarticulatus. What do you believe? Below, I provide photos of the specimen, as well as the characters I used in the key: 1) Femora yellow. 2) Lower postocular setae light. 3) Antennae entirely black. 4) Fore tibia without median posteroventral seta. 5) Proboscis dark. 6) Wing veins R4+5 and M1+2 convergent, at least at apex. 7) Scutellum bare. 8) Metepimeron black. 9) Basal segment of antennal stylus not thickened at apex. Xeroporcellio attached the following image:  [44.17Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:35
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Member Location: Posts: 181 Joined: 27.05.21 |
Arista.
Xeroporcellio attached the following image:  [131.07Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:35
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Member Location: Posts: 181 Joined: 27.05.21 |
Ciliae-1.
Xeroporcellio attached the following image:  [173.07Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:36
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Member Location: Posts: 181 Joined: 27.05.21 |
Ciliae-2.
Xeroporcellio attached the following image:  [168.1Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:36
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Member Location: Posts: 181 Joined: 27.05.21 |
Fore tibia.
Xeroporcellio attached the following image:  [112.56Kb] Edited by Xeroporcellio on 15-10-2023 12:37 |
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| Xeroporcellio |
Posted on 15-10-2023 12:37
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Member Location: Posts: 181 Joined: 27.05.21 |
Head.
Xeroporcellio attached the following image:  [284.66Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:37
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Member Location: Posts: 181 Joined: 27.05.21 |
Hind femur.
Xeroporcellio attached the following image:  [149.96Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:38
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Member Location: Posts: 181 Joined: 27.05.21 |
Mouthparts.
Xeroporcellio attached the following image:  [219.41Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:38
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Member Location: Posts: 181 Joined: 27.05.21 |
Pleurae.
Xeroporcellio attached the following image:  [251.02Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:39
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Member Location: Posts: 181 Joined: 27.05.21 |
Postpedicel.
Xeroporcellio attached the following image:  [125Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:39
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Member Location: Posts: 181 Joined: 27.05.21 |
Scutellum.
Xeroporcellio attached the following image:  [155.88Kb] |
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| Xeroporcellio |
Posted on 15-10-2023 12:39
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Member Location: Posts: 181 Joined: 27.05.21 |
Thorax.
Xeroporcellio attached the following image:  [234.01Kb] |
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| Igor Grichanov |
Posted on 16-10-2023 11:29
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 Member Location: St.Petersburg, Russia Posts: 1717 Joined: 17.08.06 |
It is not H. exarticulatus. There is a recently described species with similar characters. Unfortunately, its female was poorly described. Hercostomus thraciensis Kechev et Negrobov, 2015: Acta Zoologica Bulgarica 67 (2): 200. Type locality: Bulgaria: Basha site, northwest of the town of Chirpan, 148 m. Palaearctic: Bulgaria, Israel, Turkey. Igor Grichanov |
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| Xeroporcellio |
Posted on 16-10-2023 12:12
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Member Location: Posts: 181 Joined: 27.05.21 |
Igor Grichanov wrote: It is not H. exarticulatus. There is a recently described species with similar characters. Unfortunately, its female was poorly described. Hercostomus thraciensis Kechev et Negrobov, 2015: Acta Zoologica Bulgarica 67 (2): 200. Type locality: Bulgaria: Basha site, northwest of the town of Chirpan, 148 m. Palaearctic: Bulgaria, Israel, Turkey. Thanks a lot for the reply! Unfortunately, currently, we only have this one female. However, my colleague will try to collect more next spring! |
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