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Calypter size
Lothar Schuh	#1 Posted on 03-10-2020 19:01
Member Location: Posts: 170 Joined: 12.07.20	Hello, is it "more or less" sufficient to look at the size of calypters: - both have same size: Anthomyidae - lower is larger: Musciudae? Can I get a solid hint? Regards Lothar


John Carr	#2 Posted on 04-10-2020 14:47
Member Location: Massachusetts, USA Posts: 10182 Joined: 22.10.10	Lothar Schuh wrote: Hello, is it "more or less" sufficient to look at the size of calypters: - both have same size: Anthomyidae - lower is larger: Musciudae? Can I get a solid hint? Regards Lothar That is usually true. There are a few Muscidae with small lower calypters (subfamily Azeliinae, some Coenosiinae) and a few Anthomyiidae with large lower calypters, but not as large as Musca or Phaonia. You can also look at the hind tibia. Very few Muscidae have 2 or more posterodorsal bristles, and very few Anthomyiidae have fewer than 2. On the thorax, the very few Anthomyiidae with 4 postsutural dorsocentrals have many more hairs on the thorax than similar Muscidae. Very few Anthomyiidae have hairy eyes. If there are any Drymeia with 4 postsutural dorsocentrals they may be confusing.


Lothar Schuh	#3 Posted on 04-10-2020 17:33
Member Location: Posts: 170 Joined: 12.07.20	Thanks… can you be so kind to specify "hairy eyes". I am just amateur, layman, beginner. Reading a bit about Chaetotaxy revealed that hairs near the eyes are: - occipital hair - fascial hair - subvibrissal hair - parafascial hair - … where to look at? Lothar


Paul Beuk	#4 Posted on 04-10-2020 18:30
Super Administrator Location: Netherlands Posts: 19370 Joined: 11.05.04	See the hairy eyes in this image http://www.tuin-t...5-2014.jpg Edited by Paul Beuk on 04-10-2020 19:01 Paul - - - - Paul Beuk on https://diptera.info


Lothar Schuh	#5 Posted on 05-10-2020 06:56
Member Location: Posts: 170 Joined: 12.07.20	thank you all!