Diptera.info

Posted by blaauw7 on 24-03-2019 17:29

Found today in the skylight behind my house, mid Netherlands. No idea?

Gr Dick

Edited by blaauw7 on 29-03-2019 16:10

Posted by John Carr on 24-03-2019 19:00

Family Ceratopogonidae, tribe Ceratopogonini. Reminds me of Stilobezzia (Acanthohelea) but the American speies are more spiny. (The acantho- prefix means with thorns.) https://bugguide....iew/571364

Posted by blaauw7 on 25-03-2019 16:52

That should be nice Paul. Thanks! I will send it to you together with the Stilpon graminum

Gr Dick

Posted by Paul Beuk on 28-03-2019 17:06

Well, well, ... the specimen told another story. The last antennal segment bears a small apical nipple, placing it in Forcipomyiinae. Wing characters and the seta on the paratergite lead to Atrichopogon. The enormous genitalia lead to subgemnus Psammopogon and that means a species new to the Netherlands. Just downloaded the key but have no time today to finish the ID. Maybe tomorrow...?

Posted by blaauw7 on 28-03-2019 18:34

Thanks Paul!!! Two new species in my garden for the Dutch fauna in one day. I'm curious what for Psammopogon it will be.

Gr Dick

Posted by Paul Beuk on 28-03-2019 18:52

Atrichopogon (Psammopogon) actually. There appear to be two likely candidates considering the distribution of the subgenus but time will tell.

Posted by John Carr on 29-03-2019 11:52

Atrichopogon looks good. I had not seen any Atrichopogon with large genitalia. In America we have a species of Stilobezzia with elongated genitalia.

Posted by Paul Beuk on 29-03-2019 13:12

#10

Atrichopogon (Psammopogon) flavolineatus, based on the genitalia. As mentioned above, another species new to the Netherlands.

Posted by blaauw7 on 29-03-2019 14:58

#11

Interesting species Paul! Only known from Austria, Bulgaria ,Czech Republic , Slovakia and Spanish Mainland. Not really close to The Netherlands. Do you know something about its ecology?

Gr dick

Posted by Paul Beuk on 30-03-2019 11:11

#12

Actually, it is also known from Germany (German checklist), Turkey, Greece, Hungary and Romania (World catalogue).
No info on biology (yet).

Edited by Paul Beuk on 30-03-2019 11:11

Posted by blaauw7 on 07-04-2019 11:28

#13

Found a female today in the skylight!

Gr Dick