Diptera.info - Discussion Forum: Dolichopodidae - Hercostomus exarticulatus?

Diptera.info » Identification queries » Diptera (adults)

Who is here? 1 guest(s)

Dolichopodidae - Hercostomus exarticulatus? - Greece
Xeroporcellio	#1 Posted on 15-10-2023 11:35
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	#2 Posted on 15-10-2023 11:35
Member Location: Posts: 181 Joined: 27.05.21	Arista.


Xeroporcellio	#3 Posted on 15-10-2023 11:35
Member Location: Posts: 181 Joined: 27.05.21	Ciliae-1.


Xeroporcellio	#4 Posted on 15-10-2023 11:36
Member Location: Posts: 181 Joined: 27.05.21	Ciliae-2.


Xeroporcellio	#5 Posted on 15-10-2023 11:36
Member Location: Posts: 181 Joined: 27.05.21	Fore tibia. Edited by Xeroporcellio on 15-10-2023 11:37


Xeroporcellio	#6 Posted on 15-10-2023 11:37
Member Location: Posts: 181 Joined: 27.05.21	Head.


Xeroporcellio	#7 Posted on 15-10-2023 11:37
Member Location: Posts: 181 Joined: 27.05.21	Hind femur.


Xeroporcellio	#8 Posted on 15-10-2023 11:38
Member Location: Posts: 181 Joined: 27.05.21	Mouthparts.


Xeroporcellio	#9 Posted on 15-10-2023 11:38
Member Location: Posts: 181 Joined: 27.05.21	Pleurae.


Xeroporcellio	#10 Posted on 15-10-2023 11:39
Member Location: Posts: 181 Joined: 27.05.21	Postpedicel.


Xeroporcellio	#11 Posted on 15-10-2023 11:39
Member Location: Posts: 181 Joined: 27.05.21	Scutellum.


Xeroporcellio	#12 Posted on 15-10-2023 11:39
Member Location: Posts: 181 Joined: 27.05.21	Thorax.


Igor Grichanov	#13 Posted on 16-10-2023 10:29
Member Location: Posts: 1681 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


Xeroporcellio	#14 Posted on 16-10-2023 11:12
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!